Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
AD7228ABNZ

AD7228ABNZ

Analog Devices, Inc.

IC DAC 8BIT V-OUT 24DIP

17

AD7848SQ

AD7848SQ

Analog Devices, Inc.

D/A CONVERTER, 12-BIT

92

PM7542HS

PM7542HS

Analog Devices, Inc.

M-PROC COMPATIBLE 12-BIT DAC

765

AD5305BRMZ

AD5305BRMZ

Analog Devices, Inc.

IC DAC 8BIT V-OUT 10MSOP

14

MAX520BCAP

MAX520BCAP

Analog Devices, Inc.

QUAD, SERIAL 8-BIT DAC

954

LTC1599ACG#TRPBF

LTC1599ACG#TRPBF

Analog Devices, Inc.

IC DAC 16BIT A-OUT 24SSOP

0

AD5370BCPZ

AD5370BCPZ

Analog Devices, Inc.

IC DAC 16BIT V-OUT 64LFCSP

209

MCP47FVB04T-E/MQ

MCP47FVB04T-E/MQ

Roving Networks / Microchip Technology

QUAD CHANNEL, 8-BIT, VOLATILE, I

3290

MAX510BCPE+

MAX510BCPE+

Maxim Integrated

IC DAC 8BIT V-OUT 16DIP

35325

AD7390ANZ

AD7390ANZ

Analog Devices, Inc.

IC DAC 12BIT V-OUT 8DIP

105

MAX5547ETA+

MAX5547ETA+

Analog Devices, Inc.

DUAL, 10-BIT DAC

11059

DAC38RF82IAAVR

DAC38RF82IAAVR

Texas Instruments

IC DAC 14BIT V-OUT 144FCBGA

0

LTC2636HDE-HMI8#TRPBF

LTC2636HDE-HMI8#TRPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 14DFN

0

DAC7621EB/1K

DAC7621EB/1K

Texas Instruments

DAC, PARALLEL, WORD INPUT

10920

LTC2641IMS8-12#TRPBF

LTC2641IMS8-12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 8MSOP

0

LTC2633CTS8-LO8#TRPBF

LTC2633CTS8-LO8#TRPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT TSOT23-8

0

MAX545ACSD+

MAX545ACSD+

Maxim Integrated

IC DAC 14BIT V-OUT 14SOIC

0

DAC8564IBPW

DAC8564IBPW

Texas Instruments

IC DAC 16BIT V-OUT 16TSSOP

0

AD7248AANZ

AD7248AANZ

Analog Devices, Inc.

IC DAC 12BIT V-OUT 20DIP

90

AD9136BCPZRL

AD9136BCPZRL

Analog Devices, Inc.

IC DAC 16BIT A-OUT 88LFCSP

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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