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Precision, Low Power Instrumentation Amplifier


Package | PIN: D | 8
Carrier: Partial Tube
Qty Price
1-9 $11.63
10-24 $10.81
25-99 $10.43
100-249 $9.11
250-499 $8.67
500-749 $7.98
750-999 $7.16
1000+ $7.14


  • Low Offset Voltage: 50-µV Maximum
  • Low Drift: 0.5-µV/°C Maximum
  • Low Input Bias Current: 5-nA Maximum
  • High CMR: 110-dB Minimum
  • Inputs Protected to ±40 V
  • Wide Supply Range: ±1.35 to ±18 V
  • Low Quiescent Current: 350-µA
  • 8-Pin Plastic DIP, SO-8

Texas Instruments  INA118U

The INA118 is a low-power, general-purpose instrumentation amplifier offering excellent accuracy. The device’s 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 (70 kHz at G = 100).

A single external resistor sets any gain from 1 to 10000. Internal input protection can withstand up to ±40 V without damage.

The INA118 is laser-trimmed for low offset voltage (50 µV), drift (0.5 µV/°C), and high common-mode rejection (110 dB at G = 1000). The INA118 operates with power supplies as low as ±1.35 V, and quiescent current is only 350 µA, making the device ideal for battery-operated systems.

The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, specified for the –40°C to +85°C temperature range.