Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
MCP47FVB12A1T-E/ST

MCP47FVB12A1T-E/ST

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8TSSOP

0

AD5324BRMZ-REEL7

AD5324BRMZ-REEL7

Analog Devices, Inc.

IC DAC 12BIT V-OUT 10MSOP

3313

LTC2630HSC6-LM8#TRPBF

LTC2630HSC6-LM8#TRPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT SC70-6

0

MCP4822T-E/SN

MCP4822T-E/SN

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8SOIC

1361

AD9779ABSVZ

AD9779ABSVZ

Analog Devices, Inc.

D/A CONVERTER, PARALLEL, WORD IN

7670

LTC2634CMSE-HMX10#TRPBF

LTC2634CMSE-HMX10#TRPBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 10MSOP

0

AD9146BCPZRL

AD9146BCPZRL

Analog Devices, Inc.

IC DAC 16BIT A-OUT 48LFCSP

0

LTC2000ACY-14#PBF

LTC2000ACY-14#PBF

Analog Devices, Inc.

IC DAC 14BIT A-OUT 170BGA

40

AD5734AREZ-REEL7

AD5734AREZ-REEL7

Analog Devices, Inc.

IC DAC 14BIT V-OUT 24TSSOP

0

LTC2634IMSE-LMX10#PBF

LTC2634IMSE-LMX10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 10MSOP

0

LTC2754BIUKG-16#PBF

LTC2754BIUKG-16#PBF

Analog Devices, Inc.

IC DAC 16BIT A-OUT 52QFN

0

MAX5203BEUB+

MAX5203BEUB+

Maxim Integrated

IC DAC 16BIT V-OUT 10UMAX

421

AD5305BRM

AD5305BRM

Analog Devices, Inc.

2.5V-5.5V, 500UA, QUAD 8-BIT DAC

5865

MAX547BEQH

MAX547BEQH

Analog Devices, Inc.

OCTAL, 3-BIT VOLTAGE OUTPUT DAC

111

LTC1657CGN#TRPBF

LTC1657CGN#TRPBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 28SSOP

0

LTC2636HDE-HMI12#TRPBF

LTC2636HDE-HMI12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14DFN

0

AD7542KN

AD7542KN

Analog Devices, Inc.

DAC, PARALLEL, 4 BITS INPUT

7019

AD5551BRZ

AD5551BRZ

Analog Devices, Inc.

IC DAC 14BIT V-OUT 8SOIC

62

AD9121BCPZ

AD9121BCPZ

Analog Devices, Inc.

IC DAC 14BIT A-OUT 72LFCSP

11

AD5392BCP-5-REEL7

AD5392BCP-5-REEL7

Analog Devices, Inc.

8-CH, SERIAL INPUT 14-BIT DAC

287

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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