High-Precision Isolation Amplifier - ISO124

ISO124 (ACTIVE)

High-Precision Isolation Amplifier

 

Recommended alternative parts

  • ISO122  -  0.02% Gain error nonlinearity compared to 0.01%.

Description

The ISO124 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 ISO124 is easy to use. No external components are required for operation. The key specifications are 0.010% maximum nonlinearity, 50-kHz signal bandwidth, and 200-µV/°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 ISO124 device ideal for a wide range of applications.

The ISO124 is available in SOIC-16 and SOIC-28 plastic surface-mount packages.

Features

  • 100% Tested for High-Voltage Breakdown
  • Rated 1500 Vrms
  • High IMR: 140 dB at 60 Hz
  • 0.010% Maximum Nonlinearity
  • Bipolar Operation: VO = ±10 V
  • DIP-16 and SO-28
  • Ease of Use: Fixed Unity Gain Configuration
  • ±4.5-V to ±18-V Supply Range

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Parametrics Compare all products in Isolated Amplifiers

 
Common Mode Rejection Ratio (Typ) (dB)
Isolation Working Voltage VIOWM (rms) (V)
Small Signal Bandwidth (Typ) (MHz)
Leakage Current at 240V/60Hz (Max) (uArms)
Gain Non-Linearity (+/-) (Max) (%)
Rating
Pin/Package
Operating Temperature Range (C)
Approx. Price (US$)
ISO124 ISO122
140    140   
1500    1500   
50    50   
0.5    0.5   
0.01    0.02   
Catalog    Catalog   
8PDIP
8SOIC   
8PDIP
8SOIC   
-25 to 85    -25 to 85   
8.72 | 1ku    11.39 | 1ku