Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
LTC2637IMS-LZ8#PBF

LTC2637IMS-LZ8#PBF

Analog Devices, Inc.

OCTAL 8-BIT I2C VOUT DAC WITH 10

94

AD7849CR

AD7849CR

Analog Devices, Inc.

DAC,SERIAL INPUT LOADING

2483

AD9754AR

AD9754AR

Analog Devices, Inc.

IC DAC 14BIT A-OUT 28SOIC

7

LTC2634IMSE-LMX10#TRPBF

LTC2634IMSE-LMX10#TRPBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 10MSOP

0

AD7247ABRZ-REEL

AD7247ABRZ-REEL

Analog Devices, Inc.

IC DAC 12BIT V-OUT 24SOIC

0

LTC2631HTS8-HZ12#TRPBF

LTC2631HTS8-HZ12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

LTC2634CMSE-LMX12#TRPBF

LTC2634CMSE-LMX12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 10MSOP

0

AD5620BRJ-2500RL7

AD5620BRJ-2500RL7

Analog Devices, Inc.

SINGLE, 12-BIT NANODAC

751

5962-88766013A

5962-88766013A

Analog Devices, Inc.

DGTL-LINEAR, 12-B CMOS DAC W/ OU

930

LTC2634HMSE-HZ8#TRPBF

LTC2634HMSE-HZ8#TRPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 10MSOP

0

LTC2636CMS-HMI10#TRPBF

LTC2636CMS-HMI10#TRPBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 16MSOP

0

LTC7545AKN#PBF

LTC7545AKN#PBF

Analog Devices, Inc.

IC DAC 12BIT A-OUT 20DIP

0

AD7834BRZ-REEL

AD7834BRZ-REEL

Analog Devices, Inc.

IC DAC 14BIT V-OUT 28SOIC

0

ADV7148KP50

ADV7148KP50

Analog Devices, Inc.

CONTINUOUS EDGE GRAPHICS RAM-DAC

126

LTC2637CDE-HZ12#PBF

LTC2637CDE-HZ12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14DFN

0

LTC2672IUH-16#PBF

LTC2672IUH-16#PBF

Analog Devices, Inc.

5CH 300MA 16BIT CURRENTSOURCEOUT

0

LTC2637CDE-HMX12#PBF

LTC2637CDE-HMX12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14DFN

0

AD7547KPZ

AD7547KPZ

Analog Devices, Inc.

IC DAC 12BIT A-OUT 28PLCC

105

LTC2642CMS-14#TRPBF

LTC2642CMS-14#TRPBF

Analog Devices, Inc.

IC DAC 14BIT V-OUT 10MSOP

0

MX7549JN

MX7549JN

Analog Devices, Inc.

DUAL 12-BIT MPU COMPATABLE DAC

228

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.

RFQ BOM Call Skype Email
Top