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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/ s Typ Fast Settling (0.01%): 1 s 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
25k -IN 2 25k 5 SENSE +VCC
7
6
OUTPUT -VEE
4 25k +IN 3 25k 1
REFERENCE
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/s, 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
7 V+ TOP VIEW 3 (Not to Scale) 6 OUTPUT +IN V- 4 5 SENSE
AMP03
NC = NO CONNECT
8-Lead SOIC (S Suffix)
REFERENCE 1 -IN 2 8 NC
7 V+ TOP VIEW 3 (Not to Scale) 6 OUTPUT +IN V- 4 5 SENSE
AMP03
NC = NO CONNECT
Header (J Suffix)
NC 8 REFERENCE 1 7 V+
-IN 2
6 OUTPUT 5 SENSE 4 V- NC = NO CONNECT
+IN 3
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 (c) Analog Devices, Inc., 1999
AMP03-SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ V =
S
15 V, TA = +25 C, unless otherwise noted)
Min -400 AMP03F Typ Max 10 400 Min -700 AMP03B Typ Max 20 700 Min -750 AMP03G Typ Max 25 750 Units V % V dB V/V V mA 3 9.5 300 2.5 MHz V/s pF mA
Parameter Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Short-Circuit Current Limit Small-Signal Bandwidth (-3 dB) Slew Rate Capacitive Load Drive Capability Supply Current
Symbol Conditions VOS VCM = 0 V No Load, VIN = 10 V, RS = 0 (Note 1) VCM = 10 V VS = 6 V to 18 V RL = 2 k Output Shorted to Ground RL = 2 k RL = 2 k No Oscillation No Load
0.00004 0.008 10 85 12 +45/-15 3 9.5 300 2.5 100 0.6 13.7 10 80 10 12 +45/-15
0.00004 0.008 95 0.6 13.7 10 80 10 12 +45/-15 3 9.5 300 2.5
0.001 0.008 95 0.7 10 13.7
IVR CMR PSRR VO ISC
BW SR CL ISY
6
6
6
3.5
3.5
3.5
NOTES 1 Input voltage range guaranteed by CMR test. Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS (@ V =
S
15 V, -55 C TA +125 C for B Grade)
Min -1500 20 75 AMP03B Typ 150 0.0014 95 0.7 13.7 9.5 3.0 20 Max 1500 0.02 Units V % V dB V/V V V/s mA
Parameter Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Slew Rate Supply Current
Symbol VOS IVR CMR PSRR VO SR ISY
Conditions VCM = 0 V No Load, VIN = 10 V, RS = 0 VCM = 10 V VS = 6 V to 18 V RL = 2 k RL = 2 k No Load
12
4.0
Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS (@ V =
S
15 V, -40 C TA +85 C for F and G Grades)
Min AMP03F Typ Max Min AMP03G Typ Max 2000 0.02 Units V % V dB V/V V V/s mA
Parameter Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Slew Rate Supply Current
Symbol VOS IVR CMR PSRR VO SR ISY
Conditions VCM = 0 V No Load, VIN = 10 V, RS = 0 VCM = 10 V VS = 6 V to 18 V RL = 2 k RL = 2 k No Load
-1000 100 1000 0.0008 0.015 20 80 95 0.7 13.7 9.5 2.6 15
-2000 200 0.002 20 75 90 1.0 13.7 9.5 2.6
15
12
12 4.0
4.0
Specifications subject to change without notice.
-2-
REV. E
AMP03 WAFER TEST LIMITS (@ V =
S
15 V, TA = +25 C, unless otherwise noted)
Symbol VOS IVR CMR PSRR VO ISC ISY Conditions VS = 18 V No Load, VIN = 10 V, RS = 0 VCM = 10 V VS = 6 V to 18 V RL = 2 k Output Shorted to Ground No Load AMP03BC Limit 0.5 0.008 10 80 8 12 +45/-15 3.5 Units mV max % max V min dB min V/V max V max mA min mA max
Parameter Offset Voltage Gain Error Input Voltage Range Common-Mode Rejection Power Supply Rejection Ratio Output Swing Short-Circuit Current Limit Supply Current
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 . . . . . . . . . . . . . . . . . . . . . . . -65C to +150C Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . +300C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . +150C Operating Temperature Range AMP03B . . . . . . . . . . . . . . . . . . . . . . . . . -55C to +125C AMP03F, AMP03G . . . . . . . . . . . . . . . . . . -40C to +85C Package Type Header (J) 8-Lead Plastic DIP (P) 8-Lead SOIC (S)
JA 3 JC
DICE CHARACTERISTICS
1. 2. 3. 4. 5. 6. 7. 8.
Reference -IN +IN V- SENSE OUTPUT V+ NC
Units C/W C/W C/W
150 103 155
18 43 40
DIE SIZE 0.076 0.076 inch, 5,776 sq. mils (1.93 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 JA is specified for worst case mounting conditions, i.e., JA is specified for device in socket for header and plastic DIP packages and for device soldered to printed circuit board for SOIC package.
25k
AMP03
25k
25k
ORDERING GUIDE1
Model AMP03GP AMP03BJ AMP03FJ AMP03BJ/883C AMP03GS AMP03GS-REEL 5962-9563901MGA AMP03GBC Temperature Range -40C to +85C -40C to +85C -40C to +85C -55C to +125C -40C to +85C -40C to +85C -55C to +125C Package Description 8-Lead Plastic DIP Header Header Header 8-Lead SOIC 8-Lead SOIC Header Die Package Option2 N-8 H-08B H-08B H-08B SO-8 SO-8 H-08B
VIN = 10V 0.1 F -15V
-18V
SLEW RATE TEST CIRCUIT
+15V 0.1 F
AMP03
VOUT =
10V
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.
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.
WARNING!
ESD SENSITIVE DEVICE
REV. E
-3-
AMP03-Typical Performance Characteristics
120
COMMON-MODE REJECTION - dB
110 100 90 80 70 60 50 40 30 20 10 0 1 10
TA = +25 C VS = 15V
0.1 TA = +25 C VS = 15V AV = -1 0.010
THD+N - %
RL = 600
0.001 RL = 100k
100 1k 10k FREQUENCY - Hz
100k
1M
0.0001 20
100 1k FREQUENCY - Hz
10k 20k
Figure 1. Small Signal Transient Response
Figure 2. Common-Mode Rejection vs. Frequency
Figure 3. Total Harmonic Distortion vs. Frequency
120
POWER SUPPLY REJECTION - dB
0.1
TA = +25 C VS = 15V
110 100 90 80 70 60 50 40 30 20 10 0 1 10
TA = +25 C VS = 15V AV = -1 0.010
DIM - %
-PSRR
RL = 600 , 100k 0.001
+PSRR
100 1k 10k FREQUENCY - Hz
100k
1M
0.0001 2k
10k FREQUENCY - Hz
50k
Figure 4. Large Signal Transient Response
Figure 5. Power Supply Rejection vs. Frequency
Figure 6. Dynamic Intermodulation Distortion vs. Frequency
1000 VS = INPUT OFFSET VOLTAGE - V 800
CLOSED-LOOP GAIN - dB
15V
50 40 30 20 10 0 -10 -20 TA = +25C VS = 15V
OUTPUT IMPEDANCE -
10 TA = +25C VS = 15V 8
600 400 200 0 -200 -400 -600 -800 -75 -50 -25 0 25 50 75 100 125 150 TEMPERATURE - C
6
4
2
-30 100
0
1k 10k 100k FREQUENCY - Hz 1M 10M
100
1k
10k 100k FREQUENCY - Hz
1M
Figure 7. Input Offset Voltage vs. Temperature
Figure 8. Closed-Loop Gain vs. Frequency
Figure 9. Closed-Loop Output Impedance vs. Frequency
-4-
REV. E
AMP03
0.003 VS = 15V RS = 0 0.002 0.001
SLEW RATE - V/ s
GAIN ERROR - %
13 12 11 10 9 8 7 6 -75 -50 -25 0 25 50 75 TEMPERATURE - C VS = 15V RL = 2k
SUPPLY CURRENT - mA
6 VS = 5 15V
4
0.000 -0.001
3 2
-0.002 -0.003 -75 -50 -25
1 0 -75 -50 -25
0 25 50 75 100 125 150 TEMPERATURE - C
100 125
0 25 50 75 100 125 150 TEMPERATURE - C
Figure 10. Gain Error vs. Temperature
Figure 11. Slew Rate vs. Temperature
Figure 12. Supply Current vs. Temperature
-17.5
MAXIMUM OUTPUT VOLTAGE - Volts
4 TA = +25 C
MAXIMUM OUTPUT VOLTAGE - Volts
17.5 15.0 12.5 10.0 7.5 5.0 2.5 0 0 VS = 5V VS = VS = 18V 15V
TA = +25 C
-15.0 -12.5 -10.0 -7.5
VS = VS =
18V 15V
SUPPLY CURRENT - mA
3
2
VS = VS =
12V 9V
VS =
12V
VS = -5.0 -2.5 0 VS =
9V
1
5V TA = +25 C
0 0 5 10 15 SUPPLY VOLTAGE - Volts 20
6 12 18 24 30 OUTPUT SOURCE CURRENT - mA
36
0
-2 -4 -6 -10 -8 OUTPUT SINK CURRENT - mA
-12
Figure 13. Supply Current vs. Supply Voltage
120 TA = +25 C VS = 15V
Figure 14. Maximum Output Voltage vs. Output Current (Source)
Figure 15. Maximum Output Voltage vs. Output Current (Sink)
VOLTAGE NOISE DENSITY - nV/ Hz
100
80 +1 V 60 0V -1 V 40
+10 V 0V -10 V
20 0 1 10 100 1k FREQUENCY - Hz 10k
0.1 TO 10Hz PEAK-TO-PEAK NOISE
NOTE: EXTERNAL AMPLIFIER GAIN = 1000; THEREFORE, VERTICAL SCALE = 10 V/DIV.
Figure 16. Voltage Noise Density vs. Frequency
Figure 17. Low Frequency Voltage Noise
Figure 18. Voltage Noise from 0 kHz to 1 kHz
+10 V 0V -10 V
NOTE: EXTERNAL AMPLIFIER GAIN = 1000; THEREFORE, VERTICAL SCALE = 10 V/DIV.
Figure 19. Voltage Noise from 0 kHz to 10 kHz
REV. E
-5-
AMP03
+V 0.1 F (GROUND REFERENCE 2) AMP03 VSIGNAL -V 0.1 F VOUT = -VSIGNAL
APPLICATIONS INFORMATION
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 F decoupling capacitors and proper ground connections.
MAINTAINING COMMON-MODE REJECTION
ECM
GROUND REFERENCE 1
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.
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 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.
APPLICATION CIRCUITS
+15V 0.1 F
AMP03
R1 25k -IN E1 E0 = E2 -E1 +IN E2 R2 25k
REF10
+5V OUT
AMP03
-5V OUT
R3 25k
R4 25k
Figure 21. Precision Difference Amplifier. Rejects Common-Mode Signal = (E1 + E2)/2 by 100 dB Figure 24.
AMP03
E1 E0 = -E1
5 V Precision Voltage Reference
AMP03
E1 E2
E0 = E1 + E2
Figure 22. Precision Unity-Gain Inverting Amplifier
Figure 25. Precision Summing Amplifier
+15V 0.1 F +10V OUT
R1
R2
REF10
AMP03
-10V OUT
AMP03
E0 = (R2 /R1 +1) E1 = E2 2
E1 E2
Figure 23.
10 V Precision Voltage Reference
Figure 26. Precision Summing Amplifier with Gain
-6-
REV. E
AMP03
AMP03
E2
System Design Requirement Source Impedance Low, Need Low Voltage Noise Performance
Suggested Op Amp For A1 and A2 OP27, OP37 OP227 (Dual Matched) OP270 (Dual) OP271 OP470 OP471 OP80 OP41 OP43 OP249 OP97 OP80 OP97 OP41 OP43 OP42 OP43 OP249
R 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
-IN E1
Source Impedance High (RS 15 k). Need Low Current Noise
AMP03
A1 R2 R1 R2 E0 OUTPUT
Require Ultrahigh Input Impedance
A2 +IN E2 E0 = (1 + 2R2 /R1) (E2 - E1)
Need Wider Bandwidth and High Speed
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).
8-Lead Plastic DIP (N-8)
0.430 (10.92) 0.348 (8.84)
8 5
0.280 (7.11) 0.240 (6.10) 0.325 (8.25) 0.300 (7.62) 0.060 (1.52) 0.015 (0.38) 0.130 (3.30) MIN 0.015 (0.381) 0.008 (0.204) 0.195 (4.95) 0.115 (2.93)
1
4
PIN 1
0.100 (2.54) BSC
0.210 (5.33) MAX 0.160 (4.06) 0.115 (2.93)
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)
8 5 4
0.1574 (4.00) 0.1497 (3.80) PIN 1
1
0.2440 (6.20) 0.2284 (5.80)
0.0500 (1.27) BSC 0.0098 (0.25) 0.0040 (0.10) SEATING PLANE 0.0688 (1.75) 0.0532 (1.35) 0.0192 (0.49) 0.0138 (0.35) 8 0.0098 (0.25) 0 0.0075 (0.19)
0.0196 (0.50) 0.0099 (0.25)
45
0.0500 (1.27) 0.0160 (0.41)
8-Lead Metal Can (H-08B)
REFERENCE PLANE 0.750 (19.05) 0.500 (12.70) 0.250 (6.35) MIN 0.100 (2.54) BSC 0.050 (1.27) MAX 5 0.160 (4.06) 0.110 (2.79) 6 7 2 0.019 (0.48) 0.016 (0.41) 0.021 (0.53) 0.016 (0.41) BASE & SEATING PLANE 0.100 (2.54) BSC 1 0.034 (0.86) 0.027 (0.69) 45 BSC 8 0.045 (1.14) 0.027 (0.69)
0.185 (4.70) 0.165 (4.19)
0.370 (9.40) 0.335 (8.51) 0.335 (8.51) 0.305 (7.75)
0.200 (5.08) BSC
3
0.040 (1.02) MAX 0.045 (1.14) 0.010 (0.25)
-8-
REV. E
PRINTED IN U.S.A.
4
C3154e-0-8/99

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