The AD676 is a 16-bit parallel output ADC with a 100 kSPS sampling rate. It has self-calibration and serial communication format is 16-bit serial.
The AD676 is a multipurpose 16‑bit analog‑to‑digital converter that uses a switched‑capacitor/charge‑redistribution architecture to achieve a 100 kSPS conversion rate (10 µs total conversion time). It integrates a digital control chip and an analog ADC chip in a single 28‑pin package and operates from +5 V and ±12 V supplies.
Key features include on‑chip autocalibration, parallel 16‑bit output, no missing codes, and separate analog and digital grounds to reduce crosstalk. The device is available in ceramic DIP or side‑brazed ceramic packages, with a serial‑output variant (AD677) also offered.
| Resolution | 16 bits |
|---|---|
| Maximum Sampling Rate | 100 kSPS |
| Power Consumption | 360 mW |
| Supply Voltages | +5 V, ±12 V |
| Integral Nonlinearity (INL) | ±1 LSB (typical) |
| Differential Nonlinearity (DNL) | No Missing Codes |
| Full‑Power Bandwidth | 1 MHz |
The AD676 completes a conversion in 10 µs, giving a maximum sampling rate of 100 kSPS.
It uses an on‑chip autocalibration routine that measures and stores capacitor‑mismatch errors in RAM, eliminating the need for user trims.
The device operates from a +5 V logic supply and ±12 V analog supplies.
It is offered in a 28‑pin plastic DIP or a 28‑pin side‑brazed ceramic package.