Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
MCP48FEB14T-20E/ST

MCP48FEB14T-20E/ST

Roving Networks / Microchip Technology

QUAD CHANNEL, 10-BIT, EEPROM, SP

2500

AD9744ACPZRL7

AD9744ACPZRL7

Analog Devices, Inc.

IC DAC 14BIT A-OUT 32LFCSP

1068

DAC8412EP

DAC8412EP

Analog Devices, Inc.

QUAD 12-BIT MULTIPLYING DAC

1347

LTC2637CMS-LMX8#PBF

LTC2637CMS-LMX8#PBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 16MSOP

0

AD9709AST

AD9709AST

Analog Devices, Inc.

DAC, PARALLEL, 8 BITS INPUT

7656

AD5316BRU

AD5316BRU

Analog Devices, Inc.

2.5V-5.5V, QUAD 10-BIT DAC

4214

AD5724AREZ-REEL7

AD5724AREZ-REEL7

Analog Devices, Inc.

IC DAC 12BIT V-OUT 24TSSOP

40

DAC8012ER

DAC8012ER

Analog Devices, Inc.

12-BIT MULTIPLYING D/A CONVERTER

1535

MX7538KN

MX7538KN

Analog Devices, Inc.

MCU CMOS 14-BIT DAC

788

DAC7634EBG4

DAC7634EBG4

Texas Instruments

IC DAC 16BIT V-OUT 48SSOP

0

LTC2600IGN#PBF

LTC2600IGN#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 16SSOP

1256

DAC714HB

DAC714HB

Burr-Brown (Texas Instruments)

DAC, SERIAL INPUT

33294

TLV5613CPWR

TLV5613CPWR

Texas Instruments

DAC, PARALLEL, WORD INPUT

2000

MCP48CVB22-E/MG

MCP48CVB22-E/MG

Roving Networks / Microchip Technology

IC DAC 12BIT 16QFN

0

LTC2634CMSE-HMX8#PBF

LTC2634CMSE-HMX8#PBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 10MSOP

0

LTC2624CGN#TRPBF

LTC2624CGN#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 16SSOP

0

LTC2611CDD#TRPBF

LTC2611CDD#TRPBF

Analog Devices, Inc.

IC DAC 14BIT V-OUT 10DFN

0

AD7545AKR

AD7545AKR

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

2203

AD7303BRZ-REEL

AD7303BRZ-REEL

Analog Devices, Inc.

IC DAC 8BIT V-OUT 8SOIC

0

LTC2654BIUF-L16#PBF

LTC2654BIUF-L16#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 20QFN

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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