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DAC8750IPWPR Datasheet(PDF) 1 Page - Texas Instruments |
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DAC8750IPWPR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 53 page  GND DACx750 AVDD DVDD-EN DVDD Watchdog Timer 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 Copyright © 2016, Texas Instruments Incorporated Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design 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. DAC7750, DAC8750 SBAS538B – DECEMBER 2013 – REVISED JUNE 2016 DACx750 Single-Channel, 12- and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current Loop Applications 1 1 Features 1 • 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 • Max 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 • Terminals to Monitor Output Current • On-Chip Fault Alarm • User-Calibration for Offset and Gain • Wide Temperature Range: –40°C to 125°C • 6-mm × 6-mm 40-Pin VQFN and 24-Pin HTSSOP Packages 2 Applications • 4-mA to 20-mA Current Loops • Analog Output Modules • Building Automation • Environment Monitoring • Programmable Logic Controllers (PLCs) • Field Sensors and Process Transmitters 3 Description The DAC7750 and DAC8750 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 a range of 4 mA to 20 mA, 0 mA to 20 mA, or 0 mA to 24 mA. The DAC7750 and DAC8750 include reliability features such as CRC error checking on the serial peripheral interface (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 to ensure that the device powers up in a known state (IOUT is disabled and in a Hi-Z state). The CLR terminal 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 can operate with a 10-V to 36-V supply. All versions are available in both 40-pin VQFN and 24-pin TSSOP packages. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) DACx750 HTSSOP (24) 7.80 mm × 4.40 mm DACx750 VQFN (40) 6.00 mm × 6.00 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Block Diagram |
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