The AD7853/AD7853L are high speed, low power, 12-bit ADCs that operate from a single 3V or 5V power supply. The AD7853 is optimized for speed, while the AD7853L is optimized for low power. The ADCs feature a flexible serial interface and are suitable for a variety of applications.
The AD7853 family provides 12‑bit analog‑to‑digital conversion for battery‑powered and high‑speed applications. Two versions are offered: the standard AD7853 (200 kSPS) and the low‑power AD7853L (100 kSPS). Both devices operate from a single 3 V to 5.5 V supply and feature self‑calibration, automatic power‑down, and a versatile serial interface compatible with 8051, SPI, QSPI and other microcontrollers.
The datasheet details electrical specifications, pin functions, timing diagrams, absolute maximum ratings, and ordering information. It also defines calibration procedures, input ranges, and power‑management options for designers integrating the ADC into portable or instrumentation systems.
| Supply Voltage (AVpp/DVpp) | 3.0 V to 5.5 V |
|---|---|
| Resolution | 12 bits |
| Maximum Sampling Rate | 200 kSPS (AD7853) / 100 kSPS (AD7853L) |
| Power Consumption (Normal Mode) | 12 mW (AD7853) / 4.5 mW (AD7853L) at Vpp = 3 V |
The AD7853 can convert at up to 200 kSPS, while the low‑power AD7853L supports up to 100 kSPS.
The part operates with reference voltages from 1.2 V up to the supply voltage (Vpp), with a nominal internal reference of 2.5 V.