Key facts
- Brand
- Analog Devices
- Model
- AD7401A
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
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Analog Devices AD7401A Isolated Sigma‑Delta Modulator Datasheet
The AD7401A is a second‑order sigma‑delta modulator that converts an analog input into a high‑speed 1‑bit data stream. It operates from a 5 V supply, provides on‑chip digital isolation, and includes an internal reference. The device is offered in a 16‑lead SOIC package and is rated for –40 °C to +125 °C.
Key features include a 20 MHz maximum external clock rate, 16‑bit resolution with no missing codes, ±250 mV input range, and reinforced isolation up to 5000 V rms for 1 minute. The datasheet provides detailed specifications, timing diagrams, safety ratings, and ordering information.
Analog Devices AD7401A specifications
| Resolution | 16 Bits |
|---|---|
| Maximum external clock rate | 20 MHz |
| Input voltage range | ±250 mV (full scale ±320 mV) |
| Power consumption | 17 mA typical at 5.5 V |
| Isolation voltage | 5000 V rms for 1 minute (UL 1577) |
| Operating temperature range | –40 °C to +125 °C |
Source: Analog Devices AD7401A Isolated Sigma‑Delta Modulator Datasheet
All Analog Devices AD7401A documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum external clock rate of the AD7401A?
The AD7401A supports up to a 20 MHz external clock rate.
From: Analog Devices AD7401A Isolated Sigma‑Delta Modulator Datasheet
What isolation voltage does the AD7401A provide?
It is rated for 5000 V rms isolation for 1 minute according to UL 1577.
From: Analog Devices AD7401A Isolated Sigma‑Delta Modulator Datasheet
What is the maximum external clock rate for the AD7401A?
The AD7401A supports up to 20 MHz external clock rate.
What isolation voltage does the AD7401A meet according to UL standards?
It meets 3750 Vrms isolation for 1 minute as required by UL 1577.