The ADC081C021/ADC081C027 is an I2C-compatible, 8-bit analog-to-digital converter (ADC) with Alert Function. It features low power consumption, single supply, high accuracy, high resolution, high speed, and small package.
The ADC081C021 and ADC081C027 are low‑power, monolithic 8‑bit analog‑to‑digital converters that operate from a +2.7 V to 5.5 V supply and use a successive‑approximation register architecture. They feature an I²C‑compatible two‑wire interface with standard, fast, and high‑speed modes, as well as an Alert function that signals out‑of‑range input conditions.
The document lists detailed ordering information, pin‑out diagrams, absolute maximum ratings, electrical characteristics, power‑down behavior, timing specifications, and recommended land‑pattern dimensions. Key performance figures include 188.9 kSPS maximum throughput, 0.26 mW typical power consumption at 3 V, and operation over an industrial temperature range of –40 °C to +105 °C.
| Resolution | 8 bits, no missing codes |
|---|---|
| Supply Voltage | +2.7 V to +5.5 V |
| Power Consumption (typical, 3 V) | 0.26 mW |
| Throughput Rate | 188.9 kSPS (max) |
| ESD Protection | 8 kV HBM on SDA, SCL pins |
In power‑down mode the device consumes less than 1 pW (0.5‑0.9 pW max).