8-Bit Resolution
2.7 V to 3.6 V VCC
Easy Microprocessor Interface or
Standalone Operation
Operates Ratiometrically or With VCC
Reference
Single Channel or Multiplexed Twin
Channels With Single-Ended or Differential
Input Options
Input Range 0 V to VCC With VCC Reference
Inputs and Outputs Are Compatible With
TTL and MOS
Conversion Time of 32 μs at
f(CLK) = 250 kHz
Designed to Be Functionally Equivalent to
the National Semiconductor ADC0831 and
ADC0832 at 3 V Supply
Total Unadjusted Error . . . ± 1 LSB

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 devices is very similar to the more complex TLV0834 and TLV0838
devices. Ratiometric conversion can be attained by setting the REF input equal to the maximum analog input
signal value, which gives the highest possible conversion resolution. Typically, REF is set equal to VCC (done
internally on the TLV0832).
The TLV0831C and TLV0832C are characterized for operation from 0°C to 70°C. The TLV0831I and TLV0832I
are characterized for operation from −40°C to 85°C.