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ADCS7476

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1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & LLP

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Data sheet

ADCS7476

ACTIVE
Data sheet Order now

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 voltage (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 voltage (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 mm × 2.8 mm)
  • 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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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet ADCS747x 1-MSPS, 12-Bit, 10-Bit, and 8-Bit A/D Converters datasheet (Rev. G) PDF | HTML May 25, 2016
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs May 21, 2015

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