Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
MCP4811-E/SN

MCP4811-E/SN

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8SOIC

337

MCP47FVB01A3T-E/ST

MCP47FVB01A3T-E/ST

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 8TSSOP

0

MCP4922-E/SL

MCP4922-E/SL

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 14SOIC

0

MCP4706A3T-E/MAY

MCP4706A3T-E/MAY

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 6DFN

0

MCP48FVB12-E/UN

MCP48FVB12-E/UN

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 10MSOP

27

MCP47FVB22A1-E/ST

MCP47FVB22A1-E/ST

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8TSSOP

0

MCP4728T-E/UN

MCP4728T-E/UN

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 10MSOP

21149

MCP47FVB11A1T-E/ST

MCP47FVB11A1T-E/ST

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8TSSOP

0

MCP4901-E/SN

MCP4901-E/SN

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 8SOIC

784

MCP47CVB02-E/UN

MCP47CVB02-E/UN

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 10MSOP

1658

MCP4726A1T-E/CH

MCP4726A1T-E/CH

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT SOT23-6

1315

MCP4726A3T-E/CH

MCP4726A3T-E/CH

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT SOT23-6

0

MCP47FEB02A3-E/ST

MCP47FEB02A3-E/ST

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 8TSSOP

0

MCP48FEB24T-20E/ST

MCP48FEB24T-20E/ST

Roving Networks / Microchip Technology

QUAD CHANNEL, 12-BIT, EEPROM, SP

2490

MCP47FVB12A3-E/ST

MCP47FVB12A3-E/ST

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8TSSOP

0

MCP47CVB01-E/MF

MCP47CVB01-E/MF

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 10DFN

697

MCP47FEB11A0T-E/ST

MCP47FEB11A0T-E/ST

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8TSSOP

0

MCP47CMB01-E/MF

MCP47CMB01-E/MF

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 10DFN

1168

MCP47FEB21A3T-E/ST

MCP47FEB21A3T-E/ST

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8TSSOP

0

MCP48CVB12-E/UN

MCP48CVB12-E/UN

Roving Networks / Microchip Technology

IC DAC 10BIT 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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