INA118 

Precision, Low Power INSTRUMENTATION AMPLIFIER. 

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

A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.

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

FEATURES of INA118

• LOW OFFSET VOLTAGE: 50µV max
  
• LOW DRIFT: 0.5µV/°C max
  
• LOW INPUT BIAS CURRENT: 5nA max
  
• HIGH CMR: 110dB min
  
• INPUTS PROTECTED TO ±40V
  
• WIDE SUPPLY RANGE: ±1.35 to ±18V
  
• LOW QUIESCENT CURRENT: 350µA
  
• 8-PIN PLASTIC DIP

APPLICATIONS of INA118 Instrumentation Amplifier

• BRIDGE AMPLIFIER
  
• THERMOCOUPLE AMPLIFIER
  
• RTD SENSOR AMPLIFIER
  
• MEDICAL INSTRUMENTATION
  
• DATA ACQUISITION