ISO124 (ACTIVE)

Precision Lowest Cost Isolation Amplifier

 

Recommended alternative parts

  • ISO122  -  0.02% Gain error nonlinearity compared to 0.01%.
  • ISO721  -  Digital isolation amplfier instead of analog.

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 ±n;18 V and quiescent currents of ±5 mA on VS1 and ±5.5 mA on VS2 make the ISO124 ideal for a wide range of applications.

The ISO124 is available in PDIP-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 Amplifier

 
Common Mode Rejection Ratio (Typ) (dB)
Isolation Working Voltage VIOWM (rms) (V)
Isolation Transient Overvoltage VIOTM (Peak) (V)
Small Signal Bandwidth (Typ) (kHz)
Leakage Current at 240V/60Hz (Max) (uArms)
Gain Non-Linearity (+/-) (Max) (%)
CMTI (Min) (kV/µs)
Rating
Pin/Package
Operating Temperature Range (C)
Approx. Price (US$)
ISO124 AMC1100 AMC1200 AMC1200-Q1 AMC1301 ISO121 ISO122
140     108     108     108     92     115     140    
1500     800     800     800     1000     3500     1500    
  4250     4250     4250     7000        
50     100     100     100     210     60     50    
0.5             0.5     0.5    
0.01     0.075%     0.075     0.075     0.03     0.01     0.02    
  2.5     10     10     15        
Catalog     Catalog     Catalog     Automotive     Catalog     Catalog     Catalog    
8PDIP
8SOIC    
8SOIC
8SOP    
8SOIC
8SOP    
8SOIC
8SOP    
8SOIC     16CDIP SB     8PDIP
8SOIC    
-25 to 85     -40 to 105     -40 to 105     -40 to 105     -40 to 125     -55 to 125     -25 to 85    
8.72 | 1ku     2.00 | 1ku     2.20 | 1ku     2.60 | 1ku     2.90 | 1ku     109.70 | 1ku     11.39 | 1ku