a FEATURES High CMRR: 100 dB Typ Low Nonlinearity: 0.001% Max Low Distortion: 0.001% Typ Wide Bandwidth: 3 MHz Typ Fast Slew Rate: 9.5 V/ms Typ Fast Settling (0.01%): 1 ms Typ Low Cost APPLICATIONS Summing Amplifiers Instrumentation Amplifiers Balanced Line Receivers Current-Voltage Conversion Absolute Value Amplifier 4 mA–20 mA Current Transmitter Precision Voltage Reference Applications Lower Cost and Higher Speed Version of INA105 Precision, Unity-Gain Differential Amplifier AMP03 FUNCTIONAL BLOCK DIAGRAM AMP03 25kV 25kV –IN 2 SENSE 7 +VCC 6 OUTPUT 4 –VEE 1 REFERENCE 25kV 25kV +IN 5 3 PIN CONNECTIONS 8-Lead Plastic DIP (P Suffix) GENERAL DESCRIPTION The AMP03 is a monolithic unity-gain, high speed differential amplifier. Incorporating a matched thin-film resistor network, the AMP03 features stable operation over temperature without requiring expensive external matched components. The AMP03 is a basic analog building block for differential amplifier and instrumentation applications. The differential amplifier topology of the AMP03 serves to both amplify the difference between two signals and provide extremely high rejection of the common-mode input voltage. By providing common-mode rejection (CMR) of 100 dB typical, the AMP03 solves common problems encountered in instrumentation design. As an example, the AMP03 is ideal for performing either addition or subtraction of two signals without using expensive externally-matched precision resistors. The large commonmode rejection is made possible by matching the internal resistors to better than 0.002% and maintaining a thermally symmetric layout. Additionally, due to high CMR over frequency, the AMP03 is an ideal general amplifier for buffering signals in a noisy environment into data acquisition systems. The AMP03 is a higher speed alternative to the INA105. Featuring slew rates of 9.5 V/µs, and a bandwidth of 3 MHz, the AMP03 offers superior performance for high speed current sources, absolute value amplifiers and summing amplifiers than the INA105. REFERENCE 1 –IN 2 8 NC AMP03 7 V+ TOP VIEW (Not to Scale) 6 OUTPUT 3 +IN V– 4 5 SENSE NC = NO CONNECT 8-Lead SOIC (S Suffix) REFERENCE 1 –IN 2 8 NC AMP03 7 V+ TOP VIEW (Not to Scale) 3 6 OUTPUT +IN 5 SENSE V– 4 NC = NO CONNECT Header (J Suffix) NC 8 REFERENCE 1 7 V+ –IN 2 6 OUTPUT 5 SENSE +IN 3 4 V– NC = NO CONNECT REV. E 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 which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1999 AMP03–SPECIFICATIONS ELECTRICAL CHARACTERISTICS (@ V = 615 V, T = +258C, unless otherwise noted) S Parameter Symbol Conditions Offset Voltage Gain Error VOS Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Short-Circuit Current Limit IVR CMR PSRR VO ISC Small-Signal Bandwidth (–3 dB) Slew Rate Capacitive Load Drive Capability Supply Current RL = 2 kΩ RL = 2 kΩ CL ISY No Oscillation No Load AMP03F Typ Max Min VCM = 0 V No Load, VIN = ± 10 V, RS = 0 Ω (Note 1) VCM = ± 10 V VS = ± 6 V to ± 18 V RL = 2 kΩ Output Shorted to Ground BW SR A –400 10 400 Min AMP03B Typ Max –700 0.00004 0.008 ± 10 85 ± 12 10 ± 12 +45/–15 6 700 –750 0.00004 0.008 ± 10 80 100 0.6 ± 13.7 20 95 0.6 ± 13.7 300 2.5 ± 12 +45/–15 300 2.5 3.5 µV 750 95 0.7 10 ± 13.7 10 3 9.5 6 25 Units 0.001 0.008 ± 10 80 +45/–15 3 9.5 AMP03G Typ Max Min 6 mA 3 9.5 MHz V/µs 300 2.5 3.5 % V dB µV/V V 3.5 pF mA NOTES 1 Input voltage range guaranteed by CMR test. Specifications subject to change without notice. ELECTRICAL CHARACTERISTICS (@ V = 615 V, –558C ≤ T ≤ +1258C for B Grade) S A Parameter Symbol Conditions Min Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Slew Rate Supply Current VOS VCM = 0 V No Load, VIN = ± 10 V, RS = 0 Ω –1500 IVR CMR VCM = ± 10 V PSRR VO SR ISY VS = ± 6 V to ± 18 V RL = 2 kΩ RL = 2 kΩ No Load AMP03B Typ ± 20 75 ± 12 150 0.0014 Max Units 1500 0.02 µV % V dB 20 µV/V V V/µs mA 95 0.7 ± 13.7 9.5 3.0 4.0 Specifications subject to change without notice. ELECTRICAL CHARACTERISTICS (@ V = 615 V, –408C ≤ T ≤ +858C for F and G Grades) S A AMP03F Typ Max Parameter Symbol Conditions Min Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Slew Rate Supply Current VOS VCM = 0 V No Load, VIN = ± 10 V, RS = 0 Ω –1000 100 1000 0.0008 0.015 ± 20 80 95 IVR CMR VCM = ± 10 V PSRR VO SR ISY VS = ± 6 V to ± 18 V RL = 2 kΩ RL = 2 kΩ No Load ± 12 0.7 ± 13.7 9.5 2.6 Min –2000 200 0.002 ± 20 75 90 15 ± 12 4.0 AMP03G Typ Max 1.0 ± 13.7 9.5 2.6 Units 2000 0.02 µV % V dB 15 µV/V V V/µs mA 4.0 Specifications subject to change without notice. –2– REV. E AMP03 WAFER TEST LIMITS (@ V = 615 V, T = +258C, unless otherwise noted) S A AMP03BC Limit Parameter Symbol Conditions Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Short-Circuit Current Limit Supply Current VOS VS = ± 18 V No Load, VIN = ± 10 V, RS = 0 Ω IVR CMR PSRR VO ISC ISY VCM = ± 10 V VS = ± 6 V to ± 18 V RL = 2 kΩ Output Shorted to Ground No Load Units 0.5 0.008 ± 10 80 8 ± 12 +45/–15 3.5 mV max % max V min dB min µV/V max V max mA min mA max 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 qualifications through sample lot assembly and testing. ABSOLUTE MAXIMUM RATINGS 1 Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V Input Voltage2 . . . . . . . . . . . . . . . . . . . . . . . . . Supply Voltage Output Short-Circuit Duration . . . . . . . . . . . . . . Continuous Storage Temperature Range P, J Package . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . +300°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +150°C Operating Temperature Range AMP03B . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C AMP03F, AMP03G . . . . . . . . . . . . . . . . . . –40°C to +85°C Package Type uJA3 uJC Units Header (J) 8-Lead Plastic DIP (P) 8-Lead SOIC (S) 150 103 155 18 43 40 °C/W °C/W °C/W DICE CHARACTERISTICS 1. 2. 3. 4. 5. 6. 7. 8. Reference –IN +IN V– SENSE OUTPUT V+ NC DIE SIZE 0.076 3 0.076 inch, 5,776 sq. mils (1.93 3 1.93 mm, 3.73 sq. mm) BURN-IN CIRCUIT +18V NOTES 1 Absolute maximum ratings apply to both DICE and packaged parts, unless otherwise noted. 2 For supply voltages less than ± 18 V, the absolute maximum input voltage is equal to the supply voltage. 3 θJA is specified for worst case mounting conditions, i.e., θJA is specified for device in socket for header and plastic DIP packages and for device soldered to printed circuit board for SOIC package. AMP03 25kV 25kV 25kV ORDERING GUIDE1 Model AMP03GP AMP03BJ AMP03FJ AMP03BJ/883C AMP03GS AMP03GS-REEL 5962-9563901MGA AMP03GBC Temperature Range Package Description Package Option2 –40°C to +85°C –40°C to +85°C –40°C to +85°C –55°C to +125°C –40°C to +85°C –40°C to +85°C –55°C to +125°C 8-Lead Plastic DIP Header Header Header 8-Lead SOIC 8-Lead SOIC Header Die N-8 H-08B H-08B H-08B SO-8 SO-8 H-08B –18V SLEW RATE TEST CIRCUIT +15V AMP03 VOUT = 610V VIN = 610V NOTES 1 Burn-in is available on commercial and industrial temperature range parts in plastic DIP and header packages. 2 For devices processed in total compliance to MIL-STD-883, add /883 after part number. Consult factory for /883 data sheet. 0.1mF –15V 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 AMP03 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. E 0.1mF –3– WARNING! ESD SENSITIVE DEVICE AMP03–Typical Performance Characteristics 0.1 TA = +258C VS = 615V 110 100 TA = +258C VS = 615V AV = –1 90 80 0.010 THD+N – % COMMON-MODE REJECTION – dB 120 70 60 50 40 RL = 600V 0.001 30 RL = 100kV 20 10 0 Figure 1. Small Signal Transient Response 1 10 100 1k 10k FREQUENCY – Hz 100k 1M Figure 2. Common-Mode Rejection vs. Frequency 0.0001 20 10k 20k Figure 3. Total Harmonic Distortion vs. Frequency 120 0.1 TA = +258C VS = 615V 110 100 TA = +258C VS = 615V AV = –1 90 –PSRR 80 0.010 70 DIM – % POWER SUPPLY REJECTION – dB 100 1k FREQUENCY – Hz 60 50 +PSRR 40 RL = 600V, 100kV 0.001 30 20 10 0 1 Figure 4. Large Signal Transient Response 100k 1M 40 600 400 200 0 –200 –400 –600 10k FREQUENCY – Hz 50k Figure 6. Dynamic Intermodulation Distortion vs. Frequency TA = +25°C VS = 615V TA = +25°C VS = 615V OUTPUT IMPEDANCE – V 800 0.0001 2k 10 50 VS = 615V –800 –75 –50 –25 100 1k 10k FREQUENCY – Hz Figure 5. Power Supply Rejection vs. Frequency CLOSED-LOOP GAIN – dB INPUT OFFSET VOLTAGE – mV 1000 10 30 20 10 0 –10 8 6 4 2 –20 0 25 50 75 100 125 150 TEMPERATURE – 8C Figure 7. Input Offset Voltage vs. Temperature –30 100 0 1k 10k 100k FREQUENCY – Hz 1M 10M Figure 8. Closed-Loop Gain vs. Frequency –4– 100 1k 10k 100k FREQUENCY – Hz 1M Figure 9. Closed-Loop Output Impedance vs. Frequency REV. E AMP03 13 VS = 615V RS = 0V SLEW RATE – V/ms GAIN ERROR – % 0.001 0.000 –0.001 –0.002 8 MAXIMUM OUTPUT VOLTAGE – Volts 3 2 1 65 610 615 SUPPLY VOLTAGE – Volts 620 Figure 13. Supply Current vs. Supply Voltage 120 4 3 2 1 0 –75 –50 –25 100 125 0 25 50 75 100 125 150 TEMPERATURE – 8C Figure 12. Supply Current vs. Temperature –17.5 17.5 TA = +258C SUPPLY CURRENT – mA 9 Figure 11. Slew Rate vs. Temperature 4 VOLTAGE NOISE DENSITY – nV/ Hz 10 6 –75 –50 –25 0 25 50 75 TEMPERATURE – 8C 0 25 50 75 100 125 150 TEMPERATURE – 8C Figure 10. Gain Error vs. Temperature 0 11 7 –0.003 –75 –50 –25 0 VS = 615V 5 SUPPLY CURRENT – mA 12 0.002 6 VS = 615V RL = 2kV VS = 618V 15.0 TA = +258C VS = 615V 12.5 10.0 VS = 612V 7.5 VS = 69V 5.0 VS = 65V 2.5 MAXIMUM OUTPUT VOLTAGE – Volts 0.003 VS = 618V –15.0 VS = 615V –12.5 –10.0 VS = 612V –7.5 VS = 69V –5.0 VS = 65V –2.5 TA = +258C 0 0 0 6 12 18 24 30 OUTPUT SOURCE CURRENT – mA 0 36 Figure 14. Maximum Output Voltage vs. Output Current (Source) –2 –4 –6 –10 –8 OUTPUT SINK CURRENT – mA –12 Figure 15. Maximum Output Voltage vs. Output Current (Sink) TA = +258C VS = 615V 100 80 60 +1mV +10mV 0V 0V –1mV –10mV 40 20 0 1 10 100 1k FREQUENCY – Hz 10k Figure 16. Voltage Noise Density vs. Frequency NOTE: EXTERNAL AMPLIFIER GAIN = 1000; THEREFORE, VERTICAL SCALE = 10mV/DIV. 0.1 TO 10Hz PEAK-TO-PEAK NOISE Figure 17. Low Frequency Voltage Noise Figure 18. Voltage Noise from 0 kHz to 1 kHz +10mV 0V –10mV NOTE: EXTERNAL AMPLIFIER GAIN = 1000; THEREFORE, VERTICAL SCALE = 10mV/DIV. Figure 19. Voltage Noise from 0 kHz to 10 kHz REV. E –5– AMP03 +V APPLICATIONS INFORMATION 0.1mF The AMP03 represents a versatile analog building block. In order to capitalize on fast settling time, high slew rate and high CMR, proper decoupling and grounding techniques must be employed. Figure 20 illustrates the use of 0.1 µF decoupling capacitors and proper ground connections. (GROUND REFERENCE 2) AMP03 VOUT = –VSIGNAL VSIGNAL –V ECM MAINTAINING COMMON-MODE REJECTION 0.1mF GROUND REFERENCE 1 In order to achieve the full common-mode rejection capability of the AMP03, the source impedance must be carefully controlled. Slight imbalances of the source resistance will result in a degradation of DC CMR—even a 5 Ω imbalance will degrade CMR by 20 dB. Also, the matching of the reactive source impedance must be matched in order to preserve the CMRR over frequency. GROUND REFERENCE 2 Figure 20. AMP03 Serves to Reject Common-Mode Voltages in Instrumentation Systems. Common-Mode Voltages Occur Due to Ground Current Returns. VSIGNAL and ECM Must Be Within the Common-Mode Range of AMP03. APPLICATION CIRCUITS +15V 0.1mF AMP03 R1 25kV R2 25kV REF10 +5V OUT –IN E1 E0 = E2 –E1 AMP03 –5V OUT +IN E2 R3 25kV R4 25kV Figure 21. Precision Difference Amplifier. Rejects Common-Mode Signal = (E1 + E2)/2 by 100 dB Figure 24. 65 V Precision Voltage Reference AMP03 E1 AMP03 E0 = –E1 E0 = E1 + E2 E1 E2 Figure 22. Precision Unity-Gain Inverting Amplifier Figure 25. Precision Summing Amplifier +15V R1 0.1mF R2 +10V OUT REF10 AMP03 AMP03 –10V OUT E1 E0 = (R2 /R1 +1) E1 = E2 2 E2 Figure 23. 610 V Precision Voltage Reference Figure 26. Precision Summing Amplifier with Gain –6– REV. E AMP03 AMP03 E2 R System Design Requirement Suggested Op Amp For A1 and A2 Source Impedance Low, Need Low Voltage Noise Performance OP27, OP37 OP227 (Dual Matched) OP270 (Dual) OP271 OP470 OP471 Source Impedance High (RS ≥ 15 kΩ). Need Low Current Noise OP80 OP41 OP43 OP249 OP97 Require Ultrahigh Input Impedance OP80 OP97 OP41 OP43 Need Wider Bandwidth and High Speed OP42 OP43 OP249 E1 OP80EJ I 0 = (E1 – E2 )/R I0 LOAD Figure 27. Differential Input Voltage-to-Current Converter for Low IOUT. OP80EJ Maintains 250 fA Max Input Current, Allowing IO to Be Less Than 1 pA AMP03 –IN E1 A1 R2 R1 E0 OUTPUT R2 A2 +IN E2 E0 = (1 + 2R2 /R1) (E2 – E1) Figure 28. Suitable Instrumentation Amplifier Requirements Can Be Addressed by Using an Input Stage Consisting of A1, A2, R1 and R2. The Following Matrix Suggests a Suitable Amplifier. REV. E –7– AMP03 OUTLINE DIMENSIONS Dimensions shown in inches and (mm). C3154e–0–8/99 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84) 8 5 1 PIN 1 0.280 (7.11) 0.240 (6.10) 4 0.100 (2.54) BSC 0.210 (5.33) MAX 0.325 (8.25) 0.300 (7.62) 0.060 (1.52) 0.015 (0.38) 0.195 (4.95) 0.115 (2.93) 0.130 (3.30) MIN 0.160 (4.06) 0.115 (2.93) 0.015 (0.381) 0.008 (0.204) 0.022 (0.558) 0.070 (1.77) SEATING 0.014 (0.356) 0.045 (1.15) PLANE 8-Lead SOIC (SO-8) 0.1968 (5.00) 0.1890 (4.80) 0.1574 (4.00) 0.1497 (3.80) 8 5 1 4 0.2440 (6.20) 0.2284 (5.80) PIN 1 0.0196 (0.50) 3 458 0.0099 (0.25) 0.0500 (1.27) BSC 0.0098 (0.25) 0.0040 (0.10) SEATING PLANE 0.0688 (1.75) 0.0532 (1.35) 88 0.0500 (1.27) 0.0098 (0.25) 08 0.0160 (0.41) 0.0075 (0.19) 0.0192 (0.49) 0.0138 (0.35) 8-Lead Metal Can (H-08B) 0.185 (4.70) 0.165 (4.19) REFERENCE PLANE 0.750 (19.05) 0.500 (12.70) 0.250 (6.35) MIN 0.100 (2.54) BSC 0.160 (4.06) 0.110 (2.79) 0.050 (1.27) MAX 5 0.040 (1.02) MAX 0.045 (1.14) 0.010 (0.25) 0.200 (5.08) BSC 6 3 7 2 0.100 (2.54) BSC 0.019 (0.48) 0.016 (0.41) 0.021 (0.53) 0.016 (0.41) 0.045 (1.14) 0.027 (0.69) PRINTED IN U.S.A. 0.370 (9.40) 0.335 (8.51) 0.335 (8.51) 0.305 (7.75) 4 8 1 0.034 (0.86) 0.027 (0.69) 45° BSC BASE & SEATING PLANE –8– REV. E