Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
AD7228ABRZ-REEL

AD7228ABRZ-REEL

Analog Devices, Inc.

D/A CONVERTER, 8 FUNC, PARALLEL,

24

AD562KD/BCD

AD562KD/BCD

Analog Devices, Inc.

12-BIT D/A CONVERTER

11

LTC2635HUD-LMO12#PBF

LTC2635HUD-LMO12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 16QFN

506

LTC2640ITS8-HZ10#TRPBF

LTC2640ITS8-HZ10#TRPBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT TSOT23-8

0

DAC8221GP

DAC8221GP

Analog Devices, Inc.

DUAL 12-BIT MULTIPLYING DAC

33

AD5676BCPZ-REEL7

AD5676BCPZ-REEL7

Analog Devices, Inc.

AD5676 - 16-BIT OCTAL SPI NANODA

3337

AD8842AR

AD8842AR

Analog Devices, Inc.

DAC, 8 CH, SERIAL INPUT LOADING

46640

LTC2635HUD-LMI10#PBF

LTC2635HUD-LMI10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 16QFN

11

MAX5121AEEE-T

MAX5121AEEE-T

Analog Devices, Inc.

12-BIT, SERIAL VOUT DAC

2150

AD7538SQ

AD7538SQ

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

792

AD5570BRSZ

AD5570BRSZ

Analog Devices, Inc.

IC DAC 16BIT V-OUT 16SSOP

72

5962-8850901XC

5962-8850901XC

Analog Devices, Inc.

QUAD CHANNEL 12-BIT (AD390S)

10

AD7245ABRZ

AD7245ABRZ

Analog Devices, Inc.

IC DAC 12BIT V-OUT 24SOIC

519

AD7801BRZ

AD7801BRZ

Analog Devices, Inc.

IC DAC 8BIT V-OUT 20SOIC

371

AD1833ACST

AD1833ACST

Analog Devices, Inc.

MULTI-CH 24-BIT SIGMA-DELTA DAC

1073

MAX534BCEE

MAX534BCEE

Analog Devices, Inc.

8-BIT QUAD DAC

814

LTC1655LIN8#PBF

LTC1655LIN8#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 8DIP

0

LTC2622IMS8#PBF

LTC2622IMS8#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 8MSOP

5185

LTC2637CMS-HZ10#PBF

LTC2637CMS-HZ10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 16MSOP

0

AD5310BRM

AD5310BRM

Analog Devices, Inc.

2.7V-5.5V, 140UA, R-R 10-BIT DAC

33861

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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