®
INA
141
INA141
INA
141
Precision, Low Power, G = 10, 100
INSTRUMENTATION AMPLIFIER
FEATURES
q
LOW OFFSET VOLTAGE: 50
µ
V max
q
LOW DRIFT: 0.5
µ
V/
°
C max
q
ACCURATE GAIN:
±
0.05% at G = 10
q
LOW INPUT BIAS CURRENT: 5nA max
q
HIGH CMR: 117dB min
q
INPUTS PROTECTED TO
±
40V
q
WIDE SUPPLY RANGE:
±
2.25 to
±
18V
q
LOW QUIESCENT CURRENT: 750
µ
A
q
8-PIN PLASTIC DIP, SO-8
DESCRIPTION
The INA141 is a low power, general purpose instru-
mentation 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 INA141 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
current is only 750µA—ideal for battery operated
systems.
The INA141 is available in 8-pin plastic DIP, and
SO-8 surface-mount packages, specified for the –40°C
to +85°C temperature range.
APPLICATIONS
q
BRIDGE AMPLIFIER
q
THERMOCOUPLE AMPLIFIER
q
RTD SENSOR AMPLIFIER
q
MEDICAL INSTRUMENTATION
q
DATA ACQUISITION
V+
7
–
V
IN
2
Over-Voltage
Protection
252Ω
25kΩ
G = 10
or
G =100
5050Ω
8
252Ω
25kΩ
A
2
40kΩ
4
V–
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
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
®
INA141
A
1
40kΩ
40kΩ
1
A
3
6
V
O
5
40kΩ
V
IN
+
3
Over-Voltage
Protection
Ref
PDS-1297B
1
INA141
SBOS052
TI [ TEXAS INSTRUMENTS ]
