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Data Sheet
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU ADuC7121
FEATURES
Software-triggered in-circuit reprogrammability
Analog input/output 9-channel, 12-bit, 1 MSPS ADC 2 differential pairs with input PGA 7 general-purpose inputs (differential or single-ended) Fully differential and single-ended modes 0 V to VREF analog input range 5 low noise current digital-to-analog converters (IDACs) 250 mA, 200 mA, 45 mA, 80 mA, 20 mA 4 × 12-bit voltage output DACs On-chip voltage reference On-chip temperature sensor
Microcontroller ARM7TDMI core, 16-bit/32-bit RISC architecture JTAG port supports code download and debug
Clocking options Trimmed on-chip oscillator (±3%) External watch crystal External clock source up to 41.