Startseite Datenwandler Digital-Analog-Wandler (DACs) Präzisions-DACs (≤ 10 MSPS)
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Datenwandler
Digital-Analog-Wandler (DACs)
Präzisions-DACs (≤ 10 MSPS)

DAC8775

AKTIV

Vierkanaliger 16-Bit-DAC mit programmierbarem Strom- und Spannungsausgang

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Datenblatt

DAC8775

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Resolution (Bits) 16 Number of DAC channels 4 Interface type SPI Output type Buffered Current, Buffered Voltage Settling time (µs) 10 Features Integrated Buck Boost Converter, Low Power Reference type Ext, Int Architecture String Rating Catalog Output range (max) (mA/V) 24 Output range (min) (mA/V) -24 Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125
Resolution (Bits) 16 Number of DAC channels 4 Interface type SPI Output type Buffered Current, Buffered Voltage Settling time (µs) 10 Features Integrated Buck Boost Converter, Low Power Reference type Ext, Int Architecture String Rating Catalog Output range (max) (mA/V) 24 Output range (min) (mA/V) -24 Sample/update rate (Msps) 0.033 Power consumption (typ) (mW) 530 Operating temperature range (°C) -40 to 125
VQFN (RWF) 72 100 mm² 10 x 10
  • 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
  • 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.

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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Technische Dokumentation

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Typ Titel Datum
* 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
Application note A Basic Guide to the HART Protocol PDF | HTML 09 Nov 2023
Circuit design Programmable, two-stage, high-side current source circuit 20 Dez 2018
Application brief Thermal Management to Increase Density in PLC AO Modules 12 Jun 2018
EVM User's guide DAC8775EVM User's Guide 02 Dez 2016

Design und Entwicklung

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Evaluierungsplatine

DAC8775EVM — DAC8775-Evaluierungsmodul

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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Simulationsmodell

DAC8775 IBIS Model

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Berechnungstool

ANALOG-ENGINEER-CALC — Rechner für Analogtechniker

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 op-amp gain with feedback (...)
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Simulationstool

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Simulationstool

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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 (...)
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Referenzdesigns

TIPD216 — Vierkanaliger industrieller Spannungs- und Stromausgangstreiber – Referenzdeisgn (EMC/EMI-geprüft)

This quad-channel analog outputs module delivers voltage and current outputs using the highly integrated DAC8775 analog front-end. Integrated adaptive power management minimizes the power dissipation of the chip. Additionally, an external protection circuit is implemented to provide immunity to the (...)
Design guide: PDF
Schaltplan: PDF
Referenzdesigns

TIPD215 — Analoges Vierkanal-Ausgangsmodul mit weniger als 1 W und adaptivem Power-Management – Referenzdesign

This quad-channel, analog output module delivers voltage and current outputs using the highly integrated DAC8775 digital-to-analog converter (DAC). Integrated adaptive power management, along with the LM5166 buck converter, reduces the total power dissipation of the reference design to less than 1 (...)
Design guide: PDF
Schaltplan: PDF
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VQFN (RWF) 72 Optionen anzeigen
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