AMP04FPZ Datasheet, PDF (1/16 Pages) Analog Devices – Precision Single Supply Instrumentation Amplifier

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Precision Single Supply
Instrumentation Amplifier
AMP04
FEATURES
Single Supply Operation
Low Supply Current: 700 ␮A Max
Wide Gain Range: 1 to 1000
Low Offset Voltage: 150 ␮V Max
Zero-In/Zero-Out
Single-Resistor Gain Set
8-Lead Mini-DIP and SO Packages
APPLICATIONS
Strain Gages
Thermocouples
RTDs
Battery-Powered Equipment
Medical Instrumentation
Data Acquisition Systems
PC-Based Instruments
Portable Instrumentation
GENERAL DESCRIPTION
The AMP04 is a single-supply instrumentation amplifier
designed to work over a +5 volt to ± 15 volt supply range. It
offers an excellent combination of accuracy, low power con-
sumption, wide input voltage range, and excellent gain
performance.
Gain is set by a single external resistor and can be from 1 to
1000. Input common-mode voltage range allows the AMP04 to
handle signals with full accuracy from ground to within 1 volt of
the positive supply. And the output can swing to within 1 volt of
the positive supply. Gain bandwidth is over 700 kHz. In addi-
tion to being easy to use, the AMP04 draws only 700 µA of
supply current.
For high resolution data acquisition systems, laser trimming of
low drift thin-film resistors limits the input offset voltage to
under 150 µV, and allows the AMP04 to offer gain nonlinearity
of 0.005% and a gain tempco of 30 ppm/°C.
A proprietary input structure limits input offset currents to
less than 5 nA with drift of only 8 pA/°C, allowing direct con-
nection of the AMP04 to high impedance transducers and
other signal sources.
FUNCTIONAL BLOCK DIAGRAM
IN(–)
IN(+)
R_GAIN
INPUT BUFFERS
100k⍀
V_OUT
11k⍀
11k⍀
100k⍀
REF
The AMP04 is specified over the extended industrial (–40°C to
+85°C) temperature range. AMP04s are available in plastic and
ceramic DIP plus SO-8 surface mount packages.
Contact your local sales office for MIL-STD-883 data sheet
and availability.
PIN CONNECTIONS
8-Lead Epoxy DIP
(P Suffix)
8-Lead Narrow-Body SO
(S Suffix)
R_GAIN 1
–IN 2
+IN 3
V– 4
AMP04
8 R_GAIN
7 V+
6 V_OUT
5 REF
R_GAIN
–IN
+IN
V–
AMP04
R_GAIN
V+
V_OUT
REF
REV. B
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© Analog Devices, Inc., 2000