Precision, Low Power Instrumentation Amplifier - INA118

INA118 (ACTIVE)

Precision, Low Power Instrumentation Amplifier

 

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Description

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.

Features

  • 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

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Parametrics Compare all products in Instrumentation Amplifiers

 
Number of Channels (#)
Vs (Min) (V)
Vs (Max) (V)
CMRR (Min) (dB)
Input Offset (+/-) (Max) (uV)
Input Offset Drift (+/-) (Max) (uV/Degrees Celsius)
Input Bias Current (+/-) (Max) (nA)
Noise at 1kHz (Typ) (nV/rt(Hz))
Iq (Typ) (mA)
Bandwidth at Min Gain (Typ) (MHz)
Gain (Min) (V/V)
Gain (Max) (V/V)
Gain Error (+/-) (Max) (%)
Rating
Operating Temperature Range (C)
Package Group
Approx. Price (US$)
Package Size: mm2:W x L (PKG)
Noise at 0.1 Hz - 10 Hz (Typ) (uVpp)
Gain Non-Linearity (+/-) (Max) (%)
INA118
1   
2.7   
36   
107   
50   
0.5   
5   
10   
0.35   
0.8   
1   
10000   
1   
Catalog   
-40 to 85   
PDIP
SOIC   
4.80 | 1ku   
See datasheet (PDIP)   
0.28   
0.002