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3 kV RMS Dual Channel Digital Isolators
| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 3.0 | - | 5.5 | V | Operating supply voltage |
| Isolation Voltage | VIORM | - | - | 2.5 | kV | Maximum repetitive peak isolation voltage |
| Propagation Delay | tPD | 14 | - | 20 | ns | Propagation delay from input to output |
| Pulse Width Distortion | tPWD | -1 | - | +1 | ns | Difference in propagation delay between channels |
| Common Mode Transient Immunity | CMTI | - | 25 | - | kV/渭s | Rate of change of common-mode voltage that can be tolerated without causing errors |
| Data Rate | fDATA | - | - | 150 | Mbps | Maximum data rate |
| Power Consumption | IDD | - | 9 | - | mA | Quiescent supply current per channel |
| Channel-to-Channel Crosstalk | CTCT | - | - | -65 | dB | Attenuation of signal from one channel to another |
Instructions for ADUM1281ARZ:
- Power Supply: Ensure the supply voltage (VDD) is within the specified range of 3.0V to 5.5V.
- Isolation Considerations: Do not exceed the maximum isolation voltage (VIORM) of 2.5kV to prevent damage.
- Signal Integrity: Account for a propagation delay (tPD) of 14ns to 20ns when designing timing-critical applications.
- Common Mode Transient Immunity: The device supports a CMTI of up to 25kV/渭s, which should be considered in noisy environments.
- Data Transmission: For optimal performance, keep the data rate (fDATA) under 150Mbps.
- Power Management: Monitor power consumption; each channel consumes approximately 9mA at quiescent state.
- Crosstalk Mitigation: Design layouts to minimize channel-to-channel crosstalk, noting the attenuation of at least 65dB.
For detailed specifications and application notes, refer to the official Analog Devices datasheet for the ADUM1281ARZ.
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