Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
LTC2668HUJ-16#TRPBF

LTC2668HUJ-16#TRPBF

Analog Devices, Inc.

IC DAC 16BIT V-OUT 40QFN

0

AD5311RBRMZ

AD5311RBRMZ

Analog Devices, Inc.

IC DAC 10BIT V-OUT 10MSOP

30

AD9135BCPZ

AD9135BCPZ

Analog Devices, Inc.

D/A CONVERTER, SERIAL INPUT LOAD

22

AD5062BRJZ-2REEL7

AD5062BRJZ-2REEL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT SOT23-8

0

MAX548AEUA

MAX548AEUA

Analog Devices, Inc.

DUAL 8-BIT VOLTAGE-OUT DAC

2429

AD7543GKNZ

AD7543GKNZ

Analog Devices, Inc.

DAC, 1 FUNC, SERIAL INPUT LOADIN

7610

AD7542KRZ

AD7542KRZ

Analog Devices, Inc.

PARALLEL, 4 BITS INPUT LOADING,

13196

AD9712BTE/883B

AD9712BTE/883B

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

0

AD7240BQ

AD7240BQ

Analog Devices, Inc.

DAC,PARALLEL, WORD INPUT

916

AD768ARZ

AD768ARZ

Analog Devices, Inc.

IC DAC 16BIT A-OUT 28SOIC

589

AD7845TQ

AD7845TQ

Analog Devices, Inc.

DAC, 1 FUNC, PARALLEL, WORD INPU

1036

DAC8248AW/883C

DAC8248AW/883C

Analog Devices, Inc.

DUAL 12-BIT (8-BIT BYTE) DOUBLE-

7

LTC1450LCN#PBF

LTC1450LCN#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 24DIP

0

5962-87789012A

5962-87789012A

Analog Devices, Inc.

DUAL MARKED (AD558SE/883B)

0

AD5668BRUZ-2REEL7

AD5668BRUZ-2REEL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT 16TSSOP

540

AD5310BRTZ-REEL7

AD5310BRTZ-REEL7

Analog Devices, Inc.

IC DAC 10BIT V-OUT SOT23-6

2863

AD5668BCPZ-2-RL7

AD5668BCPZ-2-RL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT 16LFCSP

1386

LTC2637CDE-LMI12#PBF

LTC2637CDE-LMI12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14DFN

0

AD5320BRT-500RL7

AD5320BRT-500RL7

Analog Devices, Inc.

2.7-5.5V R-R OUTPUT 12-BIT DAC

42382

LTC2636CDE-HZ12#PBF

LTC2636CDE-HZ12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14DFN

31

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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