The ADuC834 is a complete smart transducer front end, integrating two high resolution �-� ADCs, an 8-bit MCU, and program/data Flash/EE storage.
The ADuC834 MicroConverter integrates two high‑resolution ADCs (16‑bit and 24‑bit), an 8052‑compatible MCU core, 62 KB of flash program memory, 4 KB of data memory and a range of on‑chip peripherals such as DACs, timers, UART, SPI and a temperature sensor. It is intended for intelligent sensor, weigh‑scale, portable instrumentation and data‑logging applications.
The device operates from either a 3 V or 5 V supply, offers selectable package types (52‑lead MQFP or 56‑lead LFCSP), and provides extensive configuration options for analog input ranges, reference voltages and current sources. Detailed electrical specifications, timing diagrams and pin descriptions are included for designers.
| Flash Program Memory | 62 KB |
|---|---|
| Flash Data Memory | 4 KB |
| ADC Resolution | 24‑bit primary, 16‑bit auxiliary |
| Conversion Rate | 5.4 Hz (both channels) |
| Maximum Core Clock | 12.58 MHz |
| Power Consumption (Normal Mode, 3 V) | 2.3 mA max @ 3.6 V |
The device can run from 2.7 V to 3.6 V for the 3 V version and from 4.75 V to 5.25 V for the 5 V version.
It includes two independent ADCs: one 16‑bit and one 24‑bit.
The ADuC834 contains 62 KB of flash program memory and 4 KB of flash data memory.
The on‑chip PLL can generate up to 12.58 MHz.