DAC7750IPWPR.B datasheet(1/56 Pages) TI2

部件名	DAC7750IPWPR.B

功能描述	DACx750 Single-Channel, 12-Bit and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications

PDF	56 Pages

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制造商	TI2 [Texas Instruments]

网页	https://www.ti.com

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DACx750 Single-Channel, 12-Bit and 16-Bit Programmable Current Output

Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications

1 Features

• Current output options:

– 0 mA to 24 mA

– 4 mA to 20 mA

– 0 mA to 20 mA

• ±0.1% FSR typical total unadjusted error (TUE)

• DNL: ±1 LSB maximum

• Maximum loop compliance voltage: AVDD – 2 V

• Internal 5-V reference: 10 ppm/°C (maximum)

• Internal 4.6-V power-supply output

• CRC frame error check

• Watchdog timer

• Thermal alarm

• Open-circuit alarm

• Pins to monitor output current

• On-chip fault alarm

• User-calibration for offset and gain

• Wide temperature range: –40°C to +125°C

• Packages: 6-mm × 6-mm 40-pin VQFN and 24-pin

HTSSOP

2 Applications

• Analog output module

• CPU (PLC controller)

• Flow transmitter

• Other sensor transmitter

• Actuator

• Process analytics (pH, gas, concentration, force

and humidity)

3 Description

The DAC7750 and DAC8750 (DACx750) are low-

cost, precision, fully-integrated, 12-bit and 16-bit

digital-to-analog converters (DACs) designed to

meet the requirements of industrial process-control

applications. These devices can be programmed as

a current output with ranges of 4 mA to 20 mA, 0 mA

to 20 mA, or 0 mA to 24 mA. The DACx750 include

reliability features such as CRC error checking on

the SPI frame, a watchdog timer, an open circuit,

compliance voltage, and thermal alarm. In addition,

the output current can be monitored by accessing an

internal precision resistor.

These devices include a power-on-reset function

designed to power up the device in a known state

(IOUT is disabled and in a Hi-Z state). The CLR pin

sets the current output to the low end of the range

if the output is enabled. Program the zero and gain

registers to digitally calibrate the device in the end

system. The output slew rate is also programmable by

register. These devices can superimpose an external

HART® signal on the current output, and operate with

a 10-V to 36-V supply.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

DACx750

HTSSOP (24)

7.80 mm × 4.40 mm

VQFN (40)

6.00 mm × 6.00 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

GND

DACx750

AVDD

DVDD-EN

DVDD

Slew Rate

Control

User Calibration

Gain/Offset

Register

DAC Input

Register

Thermal

Alarm

Internal

Reference

REFOUT

REFIN

HART-IN

LATCH

SCLK

DIN

SDO

CLR

DAC

Pre-

Conditioning

Current

Source

I

ENABLE

ISET-R

I

GAIN

Current Output Stage

IOUT

ALARM

BOOST

R3-SENSE

Watchdog

Timer

Block Diagram

DAC7750, DAC8750

SBAS538D – DECEMBER 2013 – REVISED DECEMBER 2021

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

类似零件编号 - DAC7750IPWPR.B

制造商	部件名	数据表	功能描述
Texas Instruments	DAC7750IPWPR	3Mb / 53P	DACx750 Single-Channel, 12- and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current Loop Applications

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