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8-Bit Serial I/O CMOS A/D Converters with Multiplexer and Sample/Hold Function

Qty Price
1-9 $2.02
10-24 $1.81
25-99 $1.68
100-249 $1.46
250-499 $1.35
500-749 $1.13
750-999 $0.93
1000+ $0.85


  • 3-Wire Serial Digital Data Link Requires Few I/O Pins
  • Analog Input Track/Hold Function
  • 2-Channel Input Multiplexer Option with Address Logic
  • Analog Input Voltage Range from GND to VCC
  • No Zero or Full Scale Adjustment Required
  • TTL/CMOS Input/Output Compatible
  • Superior Pin Compatible Replacement for ADC0831/2

Key Specifications

  • Resolution: 8 Bits
  • Conversion Time (fC = 2 MHz): 4μs (Max)
  • Power Dissipation: 8.5mW (Typ)
  • Low Power Mode: 3.0mW (Typ)
  • Single Supply: 5VDC
  • Total Unadjusted Error: ±1LSB
  • No Missing Codes over Temperature

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Texas Instruments  ADC08831IMX/NOPB

The ADC08831/ADC08832 are 8-bit successive approximation Analog to Digital converters with 3-wire serial interfaces and a configurable input multiplexer for 2 channels. The serial I/O will interface to COPSfamily of micro-controllers, PLD's, microprocessors, DSP's, or shift registers. The serial I/O is configured to comply with the MICROWIRE serial data exchange standard.

To minimize total power consumption, the ADC08831/ADC08832 automatically go into low power mode whenever they are not performing conversions.

A track/hold function allows the analog voltage at the positive input to vary during the actual A/D conversion.

The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. The voltage reference input can be adjusted to allow encoding of small analog voltage spans to the full 8-bits of resolution.