AD7192: 4.8 kHz、超低噪声、24位、Σ-Δ型ADC,内置PGA

AD7192是一款适合高精密测量应用的低噪声完整模拟前端。它集成一个低噪声、24位Σ-Δ型模数转换器(ADC)。片内低噪声增益级意味着可直接输入小信号。

这款器件可配置为两路差分输入或四路伪差分输入。片内通道序列器可以使能多个通道,AD7192按顺序在各使能通道上执行转换,这可以简化与器件的通信。片内4.92 MHz时钟可以用作ADC的时钟源;或者,也可以使用外部时钟或晶振。该器件的输出数据速率可在4.7 Hz至4.8 kHz的范围内变化。这款器件提供两种数字滤波器选项。滤波器的选择会影响以编程输出数据速率工作时的均方根噪声和无噪声分辨率、建立时间以及50 Hz/60 Hz抑制。针对要求所有转换均需建立的应用,AD7192具有零延迟特性。这款器件的工作电源电压为3 V至5.25 V,功耗为4.35 mA,采用24引脚TSSOP封装。

The AD7192 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC.

The device can be configured to have two differential inputs or four pseudo differential inputs. The on-chip channel sequencer allows several channels to be enabled, and the AD7192 sequentially converts on each enabled channel. This simplifies communication with the part. The on-chip 4.92 MHz clock can be used as the clock source to the ADC or, alternatively, an external clock or crystal can be used. The output data rate from the part can be varied from 4.7 Hz to 4.8 kHz.

The device has two digital filter options. The choice of filter affects the rms noise/noise-free resolution at the programmed output data rate, the settling time, and the 50 Hz/60 Hz rejection. For applications that require all conversions to be settled, the AD7192 includes a zero latency feature.The part operates with a power supply from 3 V to 5.25 V. It consumes a current of 4.35 mA. It is housed in a 24-lead TSSOP package.

AD7192 特点
AD7192 技术指标
AD7192 应用领域
AD7192 功能框图

AD7192 建议配套产品
AD7192 实验电路图

AD7192 芯片订购指南

产品型号 封装 引脚 温度范围 包装和数量 报价*(100-499) 报价*1000 pcs RoHS
AD7192BRUZ 产品状态: 量产 24 ld TSSOP 24 工业 Tube, 62 $ 5.85 $ 4.90
AD7192BRUZ-REEL 产品状态: 量产 24 ld TSSOP 24 工业 Reel, 2500 - $ 4.90
EVAL-AD7192EBZ 产品状态: 量产 评估板 -   1 $ 129.00 $ 129.00
AD7192 应用技术支持与电子电路设计开发资源下载
  1. AD7192 数据手册DataSheet下载 . pdf
  2. AD7192 评估版资料下载 . pdf
  3. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
  4. ADC模数转换器选型指南 . pdf