返回Texas Instruments

Texas Instruments ADS7039-Q1 SAR模数转换器 (ADC)

Texas Instruments ADS7039-Q1 SAR模数转换器 (ADC) 是一款符合汽车Q100标准的10位2MSPS模数转换器。该器件的模拟输入电压范围都很大（2.35V至3.6V），并包含一个带固有采样保持电路的电容式、逐次逼近寄存器 (SAR) 模数转换器。SPI兼容串行接口通过CS和SCLK信号进行控制。输入信号随CS下降沿一起得到采样，而SCLK用于转换和串行数据输出。该器件支持宽幅数字电源范围（1.65V至3.6V），可以与多种主控制器连接。对于普通DVDD范围（1.65V至1.95V），ADS7039-Q1符合JESD8-7A标准。

The SPI-compatible serial interface is controlled by the CS and SCLK signals. The input signal is sampled with the CS falling edge and SCLK is used for conversion and serial data output. The device supports a wide digital supply range (1.65V to 3.6V), enabling a direct interface to a variety of host controllers. The ADS7039-Q1 complies with the JESD8-7A standard for a normal DVDD range (1.65V to 1.95V).

特性

  • Qualified for automotive applications
  • AEC-Q100 Qualified with device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level ±2000V
    • Device CDM ESD classification level ±1000V
  • Ultra-low power consumption:
    • 1.2 mW (max) at 2MSPS with 3V AVDD
    • Less Than 1µW at 1kSPS with 3V AVDD
  • Miniature footprint of 2.30mm × 2.00mm 8-Pin VSSOP package
  • 2MSPS Throughput with zero data latency
  • Wide Operating Range:
    • 2.35V to 3.6V AVDD
    • 1.65V to 3.6V DVDD (Independent of AVDD)
    • –40°C to +125°C Temperature range
  • Excellent performance:
    • 10-Bit Resolution with NMC
    • ±0.4LSB DNL; ±0.4LSB INL
    • 61dB SNR with 3V AVDD
  • –75dB THD with 3V AVDD
  • 0V to AVDD Unipolar input range
  • Integrated Offset Calibration
  • 32MHz SPI-Compatible serial interface
  • JESD8-7A Compliant digital I/O

应用

  • Automotive infotainment
  • Automotive sensors
  • Level sensors
  • Ultrasonic flow meters
  • Motor control
  • Portable medical equipment

Functional Diagram

框图 - Texas Instruments ADS7039-Q1 SAR模数转换器 (ADC)
发布日期: 2017-08-21 | 更新日期: 2022-04-25