Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type Microwire (Serial I/O), SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 2 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
Resolution (Bits) 12 Sample rate (max) (ksps) 1000 Number of input channels 1 Interface type Microwire (Serial I/O), SPI Architecture SAR Input type Single-ended Rating Catalog Reference mode Supply Input voltage range (max) (V) 5.25 Input voltage range (min) (V) 0 Features Small Size Operating temperature range (°C) -40 to 125 Power consumption (typ) (mW) 2 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.25 SNR (dB) 72.5 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.25
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8
  • Variable Power Management
  • Packaged in 6-Pin SOT-23
  • Power Supply Used as Reference
  • Single 2.7-V to 5.25-V Supply Operation
  • Compatible With SPI™, QSPI™, MICROWIRE™,
    and DSP
  • Key Specifications
    • Resolution With No Missing Codes (12-Bit, 10-
      Bit, and 8-Bit)
    • Conversion Rate: 1 MSPS
    • DNL: 0.5, –0.3 LSB (Typical)
    • INL: ±0.4 LSB (Typical)
    • Power Consumption:
      • 3-V Supply: 2 mW (Typical)
      • 5-V Supply: 10 mW (Typical)
  • Variable Power Management
  • Packaged in 6-Pin SOT-23
  • Power Supply Used as Reference
  • Single 2.7-V to 5.25-V Supply Operation
  • Compatible With SPI™, QSPI™, MICROWIRE™,
    and DSP
  • Key Specifications
    • Resolution With No Missing Codes (12-Bit, 10-
      Bit, and 8-Bit)
    • Conversion Rate: 1 MSPS
    • DNL: 0.5, –0.3 LSB (Typical)
    • INL: ±0.4 LSB (Typical)
    • Power Consumption:
      • 3-V Supply: 2 mW (Typical)
      • 5-V Supply: 10 mW (Typical)

The ADCS7476, ADCS7477, and ADCS7478 devices are low power, monolithic CMOS 12-, 10-, and 8-bit analog-to-digital converters that operate at 1 MSPS. The ADCS747x devices are a drop-in replacement for Analog Device’s AD747x. Each device is based on a successive approximation register architecture with internal track-and-hold. The serial interface is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.

The ADCS747x uses the supply voltage as a reference, enabling the device to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. These converters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADCS747x is operated with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption during continuous conversion, using a 3-V or 5-V supply, is 2 mW or 10 mW respectively. The power-down feature, which is enabled by a chip select (CS) pin, reduces the power consumption to under 5 µW using a 5-V supply. All three converters are available in a 6-pin SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. These products are designed for operation over the automotive and extended industrial temperature range of –40°C to 125°C.

The ADCS7476, ADCS7477, and ADCS7478 devices are low power, monolithic CMOS 12-, 10-, and 8-bit analog-to-digital converters that operate at 1 MSPS. The ADCS747x devices are a drop-in replacement for Analog Device’s AD747x. Each device is based on a successive approximation register architecture with internal track-and-hold. The serial interface is compatible with several standards, such as SPI, QSPI, MICROWIRE, and many common DSP serial interfaces.

The ADCS747x uses the supply voltage as a reference, enabling the device to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. These converters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADCS747x is operated with a single supply that can range from 2.7 V to 5.25 V. Normal power consumption during continuous conversion, using a 3-V or 5-V supply, is 2 mW or 10 mW respectively. The power-down feature, which is enabled by a chip select (CS) pin, reduces the power consumption to under 5 µW using a 5-V supply. All three converters are available in a 6-pin SOT-23 package, which provides an extremely small footprint for applications where space is a critical consideration. These products are designed for operation over the automotive and extended industrial temperature range of –40°C to 125°C.

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Type Title Date
* Data sheet ADCS747x 1-MSPS, 12-Bit, 10-Bit, and 8-Bit A/D Converters datasheet (Rev. G) PDF | HTML 25 May 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
EVM User's guide 50 ksps to 1 Msps, 12-, 10- and 8-Bit EVM Users Manual 20 Feb 2012

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