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Single Channel, 0.5 to 1 Msps, 12-Bit A/D Converter

Qty Price
1-9 $4.07
10-24 $3.67
25-99 $3.41
100-249 $2.99
250-499 $2.81
500-749 $2.38
750-999 $2.01
1000+ $1.92


  • Specified Over a Range of Sample Rates
  • 6-Pin WSON and SOT-23 Packages
  • Variable Power Management
  • Single Power Supply With 2.7 V to 5.25 V Range
  • AEC-Q100 Grade 1 Qualified
  • DNL: +0.5 / –0.3 LSB (Typical)
  • INL: ±0.40 LSB (Typical)
  • Power Consumption:
    • 3-V Supply: 2 mW (Typical)
    • 5-V Supply: 10 mW (Typical)

Texas Instruments  ADC121S101CISD/NOPB

The ADC121S101 is a low-power, single-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC121S101 is fully specified over a sample rate range of 500 ksps to 1 Msps. The converter is based upon a successive-approximation register architecture with an internal track-and-hold circuit.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.

The ADC121S101 operates with a single supply with a range from 2.7 V to 5.25 V. Normal power consumption using a 3 V or 5 V supply is 2 mW and 10 mW, respectively. The power-down feature reduces the power consumption to as low as 2.6 µW using a 5-V supply.

The ADC121S101 is packaged in 6-pin WSON and SOT-23 packages. Operation over the temperature range of –40°C to 125°C is specified.