The ADC12030, and ADC12H030 families are 12-bit plus sign
successive approximation Analog-to-Digital 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 ADC 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 ADC 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 ADCs 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.