ZHCSIN9A
August 2018 – November 2018
ADS1119
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
电压、电流和温度监控应用
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Timing Requirements
6.7
I2C Switching Characteristics
6.8
Typical Characteristics
7
Parameter Measurement Information
7.1
Noise Performance
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Multiplexer
8.3.2
Rail-to-Rail Input Buffers and Programmable Gain Stage
8.3.3
Voltage Reference
8.3.4
Modulator and Internal Oscillator
8.3.5
Digital Filter
8.3.6
Conversion Times
8.3.7
Offset Calibration
8.4
Device Functional Modes
8.4.1
Power-Up and Reset
8.4.1.1
Power-On Reset
8.4.1.2
RESET Pin
8.4.1.3
Reset by Command
8.4.2
Conversion Modes
8.4.2.1
Single-Shot Conversion Mode
8.4.2.2
Continuous Conversion Mode
8.4.3
Power-Down Mode
8.5
Programming
8.5.1
I2C Interface
8.5.1.1
I2C Address
8.5.1.2
Serial Clock (SCL) and Serial Data (SDA)
8.5.1.3
Data Ready (DRDY)
8.5.1.4
Interface Speed
8.5.1.5
Data Transfer Protocol
8.5.1.6
I2C General Call (Software Reset)
8.5.1.7
Timeout
8.5.2
Data Format
8.5.3
Commands
8.5.3.1
Command Latching
8.5.3.2
RESET (0000 011x)
8.5.3.3
START/SYNC (0000 100x)
8.5.3.4
POWERDOWN (0000 001x)
8.5.3.5
RDATA (0001 xxxx)
8.5.3.6
RREG (0010 0rxx)
8.5.3.7
WREG (0100 00xx dddd dddd)
8.5.4
Reading Data and Monitoring for New Conversion Results
8.6
Register Map
8.6.1
Configuration and Status Registers
8.6.2
Register Descriptions
8.6.2.1
Configuration Register (address = 0h) [reset = 00h]
Table 10.
Configuration Register Field Descriptions
8.6.2.2
Status Register (address = 1h) [reset = 00h]
Table 11.
Status Register Field Descriptions
9
Application and Implementation
9.1
Application Information
9.1.1
Interface Connections
9.1.2
Connecting Multiple Devices on the Same I2C Bus
9.1.3
Unused Inputs and Outputs
9.1.4
Analog Input Filtering
9.1.5
External Reference and Ratiometric Measurements
9.1.6
Establishing Proper Limits on the Absolute Input Voltage
9.1.7
Pseudo Code Example
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Voltage Monitoring
9.2.2.2
High-Side Current Measurement
9.2.2.3
Thermistor Measurement
9.2.2.4
Register Settings
9.2.3
Application Curve
10
Power Supply Recommendations
10.1
Power-Supply Sequencing
10.2
Power-Supply Decoupling
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
器件支持
12.1.1
第三方产品免责声明
12.2
文档支持
12.2.1
相关文档
12.3
接收文档更新通知
12.4
社区资源
12.5
商标
12.6
静电放电警告
12.7
术语表
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RTE|16
MPQF149D
PW|16
MPDS361A
散热焊盘机械数据 (封装 | 引脚)
RTE|16
QFND298F
订购信息
zhcsin9a_oa
zhcsin9a_pm
1
特性
易于使用,仅通过一个寄存器进行编程
电流消耗可以低至 315µA(典型值)
宽电源电压范围:2.3V 至 5.5V
轨至轨输入缓冲区,可实现高输入阻抗
可编程增益:1 和 4
可编程数据速率:高达 1kSPS
16 位无噪声分辨率(20SPS 时)
采用单周期稳定数字滤波器,在 20
SPS 时实现同步 50Hz 和 60Hz 抑制
两个差分输入或四个单端输入
集成 2.048V 基准电压:漂移 5ppm/°C(典型值)
集成 2% 精准振荡器
与 I
2
C 兼容的接口
支持的 I
2
C 总线速度模式:
标准模式、快速模式、超快速模式
16 引脚可配置 I
2
C 地址
封装:3.0mm × 3.0mm × 0.75mm WQFN