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Opa27 Opa37

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Distributed by: www.Jameco.com ✦ 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. Jameco Part Number 275784 OPA 27 OPA 27 OPA27 OPA37 SBOS135A – JANUARY 1984 – REVISED OCTOBER 2003 Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS FEATURES ● ● ● ● ● ● ● LOW NOISE: 4.5nV/√Hz max at 1kHz LOW OFFSET: 100µV max LOW DRIFT: 0.4µV/°C HIGH OPEN-LOOP GAIN: 117dB min HIGH COMMON-MODE REJECTION: 100dB min HIGH POWER-SUPPLY REJECTION: 94dB min FITS OP-07, OP-05, AD510, AND AD517 SOCKETS APPLICATIONS ● ● ● ● ● ● DESCRIPTION PRECISION INSTRUMENTATION DATA ACQUISITION TEST EQUIPMENT PROFESSIONAL AUDIO EQUIPMENT TRANSDUCER AMPLIFIERS RADIATION HARD EQUIPMENT The OPA27 and OPA37 are ultra-low noise, high-precision monolithic operational amplifiers. Laser-trimmed thin-film resistors provide excellent longterm voltage offset stability and allow superior voltage offset compared to common zener-zap techniques. A unique bias current cancellation circuit allows bias and offset current specifications to be met over the full –55°C to +125°C temperature range. The OPA27 is internally compensated for unity-gain stability. The decompensated OPA37 requires a closed-loop gain ≥ 5. The Burr-Brown OPA27 and OPA37 are improved replacements for the industry-standard OP-27 and OP-37. 7 +VCC 8 Trim 1 Trim 6 Output 2 –In 3 +In 4 –VCC Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. Copyright © 1984-2003, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. www.ti.com SPECIFICATIONS At VCC = ±15V and TA = +25°C, unless otherwise noted. OPA27G OPA37G PARAMETER CONDITIONS MIN TYP MAX UNITS 3.8 3.3 3.2 0.09 1.7 1.0 0.4 8.0 5.6 4.5 0.25 0.6 nV/√Hz nV/√Hz nV/√Hz µVp-p pA/√Hz pA/√Hz pA/√Hz ±25 ±0.4 0.4 ±100 ±1.8 (6) 2.0 µV µV/°C µV/mo 120 ±1 ±20 dB µV/V BIAS CURRENT Input Bias Current ±15 ±80 nA OFFSET CURRENT Input Offset Current 10 75 nA INPUT NOISE (6) Voltage, fO = 10Hz fO = 30Hz fO = 1kHz fB = 0.1Hz to 10Hz Current,(1) fO = 10Hz fO = 30Hz fO = 1kHz OFFSET VOLTAGE (2) Input Offset Voltage Average Drift (3) Long Term Stability (4) Supply Rejection TA MIN to TA MAX ±VCC = 4 to 18V ±VCC = 4 to 18V 94 IMPEDANCE Common-Mode VOLTAGE RANGE Common-Mode Input Range Common-Mode Rejection OPEN-LOOP VOLTAGE GAIN, DC FREQUENCY RESPONSE Gain-Bandwidth Product (5) Slew Rate (5) Settling Time, 0.01% RATED OUTPUT Voltage Output Output Resistance Short Circuit Current POWER SUPPLY Rated Voltage Voltage Range, Derated Performance Current, Quiescent 2 || 2.5 GΩ || pF ±11 100 ±12.3 122 V dB RL ≥ 2kΩ RL ≥ 1kΩ 117 124 124 dB dB OPA27 OPA37 VO = ±10V, RL = 2kΩ OPA27, G = +1 OPA37, G = +5 OPA27, G = +1 OPA37, G = +5 5 (6) 45 (6) 8 63 MHz MHz 1.7 (6) 11(6) 1.9 11.9 25 25 V/µs V/µs µs µs ±12 ±10 ±13.8 ±12.8 70 25 V V Ω mA VIN = ±11VDC RL ≥ 2kΩ RL ≥ 600Ω DC, Open Loop RL = 0Ω 60(6) ±15 ±4 IO = 0mADC TEMPERATURE RANGE Specification Operating 3.3 –40 –40 VDC ±22 5.7 VDC mA +85 +85 °C °C NOTES: (1) Measured with industry-standard noise test circuit (Figures 1 and 2). Due to errors introduced by this method, these current noise specifications should be used for comparison purposes only. (2) Offset voltage specification are measured with automatic test equipment after approximately 0.5 seconds from power turnon. (3) Unnulled or nulled with 8kΩ to 20kΩ potentiometer. (4) Long-term voltage offset vs time trend line does not include warm-up drift. (5) Typical specification only on plastic package units. Slew rate varies on all units due to differing test methods. Minimum specification applies to open-loop test. (6) This parameter guaranteed by design. 2 OPA27, OPA37 www.ti.com SBOS135A SPECIFICATIONS At VCC = ±15V and –40°C ≤ TA ≤ +25°C, unless otherwise noted. OPA27G OPA37G PARAMETER INPUT VOLTAGE (1) Input Offset Voltage Average Drift (2) Supply Rejection CONDITIONS TA MIN to TA MAX ±VCC = 4.5 to 18V ±VCC = 4.5 to 18V MIN 90 (3) TYP MAX UNITS ±48 ±0.4 ±220(3) ±1.8 (3) µV µV/°C 122 dB BIAS CURRENT Input Bias Current ±21 ±150 (3) nA OFFSET CURRENT Input Offset Current E, F, G 20 135 (3) nA VOLTAGE RANGE Common-Mode Input Range Common-Mode Rejection OPEN-LOOP GAIN, DC Open-Loop Voltage Gain RATED OUTPUT Voltage Output Short Circuit Current VIN = ±11VDC ±10.5 (3) 96 (3) ±11.8 122 V dB RL ≥ 2kΩ 113 (3) 120 dB RL = 2kΩ VO = 0VDC ±11.0 (3) ±13.4 25 V mA TEMPERATURE RANGE Specification –40 +85 °C NOTES: (1) Offset voltage specification are measured with automatic test equipment after approximately 0.5s from power turn-on. (2) Unnulled or nulled with 8kΩ to 20kΩ potentiometer. (3) This parameter guaranteed by design. OPA27, OPA37 SBOS135A www.ti.com 3 CONNECTION DIAGRAMS Top View Offset Trim 1 8 Offset Trim –In 2 7 +VCC +In 3 6 Output –VCC 4 5 NC ABSOLUTE MAXIMUM RATINGS ELECTROSTATIC DISCHARGE SENSITIVITY Supply Voltage ................................................................................... ±22V Internal Power Dissipation (1) ....................................................... 500mW Input Voltage ..................................................................................... ±VCC Output Short-Circuit Duration (2) ................................................. Indefinite Differential Input Voltage (3) ............................................................. ±0.7V Differential Input Current (3) ........................................................... ±25mA Storage Temperature Range .......................................... –55°C to +125°C Operating Temperature Range ......................................... –40°C to +85°C Lead Temperature: P (soldering, 10s) ....................................................................... +300°C U (soldering, 3s) ......................................................................... +260°C This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. NOTES: (1) Maximum package power dissipation versus ambient temperature. (2) To common with ±VCC = 15V. (3) The inputs are protected by backto-back diodes. Current limiting resistors are not used in order to achieve low noise. If differential input voltage exceeds ±0.7V, the input current should be limited to 25mA. PACKAGE/ORDERING INFORMATION PRODUCT PACKAGE PACKAGE DRAWING(1) OPA27 OPA27 DIP-8 SO-8 P D SPECIFIED TEMPERATURE RANGE PACKAGE MARKING ORDERING NUMBER TRANSPORT MEDIA, QUANTITY –40°C to +85°C –40°C to +85°C OPA27GP OPA27U OPA27GP OPA27GU OPA27GU/2K5 Rail, 50 Rail, 100 Tape and Reel, 2500 OPA37GP OPA37GU OPA37GU/2K5 Rail, 50 Rail, 100 Tape and Reel, 2500 " " " " " OPA37 OPA37 DIP-8 SO-8 P D –40°C to +85°C –40°C to +85°C OPA37GP OPA37U " " " " " NOTE: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet. 4 OPA27, OPA37 www.ti.com SBOS135A TYPICAL PERFORMANCE CURVES At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. INPUT OFFSET VOLTAGE CHANGE DUE TO THERMAL SHOCK INPUT OFFSET VOLTAGE WARM-UP DRIFT +20 Offset Voltage Change (µV) Offset Voltage Change (µV) +10 +5 G 0 –5 +10 +25°C 0 TA = +25°C to TA = +70°C Fluid Bath +70°C –10 TO-99 –20 –10 0 1 2 3 4 5 +1 +2 +3 +4 +5 Time From Power Turn-On (min) Time From Thermal Shock (min) INPUT VOLTAGE NOISE vs NOISE BANDWIDTH (0.1Hz to Indicated Frequency) TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY vs SOURCE RESISTANCE 100 80 60 Voltage Noise (nV/√Hz) 10 Voltage Noise (µVrms) 0 –1 6 1 0.1 RS = 0 Ω R1 - 40 + 20 10 8 6 4 R1 RSOURCE = 2 x R 1 10Hz 0.01 Resistor Noise Only 1kHz 2 1 100 1k 10k 100k 100 1k 10k Noise Bandwidth (Hz) Source Resistance (Ω) VOLTAGE NOISE SPECTRAL DENSITY vs SUPPLY VOLTAGE VOLTAGE NOISE SPECTRAL DENSITY vs TEMPERATURE 5 5 4 3 Voltage Noise (nV/√Hz) Voltage Noise (nV/√Hz) 10Hz 10Hz 1kHz 2 1 4 1kHz 3 2 1 0 ±5 ±10 ±15 –75 ±20 OPA27, OPA37 SBOS135A –50 –25 0 +25 +50 +75 +100 +125 Ambient Temperature (°C) Supply Voltage (VCC ) www.ti.com 5 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. INPUT VOLTAGE NOISE SPECTRAL DENSITY 10 Current Noise Test Circuit 100kΩ 500kΩ 10kΩ en DUT 2 Voltage Noise (nV/√Hz) o 500kΩ 1 0.8 0.6 0.4 In = √(e n )2 – (130nV)2 o 1M Ω x 100 Warning: This industry-standard equation is inaccurate and these figures should be used for comparison purposes only! 0.2 8 6 4 2 0 0.1 100 1k 1 10k 10 Frequency (Hz) OPEN-LOOP FREQUENCY RESPONSE 1k BIAS AND OFFSET CURRENT vs TEMPERATURE 140 20 Absolute Bias Current (nA) 120 Voltage Gain (dB) 100 Frequency (Hz) 100 OPA37 80 OPA27 60 40 20 Bias 15 15 Offset 10 10 5 5 20 0 0 10 100 1k 10k 100k 1M 10M –75 100M 0 +25 +50 +75 0 +125 +100 Ambient Temperature (°C) OPA27 CLOSED-LOOP VOLTAGE GAIN AND PHASE SHIFT vs FREQUENCY (G = 100) OPA37 CLOSED-LOOP VOLTAGE GAIN AND PHASE SHIFT vs FREQUENCY (G = 100) 50 0 ∅ –90 20 Gain 10 –135 0 –180 –10 –225 Voltage Gain (dB) –45 30 0 40 Phase Shift (degrees) 40 Voltage Gain (dB) –25 Frequency (Hz) 50 –20 –45 30 Ø –90 20 G=5 10 –135 Gain 0 –180 –10 –225 –20 10 100 1k 10k 100k 1M 10M 100M 10 Frequency (Hz) 6 –50 Absolute Offset Current (nA) 10 100 1k 10k 100k 1M 10M 100M Frequency (Hz) OPA27, OPA37 www.ti.com SBOS135A Phase Shift (degrees) Current Noise (pA/√Hz) INPUT CURRENT NOISE SPECTRAL DENSITY 10 8 6 4 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. POWER SUPPLY REJECTION vs FREQUENCY 140 120 120 Power Supply Rejection (dB) Common-Mode Rejection (dB) COMMON-MODE REJECTION vs FREQUENCY 140 100 80 OPA37 60 OPA27 40 20 0 OPA27 100 –VCC 80 +VCC 60 40 20 0 1 10 100 1k 10k 100k 1M 10M 1 10 100 Frequency (Hz) 1k 10k 100k 1M 10M Frequency (Hz) OPEN-LOOP VOLTAGE GAIN vs TEMPERATURE OPEN-LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE 130 135 Voltage Gain (dB) Voltage Gain (dB) R L = 2k Ω 125 R L = 600 Ω 120 130 RL = 2kΩ 125 120 115 115 ±10 ±15 ±20 –75 ±25 –50 –25 0 +25 +50 +75 +100 Supply Voltage (VCC ) Ambient Temperature (°C) SUPPLY CURRENT vs SUPPLY VOLTAGE COMMON-MODE INPUT VOLTAGE RANGE vs SUPPLY VOLTAGE 6 +15 5 +10 Common-Mode Range (V) Supply Current (mA) ±5 +125°C 4 +25°C 3 –55°C 2 1 0 +125 T A = –55°C T A = +25°C +5 TA = +125°C 0 TA = –55°C TA = +25°C –5 TA = +125°C –10 –15 0 ±5 ±10 ±15 ±20 0 Supply Voltage (VCC ) ±10 ±15 ±20 Supply Voltage (VCC ) OPA27, OPA37 SBOS135A ±5 www.ti.com 7 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. OPA37 SMALL SIGNAL TRANSIENT RESPONSE +60 +40 +40 Output Voltage (mV) Output Voltage (mV) OPA27 SMALL SIGNAL TRANSIENT RESPONSE +60 +20 0 –20 A VCL = +1 C L = 15pF –40 +20 0 –20 A V = +5 C L = 25pF –40 –60 –60 0 0.5 1 1.5 2 2.5 0 0.2 0.4 0.8 1.0 1.2 OPA37 LARGE SIGNAL TRANSIENT RESPONSE +6 +15 +4 +10 Output Voltage (V) Output Voltage (V) OPA27 LARGE SIGNAL TRANSIENT RESPONSE +2 0 –2 A VCL = +1 –4 +5 0 –5 A V = +5 –10 –6 –15 0 2 4 6 8 10 0 12 Time (µs) 8 0.6 Time (µs) Time (µs) 1 2 3 4 5 6 Time (µs) OPA27, OPA37 www.ti.com SBOS135A APPLICATIONS INFORMATION OFFSET VOLTAGE ADJUSTMENT The OPA27 and OPA37 offset voltages are laser-trimmed and require no further trim for most applications. Offset voltage drift will not be degraded when the input offset is nulled with a 10kΩ trim potentiometer. Other potentiometer values from 1kΩ to 1MΩ can be used, but VOS drift will be degraded by an additional 0.1µV/°C to 0.2µV/°C. Nulling large system offsets by use of the offset trim adjust will degrade drift performance by approximately 3.3µV/°C per millivolt of offset. Large system offsets can be nulled without drift degradation by input summing. The conventional offset voltage trim circuit is shown in Figure 3. For trimming very small offsets, the higher resolution circuit shown in Figure 4 is recommended. THERMOELECTRIC POTENTIALS The OPA27 and OPA37 are laser-trimmed to microvoltlevel input offset voltages, and for very-low input offset voltage drift. Careful layout and circuit design techniques are necessary to prevent offset and drift errors from external thermoelectric potentials. Dissimilar metal junctions can generate small EMFs if care is not taken to eliminate either their sources (lead-to-PC, wiring, etc.) or their temperature difference (see Figure 11). Short, direct mounting of the OPA27 and OPA37 with close spacing of the input pins is highly recommended. Poor layout can result in circuit drifts and offsets which are an order of magnitude greater than the operational amplifier alone. The OPA27 and OPA37 can replace 741-type operational amplifiers by removing or modifying the trim circuit. 0.1µF 100kΩ 10Ω 2kΩ DUT 4.3kΩ 4.7µF 22µF OPA111 Voltage Gain Total = 50,000 2.2µF 100kΩ 0.1µF Scope x1 RIN = 1MΩ 110kΩ 24.3kΩ NOTE: All capacitor values are for nonpolarized capacitors only. FIGURE 1. 0.1Hz to 10Hz Noise Test Circuit. 0.1Hz TO 10Hz NOISE 1s/div 40nv/div FIGURE 2. Low Frequency Noise. OPA27, OPA37 SBOS135A www.ti.com 9 NOISE: BIPOLAR VERSUS FET Low-noise circuit design requires careful analysis of all noise sources. External noise sources can dominate in many cases, so consider the effect of source resistance on overall operational amplifier noise performance. At low source impedances, the lower voltage noise of a bipolar operational amplifier is superior, but at higher impedances the high current noise of a bipolar amplifier becomes a serious liability. Above about 15kΩ, the Burr-Brown OPA111 lownoise FET operational amplifier is recommended for lower total noise than the OPA27, as shown in Figure 5. +VCC (1) NOTE: (1) 10kΩ to 1MΩ Trim Potentiometer (10kΩ Recommended). 7 8 2 1 6 OPA27/37 3 4 ±4mV Typical Trim Range COMPENSATION Although internally compensated for unity-gain stability, the OPA27 may require a small capacitor in parallel with a feedback resistor (RF) which is greater than 2kΩ. This capacitor will compensate the pole generated by RF and CIN and eliminate peaking or oscillation. INPUT PROTECTION Back-to-back diodes are used for input protection on the OPA27 and OPA37. Exceeding a few hundred millivolts differential input signal will cause current to flow, and without external current limiting resistors, the input will be destroyed. Accidental static discharge, as well as high current, can damage the amplifier’s input circuit. Although the unit may still be functional, important parameters such as input offset voltage, drift, and noise may be permanently damaged, as will any precision operational amplifier subjected to this abuse. Transient conditions can cause feedthrough due to the amplifier’s finite slew rate. When using the OP-27 as a unitygain buffer (follower) a feedback resistor of 1kΩ is recommended, as shown in Figure 6. –VCC RF ≈ 1kΩ FIGURE 3. Offset Voltage Trim. +VCC – (1) Input NOTE: (1) 1kΩ Trim Potentiometer. 4.7kΩ 7 OPA27 + Output 1.9V/µs 4.7kΩ 8 2 1 OPA27/37 FIGURE 6. Pulsed Operation. 6 3 4 G ≈ 40dB at 1kHz. Metal film resistors. Film capacitors. RL and CL per cartridge manufacturer’s recommendations. 100Ω ±280µV Typical Trim Range –VCC FIGURE 4. High Resolution Offset Voltage Trim. Voltage Noise Spectral Density, EO Typical at 1kHz (nV/√Hz) 1k 0.01µF 2 3 OPA111 + Resistor Moving Magnet Cartridge RS OPA111 + Resistor 1µF 6 Output 20kΩ CL RL FIGURE 7. Low-Noise RIAA Preamplifier. Resistor Noise Only 1kΩ OPA27 + Resistor 1kΩ 1k 10k 100k 1M 10M Input 2 Source Resistance, RS (Ω) 3 EO = √en + (inRS 2 )2 + 4kTRS OPA27 6 Output FO = 1kHz FIGURE 5. Voltage Noise Spectral Density Versus Source Resistance. 10 OPA37 Resistor Noise Only 10 1 100 0.03µF 97.6kΩ OPA27 + Resistor EO 100 7.87kΩ FIGURE 8. Unity-Gain Inverting Amplifier. OPA27, OPA37 www.ti.com SBOS135A G ≈ 50dB at 1kHz. Metal film resistors. Film capacitors. RL and CL per head manufacturer’s recommendations. 1kΩ 1kΩ 4.99kΩ 0.01µF 316kΩ 2 Input 250Ω 3 OPA37 100Ω 6 Output 2 3 OPA37 1µF 6 500pF RL Output 20kΩ CL Magnetic Tape Head FIGURE 9. High Slew Rate Unity-Gain Inverting Amplifier. FIGURE 10. NAB Tape Head Preamplifier. 10kΩ Total Gain = 106 10Ω G =1k DUT Offset 10Hz LowPass Filter Chart Recorder 10mV/mm 5mm/s A. 741 noise with circuit well-shielded from air currents and RFI. (Note scale change.) 5µV B. OP-07AH with circuit well-shielded from air currents and RFI. 0.5µV C. OPA27AJ with circuit well-shielded from air currents and RFI. (Represents ultimate OPA27 performance potential.) 0.5µV D. OPA27 with circuit unshielded and exposed to normal lab bench-top air currents. (External thermoelectric potentials far exceed OPA27 noise.) 0.5µV E. OPA27 with heat sink and shield which protects input leads from air currents. Conditions same as (D). 0.5µV FIGURE 11. Low Frequency Noise Comparison. OPA27, OPA37 SBOS135A www.ti.com 11 3 –In 2 Gain = 100 OPA37 6 For Gain = 1000, use INA106 differential amplifier. Bandwidth ≈ 500kHz Burr-Brown INA105 Differential Amplifier RF 5kΩ RG 101Ω 25kΩ 2 25kΩ Input Stage Gain = 1 + 2RF /RG RF 5kΩ 6 25kΩ 3 Output 2 3 +In 5 OPA37 25kΩ 6 1 FIGURE 12. Low Noise Instrumentation Amplifier. 0.1µF 1kΩ 100Ω 100kΩ 200Ω 2 500pF 3 OPA37 6 0.1µF 2 Output 3 OPA27 6 Output 2kΩ 1MΩ EDO 6166 Transducer Dexter 1M Thermopile Detector Frequency Response ≈ 1kHz to 50kHz NOTE: Use metal film resistors and plastic film capacitor. Circuit must be well shielded to achieve low noise. Responsivity ≈ 2.5 x 104V/W Output Noise ≈ 30µVrms, 0.1Hz to 10Hz FIGURE 13. Hydrophone Preamplifier. FIGURE 14. Long-Wavelength Infrared Detector Amplifier. 20pF TTL INPUT GAIN “1” “0” +1 –1 9.76kΩ 500Ω 10kΩ Input D1 D2 2 4.99kΩ S1 S2 3 6 OPA27 Output 8 1 4.75kΩ TTL In Balance Trim 4.75kΩ 1kΩ DG188 Offset Trim +VCC FIGURE 15. High Performance Synchronous Demodulator. 12 OPA27, OPA37 www.ti.com SBOS135A Gain = –1010V/V Full Power Bandwidth ≈ 180kHz Gain Bandwidth ≈ 500MHz Equivalent Noise Resistance ≈ 50Ω Input 20Ω 2kΩ 2 3 OPA37 20Ω 6 2kΩ 6 2kΩ Signal-to-Noise Ratio ∝ √N since amplifier noise is uncorrelated. 2kΩ 2 3 OPA37 20Ω 2kΩ 2kΩ 2 3 OPA37 20Ω 6 2kΩ 6 3 2kΩ OPA37 Output 2 3 2 6 2kΩ 6 2kΩ OPA37 20Ω 2kΩ 2 3 OPA37 N = 10 Each OPA37EZ FIGURE 16. Ultra-Low Noise “N”-Stage Parallel Amplifier. OPA27, OPA37 SBOS135A www.ti.com 13 5V 5V +10V Output Output +10V 0V 0V –10V –10V 5µs 5µs RS = 50Ω RS = 50Ω 1kΩ 1kΩ 2 2 Input 3 6 OPA27 3 250Ω Output OPA37 6 Output 500pF Input FIGURE 18. High Slew Rate Unity-Gain Buffer. FIGURE 17. Unity-Gain Buffer. +15V 200Ω 10µF/20V 20kΩ 100Ω 10kΩ + VIRTEC V1000 50Ω Planar Tunnel Input 0.01µF Diode RFC 1 2 3 200Ω OPA37 6 2 Video Output 100µF/20V Tantalum 2 3 OPA27 6 Output + 10kΩ 500pF Siemens LHI 948 FIGURE 19. RF Detector and Video Amplifier. 10kΩ 3 FIGURE 20. Balanced Pyroelectric Infrared Detector. 4.8V + 1kΩ Airpax Magnetic Pickup 2 3 OPA27 6 0 Output – fOUT ∝ RPM X N Where N = Number of Gear Teeth FIGURE 21. Magnetic Tachometer. 14 OPA27, OPA37 www.ti.com SBOS135A PACKAGE OPTION ADDENDUM www.ti.com 19-Jan-2004 PACKAGING INFORMATION ORDERABLE DEVICE STATUS(1) PACKAGE TYPE PACKAGE DRAWING PINS PACKAGE QTY OPA27GP ACTIVE PDIP P 8 50 OPA27GU ACTIVE SOIC D 8 100 OPA27GU/2K5 ACTIVE SOIC D 8 2500 OPA37GP ACTIVE PDIP P 8 50 OPA37GU ACTIVE SOIC D 8 100 OPA37GU/2K5 ACTIVE SOIC D 8 2500 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. MECHANICAL DATA MPDI001A – JANUARY 1995 – REVISED JUNE 1999 P (R-PDIP-T8) PLASTIC DUAL-IN-LINE 0.400 (10,60) 0.355 (9,02) 8 5 0.260 (6,60) 0.240 (6,10) 1 4 0.070 (1,78) MAX 0.325 (8,26) 0.300 (7,62) 0.020 (0,51) MIN 0.015 (0,38) Gage Plane 0.200 (5,08) MAX Seating Plane 0.010 (0,25) NOM 0.125 (3,18) MIN 0.100 (2,54) 0.021 (0,53) 0.015 (0,38) 0.430 (10,92) MAX 0.010 (0,25) M 4040082/D 05/98 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Falls within JEDEC MS-001 For the latest package information, go to http://www.ti.com/sc/docs/package/pkg_info.htm POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MECHANICAL DATA MSOI002B – JANUARY 1995 – REVISED SEPTEMBER 2001 D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 8 PINS SHOWN 0.020 (0,51) 0.014 (0,35) 0.050 (1,27) 8 0.010 (0,25) 5 0.008 (0,20) NOM 0.244 (6,20) 0.228 (5,80) 0.157 (4,00) 0.150 (3,81) Gage Plane 1 4 0.010 (0,25) 0°– 8° A 0.044 (1,12) 0.016 (0,40) Seating Plane 0.010 (0,25) 0.004 (0,10) 0.069 (1,75) MAX PINS ** 0.004 (0,10) 8 14 16 A MAX 0.197 (5,00) 0.344 (8,75) 0.394 (10,00) A MIN 0.189 (4,80) 0.337 (8,55) 0.386 (9,80) DIM 4040047/E 09/01 NOTES: A. B. C. D. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15). Falls within JEDEC MS-012 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. 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