ADuC7039 is an integrated, precision battery sensor for automotive systems.
The ADuC7039 handbook describes a precision battery‑sensor microcontroller that integrates dual‑channel 16‑bit ADCs, a 1.2 V reference, and an ARM7TDMI‑S core. It outlines key features such as programmable ADC throughput, on‑chip voltage reference, LIN 2.1‑compatible slave interface, and low‑power operation directly from a 12 V battery.
The document includes functional block diagrams, detailed pin configurations, timing specifications for the LIN interface, electrical and absolute‑maximum ratings, memory organization, and programming guidelines. It also provides extensive electrical specifications for the ADC channels, power supply requirements, and environmental limits.
| ADC input range (current channel) | ‑200 mV to +300 mV |
|---|---|
| Operating temperature range | ‑40 °C to +115 °C |
| Power supply voltage range | 3.5 V to 18 V |
| Flash/EE memory endurance | 10,000 cycles |
| Current consumption (10 MHz operation) | 7.5 mA |
The current‑channel ADC accepts an absolute input voltage range of –200 mV to +300 mV.
The device is fully specified for operation from –40 °C up to +115 °C.
The on‑chip flash/EE memory is rated for 10,000 write‑erase cycles.