ZHCSC70D
December 2013 – December 2021
DAC7750
,
DAC8750
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Electrical Characteristics: AC
7.7
Timing Requirements: Write Mode
7.8
Timing Requirements: Readback Mode
7.9
Timing Diagrams
7.10
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
DAC Architecture
8.3.2
Current Output Stage
8.3.3
Internal Reference
8.3.4
Digital Power Supply
8.3.5
DAC Clear
8.3.6
Power-On Reset
8.3.7
Alarm Detection
8.3.8
Watchdog Timer
8.3.9
Frame Error Checking
8.3.10
User Calibration
8.3.11
Programmable Slew Rate
8.4
Device Functional Modes
8.4.1
Setting Current-Output Ranges
8.4.2
Current-Setting Resistor
8.4.3
BOOST Configuration for IOUT
8.4.4
Filtering The Current Output
8.4.5
Output Current Monitoring
8.4.6
HART Interface
8.4.6.1
Implementing HART in 4-mA to 20-mA Mode
8.4.6.2
Implementing HART in All Current Output Modes
8.5
Programming
8.5.1
Serial Peripheral Interface (SPI)
8.5.1.1
SPI Shift Register
8.5.1.2
Write Operation
8.5.1.3
Read Operation
8.5.1.4
Stand-Alone Operation
8.5.1.5
Multiple Devices on the Bus
8.6
Register Maps
8.6.1
DACx750 Register Descriptions
8.6.1.1
Control Register
8.6.1.2
Configuration Register
8.6.1.3
DAC Registers
8.6.1.4
Reset Register
8.6.1.5
Status Register
9
Application and Implementation
9.1
Application Information
9.1.1
HART Implementation
9.1.1.1
Using the CAP2 Pin
9.1.1.2
Using the ISET-R Pin
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.1.1
Thermal Considerations
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
接收文档更新通知
12.3
支持资源
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PWP|24
MPDS372A
RHA|40
MPQF135D
散热焊盘机械数据 (封装 | 引脚)
PWP|24
PPTD264C
RHA|40
QFND114P
订购信息
zhcsc70d_oa
zhcsc70d_pm
1
特性
电流输出选项:
0mA 至 24mA
4mA 至 20mA
0mA 至 20mA
±0.1% FSR 典型总体未调误差 (TUE)
DNL:±1LSB 最大值
最大环路合规性电压:AVDD – 2V
内部 5V 基准:10ppm/°C(最大值)
4.6V 内部电源输出
CRC 帧错误校验
看门狗计时器
热警报
开路警报
用于监控输出电流的引脚
片上故障警报
针对偏移和增益的用户校准
宽温度范围:–40°C 至 125°C
封装:6mm × 6mm 40 引脚 VQFN 和 24 引脚 HTSSOP
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