Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
AD7245JPZ-REEL

AD7245JPZ-REEL

Analog Devices, Inc.

DAC, 1 FUNC, PARALLEL, WORD INPU

740

DAC708BH

DAC708BH

Burr-Brown (Texas Instruments)

DAC, SERIAL, PARALLEL

145

LTC2654BCUF-L16#TRPBF

LTC2654BCUF-L16#TRPBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 20QFN

0

DAC70508MRTET

DAC70508MRTET

Texas Instruments

IC DAC 14BIT V-OUT 16WQFN

205

MAX520BEAP+T

MAX520BEAP+T

Maxim Integrated

IC DAC 8BIT V-OUT 20SSOP

0

MAX520ACWE+T

MAX520ACWE+T

Maxim Integrated

IC DAC 8BIT V-OUT 16SOIC

0

DAC8212HP

DAC8212HP

Analog Devices, Inc.

DUAL 12-BIT MULTIPLYING DAC

637

DAC8413EP

DAC8413EP

Analog Devices, Inc.

QUAD 12-BIT VOLTAGE OUTPUT DAC

395

AD5602BKSZ-2REEL7

AD5602BKSZ-2REEL7

Analog Devices, Inc.

IC DAC 8BIT V-OUT SC70-6

364

DAC7742Y/250

DAC7742Y/250

Texas Instruments

DAC, 1 FUNC, PARALLEL, WORD INPU

43929

MAX5442AEUB+T

MAX5442AEUB+T

Maxim Integrated

IC DAC 16BIT V-OUT 10UMAX

5000

DAC8043AEP

DAC8043AEP

Analog Devices, Inc.

12-BIT SERIAL IN MULTIPLYING DAC

15105

LTC2637HDE-LZ10#PBF

LTC2637HDE-LZ10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 14DFN

0

AD7847ARZ-REEL

AD7847ARZ-REEL

Analog Devices, Inc.

IC DAC 12BIT V-OUT 24SOIC

21

DAC5681IRGCR

DAC5681IRGCR

Texas Instruments

DAC5681 16-BIT, 1.0-GSPS DIGITAL

79359

MCP4921T-E/SN

MCP4921T-E/SN

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8SOIC

535

MAX525BEAP+

MAX525BEAP+

Maxim Integrated

IC DAC 12BIT V-OUT 20SSOP

95924

AD5683RARMZ

AD5683RARMZ

Analog Devices, Inc.

IC DAC 16BIT V-OUT 10MSOP

0

DAC7641YB/2K

DAC7641YB/2K

Texas Instruments

DAC, PARALLEL, WORD INPUT

5988

AD5443YRMZ-REEL

AD5443YRMZ-REEL

Analog Devices, Inc.

IC DAC 12BIT A-OUT 10MSOP

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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