Texas Instruments ADC12038CIWM

8-Channel Single ADC SAR 114ksps 12-bit+Sign Serial 28-Pin SOIC Tube

Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold 28-SOIC -40 to 85

The ADC12032 and ADC12H032 (all packages) as well as the ADC12H034CIN and the ADC12H034CIWM are obsolete and shown for reference only. The ADC12030, and ADC12H030 families are 12-bit plus sign successive approximation A/D converters with serial I/O and configurable input multiplexers. The ADC12034/ ADC12H034 and ADC12038/ADC12H038 have 4 and 8 channel multiplexers, respectively. The differential multiplexer outputs and A/D inputs are available on the MUXOUT1, MUXOUT2, A/DIN1 and A/DIN2 pins. The ADC12030/ADC12H030 has a two channel multiplexer with the multiplexer outputs and A/D inputs internally connected. The ADC12030 family is tested with a 5 MHz clock, while the ADC12H030 family is tested with an 8 MHz clock. On request, these A/Ds go through a self calibration process that adjusts linearity, zero and full-scale errors to less than +-1 LSB each. The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo differential modes. A fully differential unipolar analog input range (0V to +5V) can be accommodated with a single +5V supply. In the differential modes, valid outputs are obtained even when the negative inputs are greater than the positive because of the 12-bit plus sign output data format. The serial I/O is configured to comply with NSC MICRO WIRE. For voltage references see the LM4040, LM4050 or LM4041.