Product details

Device type Voltage sensing Peak-to-peak input voltage range (V) 10 Working isolation voltage (VIOWM) (Vrms) 1500 Input offset (±) (max) (V) 0.05 Input offset drift (±) (typ) (V/°C) 0.0002 Rating Catalog Operating temperature range (°C) -25 to 85
Device type Voltage sensing Peak-to-peak input voltage range (V) 10 Working isolation voltage (VIOWM) (Vrms) 1500 Input offset (±) (max) (V) 0.05 Input offset drift (±) (typ) (V/°C) 0.0002 Rating Catalog Operating temperature range (°C) -25 to 85
PDIP (NVF) 8 188.047 mm² 20.005 x 9.4 SOIC (DVA) 8 184.907 mm² 17.9 x 10.33
  • 100% Tested for High-Voltage Breakdown
  • Rated 1500 Vrms
  • High IMR: 140 dB at 60 Hz
  • Bipolar Operation: VO = ±10 V
  • 16-Pin Plastic DIP and 28-Lead SOIC
  • Ease of Use: Fixed Unity Gain Configuration
  • 0.020% Maximum Nonlinearity
  • ±4.5-V to ±18-V Supply Range
  • 100% Tested for High-Voltage Breakdown
  • Rated 1500 Vrms
  • High IMR: 140 dB at 60 Hz
  • Bipolar Operation: VO = ±10 V
  • 16-Pin Plastic DIP and 28-Lead SOIC
  • Ease of Use: Fixed Unity Gain Configuration
  • 0.020% Maximum Nonlinearity
  • ±4.5-V to ±18-V Supply Range

The ISO122 is a precision isolation amplifier incorporating a novel duty cycle modulation-demodulation technique. The signal is transmitted digitally across a 2-pF differential capacitive barrier. With digital modulation the barrier characteristics do not affect signal integrity, thus resulting in excellent reliability and good high-frequency transient immunity across the barrier. Both barrier capacitors are imbedded in the plastic body of the package.

The ISO122 is easy to use. No external components are required for operation. The key specifications are 0.020% maximum nonlinearity, 50-kHz signal bandwidth, and 200-V/°C VOS drift. A power supply range of 4.5 V to 18 V and quiescent currents of 5 mA on VS1 and ±5.5 mA on VS2 make the ISO122 ideal for a wide range of applications.

The ISO122 is available in 16-pin plastic DIP and
28-lead plastic surface-mount packages.

The ISO122 is a precision isolation amplifier incorporating a novel duty cycle modulation-demodulation technique. The signal is transmitted digitally across a 2-pF differential capacitive barrier. With digital modulation the barrier characteristics do not affect signal integrity, thus resulting in excellent reliability and good high-frequency transient immunity across the barrier. Both barrier capacitors are imbedded in the plastic body of the package.

The ISO122 is easy to use. No external components are required for operation. The key specifications are 0.020% maximum nonlinearity, 50-kHz signal bandwidth, and 200-V/°C VOS drift. A power supply range of 4.5 V to 18 V and quiescent currents of 5 mA on VS1 and ±5.5 mA on VS2 make the ISO122 ideal for a wide range of applications.

The ISO122 is available in 16-pin plastic DIP and
28-lead plastic surface-mount packages.

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Technical documentation

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Type Title Date
* Data sheet ISO122 Precision Lowest-Cost Isolation Amplifier datasheet (Rev. A) PDF | HTML 23 Jan 2015
Application brief Shunt Resistor Selection for Isolated Data Converters PDF | HTML 04 May 2023
White paper Comparing isolated amplifiers and isolated modulators (Rev. A) 28 Feb 2019
Application note Boost ISO120 Bandwidth to More Than 100kHz 27 Sep 2000
Application note IC Building Blocks Form Complete Isolated 4-20mA Current-Loop 27 Sep 2000
Application note Noise Sources In Applications Using Capacitive Coupled Isolated Amplifier 27 Sep 2000
Application note Simple Output Filter Eliminates ISO Amp Output Ripple And Keeps Full Bandwidth 27 Sep 2000
Application note Single Supply 4-20mA Current Loop Receiver 27 Sep 2000
Application note Single-Supply Operation of Isolation Amplifiers 27 Sep 2000

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PDIP (NVF) 8 View options
SOIC (DVA) 8 View options

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