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INA121

Features: `LOW BIAS CURRENT: ±4pA`LOW QUIESCENT CURRENT: ±450mA`LOW INPUT OFFSET VOLTAGE: ±200mV`LOW INPUT OFFSET DRIFT: ±2V/°C`LOW INPUT NOISE: 20nVHz at f = 1kHz (G =100)`HIGH CMR: 106dB`WIDE SUPPLY RANGE: ±2.25V to ±18V`LOW NONLINEARITY ERROR: 0.001% max`INPUT PROTECTION TO ±40V`8-PIN DIP AND S...

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SeekIC No. : 004375360 Detail

INA121: Features: `LOW BIAS CURRENT: ±4pA`LOW QUIESCENT CURRENT: ±450mA`LOW INPUT OFFSET VOLTAGE: ±200mV`LOW INPUT OFFSET DRIFT: ±2V/°C`LOW INPUT NOISE: 20nVHz at f = 1kHz (G =100)`HIGH CMR: 106dB`WIDE SUPP...

INA121 Data Sheet

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Part Number:
INA121
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

`LOW BIAS CURRENT: ±4pA
`LOW QUIESCENT CURRENT: ±450mA
`LOW INPUT OFFSET VOLTAGE: ±200mV
`LOW INPUT OFFSET DRIFT: ±2V/°C
`LOW INPUT NOISE:
   20nVHz at f = 1kHz (G =100)
`HIGH CMR: 106dB
`WIDE SUPPLY RANGE: ±2.25V to ±18V
`LOW NONLINEARITY ERROR: 0.001% max
`INPUT PROTECTION TO ±40V
`8-PIN DIP AND SO-8 SURFACE MOUNT


Application

·LOW-LEVEL TRANSDUCER AMPLIFIERS Bridge, RTD, Thermocouple
·PHYSIOLOGICAL AMPLIFIERS ECG, EEG, EMG, Respiratory
·HIGH IMPEDANCE TRANSDUCERS
·CAPACITIVE SENSORS
·MULTI-CHANNEL DATA ACQUISITION
·PORTABLE, BATTERY OPERATED SYSTEMS
·GENERAL PURPOSE INSTRUMENTATION


Pinout

Connection Diagram


Specifications

Supply Voltage ..................................................................................±18V
Analog Input Voltage Range .............................................................±40V
Output Short-Circuit (to ground) ..............................................Continuous
Operating Temperature ................................................. 55 to +125
Storage Temperature..................................................... 55 to +125
Junction Temperature ....................................................................+150
Lead Temperature (soldering, 10s) ...............................................+300

NOTE: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may degrade device reliability.


Description

The INA121 is a FET-input, low power instrumentation amplifier offering excellent accuracy. Its versatile three-op amp design and very small size make it ideal for a variety of general purpose applications. Low bias current (±4pA) allows use with high impedance sources.

Gain can be set from 1V to 10,000V/V with a single external resistor. Internal input protection can withstand up to ±40V without damage.

The INA121 is laser-trimmed for very low offset voltage (±200V), low offset drift (±2V/), and high common-mode rejection (106dB at G = 100). It operates on power supplies as low as ±2.25V (+4.5V), allowing use in battery operated and single 5V systems.  Quiescent current is only 450mA.

Package options of the INA121 include 8-pin plastic DIP and SO-8 surface mount. All are specified for the 40 to +85 industrial temperature range.




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