Analog Devices offers its ADuCM320/ADuCM322 precision mcu with an analog-to-digital converter (ADC) for optical networking

     Analog Devices' ADuCM320/ADuCM322 are fully integrated MCUS that combine high-performance analog peripherals with digital peripherals controlled by an 80mhz ARM Cortex-M3 processor and integrated Flash for code and data processing. These devices have a 12-bit or 14-bit ADC that provides 1 MSPS data acquisition with up to 16 input pins and can be programmed for single-ended or differential operation. The voltage at the IDAC output pin can also be measured by the ADC, which is useful for controlling the power consumption of the current dac.

     The ADuCM320/ADuCM322 integrates a range of on-chip peripherals that can be configured as required under software control. These peripherals include one UART, two I(2)C and two Serial Peripheral Interface (SPI) serial input/output communication controllers, universal Input/Output (GPIO), 32 element programmable logic array, three universal timers plus a wake timer, and system watchdog timer. A 16-bit pulse-width modulation (PWM) with seven output channels is also provided. These devices are packaged in a 96-CSPBGA package and operate at temperatures ranging from -40°C to 85°C or 125°C.