OPA 27 OPA 27 OPA27 OPA37 SBOS135B – JANUARY 1984 – REVISED FEBRUARY 2005 Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS DESCRIPTION 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 ● ● ● ● ● ● 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 long-term 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 Texas Instrument 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 © 1984-2005, 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 ABSOLUTE MAXIMUM RATINGS(1) Supply Voltage ................................................................................... ±22V Internal Power Dissipation (2) ....................................................... 500mW Input Voltage ..................................................................................... ±VCC Output Short-Circuit Duration (3) ................................................. Indefinite Differential Input Voltage (4) ............................................................. ±0.7V Differential Input Current (4) ........................................................... ±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 NOTES: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. (2) Maximum package power dissipation versus ambient temperature. (2) To common with ±VCC = 15V. (4) The inputs are protected by back-to-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. ELECTROSTATIC DISCHARGE SENSITIVITY 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. PIN CONFIGURATION Top View PACKAGE/ORDERING INFORMATION(1) PRODUCT PACKAGE-LEAD θJA PACKAGE DRAWING PACKAGE MARKING OPA27 OPA27 DIP-8 SO-8 100°C/W 160°C/W P D OPA27GP OPA27U OPA37 OPA37 DIP-8 SO-8 100°C/W 160°C/W P D OPA37GP OPA37U NOTE: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this document, or see the TI website at www.ti.com. 2 Offset Trim 1 8 Offset Trim –In 2 7 +VCC +In 3 6 Output –VCC 4 5 NC NC = No Connection OPA27, OPA37 www.ti.com SBOS135B ELECTRICAL CHARACTERISTICS At VCC = ±15V and TA = +25°C, unless otherwise noted. OPA27 OPA37 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 µVPP 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 specified by design. OPA27, OPA37 SBOS135B www.ti.com 3 ELECTRICAL CHARACTERISTICS At VCC = ±15V and –40°C ≤ TA ≤ +85°C, unless otherwise noted. OPA27 OPA37 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 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 specified by design. 4 OPA27, OPA37 www.ti.com SBOS135B TYPICAL PERFORMANCE CURVES At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. INPUT VOLTAGE NOISE vs NOISE BANDWIDTH (0.1Hz to Indicated Frequency) INPUT OFFSET VOLTAGE WARM-UP DRIFT Offset Voltage Change (µV) +10 10 Voltage Noise (µVrms) +5 0 –5 1 0.1 RS = 0 Ω –10 0.01 1 0 3 4 5 100 6 VOLTAGE NOISE SPECTRAL DENSITY vs SUPPLY VOLTAGE 5 R1 Voltage Noise (nV/√Hz) - 20 R1 RSOURCE = 2 x R 1 10Hz Resistor Noise Only 1kHz 2 10Hz 4 3 1kHz 2 1 1 100 1k 0 10k Source Resistance (Ω) ±5 ±10 ±15 ±20 Supply Voltage (VCC ) VOLTAGE NOISE SPECTRAL DENSITY vs TEMPERATURE INPUT CURRENT NOISE SPECTRAL DENSITY 5 Current Noise (pA/√Hz) 10Hz Voltage Noise (nV/√Hz) 100k TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY vs SOURCE RESISTANCE + 4 10k Noise Bandwidth (Hz) 40 10 8 6 1k Time From Power Turn-On (min) 100 80 60 Voltage Noise (nV/√Hz) 2 4 3 1kHz 2 10 8 6 4 Current Noise Test Circuit 100kΩ en DUT 2 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 1 500kΩ 10kΩ 0.1 –75 –50 –25 0 +25 +50 +75 +100 +125 10 Ambient Temperature (°C) 1k 10k Frequency (Hz) OPA27, OPA37 SBOS135B 100 www.ti.com 5 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. INPUT VOLTAGE NOISE SPECTRAL DENSITY OPEN-LOOP FREQUENCY RESPONSE 140 120 8 Voltage Gain (dB) Voltage Noise (nV/√Hz) 10 6 4 100 OPA37 80 OPA27 60 40 2 20 0 0 10 100 1k 1k 1M 10M 15 Offset 10 10 5 5 –50 –25 0 +25 +50 +75 Voltage Gain (dB) 15 –45 30 ∅ –90 20 Gain 10 –135 0 –180 –10 –225 –20 0 +125 +100 0 40 Absolute Offset Current (nA) Bias 100M 50 10 100 1k Ambient Temperature (°C) 10k 100k 1M 10M 100M Frequency (Hz) OPA37 CLOSED-LOOP VOLTAGE GAIN AND PHASE SHIFT vs FREQUENCY (G = 100) COMMON-MODE REJECTION vs FREQUENCY 50 –45 30 Ø –90 20 G=5 10 Gain –135 0 –180 –10 –225 Phase Shift (degrees) 0 Common-Mode Rejection (dB) 140 40 Voltage Gain (dB) 100k OPA27 CLOSED-LOOP VOLTAGE GAIN AND PHASE SHIFT vs FREQUENCY (G = 100) 0 –20 120 100 80 OPA37 60 OPA27 40 20 0 10 100 1k 10k 100k 1M 10M 100M 1 10 100 1k 10k 100k 1M 10M Frequency (Hz) Frequency (Hz) 6 10k BIAS AND OFFSET CURRENT vs TEMPERATURE 20 –75 100 Frequency (Hz) 20 Absolute Bias Current (nA) 10 Frequency (Hz) OPA27, OPA37 www.ti.com SBOS135B Phase Shift (degrees) 1 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. POWER SUPPLY REJECTION vs FREQUENCY OPEN-LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE 130 OPA27 120 R L = 2k Ω 100 Voltage Gain (dB) Power Supply Rejection (dB) 140 –VCC 80 +VCC 60 40 125 R L = 600 Ω 120 20 0 115 1 10 100 1k 10k 100k 1M ±5 10M ±10 Frequency (Hz) ±15 ±20 ±25 Supply Voltage (VCC ) OPEN-LOOP VOLTAGE GAIN vs TEMPERATURE SUPPLY CURRENT vs SUPPLY VOLTAGE 6 135 Supply Current (mA) Voltage Gain (dB) 5 130 RL = 2kΩ 125 120 +125°C 4 +25°C 3 –55°C 2 1 0 115 –75 –50 –25 0 +25 +50 +75 +100 +125 0 ±5 Ambient Temperature (°C) COMMON-MODE INPUT VOLTAGE RANGE vs SUPPLY VOLTAGE ±15 ±20 OPA27 SMALL SIGNAL TRANSIENT RESPONSE +15 +60 +10 +40 T A = –55°C T A = +25°C +5 TA = +125°C 0 TA = –55°C TA = +25°C –5 TA = +125°C Output Voltage (mV) Common-Mode Range (V) ±10 Supply Voltage (VCC ) –10 +20 0 –20 A VCL = +1 C L = 15pF –40 –15 –60 0 ±5 ±10 ±15 ±20 0 Supply Voltage (VCC ) 1 1.5 2 2.5 Time (µs) OPA27, OPA37 SBOS135B 0.5 www.ti.com 7 TYPICAL PERFORMANCE CURVES (Cont.) At TA = +25°C, ±VCC = ±15VDC, unless otherwise noted. OPA27 LARGE SIGNAL TRANSIENT RESPONSE +6 +40 +4 Output Voltage (V) Output Voltage (mV) OPA37 SMALL SIGNAL TRANSIENT RESPONSE +60 +20 0 –20 A V = +5 C L = 25pF –40 +2 0 –2 A VCL = +1 –4 –60 –6 0 0.2 0.4 0.6 0.8 1.0 1.2 0 2 Time (µs) 4 6 8 10 12 Time (µs) OPA37 LARGE SIGNAL TRANSIENT RESPONSE +15 Output Voltage (V) +10 +5 0 –5 A V = +5 –10 –15 0 1 2 3 4 5 6 Time (µs) 8 OPA27, OPA37 www.ti.com SBOS135B APPLICATIONS INFORMATION THERMOELECTRIC POTENTIALS OFFSET VOLTAGE ADJUSTMENT The OPA27 and OPA37 are laser-trimmed to microvolt-level input offset voltages, and for very-low input offset voltage drift. 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. 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 SBOS135B www.ti.com 9 NOISE: BIPOLAR VERSUS FET COMPENSATION 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 OPA111 low-noise FET operational amplifier is recommended for lower total noise than the OPA27, as shown in Figure 5. 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. +VCC (1) 8 1 Transient conditions can cause feedthrough due to the amplifier’s finite slew rate. When using the OPA27 as a unity-gain buffer (follower) a feedback resistor of 1kΩ is recommended, as shown in Figure 6. 6 OPA27/37 3 4 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. NOTE: (1) 10kΩ to 1MΩ Trim Potentiometer (10kΩ Recommended). 7 2 INPUT PROTECTION ±4mV Typical Trim Range –VCC RF ≈ 1kΩ FIGURE 3. Offset Voltage Trim. +VCC – (1) NOTE: (1) 1kΩ Trim Potentiometer. 4.7kΩ 7 Input + OPA27 Output 1.9V/µs 4.7kΩ 8 2 1 OPA27/37 FIGURE 6. Pulsed Operation. 6 3 G ≈ 40dB at 1kHz. Metal film resistors. Film capacitors. RL and CL per cartridge manufacturer’s recommendations. 100Ω ±280µV Typical Trim Range 4 –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 6 1µF Output 20kΩ CL RL FIGURE 7. Low-Noise RIAA Preamplifier. Resistor Noise Only 1kΩ OPA27 + Resistor 1k 10k 100k 1M 1kΩ 10M Input 2 Source Resistance, RS (Ω) 3 EO = √en2 + (inRS)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 SBOS135B G ≈ 50dB at 1kHz. Metal film resistors. Film capacitors. RL and CL per head manufacturer’s recommendations. 1kΩ 1kΩ 2 Input 250Ω 3 100Ω OPA37 6 4.99kΩ 316kΩ 2 Output 3 500pF RL 0.01µF OPA37 6 1µF 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 SBOS135B www.ti.com 11 3 –In 2 Gain = 100 OPA37 6 For Gain = 1000, use INA106 differential amplifier. Bandwidth ≈ 500kHz 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 2kΩ OPA27 6 Output 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 SBOS135B Gain = –1010V/V VOS ≈ 2µV Drift ≈ 0.07µV/°C en ≈ 1nV/√Hz at 10Hz 0.9nV/√Hz at 100Hz 0.87nV/√Hz at 1kHz Full Power Bandwidth ≈ 180kHz Gain Bandwidth ≈ 500MHz Equivalent Noise Resistance ≈ 50Ω Input 20Ω 2kΩ Signal-to-Noise Ratio ∝ √N since amplifier noise is uncorrelated. 2 3 20Ω OPA37 6 2kΩ 6 2kΩ 2kΩ 2 3 20Ω OPA37 2kΩ 2kΩ 2 2 3 20Ω 6 OPA37 2kΩ 6 3 OPA37 Output 2kΩ 2 3 20Ω 6 2kΩ 6 2kΩ OPA37 2kΩ 2 3 OPA37 N = 10 Each OPA37 FIGURE 16. Ultra-Low Noise “N”-Stage Parallel Amplifier. OPA27, OPA37 SBOS135B 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 6 OPA37 Output Output 500pF Input FIGURE 18. High Slew Rate Unity-Gain Buffer. FIGURE 17. Unity-Gain Buffer. +15V 200Ω 20kΩ 10µF/20V 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 + 10kΩ 500pF Siemens LHI 948 FIGURE 19. RF Detector and Video Amplifier. 6 Output 10kΩ 3 FIGURE 20. Balanced Pyroelectric Infrared Detector. 4.8V + 1kΩ Airpax Magnetic Pickup 2 3 OPA27 6 0 Output – fOUT ∝ RPM • N Where N = Number of Gear Teeth FIGURE 21. Magnetic Tachometer. 14 OPA27, OPA37 www.ti.com SBOS135B PACKAGE OPTION ADDENDUM www.ti.com 8-Mar-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty Lead/Ball Finish MSL Peak Temp (3) OPA27GP ACTIVE PDIP P 8 50 None Call TI OPA27GU ACTIVE SOIC D 8 100 None CU NIPDAU Level-NA-NA-NA Level-2-220C-1 YEAR OPA27GU/2K5 ACTIVE SOIC D 8 2500 None CU NIPDAU Level-2-220C-1 YEAR OPA37GP ACTIVE PDIP P 8 50 None Call TI OPA37GU ACTIVE SOIC D 8 100 None CU SNPB Level-2-220C-1 YEAR OPA37GU/2K5 ACTIVE SOIC D 8 2500 None CU SNPB Level-2-220C-1 YEAR Level-NA-NA-NA (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. (2) Eco Plan - May not be currently available - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. None: Not yet available Lead (Pb-Free). Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight. (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1 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 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. 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