Support software
DAC7750
12-bit, single-channel, programmable current output DAC for 4-20mA current loop applications
Data sheet
DAC7750
- 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
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View all 5 | 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.
Evaluation board
DAC7750EVM — DAC7750 12-Bit Programmable DAC With 4mA-to-20mA Current Output Evaluation Module
The DAC7750 evaluation module (EVM) provides an easy to use platform for evaluation of the performance and operating characteristics of the DAC7750 (12-bit, Voltage & Current Outputs). The EVM is a complete evaluation kit that includes a USB-based motherboard called the SM-USB-DIG, USB cable, (...)
User guide: PDF
Calculation tool
ANALOG-ENGINEER-CALC — Analog engineer's calculator
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool
TINA-TI — SPICE-based analog simulation program
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Reference designs
TIDA-00118 — 16-Bit Analog Output Module Reference Design for Programmable Logic Controllers (PLC)
This reference design provides a complete 4-channel, 16-bit analog output module design for Programmable Logic Controllers (PLCs). It is designed and fully tested to meet IEC61000-4 EMC and surge requirements for industrial automation systems. The small form-factor design implements four 16-bit (...)
Reference designs
TIPD119 — Voltage and current output terminal reference design for analog outputs in industrial applications
This verified reference design implements a combined voltage and current output terminal for analog outputs in industrial applications. The DAC8760 combined with the OPA192 create a combined voltage and current output that allows for a single two-terminal output connector for both the voltage (...)
Reference designs
TIPD153 — Single-Channel Industrial Voltage & Current Output Driver, Isolated, EMC/EMI Tested Reference Design
This TI CerTIfied Reference Design implements a isolated single-channel industrial voltage and current output module using the DAC8760 and ISO7641. The circuit features a digitally controlled voltage or current output that produces the standard outputs of 0-20mA, 0-24mA, 4-20mA, 0-5V, +/-5V, (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| VQFN (RHA) | 40 | Ultra Librarian |
Ordering & quality
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Information included:
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Support & training
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