AD7739BRUZ-REEL7:  8通道、4 kHz、24位Σ-Δ型ADC

AD7739是一款高精度、高吞吐量模拟前端,可实现真16位峰-峰值分辨率及250 µs总转换时间(4 kHz通道切换),非常适合高分辨率多路复用应用。

AD7739采用Σ-Δ架构,具有最高24位无失码性能。用户可通过简易数字接口对该器件进行配置,从而平衡噪声性能与数据吞吐量,实现最高15.4 kHz的转换速率。该模拟前端可配置为8个单端输入或4个全差分输入通道,输入范围包括单极性或双极性625 mV、1.25 V和2.5 V,以及从AGND+200 mV至AVDD-300 mV的共模输入电压。此款ADC支持按通道进行系统校准选项。数字串行接口可配置用于三线式操作,并且与微控制器和数字信号处理器兼容。所有接口输入均为施密特触发式。该器件的额定温度范围为扩展工业温度范围:–40°C至+105°C,采用24引脚TSSOP封装。

The AD7739 is a high precision, high throughput analog front end. True 16-bit peak-to-peak resolution is achievable with a total conversion time of 250 µs (4 kHz channel switching) making it ideally suitable for high resolution multiplexing applications.

The AD7739 is based on a sigma-delta architecture and features up to 24 bits of no missing codes performance. The part can be configured via a simple digital interface, which allows users to balance the noise performance against data throughput up to a 15.4 kHz conversion rate. The analog front end features 8 single-ended or 4 fully differential input channels with unipolar or bipolar 625 mV, 1.25 V and 2.5 V input ranges and accepts a common mode input voltage from 200 mV above AGND to AVDD-300 mV. The ADC supports per channel system calibration options.The digital serial interface can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. All interface inputs are Schmitt triggered.The part is specified for operation over the extended industrial temperature range of -40ºC to +105ºC and is available in 24-lead TSSOP package.

AD7739BRUZ-REEL7 特点
AD7739BRUZ-REEL7 功能框图

AD7739 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7739BRU 量产 24 ld TSSOP 24 工业
AD7739BRU-REEL 量产 24 ld TSSOP 24 工业
AD7739BRUZ 量产 24 ld TSSOP 24 工业
AD7739BRUZ-REEL7 量产 24 ld TSSOP 24 工业
EVAL-AD7739EBZ 量产 评估板 - 待定
AD7739BRUZ-REEL7 应用技术支持与电子电路设计开发资源下载
  1. AD7739 数据手册DataSheet下载 . pdf
  2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
  3. ADC模数转换器选型指南 . pdf