Key facts
- Brand
- Analog Devices
- Model
- AD7942
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Analog Devices AD7942 Datasheet
The AD7942 is a 14‑bit charge‑redistribution SAR ADC that operates from a single supply of 2.3 V to 5.5 V. It offers a pseudo‑differential input range from 0 V to VDD, no missing codes, and a low‑noise, short‑aperture track‑and‑hold circuit. The device supports SPI, QSPI, Microwire and daisy‑chaining for multiple converters.
Typical applications include battery‑powered equipment, data acquisition, instrumentation, medical instruments and process control. The part is supplied in 10‑lead MSOP or QFN (LFCSP) packages and is rated for operation from –40 °C to +85 °C.
Analog Devices AD7942 specifications
| Resolution | 14 bits |
|---|---|
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| Throughput | 250 kSPS |
| Power Dissipation (2.5 V, 100 kSPS) | 1.25 mW |
| Standby Current | 1 nA |
| Input Voltage Range (IN+ – IN‑) | 0 V to VDD |
| Operating Temperature Range | -40 °C to +85 °C |
Source: Analog Devices AD7942 Datasheet
All Analog Devices AD7942 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the resolution of the AD7942?
The AD7942 provides a 14‑bit resolution with no missing codes.
What supply voltage range does the AD7942 support?
It operates from a single supply voltage between 2.3 V and 5.5 V.
What is the power‑supply voltage range for the AD7942?
The AD7942 operates from a single supply voltage (VDD) of 2.3 V to 5.5 V.
What is the standby current of the AD7942?
The standby current is specified as 1 nA.