DAC8775 Series
16-Bit Quad-Channel Programmable Current-Output and Voltage-Output Digital-to-Analog Converter (DAC)
Manufacturer: Texas Instruments
Catalog
16-Bit Quad-Channel Programmable Current-Output and Voltage-Output Digital-to-Analog Converter (DAC)
Key Features
• 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 mAOutput Voltage (with/without 20% over-range):0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V0 V to 6 V; 0 V to 12 V; ±6 V; ±12 VAdaptive Power ManagementSingle Wide Power Supply Pin (12 V – 36 V)±0.1% FSR Total Unadjusted Error (TUE)DNL: ±1 LSB MaxInternal 5-V Reference (10 ppm/°C max)Internal 5-V Digital Power Supply OutputCRC/Frame Error Check, Watchdog TimerThermal Alarm, Open/Short Circuit for System ReliabilitySafe Actions on Alarm ConditionAuto Learn Load DetectionWide Temperature Range: –40°C to +125°COutput Current:0 mA to 24 mA; 3.5 mA to 23.5 mA; 0 mA to 20 mA; 4 mA to 20 mA; ±24 mAOutput Voltage (with/without 20% over-range):0 V to 5 V; 0 V to 10 V; ±5 V; ±10 V0 V to 6 V; 0 V to 12 V; ±6 V; ±12 VAdaptive Power ManagementSingle Wide Power Supply Pin (12 V – 36 V)±0.1% FSR Total Unadjusted Error (TUE)DNL: ±1 LSB MaxInternal 5-V Reference (10 ppm/°C max)Internal 5-V Digital Power Supply OutputCRC/Frame Error Check, Watchdog TimerThermal Alarm, Open/Short Circuit for System ReliabilitySafe Actions on Alarm ConditionAuto Learn Load DetectionWide Temperature Range: –40°C to +125°C
Description
AI
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.
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.
