LTC1286/LTC1298 Micropower Sampling 12-Bit A/D Converters In S0-8 Packages
The LTC1286 and LTC1298 are micropower, 12‑bit, successive‑approximation A/D converters offered in 8‑lead plastic DIP and SOIC packages. They operate from a single supply (4.5 V to 9 V for LTC1286, 4.5 V to 5.5 V for LTC1298) and feature low‑cost operation with typical supply current of 250 µA during conversion and an auto‑shutdown current of 1 nA when idle.
The document lists detailed electrical characteristics, conversion timing, AC performance, pin functions, and example circuits such as a quick‑look test board and a battery‑monitoring application. Package dimensions and ordering information are also provided.
| Typical Supply Current (conversion) | 250 µA |
|---|---|
| Auto‑Shutdown Current | 1 nA |
| Supply Voltage Range (LTC1286) | 4.5 V – 9 V |
| Conversion Time (LTC1286) | 80 µs |
| Analog Input Leakage Current | ±1 pA |
The device draws about 250 µA of supply current during conversion.
In auto‑shutdown mode the current drops to approximately 1 nA.