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TI INA121U/2K5 product image
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TI INA121U/2K5

Manufacturer
TI
MPN
INA121U/2K5
LCSC Part #
C2057413
Packaging
SOIC-8
Customer #
Key Attributes
FET Input Low-Power Instrumentation Amplifier
DatasheetTI INA121U/2K5
RoHS Compliance2 documents available
In-Stock: 8
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QtyUnit PriceTotal Amount
1+$ 13.7472$ 13.75
10+$ 11.9027$ 119.03
30+$ 10.7781$ 323.34
100+$ 9.8346$ 983.46
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Instrumentation, Op Amps, Buffer Amps
ManufacturerTI
PackagingSOIC-8
Settling time20us
Output Current14mA
Number of Channels1
Vos - Input Offset Voltage200uV
Slew Rate0.7V/us
Input Offset Current(Ios)0.5pA
Operating Temperature-40℃~+85℃
Common Mode Rejection Ratio(CMRR)106dB
Ib - Input Bias Current4pA
Input Offset Voltage Drift(Vos TC)2uV/℃
-3dB Bandwidth-
Quiescent Current450uA
FeaturesExternal resistor gain;Overvoltage protection
Input Voltage Noise Density20nV/√Hz@1kHz
Dual Supply-18V~-2.25V;2.25V~18V
Rail to Rail-
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Introduction

AI Translation

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 (±200μV), low offset drift (±2μV/°C), 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 450μA. Package options include 8-pin plastic DIP and SO-8 surface mount. All are specified for the -40°C to +85°C industrial temperature range.

Features

AI Translation
  • LOW BIAS CURRENT: ±4pA
  • LOW QUIESCENT CURRENT: ±450μA
  • LOW INPUT OFFSET VOLTAGE: ±200μV
  • LOW INPUT OFFSET DRIFT: ±2μV/°C
  • LOW INPUT NOISE: 20nV/√Hz 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

Applications

AI Translation
  • 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