TLV0832I

TLV0831C, TLV0831I TLV0832C, TLV0832I 3ĆVOLT 8ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS WITH SERIAL CONTROL SLAS148 − SEPTEMBER 1996 D 8-Bit Resolution D 2.7 V to 3.6 V VCC D Easy Microprocessor Interface or Standalone Operation D Operates Ratiometrically or With VCC Reference D Single Channel or Multiplexed Twin Channels With Single-Ended or Differential Input Options D Input Range 0 V to VCC With VCC Reference D Inputs and Outputs Are Compatible With TTL and MOS D Conversion Time of 32 µs at f(CLK) = 250 kHz D Designed to Be Functionally Equivalent to the National Semiconductor ADC0831 and ADC0832 at 3 V Supply D Total Unadjusted Error . . . ± 1 LSB TLV0831 . . . D OR P PACKAGE (TOP VIEW) CS 1 IN+ 2 IN− 3 GND 4 8 VCC 7 CLK 6 DO 5 REF TLV0832 . . . D OR P PACKAGE (TOP VIEW) CS 1 CH0 2 CH1 3 GND 4 8 VCC /REF 7 CLK 6 DO 5 DI description These devices are 8-bit successive-approximation analog-to-digital converters. The TLV0831 has single input channels; the TLV0832 has multiplexed twin input channels. The serial output is configured to interface with standard shift registers or microprocessors. The TLV0832 multiplexer is software configured for single-ended or differential inputs. The differential analog voltage input allows for common-mode rejection or offset of the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution. The operation of the TLV0831 and TLV0832...