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.
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Isolated A/D Converters
| SortOrder | Part# | Channels | Resolution (bits) | Sample Rate (max) (SPS) | ADC SNR (typ) (dB) | CMTI (min) (V/us) | Working Voltage - VDE (typ) (V) | Insulation Rating (V rms) | Data Output Interface | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ADUM7703 | 1 | 16 | 78.1k | 86 | 150k | 5k | 5k | Serial | $4.29 (ADUM7703-8BRIZ) |
| 2 | ADUM7701 | 1 | 16 | 78.1k | 86 | 150k | 5k | 5k | Serial | $3.73 (ADUM7701-8BRIZ) |
| 3 | LTM2893-1 | 0 | - | - | - | 50k | - | 6k | Serial SPI | $8.95 (LTM2893CY-1#PBF) |
| 4 | LTM2893 | 0 | - | - | - | 50k | - | 6k | Serial SPI | $8.95 (LTM2893CY#PBF) |
| 5 | AD7402 | 1 | 16 | 10M | 87 | 25k | 5000 | 5k | Serial SPI | $3.05 (AD7402-8BRIZ) |
| 6 | AD7405 | 1 | 16 | 20M | 88 | 25k | 5000 | 5k | Serial LVDS | $3.35 (AD7405BRIZ) |
| 7 | AD7403-8 | 1 | 16 | 20M | 88 | 25k | 5000 | 5k | Serial SPI | $3.15 (AD7403-8BRIZ) |
| 8 | ADE7913 | 2 | 24 | 8k | 74 | - | - | 5k | Serial SPI | $5.71 (ADE7913ARIZ) |
| 9 | ADE7912 | 2 | 24 | 8k | 74 | - | - | 5k | Serial SPI | $5.42 (ADE7912ARIZ) |
| 10 | AD7401A | 1 | 16 | 20M | 83 | 25k | 5000 | 5k | Serial | $3.24 (AD7401AYRWZ) |
| 11 | AD7400A | 1 | 16 | 10M | 80 | 25k | 5000 | 5k | Serial | $3.14 (AD7400AYRWZ) |
| 12 | AD7401 | 1 | 16 | 20M | 82 | 25k | 5000 | 5k | Serial | $3.35 (AD7401YRWZ) |
| 13 | AD7400 | 1 | 16 | 10M | 71 | 25k | 5000 | 5k | Serial | $3.24 (AD7400YRWZ) |
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