AD7940 is a 14-bit, 100kSPS ADC with low power, high speed, 2.5V to 5.5V supply voltage, suitable for battery-powered systems, personal digital assistants, medical instruments, mobile communications, instrumentation and control systems, remote data acquisition systems and other applications
The AD7940 is a 14-bit, fast, low power, successive approximation analog-to-digital converter (ADC) designed for battery-powered systems. It operates from a single supply voltage ranging from 2.5 V to 5.5 V and features throughput rates up to 100 kSPS with no pipeline delays.
The device includes a low noise, wide bandwidth track-and-hold amplifier capable of handling input frequencies in excess of 7 MHz. It is available in 6-lead SOT-23 and 8-lead MSOP packages and utilizes an SPI/QSPI/MICROWIRE/DSP compatible serial interface for data acquisition.
| Resolution | 14 Bits min |
|---|---|
| Throughput Rate | 100 kSPS max |
| Signal-to-Noise + Distortion (SINAD) | 81 dB min |
| Full Power Bandwidth | 7 MHz typ @ -3dB |
| Operating Temperature Range (Commercial) | -40°C to +85°C |
The device features a throughput rate up to 100 kSPS.
The part has a standby mode with a maximum leakage current of 0.5 pA.
The device supports SPI, QSPI, MICROWIRE, and DSP compatible interfaces.