Key facts
- Brand
- Analog Devices
- Model
- AD7946
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7946 ADC Datasheet
Datasheet 24 pages · 638 KB · EN
The AD7946 is a 14‑bit, charge‑redistribution successive‑approximation ADC that operates from a single 5 V supply. It offers a serial interface compatible with SPI, QSPI, MICROWIRE and DSP protocols, and supports optional daisy‑chaining and a BUSY indicator.
Key features include 500 kSPS throughput, no missing codes, low power dissipation (3.3 mW @ 5 V/100 kSPS), standby current of 1 nA, and operation over –40 °C to +85 °C. The device is available in 10‑lead MSOP and QFN (LFCSP) packages.
Analog Devices AD7946 specifications
| Resolution | 14 Bits |
|---|---|
| Throughput | 500 kSPS |
| Analog input range | 0 V to REF |
| Power dissipation (100 kSPS) | 3.3 mW @ 5 V |
| Standby current | 1 nA |
| Supply voltage (VDD) | 4.5 V to 5.5 V |
| Reference voltage range | 0.5 VDD + 0.3 V |
| Input bandwidth | 9 MHz |
| Aperture delay | 2.5 ns |
| Operating temperature range | –40 °C to +85 °C |
All Analog Devices AD7946 documents by type
Datasheet 2
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum sampling rate of the AD7946?
The AD7946 can sample at up to 500 kSPS.
What supply voltage does the AD7946 require?
It operates from a single supply of 4.5 V to 5.5 V (VDD).
What is the maximum sampling rate of the AD7946?
The AD7946 can sample at up to 500 kSPS.
What is the standby current of the AD7946?
The standby current is 1 nA.