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ADS7886 - 产品图解:
ADS7886-2.35V-5.25V 12 位 1MSPS 串行 ADC
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TI产品 - ADS7886介绍
ADS7886 - 2.35V-5.25V 12 位 1MSPS 串行 ADC

ADS7886是TI公司的一款精密ADC(<=10MSPS)产品,ADS7886是2.35V-5.25V 12 位 1MSPS 串行 ADC,本页介绍了ADS7886的产品说明、应用、特性等,并给出了与ADS7886相关的TI元器件型号供参考。

ADS7886 - 2.35V-5.25V 12 位 1MSPS 串行 ADC - 精密ADC(<=10MSPS) - 模数转换器 - TI公司(Texas Instruments,德州仪器)

产品描述

The ADS7886 is a 12-bit, 1-MSPS analog-to-digital converter (ADC). The device includes a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS, and SCLK is used for conversion and serial data output.

The device operates from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the device makes it suitable for battery-powered applications. The device also includes a powerdown feature for power saving at lower conversion speeds.

The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power up sequencing.

The ADS7886 is available in 6-pin SOT23 and SC70 packages and is specified for operation from -40°C to 125°C.

产品特性

  • 1-MHz Sample Rate Serial Device
  • 12-Bit Resolution
  • Zero Latency
  • 20-MHz Serial Interface
  • Supply Range: 2.35 V to 5.25 V
  • Typical Power Dissipation at 1 MSPS:
    • 3.9 mW at 3-V VDD
    • 7.5 mW at 5-V VDD
  • INL ±1.25 LSB Maximum, ±0.65 LSB (Typical)
  • DNL ±1 LSB Maximum, +0.4 / -0.65 LSB (Typical)
  • Typical AC Performance: 72.25 dB SINAD, -84 dB THD
  • Unipolar Input Range: 0 V to VDD
  • Power Down Current: 1 µA
  • Wide Input Bandwidth: 15 MHz at 3 dB
  • 6-Pin SOT23 and SC70 Packages
  • APPLICATIONS
    • Base Band Converters in Radio Communication
    • Motor Current/Bus Voltage Sensors in Digital Drives
    • Optical Networking (DWDM, MEMS Based Switching)
    • Optical Sensors
    • Battery Powered Systems
    • Medical Instrumentations
    • High-Speed Data Acquisition Systems
    • High-Speed Closed-Loop Systems

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