Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
DAC-08EN

DAC-08EN

DAC, PARALLEL, 8 BITS

0

DAC7644EB/1KG4

DAC7644EB/1KG4

Texas Instruments

IC DAC 16BIT V-OUT 48SSOP

0

AD5380BST-5

AD5380BST-5

Analog Devices, Inc.

40-CHANNEL, 14-BIT, V-OUT DAC

640

MCP47FVB24T-20E/ST

MCP47FVB24T-20E/ST

Roving Networks / Microchip Technology

QUAD CHANNEL, 12-BIT, VOLATILE,

2500

AD5721RBRUZ-RL7

AD5721RBRUZ-RL7

Analog Devices, Inc.

AD5721 - 12-BIT , 5PPM REFERENCE

835

AD7834BN

AD7834BN

Analog Devices, Inc.

DAC, 4 CH, SERIAL INPUT LOADING

65

LTC2632HTS8-HI12#TRPBF

LTC2632HTS8-HI12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

MAX544BESA+

MAX544BESA+

Maxim Integrated

IC DAC 14BIT V-OUT 8SOIC

3100

LTC2632ACTS8-LX12#TRPBF

LTC2632ACTS8-LX12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

DAC70508MRTER

DAC70508MRTER

Texas Instruments

IC DAC 14BIT V-OUT 16WQFN

0

DAC8812IBPWR

DAC8812IBPWR

Texas Instruments

DAC8812 16-BIT, DUAL SERIAL INPU

86327

AD1958YRS

AD1958YRS

Analog Devices, Inc.

PLL/MULTIBIT SIGMA-DELTA DAC

3754

AD768AR

AD768AR

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

107

LTC2637CMS-LMX12#PBF

LTC2637CMS-LMX12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 16MSOP

0

AD5570ARS

AD5570ARS

Analog Devices, Inc.

16-BIT SERIAL INPUT DAC

4122

MCP48FVB28T-20E/ST

MCP48FVB28T-20E/ST

Roving Networks / Microchip Technology

OCTAL CHANNEL, 12-BIT, VOLATILE,

2500

AD9161BBCZRL

AD9161BBCZRL

Analog Devices, Inc.

IC DAC 11BIT A-OUT 169CSPBGA

0

LTC2657BCFE-L16#PBF

LTC2657BCFE-L16#PBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 20TSSOP

16

AD7537KP

AD7537KP

Analog Devices, Inc.

2 CH DAC, PARALLEL, 8 BITS INPUT

1712

MAX5154AEPE

MAX5154AEPE

Analog Devices, Inc.

DUAL, 12-BIT, VOLTAGE-OUT DAC

1289

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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