This data sheet introduces the characteristics of AD7193 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA.
The AD7193 is a low‑noise, 24‑bit sigma‑delta analog‑to‑digital converter designed for high‑precision measurement applications. It offers four differential or eight pseudo‑differential input channels, a programmable gain amplifier (1‑128), and a flexible digital filter with fast‑settling and zero‑latency options.
The device operates from a 3 V to 5.25 V supply, consumes 4.65 mA, and is available in 28‑lead TSSOP and 32‑lead LFCSP packages. It supports 3‑wire serial interfaces (SPI, QSPI™, MICROWIRE™, DSP) and provides four general‑purpose digital outputs.
| Supply voltage (AVpp) | 3 V to 5.25 V |
|---|---|
| Supply voltage (DVpp) | 2.7 V to 5.25 V |
| Supply current | 4.65 mA |
| Input channels | 4 differential / 8 pseudo‑differential |
| Resolution | 24‑bit |
| RMS noise (gain = 128, 4.7 Hz) | 11 nV |
| Output data rate | 4.7 Hz to 4.8 kHz |
| Temperature range | –40 °C to +105 °C |
| Package options | 28‑lead TSSOP, 32‑lead LFCSP |
The AD7193 can output data from 4.7 Hz up to 4.8 kHz.
It is offered in a 28‑lead TSSOP package and a 32‑lead LFCSP package.
The RMS noise is 11 nV at 4.7 Hz when the gain is set to 128.
The device operates from –40 °C to +105 °C.