Texas Instruments ADS8578S高速8通道ADC
Texas Instruments ADS8578S高速8通道ADC是一款基于14位逐次逼近型 (SAR) 模数转换器 (ADC) 的集成数据采集 (DAQ) 系统。所有输入通道均同时采样，以实现每通道200kSPS的最大吞吐量。该器件的每个通道都有一个完整的模拟前端。每个前端均包括一个包含输入阻抗高达1MΩ的可编程增益放大器 (PGA)、输入钳位、低通滤波器和ADC输入驱动器。ADS8578S还设有带缓冲器的低漂移、高精度基准电压，用于驱动ADC。凭借灵活的数字接口，该器件支持串行、并行和并行字节通信，适用于各种主机控制器。得益于高性能和高精度，以及零延迟转换，ADS8578S成为诸多工业自动化和控制应用的理想选择。
特性
- 14-Bit ADC with integrated analog front-end
- Simultaneous sampling of 8 channels
- Pin-programmable bipolar inputs of ±10V and ±5V
- High input impedance of 1MΩ
- 5V Analog supply of 2.3V to 5V digital supply
- Overvoltage input clamp with 7kV ESD
- Low-drift, on-chip reference (2.5V), and buffer
- Excellent performance
- 200kSPS Max throughput per channels
- DNL: ±0.2LSB; INL: ±0.2LSB
- SNR: 85.8dB; THD: −109dB
- Overtemperature prformance
- Max offset drift of 3ppm/°C
- Gain drift of 6ppm/°C
- On-chip digital filter for oversampling
- Flexible parallel, byte, and serial interface
- Temperature Range of –40°C to +125°C
- 64-Pin LQFP Package
应用
- Monitoring and control for power grids
- Protection relays
- Multiphase motor controls
- Industrial automation and controls
- Multichannel data acquisition systems
Associated Development Tool
Texas Instruments ADS8588SEVM-PDK评估模块 (EVM)
用于评估SAR模数转换器 (ADC) ADS8588S性能的平台。
视频
Functional Block Diagram
发布日期: 2017-09-08
| 更新日期: 2022-06-01