The AD7949-EP is a high-performance, low-power analog switch array (SAR) ADC that is suitable for high-precision, low-noise, high-resolution analog signal measurement applications.
The AD7949-EP is a charge redistribution successive approximation register (SAR) ADC designed for multichannel, low-power data acquisition systems. It features an 8-channel multiplexer capable of single-ended or differential inputs and includes internal reference options and a temperature sensor.
The device operates from a single power supply ranging from 2.3 V to 5.5 V with a logic interface compatible with SPI, MICROWIRE, QSPI, and DSP protocols. It is housed in a compact 20-lead LFCSP package and supports military temperature ranges from -55°C to +125°C.
| Resolution | 14 Bits |
|---|---|
| Channels | 8-channel multiplexer |
| Throughput Rate | 250 kSPS |
| Power Supply Range | 2.3 V to 5.5 V |
| Temperature Range | -55°C to +125°C |
| Package Type | 20-lead LFCSP |
The device provides a 14-bit resolution with no missing codes.
Yes, it supports differential (GND sense) and pseudobipolar input configurations.
The device offers internal selectable 2.5 V or 4.096 V references, as well as external buffered or unbuffered inputs.