DAC161S997 16-Bit Precision DAC With Internal Reference and 4mA-to-20mA Current Loop Drive | TI.com

DAC161S997 (ACTIVE)

16-Bit Precision DAC With Internal Reference and 4mA-to-20mA Current Loop Drive

 

Recommended alternative parts

  • XTR117  -  4-20mA current loop transmitter
  • DAC7750  -  12 bit DAC with 4-20mA current loop transmitter
  • DAC8750  -  16 bit DAC with 4-20mA current loop transmitter
  • DAC7760  -  12 bit DAC with 4-20mA current loop transmitter and voltage output
  • DAC8760  -  16 bit DAC with 4-20mA current loop transmitter and voltage output

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 4-20 mA 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 4-20 mA 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.

Features

  • 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)

View more

Parametrics Compare all products in Precision DACs (<=10MSPS)

 
Resolution (Bits)
Architecture
DAC channels
Interface
Output range (Max) (mA/V)
Output range (Min) (mA/V)
Output type
Reference: type
Rating
Operating temperature range (C)
Features
DAC161S997 DAC161P997
16     16    
Delta-Sigma     Delta-Sigma    
1     1    
SPI     Single-Wire    
24     24    
0     0    
Buffered Current     Buffered Current    
Ext     Ext    
Catalog     Catalog    
-40 to 105     -40 to 105    
4-20mA loop transmitter
Low Power    
4-20mA loop transmitter
Low Power