DAC161S997

更新时间： 2024-11-05 12:28:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
27页	1287K
描述
16-bit SPI Programmable DAC for 4-20mA Loops

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DAC161S997 数据手册

DAC161S997

www.ti.com

SNAS621 –JUNE 2013

16-bit SPI Programmable DAC for 4-20mA Loops

Check for Samples: DAC161S997

FEATURES

DESCRIPTION

The DAC161S997 is a very low power 16-bit ΣΔ

digital-to-analog converter (DAC) for transmitting an

analog output current over an industry standard 4-

20mA current loop. The DAC161S997 has a simple

4-wire SPI for data transfer and configuration of the

DAC functions. To reduce power and component

count in compact loop-powered applications, the

DAC161S997 contains an internal ultra-low power

voltage reference and an internal oscillator. The low

power consumption of the DAC161S997 results in

additional current being available for the remaining

portion of the system. The loop drive of the

DAC161S997 interfaces to a Highway Addressable

Remote Transducer (HART) modulator, allowing

injection of FSK modulated digital data into the 4-

20mA current loop. This combination of specifications

and features makes the DAC161S997 ideal for 2- and

4-wire industrial transmitters. The DAC161S997 is

available in a 16-pin 4 mm × 4 mm WQFN package

and is specified over the extended industrial

temperature range of –40°C to +105°C.

•

16-bit Resolution

Very Low Supply Current of 100 µA

5 ppmFS/°C Gain Error

Pin-Programmable Power-Up Condition

Loop-Error Detection and Reporting

Programmable Output-Current Error Levels

Simple HART Modulator Interfacing

Highly Integrated Feature Set in Small

Footprint WQFN-16 (4 × 4 mm, 0.5 mm Pitch)

APPLICATIONS

•

Two-Wire 4-20mA Current-Loop Transmitter

Loop-Power Transmitters

Industrial Process Control

Actuator Control

LOOP+

LDO

Internal

Reference

4-20 mA

Loop

SCLK

CSB

ÐÂ DAC

BASE

I_DAC

SDI

COMD

COMA

OUT

SDO

80k

DAC161S997

ERRB

LOOP-

ERRLVL

HART

Modulator

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...27

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DAC161S997 替代型号

型号	品牌	替代类型	描述	数据表
DAC7750	TI	功能相似	适用于 4mA 至 20mA 电流环路应用的 12 位、单通道、可编程电流输出 DAC
DAC161P997	TI	功能相似	DAC161P997 Single-Wire 16-bit DAC for 4-20mA Loops
XTR117	TI	功能相似	4-20mA Current-Loop Transmitter

与DAC161S997相关器件

型号	品牌	获取价格	描述	数据表
DAC161S997EVM	TI	获取价格	helps designers evaluate the operation and performance of the DAC161S997 4-20mA Loop Drive
DAC161S997RGHR	TI	获取价格	16-bit SPI Programmable DAC for 4-20mA Loops
DAC161S997RGHT	TI	获取价格	16-bit SPI Programmable DAC for 4-20mA Loops
DAC1627D1G25	IDT	获取价格	Dual 16-bit DAC, LVDS interface, up to 1.25 Gsps, x2, x4 and x8 interpolating
DAC1627D1G25	NXP	获取价格	Dual 16-bit DAC, LVDS interface, up to 1.25 Gsps, x2, x4 and x8 interpolating
DAC1627D1G25HN/C1,	IDT	获取价格	Dual 16-bit DAC, up to 1.25 Gsps; 2x 4x and 8x interpolating, SOT813-3 Package, Standard M
DAC1628D1G25HN	IDT	获取价格	D/A Converter, 2 Func, PQCC56
DAC1653D1G0NLGA	IDT	获取价格	D/A Converter, 1 Func, Serial Input Loading, 0.02us Settling Time, 8 X 8 MM, 0.85 MM HEIGH
DAC1653D1G5NLGA	IDT	获取价格	D/A Converter, 1 Func, Serial Input Loading, 0.02us Settling Time, 8 X 8 MM, 0.85 MM HEIGH
DAC1653D2G0NLGA	IDT	获取价格	D/A Converter, 1 Func, Serial Input Loading, 0.02us Settling Time, 8 X 8 MM, 0.85 MM HEIGH

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