INA141U2K5 Datasheet, PDF (1/14 Pages) Texas Instruments – Precision, Low Power, G = 10, 100 INSTRUMENTATION AMPLIFIER

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INA141
INA141
INA141
SBOS052
Precision, Low Power, G = 10, 100
INSTRUMENTATION AMPLIFIER
FEATURES
q LOW OFFSET VOLTAGE: 50µV max
q LOW DRIFT: 0.5µV/°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: 750µA
q 8-PIN PLASTIC DIP, SO-8
APPLICATIONS
q BRIDGE AMPLIFIER
q THERMOCOUPLE AMPLIFIER
q RTD SENSOR AMPLIFIER
q MEDICAL INSTRUMENTATION
q DATA ACQUISITION
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.
V+
7
V_I^–_N
2
1
G = 10
or
G =100
8
Over-Voltage
Protection
252Ω
5050Ω
252Ω
V_I⁺_N
3
Over-Voltage
Protection
A₁
25kΩ
25kΩ
A₂
INA141
40kΩ
40kΩ
A₃
40kΩ
4
V–
40kΩ
6
V_O
5
Ref
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Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
PDS-1₁297B
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INA141