Isolated A/D Converters

As the world’s leading supplier of data converters, Analog Devices is constantly introducing new A/D converters (ADCs) that drive system architectures. In the motor control arena, ADI’s converters solve the challenges associated with current and voltage monitoring, optical encoder feedback, and resolver-to-digital conversion. The introduction of the isolated ADC with its 3.75 kV standoff voltage is one example of ADI’s breakthroughs in performance and integration to ease the burden of design.
Product Selection Table

Isolated A/D Converters

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SortOrderPart#ChannelsResolution
(bits)
Sample Rate
(max)
(SPS)
ADC SNR
(typ)
(dB)
INL in LSB
(typ)
(LSBs)
Device ArchitectureData Output InterfacePower
(typ)
(W)
CMTI
(min)
(V/us)
Working Voltage - VDE
(typ)
(V)
Insulation Rating
(V rms)
Price (1000+)
($ US)
1ADUM7703 1 16 78.1k 86 2 Sigma-Delta Modulator Isolated Serial 46m 150k 5k 5k $4.29 (ADUM7703-8BRIZ)
2ADUM7701 1 16 78.1k 86 2 Sigma-Delta Modulator Isolated Serial 46m 150k 5k 5k $3.73 (ADUM7701-8BRIZ)
3AD7402 1 16 10M 87 1 Sigma-Delta Modulator Isolated Serial 145m 25k 5000 5k $3.05 (AD7402-8BRIZ)
4AD7405 1 16 20M 88 2 Sigma-Delta Modulator Isolated Serial LVDS 208m 25k 5000 5k $3.35 (AD7405BRIZ)
5AD7403-8 1 16 20M 88 2 Sigma-Delta Modulator Isolated Serial 187m 25k 5000 5k $3.15 (AD7403-8BRIZ)
6ADE7913 2 24 8k 74- Sigma-Delta Isolated SPI 41.25m- 1.173k 5k $5.71 (ADE7913ARIZ)
7ADE7912 2 24 8k 74- Sigma-Delta Isolated SPI 41.25m- 1.173k 5k $5.42 (ADE7912ARIZ)
8AD7401AReference Circuit Available 1 16 20M 83 1.5 Sigma-Delta Modulator Isolated Serial 93.5m 25k 5000 5k $3.24 (AD7401AYRWZ)
9AD7400AReference Circuit Available 1 16 10M 80 2 Sigma-Delta Modulator Isolated Serial 65m 25k 5000 5k $3.14 (AD7400AYRWZ)
10AD7401 1 16 20M 82 2 Sigma-Delta Modulator Isolated Serial 73.2m 25k 5000 5k $3.35 (AD7401YRWZ)
11AD7400 1 16 10M 71 2 Sigma-Delta Modulator Isolated Serial 82m 25k 5000 5k $3.24 (AD7400YRWZ)