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).
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.
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.
Packages are 16-pin plastic DIP, and SOL-16
surface-mount, specified for the –40°C to +85°C
temperature range.
V+
V
INA
–
APPLICATIONS
q
SENSOR AMPLIFIER
THERMOCOUPLE, RTD, BRIDGE
q
MEDICAL INSTRUMENTATION
q
MULTIPLE CHANNEL SYSTEMS
9
INA2141
7
1
3
Over-Voltage
Protection
252Ω
A1A
40kΩ
25kΩ
40kΩ
A3A
25kΩ
A2A
40kΩ
40kΩ
G = 10
or
100
4
2
5050Ω
252Ω
6
V
OA
5
+
V
INA
–
Over-Voltage
Protection
Over-Voltage
Protection
252Ω
Ref
V
INB
16
14
A1B
40kΩ
25kΩ
40kΩ
A3B
25kΩ
10
G = 10
or
100
13
15
5050Ω
252Ω
A2B
40kΩ
8
V–
11
12
V
OB
+
V
INB
Over-Voltage
Protection
Ref
40kΩ
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
NOTE: (1) Input common-mode range varies with output voltage—see typical curves. (2) Guaranteed by wafer test.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
INA2141
2
PIN CONFIGURATION
Top View
DIP
SOL-16
–
V
INA
+
V
INA
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
(1)
180
180
211
211
TEMPERATURE
RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
1
2
3
4
5
6
7
8
–
16 V
INB
+
15 V
INB
J
A
J
A
Ref
A
V
OA
Sense
A
V–
14 J
B
13 J
B
12 Ref
B
11 V
OB
10 Sense
B
9
V+
PRODUCT
INA2141PA
INA2141P
INA2141UA
INA2141U
PACKAGE
16-Pin Plastic DIP
16-Pin Plastic DIP
SOL-16 Surface-Mount
SOL-16 Surface-Mount
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..................................................................................
±18V
Analog Input Voltage Range .............................................................