Isolation Amplifiers

Isolation Amplifiers provide power supply designers with a higher performing, single chip alternative to isolation techniques based on optocouplers and shunt regulators. Analog Devices ADuM3190 and ADuM4190 isolated error amplifiers have a 400 kHz bandwidth, with 0.5% typical initial accuracy at 25°C and 1% total accuracy over the extended temperature range of –40?C to +125?C. This provides manufacturers of ac-to-dc and dc-to-dc power supplies with a significant upgrade in speed and operating temperature range, as well as a 5× improvement in transient response.

Product Selection Table

Isolation Amplifiers

  Hold Shift Key for secondary sorting
SortOrderPart## of ChannelsBW -3 dB
(typ)
(Hz)
Insulation Rating
(V rms)
Gain
(min)
(V/V)
Gain
(max)
(V/V)
Nonlinearity %
(typ)
(%)
Vs span
(min)
(V)
Vs span
(max)
(V)
Vs TypePrice (1000+)
($ US)
1ADUM3190S 1 400k 500 0.83 2.7 0.7 3 20 Single-
2ADUM4190Reference Circuit Available 1 400k 5k 0.83 2.7 1 3 20 Single $1.20 (ADUM4190ARIZ)
3ADUM3190Reference Circuit Available 1 400k 2.5k 0.9 2.86 1 3 20 Single $1.04 (ADUM3190ARQZ)
4AD215 2 120k 1500 1 100 0.01 28.5 34 Dual $48.94 (AD215AY)
5AD203 2 10k 1500 1 10 0.025 12 16 Single $140.40 (AD203SN)
6AD210 3 20k 2500 1 100 0.012 13.5 16.5 Single $68.95 (AD210JN)
7AD204 2 5k 1500 1 100 0.025 13.5 16.5 Single $44.84 (AD204JY)
8AD202 2 5k 1500 1 100 0.025 13.5 16.5 Single $48.74 (AD202JY)