Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
LTC2632ACTS8-LI12#TRMPBF

LTC2632ACTS8-LI12#TRMPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

469

AD767KPZ

AD767KPZ

Analog Devices, Inc.

IC DAC 12BIT V-OUT 28PLCC

0

LTC2642IDD-12#PBF

LTC2642IDD-12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 10DFN

832

R2A20178NP#W0

R2A20178NP#W0

Renesas Electronics America

IC DAC 8BIT V-OUT 24HWQFN

0

AD5421BCPZ-REEL7

AD5421BCPZ-REEL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT 32LFCSP

428

DAC7615EB/1K

DAC7615EB/1K

Texas Instruments

IC DAC 12BIT V-OUT 20SSOP

0

DAC8012FPC

DAC8012FPC

Analog Devices, Inc.

12-BIT MULTIPLYING D/A CONVERTER

5029

LTC2657BCUFD-L16#PBF

LTC2657BCUFD-L16#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 20QFN

0

LTC7545ACSW#TRPBF

LTC7545ACSW#TRPBF

Analog Devices, Inc.

IC DAC 12BIT A-OUT 20SOIC

0

MAX507BCWG+T

MAX507BCWG+T

Maxim Integrated

IC DAC 12BIT V-OUT 24SOIC

0

MX7542JCWE

MX7542JCWE

Analog Devices, Inc.

UP-COMPATIBLE 12-BIT DAC

683

DAC60508MCYZFT

DAC60508MCYZFT

Texas Instruments

IC DAC 12BIT V-OUT 16DSBGA

250

MX7226KCWP+T

MX7226KCWP+T

Maxim Integrated

IC DAC 8BIT V-OUT 20SOIC

0

AD5300BRMZ

AD5300BRMZ

Analog Devices, Inc.

IC DAC 8BIT V-OUT 8MSOP

20

AD7541AKP-REEL

AD7541AKP-REEL

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

1000

AD7541ASQ

AD7541ASQ

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

874

LTC2634HUD-HZ8#PBF

LTC2634HUD-HZ8#PBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 16QFN

0

DAC6571IDBVR

DAC6571IDBVR

Texas Instruments

IC DAC 10BIT V-OUT SOT23-6

3226

LTC2632HTS8-LI8#TRPBF

LTC2632HTS8-LI8#TRPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT TSOT23-8

0

AD7535JN

AD7535JN

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

9

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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