AD7853/AD7853L is a high speed, low power, 12-bit ADC that operates from a single 3V or 5V power supply, the AD7853 being optimized for speed and the AD7853L for low power. The ADC features a 2.5V reference voltage, internal memory and controller, SAR converter, DC-coupled inputs, multiple interfaces and multiple packages.
The AD7853/AD7853L family are high‑speed, low‑power 12‑bit analog‑to‑digital converters that operate from a single 3 V to 5.5 V supply. The AD7853 version is optimized for speed (200 kSPS) while the AD7853L version emphasizes low power (100 kSPS). Both devices include self‑calibration and system‑calibration features that run automatically on power‑up.
The converters are available in 24‑lead DIP, SOIC and SSOP packages and support flexible serial interfaces such as SPI, QSPI, 8051 and mP. Key specifications include a 12‑bit resolution, reference voltage range of 1.2 V to VDD, and various power‑down modes for power‑efficient operation.
| Supply Voltage | 3 V–5.5 V single supply |
|---|---|
| Resolution | 12 bit |
| Maximum Sampling Rate | 200 kSPS (AD7853) / 100 kSPS (AD7853L) |
| Power Consumption (3 V) | 12 mW (AD7853) / 4.5 mW (AD7853L) |
| Package Options | 24‑lead DIP, SOIC, SSOP |
Both devices operate from a single 3 V to 5.5 V supply.
The converters support SPI, QSPI, 8051 and mP serial interfaces.
The AD7853 can sample at up to 200 kSPS, while the low‑power AD7853L reaches up to 100 kSPS.