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INA118 Low Power Instrumentation Amplifier IC DIP-8 Package

948.00 + GST

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The INA118 is a low-power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile, three op amp design and small size make this device an excellent choice 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 this device an excellent choice for battery-operated systems. The INA118 is available in 8-pin plastic DIP and SO-8 surface-mount packages, and specified for the –40°C to +85°C temperature range. The upgraded INA818 offers a lower input stage offset voltage (35 µV, maximum), lower input bias current (0.5 nA maximum) and lower noise (8 nV/√Hz) at the same quiescent current. See the Device Comparison Table for a selection of precision instrumentation amplifiers from Texas Instruments.


• A newer version of this device is now available: INA818

• 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

• Packages: 8-Pin plastic DIP, SO-8


Parameter Min Max Unit
 Supply Voltage ±18 V
Analog input voltage ±40 V
Output short-circuit (to ground) Continuous
Operating temperature -40 125 °C
Junction temperature 150 °C
Junction temperature 150 °C Lead temperature 300 °C
Storage temperature -40 125 °C


* product image for illustration purposes only. actual product may vary.


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