INA2141
®
INA2141
INA2141
Dual, Low Power, G = 10, 100
INSTRUMENTATION AMPLIFIER
DESCRIPTION
FEATURES
The INA2141 is a low power, dual instrumentation
amplifier offering excellent accuracy. Its versatile
3-op amp design and small size make it ideal for a
wide range of applications. Current-feedback input
circuitry provides wide bandwidth even at high gain
(200kHz at G = 100).
● LOW OFFSET VOLTAGE: 50µV max
● LOW DRIFT: 0.5µV/°C max
● EXCELLENT GAIN ACCURACY:
±0.05% max at G = 10
● LOW INPUT BIAS CURRENT: 5nA max
● HIGH CMR: 117dB min (G = 100)
● INPUTS PROTECTED TO ±40V
Simple pin connections set an accurate gain of 10 or
100V/V without external resistors. Internal input pro-
tection can withstand up to ±40V without damage.
● WIDE SUPPLY RANGE: ±2.25V to ±18V
● LOW QUIESCENT CURRENT: 750µA/IA
● 16-PIN PLASTIC DIP, SOL-16
The INA2141 is laser trimmed for very low offset
voltage (50µV), drift (0.5µV/°C) and high common-
mode rejection (117dB at G = 100). It operates with
power supplies as low as ±2.25V, and quiescent cur-
rent is only 750µA per amplifier—ideal for battery
operated systems.
APPLICATIONS
● SENSOR AMPLIFIER
Packages are 16-pin plastic DIP, and SOL-16
surface-mount, specified for the –40°C to +85°C
temperature range.
THERMOCOUPLE, RTD, BRIDGE
● MEDICAL INSTRUMENTATION
● MULTIPLE CHANNEL SYSTEMS
V+
9
–
INA
INA2141
1
3
Over-Voltage
Protection
V
7
A
1A
40kΩ
40kΩ
252Ω
25kΩ
G = 10
or
100
6
5
A
V
5050Ω
252Ω
3A
OA
4
2
25kΩ
A
A
Ref
2A
+
INA
Over-Voltage
Protection
V
V
40kΩ
40kΩ
40kΩ
–
INB
16 Over-Voltage
Protection
10
1B
25kΩ
40kΩ
252Ω
14
G = 10
or
100
A
3B
V
5050Ω
252Ω
OB
11
12
13
25kΩ
A
Ref
2B
+
INB
15 Over-Voltage
Protection
V
40kΩ
40kΩ
8
V–
International Airport Industrial Park
•
Mailing Address: PO Box 11400, Tucson, AZ 85734
FAXLine: (800) 548-6133 (US/Canada Only)
• Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/
•
•
Cable: BBRCORP
•
Telex: 066-6491
•
FAX: (520) 889-1510
•
Immediate Product Info: (800) 548-6132
©1995 Burr-Brown Corporation
PDS-1244C
Printed in U.S.A. January, 1996