Document
INA110
INA110
INA110
SBOS147A – SEPTEMBER 1986 – JULY 2005
Fast-Settling FET-Input INSTRUMENTATION AMPLIFIER
FEATURES
q LOW BIAS CURRENT: 50pA max q FAST SETTLING: 4µs to 0.01% q HIGH CMR: 106dB min; 90dB at 10kHz q INTERNAL GAINS: 1, 10, 100, 200, 500 q VERY LOW GAIN DRIFT: 10 to 50ppm/°C q LOW OFFSET DRIFT: 2µV/°C q LOW COST q PINOUT SIMILAR TO AD524 AND AD624
APPLICATIONS
q MULTIPLEXED INPUT DATA ACQUISITION SYSTEM
q FAST DIFFERENTIAL PULSE AMPLIFIER q HIGH SPEED GAIN BLOCK q AMPLIFICATION OF HIGH IMPEDANCE
SOURCES
DESCRIPTION
The INA110 is a versatile monolithic FET-input instrumentation amplifier. Its current-feedback circuit topology and laser trimmed input stage provide excellent dynamic performance and accuracy. The INA110 settles in 4µs to 0.01%, making it ideal for high speed or multiplexed-input data acquisition systems.
Internal gain-set resistors are provided for gains of 1, 10, 100, 200, and 500V/V. Inputs are protected for differential and common-mode voltages up to ±VCC. Its very high input impedance and low input bias current make the INA110 ideal for applications requiring input filters or input protection circuitry.
The INA110 is available in 16-pin plastic and ceramic DIPs, and in the SOL-16 surface-mount package. Military, industrial and commercial temperature range grades are available.
–In X 10
FET 1 Input
13 4.44kΩ
12 404Ω X 100
(1)
16 201Ω
X 200
11 80.2Ω X 500
INA110 10kΩ
A1
20kΩ
20kΩ
10kΩ
10 Sense
9
A3
Output
3 RG
A2 2 +In
FET Input
45
Input Offset Adjust
10kΩ
8 +VCC
7 –VCC
10kΩ
6 Ref
14 15
Output Offset Adjust
NOTE: (1) Connect to RG for desired gain.
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PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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Copyright © 1986-2005, Texas Instruments Incorporated
ABSOLUTE MAXIMUM RATINGS(1)
Supply Voltage .................................................................................. ±18V Input Voltage Range .......................................................................... ±VCC Operating Temperature Range: G .................................. –55°C to +125°C
P, U ............................... –25°C to +85°C Storage Temperature Range: G ..................................... –65°C to +150°C
P, U ................................... –40°C to +85°C Lead Temperature (soldering, 10s): G, P ...................................... +300°C
(soldering, 3s): U ............................................ +260°C Output Short Circuit Duration ............................... Continuous to Common
NOTE: (1) Stresses above these ratings may.