Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
DAC8565IBPWRG4

DAC8565IBPWRG4

Texas Instruments

IC DAC 16BIT V-OUT 16TSSOP

0

DAC8760IPWPR

DAC8760IPWPR

Texas Instruments

IC DAC 16BIT V OR A-OUT 24HTSSOP

3247

DAC8560IADGKR

DAC8560IADGKR

Texas Instruments

IC DAC 16BIT V-OUT 8VSSOP

813

DAC7562SDSCR

DAC7562SDSCR

Texas Instruments

IC DAC 12BIT V-OUT 10WSON

2207

DAC908U

DAC908U

Texas Instruments

DAC908 8-BIT 165-MSPS DIGITAL-TO

11163

DAC902E/2K5

DAC902E/2K5

Texas Instruments

DAC902 12-BIT 165-MSPS DIGITAL-T

12326

THS5661AIPWR

THS5661AIPWR

Texas Instruments

IC DAC 12BIT A-OUT 28TSSOP

646

DAC8881SRGER

DAC8881SRGER

Texas Instruments

DAC, SERIAL INPUT

5226

DAC8565IDPWR

DAC8565IDPWR

Texas Instruments

IC DAC 16BIT V-OUT 16TSSOP

0

DAC7564IAPW

DAC7564IAPW

Texas Instruments

IC DAC 12BIT V-OUT 16TSSOP

282

DAC7801KP

DAC7801KP

Texas Instruments

DAC, PARALLEL, 8 BITS INPUT

24990

DAC7725NB/750G4

DAC7725NB/750G4

Texas Instruments

IC DAC 12BIT V-OUT 28PLCC

0

DAC7654YT

DAC7654YT

Texas Instruments

DAC, 1 FUNC, SERIAL INPUT LOADIN

17722

DAC904E/2K5

DAC904E/2K5

Texas Instruments

DAC904 14-BIT 165-MSPS DIGITAL-T

93891

DAC8820IBDB

DAC8820IBDB

Texas Instruments

IC DAC 16BIT A-OUT 28SSOP

178

THS5651AIDW

THS5651AIDW

Texas Instruments

THS5651A 10-BIT, 125-MSPS DIGITA

5793

DAC7614E/1K

DAC7614E/1K

Texas Instruments

IC DAC 12BIT V-OUT 20SSOP

98

THS5641AIDWR

THS5641AIDWR

Texas Instruments

THS5641A 8-BIT, 100-MSPS DIGITAL

8480

DAC5682ZIRGCR

DAC5682ZIRGCR

Texas Instruments

DAC5682Z DUAL-CHANNEL, 16-BIT, 1

133

TLV5636CDGK

TLV5636CDGK

Texas Instruments

IC DAC 12BIT V-OUT 8VSSOP

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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