Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
TLC7528EDW

TLC7528EDW

Texas Instruments

IC DAC 8BIT A-OUT 20SOIC

0

DAC8801IDGKTG4

DAC8801IDGKTG4

Texas Instruments

IC DAC 14BIT A-OUT 8VSSOP

0

DAC70501ZDQFT

DAC70501ZDQFT

Texas Instruments

SINGLE CHAN DAC 14BIT- ZEROCODE

450

DAC7728SRTQT

DAC7728SRTQT

Texas Instruments

DAC7728 OCTAL, LOW POWER, 12-BIT

2750

DAC3161IRGCR

DAC3161IRGCR

Texas Instruments

IC DAC 12BIT A-OUT 64VQFN

0

DAC7641Y/250

DAC7641Y/250

Texas Instruments

DAC7641 16-BIT, VOLTAGE OUTPUT D

68

DAC7800KUG4

DAC7800KUG4

Texas Instruments

D/A CONVERTER, 1 FUNC, SERIAL IN

25

DAC5571IDBVR

DAC5571IDBVR

Texas Instruments

IC DAC 8BIT V-OUT SOT23-6

4677

DAC7617U/1K

DAC7617U/1K

Texas Instruments

DAC, SERIAL INPUT

2000

DAC8541Y/2K

DAC8541Y/2K

Texas Instruments

DAC8541 LOW POWER, 16-BIT D-TO-A

27172

DAC7625UB/1K

DAC7625UB/1K

Texas Instruments

IC DAC 12BIT V-OUT 28SOIC

0

TLV5632IPWG4

TLV5632IPWG4

Texas Instruments

IC DAC 8BIT V-OUT 20TSSOP

0

TLV5616ID

TLV5616ID

Texas Instruments

IC DAC 12BIT V-OUT 8SOIC

47

TLC7524ENG4

TLC7524ENG4

Texas Instruments

IC DAC 8BIT A-OUT 16DIP

0

DAC8162SDGST

DAC8162SDGST

Texas Instruments

IC DAC 14BIT V-OUT 10VSSOP

99

DAC082S085CIMM/NOPB

DAC082S085CIMM/NOPB

Texas Instruments

IC DAC 8BIT V-OUT 10VSSOP

6827

TLC5615ID

TLC5615ID

Texas Instruments

IC DAC 10BIT V-OUT 8SOIC

0

DAC80501ZDQFT

DAC80501ZDQFT

Texas Instruments

SINGALE CHANNEL DAC 16BIT

738

DAC081C081CISD/NOPB

DAC081C081CISD/NOPB

Texas Instruments

IC DAC 8BIT V-OUT 6WSON

995

DAC5689IRGCR

DAC5689IRGCR

Texas Instruments

IC DAC 16BIT A-OUT 64VQFN

0

Data Acquisition - Digital to Analog Converters (DAC)

1. Overview

Digital-to-Analog Converters (DACs) are semiconductor devices that convert digital signals into analog voltages or currents. They serve as critical interfaces between digital systems and real-world analog environments. DACs are essential in applications requiring precise control of analog outputs, such as audio processing, industrial automation, and communication systems. Their performance directly impacts signal fidelity, system accuracy, and overall efficiency in data acquisition chains.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Current-Steering DACHigh-speed operation using switched current sourcesRF signal generation, high-speed test equipment
Voltage-Output DACDirect voltage generation with built-in amplifiersProcess control, sensor calibration
Multiplixing DACSupports variable reference inputs for signal modulationDigital gain control, programmable power supplies
Pipeline DACSegmented architecture for high sample ratesCommunication transmitters, video processing
Sigma-Delta ( - ) DACHigh-resolution with noise shaping techniquesAudio systems, precision measurement instruments

3. Structure and Components

A typical DAC IC comprises: - Digital Interface (SPI, I2C, or parallel bus) - Decoder Circuitry for binary/thermometer code conversion - Resistor/Capacitor Arrays for weighted signal summation - Switch Matrix controlling current/voltage paths - Output Amplifier conditioning the analog signal - Reference Voltage Source ensuring conversion stability Modern DACs often integrate calibration logic and temperature compensation circuits in QFN, TSSOP, or BGA packages.

4. Key Technical Specifications

ParameterSignificance
Resolution (bits)Determines the smallest analog change (e.g., 12-bit 4096 steps)
Sample Rate (SPS)Maximum conversion speed (up to 10 GSPS in RF DACs)
Integral Nonlinearity (INL)Measures deviation from ideal transfer function
Differential Nonlinearity (DNL)Indicates step size consistency
Settling TimeTime to stabilize output after digital input change
Power ConsumptionCrucial for portable/battery-powered systems

5. Application Areas

Main industries include: - Consumer Electronics: Smartphones (audio DACs), streaming devices - Industrial Automation: PLC systems, CNC machine control - Medical Equipment: MRI imaging systems, patient monitoring - Telecommunications: Optical modems, 5G base stations - Test & Measurement: Signal generators, oscilloscopes - Automotive: EV battery management, ADAS sensor calibration

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsDAC38J8416-bit, 2.5 GSPS RF DAC with JESD204B interface
Analog DevicesAD575516-channel, industrial voltage/current output DAC
Maxim IntegratedMAX513410-bit, 1.8V low-power video DAC
Nordic SemiconductornRF21540RF front-end with integrated DAC for IoT devices

7. Selection Guidelines

Key considerations: - Match resolution and speed requirements (e.g., audio vs. RF applications) - Evaluate output type (current/voltage) and drive capability - Assess linearity specifications (INL/DNL) for precision needs - Consider power budget and thermal management - Verify digital interface compatibility (SPI, I2C, etc.) - Temperature range and package type for environmental conditions - Calibration features for long-term stability

8. Industry Trends

Current development directions include: - Integration with ADCs and signal processors in SoC solutions - Advancements in R-2R ladder architectures for higher precision - Development of radiation-hardened DACs for aerospace applications - Energy-efficient designs for IoT edge devices - Expansion of AI-driven calibration algorithms - Adoption of advanced packaging (e.g., 3D stacking) for higher density Market growth is driven by 5G infrastructure, autonomous vehicles, and industrial IoT deployments requiring high-speed, high-accuracy signal conversion.

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