ADC122S706CIMTX/NOPB

The ADC122S706 is a dual 12-bit, 500 kSPS to 1 MSPS simultaneous sampling Analog-to-Digital (A/D) converter. The analog inputs on both channels are sampled simultaneously to preserve their relative phase information to each other. The converter is based on a successive-approximation register architecture where the differential nature of the analog inputs is maintained from the internal track-and-hold circuits throughout the A/D converter to provide excellent common-mode signal rejection. The ADC122S706 features an external reference that can be varied from 1.0V to VA. The ADC122S706 offers dual high-speed serial data outputs that are binary 2's complement and are compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces. Channel A's conversion result is outputted on DOUTA while Channel B's conversion result is outputted on DOUTB. This feature makes the ADC122S706 an excellent replacement for systems using two distinct ADCs in a simultaneous sampling application. The serial clock (SCLK) and chip select bar (CS) are shared by both channels. For lower power consumption, a single serial data output mode is externally selectable.

Applications

• Motor Control
• Power Meters/Monitors
• Multi-Axis Positioning Systems
• Instrumentation and Control Systems
• Data Acquisition Systems
• Medical Instruments Direct Sensor Interface

Key features

• True Simultaneous Sampling Differential Inputs
• Guaranteed Performance from 500 kSPS to 1 MSPS
• External Reference
• Wide Input Common-Mode Voltage Range
• Single or Dual High-Speed Serial Data Outputs
• Operating Temperature Range of -40°C to +105°C
• SPI/QSPI/MICROWIRE/DSP Compatible Serial Interface