DAC8775
16-Bit Quad-Channel Programmable Current-Output and Voltage-Output Digital-to-Analog Converter (DAC)
DAC8775
- Output Current:
- 0 mA to 24 mA; 3.5 mA to 23.5 mA; 0 mA to 20 mA; 4 mA to 20 mA; ±24 mA
- Output Voltage (with/without 20% over-range):
- 0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V
- 0 V to 6 V; 0 V to 12 V; ±6 V; ±12 V
- Adaptive Power Management
- Single Wide Power Supply Pin (12 V – 36 V)
- ±0.1% FSR Total Unadjusted Error (TUE)
- DNL: ±1 LSB Max
- Internal 5-V Reference (10 ppm/°C max)
- Internal 5-V Digital Power Supply Output
- CRC/Frame Error Check, Watchdog Timer
- Thermal Alarm, Open/Short Circuit for System Reliability
- Safe Actions on Alarm Condition
- Auto Learn Load Detection
- Wide Temperature Range: –40°C to +125°C
The DAC8775 is a quad-channel precision, fully integrated, 16-bit, digital-to-analog converter (DAC) with adaptive power management, and is designed to meet the requirements of industrial control applications. The adaptive power management circuit, when enabled, minimizes the power dissipation of the chip. When programmed as a current output, the supply voltage on the current output driver is regulated between 4.5 V and 32 V based on continuous feedback of voltage on the current output pin via an integrated buck/boost converter. When programmed as a voltage output, this circuit generates a programmable supply voltage for the voltage output stage (±15 V). DAC8775 also contains an LDO to generate the digital supply (5 V) from a single power supply pin.
DAC8775 is also implemented with a Highway Addressable Remote Transducer (HART) Signal Interface to superimpose an external HART signal on the current output. The slew rate of the current output DAC is register programmable. The device can operate with a single external power supply of +12 V to +36 V using the integrated buck/boost converters or with external power supplies when the buck/boost converters are disabled.
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Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | DAC8775 Quad-Channel, 16-Bit Programmable Current Output and Voltage Output Digital-to-Analog Converter with Adaptive Power Management datasheet | PDF | HTML | 07 Feb 2017 |
Circuit design | Programmable, two-stage, high-side current source circuit (Rev. A) | PDF | HTML | 19 Sep 2024 | |
Application note | A Basic Guide to the HART Protocol | PDF | HTML | 09 Nov 2023 | |
Application brief | Thermal Management to Increase Density in PLC AO Modules | 12 Jun 2018 | ||
EVM User's guide | DAC8775EVM User's Guide | 02 Dec 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
DAC8775EVM — DAC8775 Evaluation Module
The DAC8775 evaluation module (EVM) is an easy-to-use platform for evaluating the functionality and performance of the DAC8775 device. The DAC8775 is a 16-bit, quad-channel, programmable-current or voltage-output digital-to-analog converter (DAC) with adaptive power management. The EVM is a (...)
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Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RWF) | 72 | Ultra Librarian |
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