OP27FP

a Low-Noise, Precision Operational Amplifier OP27 PIN CONNECTIONS FEATURES Low Noise: 80 nV p-p (0.1 Hz to 10 Hz), 3 nV/÷Hz Low Drift: 0.2
V/C High Speed: 2.8 V/
s Slew Rate, 8 MHz Gain Bandwidth Low VOS: 10
V Excellent CMRR: 126 dB at VCM of ±11 V High Open-Loop Gain: 1.8 Million Fits 725, OP07, 5534A Sockets Available in Die Form TO-99 (J-Suffix) BAL BAL 1 OP27 V+ OUT –IN 2 NC +IN 3 GENERAL DESCRIPTION 4V– (CASE) NC = NO CONNECT The OP27 precision operational amplifier combines the low offset and drift of the OP07 with both high speed and low noise. Offsets down to 25 mV and maximum drift of 0.6 mV/∞C, makes the OP27 ideal for precision instrumentation applications. Exceptionally low noise, en = 3.5 nV/÷Hz, at 10 Hz, a low 1/f noise corner frequency of 2.7 Hz, and high gain (1.8 million), allow accurate high-gain amplification of low-level signals. A gain-bandwidth product of 8 MHz and a 2.8 V/msec slew rate provides excellent dynamic accuracy in high-speed, dataacquisition systems. 8-Pin Hermetic DIP (Z-Suffix) Epoxy Mini-DIP (P-Suffix) 8-Pin SO (S-Suffix) A low input bias current of ± 10 nA is achieved by use of a bias-current-cancellation circuit. Over the military temperature range, this circuit typically holds IB and IOS to ±20 nA and 15 nA, respectively. VOS TRIM 1 The output stage has good load driving capability. A guaranteed swing of ± 10 V into 600 W and low output distortion make the OP27 an excellent choice for professional audio applications. 8 VOS TRIM –IN 2 7 V+ +IN 3 6 OUT V– 4 5 NC OP27 NC = NO CONNECT (Continued on page 7) SIMPLIFIED SCHEMATIC V+ R3 Q6 R1* 1 8 VOS ADJ. C2 R4 Q22 R2* R23 Q21 Q24 Q23 Q46 C1 R24 R9 Q20 Q1A Q1B Q2B Q19 OUTPUT R12 Q2A NONINVERTING INPUT (+) C3 R5 C4 Q3 INVERTING INPUT (–) Q11 Q26 Q12 Q27 Q45 Q28 *R1 AND R2 ARE PERMANENTLY ADJUSTED AT WAFER TEST FOR MINIMUM OFFSET VOLTAGE. V– REV. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. OP27–SPECIFICATIONS ELECTRICAL CHARACTERISTICS (@ V = ±15 V, T = 25C, unless otherwise noted.) S Conditions A Min OP27A/E Typ Max Min OP27F Typ Max Min OP27C/G Typ Max Parameter Symbol Unit INPUT OFFSET VOLTAGE1 VOS 10 25 20 60 30 100 mV LONG-TERM VOS STABILITY2, 3 VOS/Time 0.2 1.0 0.3 1.5 0.4 2.0 mV/MO INPUT OFFSET CURRENT IOS 7 35 9 50 12 75 nA INPUT BIAS CURRENT IB ± 10 ± 40 ± 12 ± 55 ± 15 ± 80 nA INPUT NOISE VOLTAGE3, 4 en p-p 0.1 Hz to 10 Hz 0.08 0.18 0.08 0.18 0.09 0.25 mV p-p INPUT NOISE Voltage Density3 en fO = 10 Hz fO = 30 Hz fO = 1000 Hz 3.5 3.1 3.0 5.5 4.5 3.8 3.5 3.1 3.0 5.5 4.5 3.8 3.8 3.3 3.2 8.0 5.6 4.5 nV/÷Hz nV/÷Hz nV/÷Hz INPUT NOISE Current Density3, 5 in fO = 10 Hz fO = 30 Hz fO = 1000 Hz 1.7 1.0 0.4 4.0 2.3 0.6 1.7 1.0 0.4 4.0 2.3 0.6 1.7 1.0 0.4 0.6 pA/÷Hz pA/÷Hz pA/÷Hz INPUT RESISTANCE Differential-Mode6 Common-Mode RIN RINCM 1.3 INPUT VOLTAGE RANGE IVR ± 11.0 ± 12.3 ± 11.0 ± 12.3 ± 11.0 ± 12.3 V 114 106 100 dB COMMON-MODE REJECTION RATIO CMRR VCM = ± 11 V POWER SUPPLY PSRR REJECTION RATIO VS = ± 4 V to ± 18 V LARGE-SIGNAL VOLTAGE GAIN RL ≥ 2 kW, VO = ± 10 V RL ≥ 600 W, VO = ± 10 V AVO 6 3 0.94 126 1 10 5 2.5 0.7 123 1 10 4 2 MW GW 120 2 20 mV/V 1000 1800 1000 1800 700 1500 V/mV 800 1500 800 1500 600 1500 V/mV OUTPUT VOLTAGE SWING VO RL ≥ 2 kW RL ≥ 600 W ± 12.0 ± 13.8 ± 10.0 ± 11.5 ± 12.0 ± 13.8 ± 10.0 ± 11.5 ± 11.5 ± 13.5 ± 10.0 ± 11.5 V V SLEW RATE7 SR RL ≥ 2 kW 1.7 2.8 1.7 2.8 1.7 2.8 V/ms GAIN BANDWIDTH PRODUCT7 GBW 5.0 8.0 5.0 8.0 5.0 8.0 MHz OPEN-LOOP OUTPUT RESISTANCE RO VO = 0, IO = 0 70 70 W POWER CONSUMPTION Pd VO 90 RP = 10 kW ± 4.0 OFFSET ADJUSTMENT RANGE 70 140 90 ± 4.0 140 100 ± 4.0 170 mW mV NOTES 1 Input offset voltage measurements are performed ~ 0.5 seconds after application of power. A/E grades guaranteed fully warmed up. 2 Long-term input offset voltage stability refers to the average trend line of V OS versus. Time over extended periods after the first 30 days of operation. Excluding the initial hour of operation, changes in V OS during the first 30 days are typically 2.5 mV. Refer to typical performance curve. 3 Sample tested. 4 See test circuit and frequency response curve for 0.1 Hz to 10 Hz tester. 5 See test circuit for current noise measurement. 6 Guaranteed by input bias current. 7 Guaranteed by design. –2– REV. C OP27 ELECTRICAL CHARACTERISTICS (@ VS = ±15 V, –55C £ TA £ 125C, unless otherwise noted.) Symbol INPUT OFFSET VOLTAGE1 VOS 30 60 TCVOS2 TCVOSn3 0.2 INPUT OFFSET CURRENT IOS INPUT BIAS CURRENT IB INPUT VOLTAGE RANGE IVR AVERAGE INPUT OFFSET DRIFT Conditions Min OP27A Typ Parameter Max Min OP27C Typ Max Unit 70 300 mV 0.6 4 1.8 mV/∞C 15 50 30 135 nA ± 20 ± 60 ± 35 ± 150 nA ± 10.3 ± 11.5 ± 10.2 ± 11.5 V 108 122 94 118 dB COMMON-MODE REJECTION RATIO CMRR VCM = ± 10 V POWER SUPPLY REJECTION RATIO PSRR VS = ± 4.5 V to ± 18 V 2 LARGE-SIGNAL VOLTAGE GAIN AVO RL ≥ 2 kW, VO = ± 10 V 600 1200 300 800 V/mV OUTPUT VOLTAGE SWING VO RL ≥ 2 kW ± 13.5 ± 10.5 ± 13.0 V ± 11.5 16 4 51 mV/V NOTES 1 Input offset voltage measurements are performed by automated test equipment approximately 0.5 seconds after application of power. A/E grades guaranteed fully warmed up. 2 The TCVOS performance is within the specifications unnulled or when nulled with R P = 8 kW to 20 kW. TCVOS is 100% tested for A/E grades, sample tested for C/F/G grades. 3 Guaranteed by design. REV. C –3– OP27 ELECTRICAL CHARACTERISTICS (@ VS = ±15 V, –25C¯£ TA £ 85C for OP27J, OP27Z, 0C £ TA £ 70C for OP27EP, OP27FP, and –40C £ TA £ 85C for OP27GP, OP27GS, unless otherwise noted.) VOS 20 50 40 140 55 220 mV TCVOS1 TCVOSn2 0.2 0.2 0.6 0.6 0.3 0.3 1.3 1.3 04 04 1.8 1.8 mV/∞C mV/∞C INPUT OFFSET CURRENT IOS 10 50 14 85 20 135 nA INPUT BIAS CURRENT IB ± 14 ± 60 ± 18 ± 95 ± 25 ± 150 nA INPUT VOLTAGE RANGE IVR POWER SUPPLY REJECTION RATIO PSRR LARGE-SIGNAL VOLTAGE GAIN OUTPUT VOLTAGE SWING AVO VO VCM = ± 10 V Max Min Min OP27G Typ Max INPUT ONSET VOLTAGE COMMON-MODE REJECTION RATIO CMRR Min OP27F Typ Max Symbol AVERAGE INPUT OFFSET DRIFT Conditions OP27E Typ Parameter Unit ± 10.5 ± 11.8 ± 10.5 ± 11.8 ± 10.5 ± 11.8 V 110 124 102 96 dB VS = ± 4.5 V to ± 18 V 2 15 121 2 RL ≥ 2 kW, VO = ± 10 V 750 1500 700 RL ≥ 2 kW ± 11.7 ± 13.6 ± 11.4 ± 13.5 1300 16 118 2 450 1000 ± 11.0 ± 13.3 32 mV/V V/mV V NOTES 1 The TCVOS performance is within the specifications unnulled or when nulled with R P = 8 kW to 20 kW. TCVOS is 100% tested for A/E grades, sample tested for C/F/G grades. 2 Guaranteed by design. –4– REV. C OP27 DIE CHARACTERISTICS 1. 2. 3. 4. 6. 7. 8. 1 1990 1427U 8 NULL (–) INPUT (+) INPUT V– OUTPUT V+ NULL 2 3 7 6 4 WAFER TEST LIMITS (@ VS = ±15 V, TA = 25C unless otherwise noted.) OP27N Limit OP27G Limit OP27GR Limit Unit VOS 35 60 100 mV Max INPUT OFFSET CURRENT IOS 35 50 75 nA Max INPUT BIAS CURRENT IB ± 40 ± 55 ± 80 nA Max INPUT VOLTAGE RANGE IVR ± 11 ± 11 ± 11 V Min COMMON-MODE REJECTION RATIO CMRR VCM = IVR 114 106 100 dB Min POWER SUPPLY PSRR VS = ± 4 V to ± 18 V 10 10 20 mV/V Max AVO AVO RL ≥ 2 kW, VO = ± 10 V RL ≥ 600 W, VO = ± 10 V 1000 800 1000 800 700 600 V/mV Min V/mV Min OUTPUT VOLTAGE SWING VO VO RL ≥ 2 kW RL2600n ± 12.0 ± 10.0 ± 12.0 ± 10.0 +11.5 ± 10.0 V Min V Min POWER CONSUMPTION Pd VO = 0 140 140 170 mW Max Parameter Symbol INPUT OFFSET VOLTAGE* LARGE-SIGNAL VOLTAGE GAIN Conditions NOTE *Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing. REV. C –5– OP27 TYPICAL ELECTRICAL CHARACTERISTICS (@ V = ±15 V, T = 25C unless otherwise noted.) S Parameter AVERAGE INPUT OFFSET VOLTAGE DRIFT* Symbol Conditions TCVOS or TCVOSn Nulled or Unnulled RP = 8 kW to 20 kW A OP27N Typical OP27G Typical OP27GR Typical Unit 0.2 0.3 0.4 mV/∞C AVERAGE INPUT OFFSET CURRENT DRIFT TCIOS 80 130 180 pA/∞C AVERAGE INPUT BIAS CURRENT DRIFT TCIB 100 160 200 pA/∞C INPUT NOISE VOLTAGE DENSITY en en en fO = 10 Hz fO = 30 Hz fO = 1000 Hz 3.5 3.1 3.0 3.5 3.1 3.0 3.8 3.3 3.2 nV/÷Hz nV/÷Hz nV/÷Hz in in in fO = 10 Hz fO = 30 Hz fO = 1000 Hz 1.7 1.0 0.4 1.7 1.0 0.4 1.7 1.0 0.4 pA/÷Hz pA/÷Hz pA/÷Hz INPUT NOISE VOLTAGE SLEW RATE enp-p SR 0.1 Hz to 10 Hz RL ≥ 2 kW 0.08 2.8 0.08 2.8 0.09 2.8 mV p-p V/ms GAIN BANDWIDTH PRODUCT GBW 8 8 8 MHz INPUT NOISE CURRENT DENSITY NOTE *Input offset voltage measurements are performed by automated test equipment approximately 0.5 seconds after application of power. –6– REV. C OP27 (Continued from page 1) The OP27 provides excellent performance in low-noise, highaccuracy amplification of low-level signals. Applications include stable integrators, precision summing amplifiers, precision voltagethreshold detectors, comparators, and professional audio circuits such as tape-head and microphone preamplifiers. PSRR and CMRR exceed 120 dB. These characteristics, coupled with long-term drift of 0.2 mV/month, allow the circuit designer to achieve performance levels previously attained only by discrete designs. The OP27 is a direct replacement for 725, OP06, OP07, and OP45 amplifiers; 741 types may be directly replaced by removing the 741’s nulling potentiometer. Low-cost, high-volume production of OP27 is achieved by using an on-chip Zener zap-trimming network. This reliable and stable offset trimming scheme has proved its effectiveness over many years of production history. ABSOLUTE MAXIMUM RATINGS 4 Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 22 V Input Voltage1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 22 V Output Short-Circuit Duration . . . . . . . . . . . . . . . . Indefinite Differential Input Voltage2 . . . . . . . . . . . . . . . . . . . . . . ± 0.7 V Differential Input Current2 . . . . . . . . . . . . . . . . . . . . ± 25 mA Storage Temperature Range . . . . . . . . . . . . –65∞C to +150∞C Operating Temperature Range OP27A, OP27C (J, Z) . . . . . . . . . . . . . . . . –55∞C to +125∞C OP27E, OP27F (J, Z) . . . . . . . . . . . . . . . . . –25∞C to +85∞C OP27E, OP27F (P) . . . . . . . . . . . . . . . . . . . . . . 0∞C to 70∞C OP27G (P, S, J, Z) . . . . . . . . . . . . . . . . . . –40∞C to +85∞C Lead Temperature Range (Soldering, 60 sec) . . . . . . . 300∞C Junction Temperature . . . . . . . . . . . . . . . . . –65∞C to +150∞C Package Type JA3 JC Unit TO 99 (J) 8-Lead Hermetic DlP (Z) 8-Lead Plastic DIP (P) 20-Contact LCC (RC) 8-Lead SO (S) 150 148 103 98 158 18 16 43 38 43 ∞C/W ∞C/W ∞C/W ∞C/W ∞C/W NOTES 1 For supply voltages less than ± 22 V, the absolute maximum input voltage is equal to the supply voltage. 2 The OP27’s 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 ± 0.7 V, the input current should be limited to 25 mA. 3 ␪JA is specified for worst-case mounting conditions, i.e., ␪JA is specified for device in socket for TO, CERDIP, and P-DIP packages; ␪JA is specified for device soldered to printed circuit board for SO package. 4 Absolute Maximum Ratings apply to both DICE and packaged parts, unless otherwise noted. ORDERING INFORMATION 1 Package TA = 25∞C VOS Max (mV) 25 25 60 100 100 100 TO-99 CERDIP 8-Lead OP27AJ2, 3 OP27EJ2, 3 OP27AZ2 OP27EZ OP27GJ OP27CZ3 OP27GZ Plastic 8-Lead OP27EP OP27FP3 OP27GP OP27GS4 Operating Temperature Range MIL IND/COM IND/COM MIL XIND XIND NOTES 1 Burn-in is available on commercial and industrial temperature range parts in CERDIP, plastic DIP, and TO-can packages. 2 For devices processed in total compliance to MIL-STD-883, add /883 after part number. Consult factory for 883 data sheet. 3 Not for new design; obsolete April 2002. 4 For availability and burn-in information on SO and PLCC packages, contact your local sales office. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the OP27 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. C –7– WARNING! ESD SENSITIVE DEVICE OP27–Typical Performance Characteristics VOLTAGE NOISE – nV/ Hz 90 70 60 50 TEST TIME OF 10sec FURTHER LIMITS LOW FREQUENCY (1 V), the output waveform will look as shown in the pulsed operation diagram (Figure 3). During the fast feedthrough-like portion of the output, the input protection diodes effectively short the output to the input and a current, limited only by the output short-circuit protection, will be drawn by the signal generator. With Rf ≥ 500 W, the output is capable of handling the current requirements (IL £ 20 mA at 10 V); the amplifier will stay in its active mode and a smooth transition will occur. When Rf > 2 kW, a pole will be created with Rf and the amplifier’s input capacitance (8 pF) that creates additional phase shift and reduces phase margin. A small capacitor (20 pF to 50 pF) in parallel with R f will eliminate this problem. Rf – OP27 2.8V/
s + Figure 3. Pulsed Operation COMMENTS ON NOISE The OP27 is a very low-noise monolithic op amp. The outstanding input voltage noise characteristics of the OP27 are achieved mainly by operating the input stage at a high quiescent current. The input OP08/108 2 OP07 10 5 1 RS e.g. RS 2 RS e.g. RS 5534 OP27/37 1 50 RS1 REGISTER NOISE ONLY 100 UNMATCHED = R S1 = 10k, R S2 = 0 MATCHED = 10k, R S1 = R S2 = 5k RS2 10k 500 1k 5k RS – SOURCE RESISTANCE –  50k Figure 4. Noise vs. Source Resistance (Including Resistor Noise) at 1000 Hz At RS