The ADuC7128 and ADuC7129 are fully integrated 1 MSPS, 12-bit data acquisition systems that integrate a high-performance multi-channel analog-to-digital converter (ADC), DDS with built-in line drivers, 16/32-bit MCUs, and Flash/EE memory on a single chip.
The ADC has up to 14 single-ended inputs. The ADC can operate in single-ended mode or differential input mode, and the ADC input voltage range from 0 to VREF. A low-drift bandgap reference source, temperature sensor, and voltage comparator complete the ADC's peripheral setup.
The ADuC7128/ADuC7129 integrate a differential line driver output. This line driver sends a sine wave, the value of which is calculated by the on-chip DDS or the voltage output determined by the DACDAT MMR.
These devices generate an internal high-frequency clock signal of 41.78 MHz via an on-chip oscillator and a phase-locked loop (PLL). This clock signal is relayed through a programmable clock divider that generates the MCU core clock operating frequency.
The microcontroller core is ARM7TDMI®, which is a 16/32-bit Reduced Instruction Set Computer (RISC) with peak performance of up to 41 MIPS. 126 kB non-volatile Flash/EE and 8 kB SRAM are available in-chip. ARM7TDMI core treats all memory and registers as a linear array.
The on-chip firmware supports serial online download through the UART serial interface port, and supports non-intrusive simulation through the JTAG interface. These features are integrated into the low-cost QuickStart™ development system that supports this MicroConverter® family.
The devices operate from a voltage range of 3.0 V to 3.6 V and are rated over an industrial temperature range of −40°C to +125°C. At 41.78 MHz, it consumes 135 mW. When the line driver output is enabled, an additional 30 mW of power consumption is added.