Key facts
- Brand
- Analog Devices
- Model
- AD7939
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Analog Devices AD7938/AD7939 Handbook
The AD7938 (12‑bit) and AD7939 (10‑bit) are high‑speed, low‑power, successive‑approximation ADCs with eight analog input channels and a built‑in sequencer. They operate from a single 2.7 V to 5.25 V supply, offer up to 1.5 MSPS throughput, and include an accurate on‑chip 2.5 V reference.
The handbook contains a functional block diagram, detailed specifications, timing parameters, absolute maximum ratings, pin‑out tables, power‑mode options, PCB design guidelines, and an ordering guide for the 32‑lead LFCSP and TQFP packages.
Analog Devices AD7939 specifications
| Throughput rate | 1.5 MSPS |
|---|---|
| Power consumption (3 V supply) | 6 mW max at 1.5 MSPS |
| Power consumption (5 V supply) | 13.5 mW max at 1.5 MSPS |
| Analog input channels | 8 channels with sequencer |
| On‑chip reference voltage | 2.5 V |
| SINAD | 70 dB at 50 kHz input |
| Resolution (AD7938) | 12 bits |
| Resolution (AD7939) | 10 bits |
All Analog Devices AD7939 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum throughput rate of the AD7938/AD7939?
The devices can sample at up to 1.5 MSPS.
How much power does the AD7938/AD7939 use at a 3 V supply?
It consumes up to 6 mW at 1.5 MSPS when powered from 3 V.
What is the maximum sampling rate of the AD7938/AD7939?
The devices can sample up to 1.5 MSPS.
How much power does the AD7938/AD7939 consume at a 3 V supply?
It consumes up to 6 mW at 1.5 MSPS when powered from 3 V.