AD7854/AD7854L is a 3V to 5V single supply 200 kSPS 12-bit sampling ADC with features such as automatic calibration, low power consumption, and flexible parallel interface. It is suitable for battery-powered systems, instrumentation and control systems, etc.
The AD7854 and AD7854L are high‑speed, low‑power 12‑bit analog‑to‑digital converters that operate from a single 3 V or 5 V supply. The AD7854 version is optimized for speed (200 kSPS) while the AD7854L version emphasizes low power (100 kSPS). Both devices support self‑calibration, system calibration, and flexible parallel I/O.
Key specifications include a 12‑bit resolution, supply voltage range of 3.0 V to 5.5 V, and various power‑down modes that reduce consumption to a few microwatts. The datasheet provides full pin descriptions, timing diagrams, absolute maximum ratings, and ordering information for DIP, SOIC, and SSOP packages.
| Resolution | 12 bits |
|---|---|
| Supply Voltage Range | 3.0 V to 5.5 V |
| Maximum Sample Rate | 200 kSPS (AD7854) / 100 kSPS (AD7854L) |
| Power Dissipation (Normal Mode) | 15 mW (AD7854, VDD=3 V) / 5.5 mW (AD7854L, VDD=3 V) |
| Input Voltage Range | 0 to VREF (unipolar) or ±VREF/2 (bipolar) |
The device operates from a single supply of 3.0 V to 5.5 V.
The AD7854 can sample at up to 200 kSPS.
The DIP package provides 28 pins.