ZHCSN14H
June 2005 – June 2025
ADS1232
,
ADS1234
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Parameter Measurement Information
6.1
Noise Performance
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Analog Inputs (AINPX, AINNX)
7.3.2
Temperature Sensor (ADS1232 Only)
7.3.3
Low-Noise PGA
7.3.3.1
PGA Bypass Capacitor
7.3.4
Voltage Reference Inputs (REFP, REFN)
7.3.5
Clock Sources
7.3.6
Digital Filter Frequency Response
7.3.7
Settling Time
7.3.8
Data Rate
7.3.9
Data Format
7.3.10
Data Ready and Data Output (DRDY/DOUT)
7.3.11
Serial Clock Input (SCLK)
7.3.12
Data Retrieval
7.4
Device Functional Modes
7.4.1
Offset Calibration Mode
7.4.2
Standby Mode
7.4.3
Standby Mode With Offset-Calibration
7.4.4
Power-Down Mode
7.4.5
Power-Up Sequence
7.4.6
Summary of Serial Interface Waveforms
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.3.1
Power-Supply Decoupling
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
接收文档更新通知
9.2
支持资源
9.3
Trademarks
9.4
静电放电警告
9.5
术语表
10
Revision History
11
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PW|28
MPDS364
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsn14h_oa
zhcsn14h_pm
1
特性
适用于桥式传感器的完整前端
23.5 位有效分辨率(增益 = 1)
19.2 位无噪声分辨率(增益 = 64)
低噪声 PGA
1、2、64 和 128 可选增益
RMS 噪声:
10SPS 时为 17nV(增益 = 128)
80SPS 时为 44nV(增益 = 128)
100dB 同步 50Hz 和 60Hz 抑制
灵活的时钟:
低漂移内部振荡器
可选外部晶体
可选择 10SPS 或 80SPS 数据速率
简单的比例式测量:
最高 5V 的外部电压基准
双通道差分输入,带内部温度传感器 (ADS1232)
四通道差分输入 (ADS1234)
双线串行接口
电源电压范围:2.7V 至 5.3V
温度范围:-40°C 至 +105°C
封装:TSSOP-24 (ADS1232) 或 TSSOP-28 (ADS1234)