Datasheet 搜索 > DA转换器 > TI（德州仪器） > DAC161P997CISQ/NOPB 数据手册 > DAC161P997CISQ/NOPB 其他数据使用手册 1/32 页
器件3D模型￥ 28.231
DAC161P997CISQ/NOPB 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DA转换器
封装:
WQFN-16
描述:
TEXAS INSTRUMENTS DAC161P997CISQ/NOPB 芯片, 数模转换器, 16位, LLP-16
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P4P7Hot
典型应用电路图在P1
原理图在P1P2
封装尺寸在P30
型号编码规则在P4
功能描述在P1
技术参数、封装参数在P1P6P7
应用领域在P1P25
电气规格在P6P9P12P17P26P28
导航目录
DAC161P997CISQ/NOPB数据手册
Page:
of 32 Go
若手册格式错乱，请下载阅览PDF原文件
DAC161P997
August 2, 2011
Single-Wire 16-bit DAC for 4-20mA Loops
1.0 General Description
The DAC161P997 is a 16- bit ∑Δ digital-to-analog converter
(DAC) for transmitting an analog output current over an in-
dustry standard 4-20 mA current loop. It offers 16-bit accuracy
with a low output current temperature coefficient (29ppm/°C)
and excellent long-term output current drift (90 ppmFS) while
consuming less than 190µA.
The data link to the DAC161P997 is a Single Wire Interface
(SWIF) which allows sensor data to be transferred in digital
format over an isolation boundary using a single isolation
component. The DAC161P997’s digital input is compatible
with standard isolation transformers and optocouplers. Error
detection and handshaking features within the SWIF protocol
ensure error free communication across the isolation bound-
ary. For applications where isolation is not required, the
DAC161P997 interfaces directly to a microcontroller.
The loop drive of the DAC161P997 interfaces to a HART
(Highway Addressable Remote Transducer) modulator, al-
lowing injection of FSK modulated digital data into the 4-20mA
current loop. This combination of specifications and features
makes the DAC161P997 ideal for 2- and 4-wire industrial
transmitters.
The DAC161P997 is available in a 16–lead LLP package and
is specified over the extended industrial temperature range of
-40°C to 105°C.
2.0 Applications
•
Two-wire, 4-20 mA current loop transmitter
•
Industrial Process Control
•
Actuator control
•
Factory Automation
•
Building Automation
•
Precision Instruments
•
Data Acquisition Systems
•
Test Systems
3.0 Features
■
16-bit linearity
■
Single-Wire Interface (SWIF), with handshake
■
Digital Data transmission (no loss of fidelity)
■
Pin Programmable Power-Up Condition
■
Self adjusting to input data rate
■
Loop error detection and reporting
■
Programmable output current error level
■
No external precision components
■
Simple interface to HART modulator
■
Small package: LLP-16 (4x4 mm, 0.5 mm pitch)
4.0 Key Specifications
■
Output Current TempCo 29 ppmFS/°C(max)
■
Long-Term Output Current Drift 90 ppmFS(typ)
■
INL +3.3/−2.1 µA(max)
■
Total Supply Current 190 µA(max)
5.0 Typical Application - Conceptual Schematic
30154401
National Semiconductor® is a registered trademark of National Semiconductor Corporation.
© 2011 National Semiconductor Corporation 301544 www.national.com
DAC161P997 Single-Wire 16-bit DAC for 4-20mA Loops
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
