Texas Instruments ADS7052 14位小型低功耗SAR ADC

Texas Instruments ADS7052 14位1MSPS单端输入小型低功耗SAR ADC是一款引脚对引脚兼容的高速器件。ADS7052包含多个分辨率、吞吐量和模拟输入型号。ADS7052支持0V到AVDD范围的单端输入,AVDD的范围为1.65V至3.6V。借助内部失调电压校准功能,可在整个AVDD和工作温度范围内保持优异的失调电压规格。ADS7052支持由CS和SCLK信号控制的SPI兼容串行接口。该器件的输入信号通过CS下降沿进行采样,而SCLK则用于转换和串行数据输出。ADS7052支持宽数字电源范围(1.65V至3.6V),可直接连接到各种主机控制器。ADS7052的标称DVDD范围(1.65V至1.95V)符合JESD8-7A标准。ADS7052采用8引脚小型X2QFN封装,可以在广泛的工业温度范围(–40°C至+125°C)内正常工作。ADS7052外形小巧、功耗极低,非常适合用于需要高速高分辨率数据采集的空间受限型电池供电应用。

Ideal offset specifications over the entire AVDD and temperature operating range are maintained through internal offset calibration. Controlled by the CS and SCLK signals, the ADS7052 supports an SPI-compatible serial interface.

The device uses an input signal sampled with the CS falling edge and SCLK for conversion and serial data output. A wide digital supply range of 1.65V to 3.6V is enabled on the ADS7052, directly interfacing with various host controllers. A normal DVDD range of 1.65V to 1.95V allows the ADS7052 to comply with the JESD8-7A standard.

An extended industrial temperature range of –40°C to +125°C and an 8-pin, small X2QFN package are available on the ADC devices. Space-constrained and battery-powered applications that require high-speed, high-resolution data acquisition are ideal for the Texas Instruments ADS7052, which efficiently achieves extremely-low power consumption in a small form factor.

特性

  • 单极输入范围:0V至AVDD
  • 宽工作电压范围:
    • AVDD:1.65V至.6V
    • DVDD:1.65V至3.6V(与AVDD无关)
    • 温度范围:–40°C至+125°C
  • 出色的性能:
    • 14位NMC DNL,±2LSB INL
    • 74.5dB SINAD(2kHz时)
    • 72.5dB SINAD(200kHz时)
  • 1MSPS吞吐量
  • 封装尺寸小:X2QFN-8封装 (1.5mm × 1.5mm)
  • 低功耗:
    • 1.5mW(1MSPS,3.3V AVDD时)
    • 160µW(100kSPS,3.3V AVDD时)
    • 40µW(100kSPS,1.8V AVDD时)
  • 集成失调电压校准
  • SPI兼容串行接口:24MHz
  • 符合JESD8-7A标准的数字I/O

应用

  • 光学编码器
  • 声纳接收器
  • 探鱼器
  • I-Q解调器
  • 光学路卡和模块
  • 热成像摄像机
  • 超声波流量计
  • 手持无线电

ADS7052功能图

框图 - Texas Instruments ADS7052 14位小型低功耗SAR ADC
发布日期: 2018-01-26 | 更新日期: 2022-10-25