型号 封装 在线定购
ADS7870EA(查看) SSOP28


技术资料—— ADS7870 PDF技术资料

ADS7870 概述

The ADS7870 (US patents 6140872, 6060874) is a complete low-power data acquisition system on a single chip. The ADS7870 consists of a 4-channel differential/8-channel single-ended multiplexer, precision programmable gain amplifier, 12-bit successive approximation analog-to-digital (A/D) converter, and a precision voltage reference.

The ADS7870 contains an internal reference, which is trimmed for high initial accuracy and stability vs temperature. Drift is typically 10 ppm/°C. An external reference can be used in situations where multiple ADS7870s share a common reference.

ADS7870 参数
ADS7870 基本参数
分辨率(Bits)   12
采样速率(max)   52 kSPS
ADS7870 其他特性
工作电压(V)   2.7~5.25
输入通道数   8
ADS7870 封装与引脚

ADS7870 特性

  • PGA Gains: 1, 2, 4, 5, 8, 10, 16, 20V/V
  • Programmable Input (Up to 4-channel Differential/Up to 8-channel Single-Ended or Some Combination)
  • 1.15-V, 2.048-V or 2.5-V Internal Reference
  • SPI/DSP Compatible Serial Interface (≤20 MHz)
  • Throughput Rate: 52 kSamples/sec
  • Error/Overload Indicator
  • Programmable Output 2s Complement/Binary
  • 2.7-V to 5.5-V Single-Supply Operation
  • 4-Bit Digital I/O Via Serial Interface
  • Pin Compatible With ADS7871
  • SSOP-28 Package

ADS7870 应用

  • Portable Battery-Powered Systems
  • Low-Power Instrumentation
  • Low-Power Control Systems
  • Smart Sensor Applications