Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
DAC2904IPFB

DAC2904IPFB

Texas Instruments

IC DAC 14BIT A-OUT 48TQFP

0

DAC8560IADGKT

DAC8560IADGKT

Texas Instruments

IC DAC 16BIT V-OUT 8VSSOP

2989

TLC7524CDR

TLC7524CDR

Texas Instruments

IC DAC 8BIT A-OUT 16SOIC

2161

DAC7612U/2K5

DAC7612U/2K5

Texas Instruments

IC DAC 12BIT V-OUT 8SOIC

4281

DAC7821IPWR

DAC7821IPWR

Texas Instruments

DAC7821 12-BIT, PARALLEL INPUT,

14607

TLV5614CD

TLV5614CD

Texas Instruments

IC DAC 12BIT V-OUT 16SOIC

546

TLC7528INE4

TLC7528INE4

Texas Instruments

DAC, PARALLEL, 8 BITS

0

TLV5626CDR

TLV5626CDR

Texas Instruments

IC DAC 8BIT V-OUT 8SOIC

331

DAC7612U

DAC7612U

Texas Instruments

IC DAC 12BIT V-OUT 8SOIC

214

DAC38RF93IAAVR

DAC38RF93IAAVR

Texas Instruments

IC DAC 144FCBGA

0

DAC60501ZDQFR

DAC60501ZDQFR

Texas Instruments

SINGLE CHAN DAC 12BIT- ZEROCODE

0

DAC60501MDQFR

DAC60501MDQFR

Texas Instruments

SINGLE CHANNEL DAC 12BIT- MIDCOD

3000

DAC7625UB

DAC7625UB

Texas Instruments

IC DAC 12BIT V-OUT 28SOIC

348

DAC7734EC/1K

DAC7734EC/1K

Texas Instruments

DAC7734 16-BIT, QUAD VOLTAGE OUT

1073

DAC7541AJU

DAC7541AJU

Texas Instruments

DAC, PARALLEL, WORD INPUT

1183

DAC7311IDCKR

DAC7311IDCKR

Texas Instruments

IC DAC 12BIT V-OUT SC70-6

0

DAC8822QCDBTR

DAC8822QCDBTR

Texas Instruments

IC DAC 16BIT A-OUT 38TSSOP

372

DAC8560ICDGKT

DAC8560ICDGKT

Texas Instruments

IC DAC 16BIT V-OUT 8VSSOP

2079

DAC8562TDGST

DAC8562TDGST

Texas Instruments

IC DAC 16BIT V-OUT 10VSSOP

308

DAC5571IDBVT

DAC5571IDBVT

Texas Instruments

IC DAC 8BIT V-OUT SOT23-6

472

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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