AMP04 Datasheet, PDF (1/16 Pages) Analog Devices – Precision Single Supply Instrumentation Amplifier

a
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-Pin 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 sup-
ply 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 connection
of the AMP04 to high impedance transducers and other signal
sources.
*Protected by U.S. Patent No. 5,075,633.
FUNCTIONAL BLOCK DIAGRAM
100k
IN(–) 2
1
INPUT BUFFERS
IN(+) 3
R _GAIN
8
11k
11k
100k
5 REF
V_OUT
6
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
AMP-04
8 R_GAIN
7 V+
6 V_OUT
5 REF
R_GAIN
–IN
+IN
V–
AMP-04
R_GAIN
V+
V_OUT
REF
REV. A
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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
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