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DAC161P997 Single-Wire 16-bit DAC for 4- to 20-mA Loops
SNAS515G
July 2011 – December 2014
DAC161P997
PRODUCTION DATA.
CONTENTS
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DAC161P997 Single-Wire 16-bit DAC for 4- to 20-mA Loops
1
Features
2
Application
3
Description
4
Revision History
5
Pin Configuration and 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
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Error Detection and Reporting
7.3.2
Alarm Current
7.4
Device Functional Modes
7.5
Programming
7.5.1
Single-Wire Interface (SWIF)
7.5.1.1
Frame Format
7.5.1.2
Inter-Frame Period
7.5.1.3
Symbol Set
7.5.1.4
Interface Circuit
7.5.1.4.1
Transformer Coupled Interface - Data Flow to the DAC
7.5.1.4.2
Transformer Coupled Interface - Acknowledge Pulse
7.5.1.4.3
DC-Coupled Interface
7.5.1.4.4
Transformer Selection and SWIF Data Link Circuit Design
7.6
Register Maps
7.6.1
LCK
7.6.2
CONFIG1
7.6.3
CONFIG2
7.6.4
CONFIG3
7.6.5
ERR_LOW
7.6.6
ERR_HIGH
8
Application and Implementation
8.1
Application Information
8.1.1
16-BIT DAC and Loop Drive
8.1.1.1
DC Characteristics
8.1.1.1.1
DC Input-Output Transfer Function
8.1.1.1.2
Loop Interface
8.1.1.1.3
Loop Compliance
8.1.1.2
AC Characteristics
8.1.1.2.1
Step Response
8.1.1.2.2
Output Impedance
8.1.1.2.3
PSRR
8.1.1.2.4
Stability
8.1.1.2.5
Noise and Ripple
8.1.1.2.6
Digital Feedthrough
8.1.1.2.7
HART Signal Injection
8.1.1.2.8
RC Filter Limitation
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Third-Party Products Disclaimer
11.2
Trademarks
11.3
Electrostatic Discharge Caution
11.4
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
RGH|16
MPQF182B
Thermal pad, mechanical data (Package|Pins)
RGH|16
QFND440A
Orderable Information
snas515g_oa
snas515g_pm
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