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AMP01GBC

Description
INSTRUMENTATION AMPLIFIER, CDIP18
Categoryaccessories   
File Size484KB,29 Pages
ManufacturerADI
Websitehttps://www.analog.com
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AMP01GBC Overview

INSTRUMENTATION AMPLIFIER, CDIP18

Data Sheet
FEATURES
Low offset voltage: 50 μV maximum
Very low offset voltage drift: 0.3 μV/°C maximum
Low noise: 0.12 μV p-p (0.1 Hz to 10 Hz)
Excellent output drive: ±10 V at
±50
mA
Capacitive load stability: up to 1 μF
Gain range: 0.1 to 10,000
Excellent linearity: 16-bit at G = 1000
High CMR: 125 dB minimum (G = 1000)
Low bias current: 4 nA maximum
Can be configured as a precision op amp
Output-stage thermal shutdown
Available in die form
Low Noise, Precision
Instrumentation Amplifier
AMP01
Input offset voltage is very low (20 μV), which generally
eliminates the external null potentiometer. Temperature changes
have minimal effect on offset; TCV
IOS
is typically 0.15 μV/°C.
Excellent low frequency noise performance is achieved with a
minimal compromise on input protection. The bias current is
very low, less than 10 nA over the military temperature range.
High common-mode rejection of 130 dB, 16-bit linearity at a
gain of 1000, and 50 mA peak output current are achievable
simultaneously. This combination takes the instrumentation
amplifier one step further towards the ideal amplifier.
AC performance complements the superb dc specifications. The
AMP01
slews at 4.5 V/μs into capacitive loads of up to 15 nF, settles
in 50 μs to 0.01% at a gain of 1000, and boasts a healthy 26 MHz
gain bandwidth product. These features make the
AMP01
ideal
for high speed data acquisition systems.
The gain is set by the ratio of two external resistors over a range of
0.1 to 10,000. A very low gain temperature coefficient of 10 ppm/°C
is achievable over the whole gain range. Output voltage swing is
guaranteed with three load resistances: 50 Ω, 500 Ω, and 2 kΩ.
Loaded with 500 Ω, the output delivers ±13.0 V minimum. A
thermal shutdown circuit prevents destruction of the output
transistors during overload conditions.
The
AMP01
can also be configured as a high performance
operational amplifier. In many applications, the
AMP01
can be
used in place of op amp/power buffer combinations.
GENERAL DESCRIPTION
The
AMP01
1
is a monolithic instrumentation amplifier
designed for high-precision data acquisition and instrumen-
tation applications. The design combines the conventional
features of an instrumentation amplifier with a high current
output stage. The output remains stable with high capacitance
loads (1 μF), a unique ability for an instrumentation amplifier.
Consequently, the
AMP01
can amplify low level signals for
transmission through long cables without requiring an output
buffer. The output stage can be configured as a voltage or
current generator.
FUNCTIONAL BLOCK DIAGRAM
V+
V
IOS
NULL
A1
–IN
+IN
REFERENCE
R1
47.5kΩ
A2
R
S
R2
2.5kΩ
V
OOS
NULL
R4
2.5kΩ
V–
R
G
A3
R3
47.5kΩ
250Ω
250Ω
Q1
Q2
+V
OP
OUTPUT
–V
OP
SENSE
Figure 1.
1
Protected under U.S. Patents 4,471,321 and 4,503,381.
Document Feedback
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©1999–2017 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
14335-004

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