Усилители с гальванической развязкой

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.

Таблица выбора продукта

Isolation Amplifiers

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SortOrderPart## of ChannelsBW -3 dB
(typ)
(Hz)
Insulation Rating
(V rms)
Gain
(min)
(V/V)
Gain
(max)
(V/V)
Nonlinearity %
(typ)
(%)
Temp RangeVs span
(max)
(V)
Vs span
(min)
(V)
Vs TypeUS Price 1000 to 4999
($ US)
1ADUM4190Reference Circuit Available 1 400k 5k 0.83 2.7 1 -55 to 125°C 20 3 Single $1.20
2ADUM3190Reference Circuit Available 1 400k 2.5k 0.9 2.86 1 -40 to 125°C 20 3 Single $1.04
3AD215 2 120k 1500 1 100 0.01 -40 to 85°C 34 28.5 Dual $48.94
4AD208 2 4k 1500 1 1000 0.0125 -40 to 85°C-- Single $82.50
5AD203 2 10k 1500 1 10 0.025 -55 to 125°C 16 12 Single $105.40
6AD210 3 20k 2500 1 100 0.012 -25 to 85°C 16.5 13.5 Single $52.63
7AD204 2 5k 1500 1 100 0.025 0 to 70°C 16.5 13.5 Single $30.34
8AD202 2 5k 1500 1 100 0.025 0 to 70°C 16.5 13.5 Single $33.73

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