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AMP02FS
High Accuracy 8-Pin Instrumentation Amplifier
REV. D
High Accuracy 8-Pin
Instrumentation Amplifier
PIN CONNECTIONS
Epoxy Mini-DIP16-Pin SOL
(P Suffix)(S Suffix)
and
Cerdip
(Z Suffix)Figure 1.Basic Circuit Connections
FEATURES
Low Offset Voltage: 100 mV max
Low Drift: 2 mV/8C max
Wide Gain Range 1 to 10,000
High Common-Mode Rejection: 115 dB min
High Bandwidth (G = 1000): 200 kHz typ
Gain Equation Accuracy: 0.5% max
Single Resistor Gain Set
Input Overvoltage Protection
Low Cost
Available In Die Form
APPLICATIONS
Differential Amplifier
Strain Gauge Amplifier
Thermocouple Amplifier
RTD Amplifier
Programmable Gain Instrumentation Amplifier
Medical Instrumentation
Data Acquisition Systems
GENERAL DESCRIPTIONThe AMP02 is the first precision instrumentation amplifier
available in an 8-pin package. Gain of the AMP02 is set by a
single external resistor, and can range from 1 to 10,000. No
gain set resistor is required for unity gain. The AMP02 includes
an input protection network that allows the inputs to be taken
60 V beyond either supply rail without damaging the device.
Laser trimming reduces the input offset voltage to under 100 μV.
Output offset voltage is below 4 mV and gain accuracy is better
than 0.5% for gain of 1000. PMI’s proprietary thin-film resistor
process keeps the gain temperature coefficient under 50 ppm/°C.
Due to the AMP02’s design, its bandwidth remains very high
over a wide range of gain. Slew rate is over 4 V/μs making the
AMP02 ideal for fast data acquisition systems.
A reference pin is provided to allow the output to be referenced
to an external dc level. This pin may be used for offset correc-
tion or level shifting as required. In the 8-pin package, sense is
internally connected to the output.
For an instrumentation amplifier with the highest precision,
consult the AMP01 data sheet. For the highest input impedance
and speed, consult the AMP05 data sheet.
NC = NO CONNECT
SENSE INPUT
AMP02–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS(@ VS = 615 V, VCM = 0 V, TA = +258C, unless otherwise noted.)
NOTESInput voltage range guaranteed by common-mode rejection test.Guaranteed by design.Gain tempco does not include the effects of external component drift.
Specifications subject to change without notice.
ORDERING GUIDE
ABSOLUTE MAXIMUM RATINGSSupply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±18 V
Common-Mode Input Voltage .[(V–) – 60 V] to [(V+) + 60 V]
Differential Input Voltage . . . .[(V–) – 60 V] to [(V+) + 60 V]
Output Short-Circuit Duration . . . . . . . . . . . . . . .Continuous
Operating Temperature Range . . . . . . . . . . . .–40°C to +85°C
Storage Temperature Range . . . . . . . . . . . .–65°C to +150°C
Function Temperature Range . . . . . . . . . . .–65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . .+300°C
NOTESAbsolute maximum ratings apply to both DICE and packaged parts, unless oth-
erwise noted.θJA is specified for worst case mounting conditions, i.e., θJA is specified for de-
vice in socket for P-DIP package; θJA is specified for device soldered to printed
circuit board for SOL package.
Figure 2.Simplified Schematic
AMP02
Figure 3.Typical Distribution of
Input Offset Voltage
Figure 6.Typical Distribution of
Output Offset Voltage
Figure 9.Input Offset Current
vs. Temperature
Figure 4.Typical Distribution
of TCVIOS
Figure 7.Typical Distribution
of TCVOOS
Figure 10.Input Bias Current
vs. Temperature
Figure 5.Input Offset Voltage
Change vs. Supply Voltage
Figure 8.Output Offset Voltage
Change vs. Supply Voltage
Figure 11.Input Bias Current
vs. Supply Voltage
AMP02Figure 12.Closed-Loop Voltage
Gain vs. Frequency
Figure 15.Positive PSR vs. Frequency
Figure 18.Voltage Noise Density
vs. Frequency
Figure 13.Common-Mode Rejection
vs. Frequency
Figure 16.Negative PSR vs. Frequency
Figure 19.RTI Voltage Noise
Density vs. Gain
Figure 14.Common-Mode Rejection
vs. Voltage Gain
Figure 17.Total Harmonic Distortion
vs. Frequency
Figure 20.0.1 Hz to 10 Hz Noise
AV = 1000