Page 1
Precision, Unity-Gain
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
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. Fea-
turing 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.
Differential Amplifier
AMP03
FUNCTIONAL BLOCK DIAGRAM
AMP03
AMP03
AMP03
NC
8
4
V–
25kV
25kV
8
7
6
5
8
7
6
5
NC
V+
OUTPUT
SENSE
NC
V+
OUTPUT
SENSE
7 V+
6 OUTPUT
5 SENSE
5
SENSE
+V
7
CC
6
OUTPUT
–V
4
EE
1
REFERENCE
25kV
2
–IN
25kV
+IN
3
PIN CONNECTIONS
8-Lead Plastic DIP
(P Suffix)
REFERENCE
1
2
–IN
TOP VIEW
(Not to Scale)
3
+IN
4
V–
NC = NO CONNECT
8-Lead SOIC
(S Suffix)
REFERENCE
1
2
–IN
TOP VIEW
(Not to Scale)
3
+IN
4
V–
NC = NO CONNECT
Header
(J Suffix)
REFERENCE 1
–IN 2
+IN 3
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
Page 2
AMP03–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
(@ VS = 615 V, TA = +258C, unless otherwise noted)
AMP03F AMP03B AMP03G
Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Units
Offset Voltage V
OS
Gain Error No Load, V
V
= 0 V –400 10 400 –700 20 700 –750 25 750 µV
CM
= 0 Ω 0.00004 0.008 0.00004 0.008 0.001 0.008 %
R
S
= ±10 V,
IN
Input Voltage Range IVR (Note 1) ±10 ±10 ±10 V
Common-Mode Rejection CMR V
Power Supply Rejection Ratio PSRR V
Output Swing V
Short-Circuit Current Limit I
O
SC
= ±10 V 85 100 80 95 80 95 dB
CM
= ±6 V to ±18 V 0.6 10 0.6 10 0.7 10 µV/V
S
R
= 2 kΩ±12 ±13.7 ±12 ±13.7 ±12 ±13.7 V
L
Output Shorted
to Ground +45/–15 +45/–15 +45/–15 mA
Small-Signal Bandwidth
(–3 dB) BW R
Slew Rate SR R
= 2 kΩ 3 3 3 MHz
L
= 2 kΩ 6 9.5 6 9.5 6 9.5 V/µs
L
Capacitive Load Drive
Capability C
Supply Current I
NOTES
1
Input voltage range guaranteed by CMR test.
Specifications subject to change without notice.
L
SY
ELECTRICAL CHARACTERISTICS
No Oscillation 300 300 300 pF
No Load 2.5 3.5 2.5 3.5 2.5 3.5 mA
(@ V
= 615 V, –558C ≤ TA ≤ +1258C for B Grade)
S
AMP03B
Parameter Symbol Conditions Min Typ Max Units
Offset Voltage V
OS
Gain Error No Load, V
V
= 0 V –1500 150 1500 µV
CM
= ±10 V, RS = 0 Ω 0.0014 0.02 %
IN
Input Voltage Range IVR ±20 V
Common-Mode Rejection CMR V
= ±10 V 75 95 dB
CM
Power Supply Rejection
Ratio PSRR V
Output Swing V
O
Slew Rate SR R
Supply Current I
Specifications subject to change without notice.
SY
= ±6 V to ±18 V 0.7 20 µV/V
S
R
= 2 kΩ±12 ±13.7 V
L
= 2 kΩ 9.5 V/µs
L
No Load 3.0 4.0 mA
ELECTRICAL CHARACTERISTICS
(@ V
= 615 V, –408C ≤ TA ≤ +858C for F and G Grades)
S
AMP03F AMP03G
Parameter Symbol Conditions Min Typ Max Min Typ Max Units
Offset Voltage V
OS
Gain Error No Load, V
V
= 0 V –1000 100 1000 –2000 200 2000 µV
CM
= ±10 V, RS = 0 Ω 0.0008 0.015 0.002 0.02 %
IN
Input Voltage Range IVR ±20 ± 20 V
Common-Mode Rejection CMR V
= ±10 V 8095 7590 dB
CM
Power Supply Rejection
Ratio PSRR V
Output Swing V
O
Slew Rate SR R
Supply Current I
Specifications subject to change without notice.
SY
= ±6 V to ±18 V 0.7 15 1.0 15 µV/V
S
R
= 2 kΩ±12 ±13.7 ±12 ±13.7 V
L
= 2 kΩ 9.5 9.5 V/µs
L
No Load 2.6 4.0 2.6 4.0 mA
–2–
REV. E
Page 3
AMP03
1. Reference
2. –IN
3. +IN
4. V–
5. SENSE
6. OUTPUT
7. V+
8. NC
DIE SIZE 0.076 3 0.076 inch, 5,776 sq. mils
(1.93 3 1.93 mm, 3.73 sq. mm)
AMP03
+15V
–15V
0.1mF
0.1mF
VIN = 610V
V
OUT
= 610V
WAFER TEST LIMITS
(@ VS = 615 V, TA = +258C, unless otherwise noted)
AMP03BC
Parameter Symbol Conditions Limit Units
V
Offset Voltage V
OS
Gain Error No Load, V
= ±18 V 0.5 mV max
S
= ±10 V, RS = 0 Ω 0.008 % max
IN
Input Voltage Range IVR ±10 V min
Common-Mode Rejection CMR V
Power Supply Rejection Ratio PSRR V
Output Swing V
Short-Circuit Current Limit I
Supply Current I
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
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Input Voltage
2
. . . . . . . . . . . . . . . . . . . . . . . . . Supply Voltage
O
SC
SY
1
= ±10 V 80 dB min
CM
= ±6 V to ±18 V 8 µV/V max
S
R
= 2 kΩ±12 V max
L
Output Shorted to Ground +45/–15 mA min
No Load 3.5 mA max
DICE CHARACTERISTICS
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 u
3
JA
u
JC
Units
Header (J) 150 18 °C/W
8-Lead Plastic DIP (P) 103 43 °C/W
8-Lead SOIC (S) 155 40 °C/W
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.
ORDERING GUIDE
1
Temperature Package Package
Model Range Description Option
AMP03GP –40°C to +85°C 8-Lead Plastic DIP N-8
AMP03BJ –40°C to +85°C Header H-08B
AMP03FJ –40°C to +85°C Header H-08B
AMP03BJ/883C –55°C to +125°C Header H-08B
AMP03GS –40°C to +85°C 8-Lead SOIC SO-8
AMP03GS-REEL –40°C to +85°C 8-Lead SOIC SO-8
5962-9563901MGA –55°C to +125°C Header H-08B
AMP03GBC Die
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.
REV. E
BURN-IN CIRCUIT
25kV
2
SLEW RATE TEST CIRCUIT
–3–
+18V
AMP03
25kV25kV
–18V
WARNING!
ESD SENSITIVE DEVICE
Page 4
AMP03–Typical Performance Characteristics
Figure 1. Small Signal Transient
Response
Figure 4. Large Signal Transient
Response
120
110
100
90
80
70
60
50
40
30
20
COMMON-MODE REJECTION – dB
10
0
110 1M100 1k 10k 100k
FREQUENCY – Hz
TA = +258C
= 615V
V
S
Figure 2. Common-Mode Rejection
vs. Frequency
120
110
100
90
80
70
60
50
40
30
20
POWER SUPPLY REJECTION – dB
10
0
110 1M100 1k 10k 100k
FREQUENCY – Hz
+PSRR
TA = +258C
= 615V
V
S
–PSRR
Figure 5. Power Supply Rejection
vs. Frequency
0.1
TA = +258C
= 615V
V
S
= –1
A
V
0.010
RL = 600V
THD+N – %
0.001
RL = 100kV
0.0001
20 100 20k
FREQUENCY – Hz
1k 10k
Figure 3. Total Harmonic Distortion
vs. Frequency
0.1
TA = +258C
= 615V
V
S
= –1
A
V
0.010
DIM – %
0.001
0.0001
2k 50k
RL = 600V, 100kV
FREQUENCY – Hz
10k
Figure 6. Dynamic Intermodulation
Distortion vs. Frequency
1000
VS = 615V
800
600
400
200
0
–200
–400
INPUT OFFSET VOLTAGE – mV
–600
–800
–75 –50 150–25 0 25 75 100 12550
TEMPERATURE – 8C
Figure 7. Input Offset Voltage vs.
Temperature
50
TA = +25°C
40
= 615V
V
S
30
20
10
0
–10
CLOSED-LOOP GAIN – dB
–20
–30
100 1k 10M10k 100k 1M
FREQUENCY – Hz
Figure 8. Closed-Loop Gain vs.
Frequency
–4–
10
TA = +25°C
= 615V
V
S
8
6
4
OUTPUT IMPEDANCE – V
2
0
100 1k 1M10k 100k
FREQUENCY – Hz
Figure 9. Closed-Loop Output Impedance vs. Frequency
REV. E
Page 5
AMP03
0.003
VS = 615V
= 0V
R
S
0.002
0.001
0.000
–0.001
GAIN ERROR – %
–0.002
–0.003
–75 –50 100–250 255075
TEMPERATURE – 8C
125 150
Figure 10. Gain Error vs. Temperature
4
TA = +258C
3
2
1
SUPPLY CURRENT – mA
0
0 65 620610 615
SUPPLY VOLTAGE – Volts
Figure 13. Supply Current vs. Supply
Voltage
13
VS = 615V
= 2kV
R
L
12
11
10
9
SLEW RATE – V/ms
8
7
6
–75 –50 125–25 0 25 50 75 100
TEMPERATURE – 8C
Figure 11. Slew Rate vs. Temperature
17.5
15.0
12.5
10.0
7.5
5.0
2.5
MAXIMUM OUTPUT VOLTAGE – Volts
0
06 3612 18 24 30
VS = 618V
VS = 615V
VS = 612V
VS = 69V
VS = 65V
OUTPUT SOURCE CURRENT – mA
TA = +258C
Figure 14. Maximum Output Voltage
vs. Output Current (Source)
6
VS = 615V
5
4
3
2
SUPPLY CURRENT – mA
1
0
–75 –50 125–25 0 25 50 75 100
TEMPERATURE – 8C
150
Figure 12. Supply Current vs.
Temperature
–17.5
–15.0
–12.5
–10.0
–7.5
–5.0
–2.5
MAXIMUM OUTPUT VOLTAGE – Volts
0
0 –2 –12–4 –6
VS = 618V
VS = 615V
VS = 612V
VS = 69V
VS = 65V
TA = +258C
OUTPUT SINK CURRENT – mA
–8
–10
Figure 15. Maximum Output Voltage
vs. Output Current (Sink)
120
Hz
100
80
60
40
20
VOLTAGE NOISE DENSITY – nV/
0
1 10 10k100 1k
FREQUENCY – Hz
TA = +258C
= 615V
V
S
Figure 16. Voltage Noise Density vs.
Frequency
+1mV
0V
–1mV
0.1 TO 10Hz PEAK-TO-PEAK NOISE
Figure 17. Low Frequency Voltage
Noise
+10mV
0V
–10mV
+10mV
0V
–10mV
NOTE: EXTERNAL AMPLIFIER GAIN = 1000;
THEREFORE, VERTICAL SCALE = 10mV/DIV.
Figure 18. Voltage Noise from 0 kHz
to 1 kHz
REV. E
NOTE: EXTERNAL AMPLIFIER GAIN = 1000;
THEREFORE, VERTICAL SCALE = 10mV/DIV.
Figure 19. Voltage Noise from 0 kHz to 10 kHz
–5–
Page 6
AMP03
+V
0.1mF
(GROUND REFERENCE 2)
AMP03
V
SIGNAL
ECM
GROUND REFERENCE 1 GROUND REFERENCE 2
–V
0.1mF
V
= –V
OUT
SIGNAL
Figure 20. AMP03 Serves to Reject Common-Mode Volt ages in Instrumentation Systems. Common-Mode Volt ages Occur Due to Ground Current Returns. V
Must Be Within the Common-Mode Range of AMP03.
E
CM
SIGNAL
and
APPLICATION CIRCUITS
AMP03
R
1
3
25kV
R
25kV
2
E0 = E2–E
1
4
–IN E
+IN E
R
1
2
25kV
R
25kV
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 µF decoupling
capacitors and proper ground connections.
MAINTAINING COMMON-MODE REJECTION
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.
+15V
0.1mF
REF10
AMP03
+5V OUT
–5V OUT
Figure 21. Precision Difference Amplifier. Rejects
Common-Mode Signal = (E
E
AMP03
1
+ E2)/2 by 100 dB
1
E0 = –E
1
Figure 22. Precision Unity-Gain Inverting Amplifier
+15V
0.1mF
+10V OUT
REF10
AMP03
–10V OUT
Figure 23.610 V Precision Voltage Reference
Figure 24.65 V Precision Voltage Reference
AMP03
E
1
E
2
E0 = E1 + E
2
Figure 25. Precision Summing Amplifier
R
1
E
1
E
2
R
2
AMP03
E0 = (R2/R1+1)
E
= E
1
2
2
Figure 26. Precision Summing Amplifier with Gain
–6–
REV. E
Page 7
AMP03
E
E
AMP03
2
R
1
I0 = (E1 – E2)/R
OP80EJ
I
LOAD
0
Figure 27. Differential Input Voltage-to-Current Converter
for Low I
Allowing I
–IN E
+IN E
. OP80EJ Maintains 250 fA Max Input Current,
OUT
to Be Less Than 1 pA
O
1
A
1
R
2
R
R
1
2
A
2
2
AMP03
E0 OUTPUT
E0 = (1 + 2R2/R1) (E2 – E1)
Figure 28. Suitable Instrumentation Amplifier Requirements
Can Be Addressed by Using an Input Stage Consisting of A
A
, R1 and R2. The Following Matrix Suggests a Suitable
2
1
Amplifier.
System Design Suggested Op Amp
Requirement For A1 and A2
Source Impedance Low, Need Low OP27, OP37
Voltage Noise Performance OP227 (Dual Matched)
OP270 (Dual)
OP271
OP470
OP471
Source Impedance High OP80
(R
≥ 15 kΩ). Need Low Current OP41
S
Noise OP43
OP249
OP97
Require Ultrahigh Input Impedance OP80
OP97
OP41
OP43
Need Wider Bandwidth and High OP42
Speed OP43
OP249
,
REV. E
–7–
Page 8
AMP03
PIN 1
0.210
(5.33)
MAX
0.160 (4.06)
0.115 (2.93)
0.022 (0.558)
0.014 (0.356)
0.1574 (4.00)
0.1497 (3.80)
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Plastic DIP
(N-8)
0.430 (10.92)
0.348 (8.84)
8
0.100 (2.54)
5
0.280 (7.11)
14
BSC
0.240 (6.10)
0.060 (1.52)
0.015 (0.38)
0.070 (1.77)
0.045 (1.15)
0.130
(3.30)
MIN
SEATING
PLANE
0.325 (8.25)
0.300 (7.62)
0.015 (0.381)
0.008 (0.204)
8-Lead SOIC
(SO-8)
0.1 968 (5.00)
0.1 890 (4.80)
85
0.2440 (6.20)
0.2284 (5.80)
41
0.195 ( 4.95)
0.115 (2.93)
C3154e–0–8/99
PIN 1
0.0098 (0.25)
0.0040 (0.10)
SEATING
0.185 (4.70)
0.165 (4.19)
0.370 (9.40)
0.335 (8.51)
0.335 (8.51)
0.305 (7.75)
0.040 (1.02) MAX
0.045 (1.14)
0.010 (0.25)
PLANE
0.0500 (1.27)
BSC
0.0192 (0.49)
0.0138 (0.35)
0.0688 (1.75)
0.0532 (1.35)
8-Lead Metal Can
REFERENCE PLANE
0.750 (19.05)
0.500 (12.70)
0.250 (6. 35) MIN
0.050 (1.27) MAX
0.019 (0.48)
0.016 (0.41)
0.021 (0.53)
0.016 (0.41)
BASE & SEATING PLANE
0.0098 (0.25)
0.0075 (0.19)
(H-08B)
0.200
(5.08)
BSC
0.100 (2.54) BSC
4
3
2
0.100
(2.54)
BSC
0.0196 (0.50)
0.0099 (0.25)
88
0.0500 (1.27)
08
0.0160 (0.41)
5
1
0.034 (0.86)
0.027 (0.69)
0.160 (4.06)
0.110 (2.79)
6
7
8
45° BSC
3 458
0.045 (1.14)
0.027 (0.69)
PRINTED IN U.S.A.
–8–
REV. E
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