DAC8750
16-Bit Single-Channel Programmable Current Output DAC for 4-20mA Current-Loop Applications
DAC8750
- 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
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.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | DACx750 Single-Channel, 12-Bit and 16-Bit Programmable Current Output Digital-to-Analog Converters for 4-mA to 20-mA Current-Loop Applications datasheet (Rev. D) | PDF | HTML | 07 Dec 2021 |
Application note | A Basic Guide to the HART Protocol | PDF | HTML | 09 Nov 2023 | |
EVM User's guide | DACx760EMC-EVM User's Guide | 24 Apr 2014 | ||
Application note | Implementing HART™ Communication With the DAC8760 Family | 16 Jan 2014 | ||
EVM User's guide | DACx760EVM and DACx750EVM User's Guide (Rev. A) | 21 Nov 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
DAC8750EVM — DAC8750 16-Bit Programmable DAC With 4mA-to-20mA Current Output Evaluation Module
The DAC8750 evaluation module (EVM) provides an easy to use platform for evaluation of the performance and operating characteristics of the DAC8750 (16-bit, Voltage & Current Outputs). The EVM is a complete evaluation kit that includes a USB-based motherboard called the SM-USB-DIG, USB cable, (...)
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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
HTSSOP (PWP) | 24 | Ultra Librarian |
VQFN (RHA) | 40 | Ultra Librarian |
Ordering & quality
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