a
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
Precision Single Supply
Instrumentation Amplifier
AMP04
FUNCTIONAL BLOCK DIAGRAM
100k⍀
RGAIN
IN(–)
11k⍀
11k⍀
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 consumption, 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 addition to being easy to use, the AMP04 draws only 700 µA of
supply current.
VOUT
INPUT BUFFERS
IN(+)
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)
RGAIN 1
–IN 2
8 RGAIN
AMP04
8-Lead Narrow-Body SO
(S Suffix)
RGAIN
RGAIN
7 V+
–IN
+IN 3
6 VOUT
+IN
VOUT
V– 4
5 REF
V–
REF
AMP04
V+
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.
REV. B
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., 2000
