Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
AD7391SR

AD7391SR

Analog Devices, Inc.

DAC,SERIAL INPUT LOADING

5368

LTC2642ACDD-16#PBF

LTC2642ACDD-16#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 10DFN

467

LTC1669-8IMS8#PBF

LTC1669-8IMS8#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 8MSOP

1492

LTC2625CGN#TRPBF

LTC2625CGN#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 16SSOP

0

DAC121S101CIMK

DAC121S101CIMK

Texas Instruments

DAC, 1 FUNC, SERIAL INPUT LOADIN

15963

AD660ANZ

AD660ANZ

Analog Devices, Inc.

IC DAC 16BIT V-OUT 24DIP

158

AD7533CQ

AD7533CQ

Analog Devices, Inc.

IC DAC 10BIT A-OUT 16CDIP

32

AD5542JRZ-REEL7

AD5542JRZ-REEL7

Analog Devices, Inc.

AD5542 - 2.7V TO 5.5V, SERIAL-IN

571

AD5341BRUZ

AD5341BRUZ

Analog Devices, Inc.

IC DAC 12BIT V-OUT 20TSSOP

66

AD7391ARU

AD7391ARU

Analog Devices, Inc.

DAC,SERIAL INPUT LOADING

4878

DAC8168ICPW

DAC8168ICPW

Texas Instruments

IC DAC 14BIT V-OUT 16TSSOP

37

MAX507BCWG+

MAX507BCWG+

Maxim Integrated

IC DAC 12BIT V-OUT 24SOIC

862580

AD5683RBCPZ-RL7

AD5683RBCPZ-RL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT 8LFCSP

0

AD7545GCQ

AD7545GCQ

Analog Devices, Inc.

DAC, 1 FUNC, PARALLEL, WORD INPU

752

DAC122S085CIMM

DAC122S085CIMM

Texas Instruments

DAC, 1 FUNC, SERIAL INPUT LOADIN

7249

AD7245AAR-REEL

AD7245AAR-REEL

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

786

DAC7541AKP

DAC7541AKP

Burr-Brown (Texas Instruments)

DAC, PARALLEL, WORD INPUT

1451

DAC8426AR/883C

DAC8426AR/883C

Analog Devices, Inc.

QUAD 8-BIT VOLTAGE OUT CMOS DAC

561

LTC2654BCUF-L16#PBF

LTC2654BCUF-L16#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 20QFN

0

MCP47CVB21-E/MF

MCP47CVB21-E/MF

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 10DFN

495

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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