产品详情

Resolution (Bits) 10 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 85 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) 10 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 85 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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* 数据表 ADCS747x 1-MSPS, 12-Bit, 10-Bit, and 8-Bit A/D Converters 数据表 (Rev. G) PDF | HTML 2016年 5月 25日
电子书 Best of Baker's Best: Precision Data Converters -- SAR ADCs 2015年 5月 21日
EVM 用户指南 50 ksps to 1 Msps, 12-, 10- and 8-Bit EVM Users Manual 2012年 2月 20日

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