Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
ISL5927INZ

ISL5927INZ

Intersil (Renesas Electronics America)

IC DAC 14BIT A-OUT 48TQFP

0

ISL5727INZ

ISL5727INZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 48TQFP

0

ISL5627INZ

ISL5627INZ

Intersil (Renesas Electronics America)

IC DAC 8BIT A-OUT 48TQFP

0

X79001V20I

X79001V20I

Intersil (Renesas Electronics America)

IC DAC 12BIT V-OUT 20TSSOP

0

HI5728INZ

HI5728INZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 48LQFP

0

ISL5761IAZ

ISL5761IAZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 28TSSOP

0

ISL5857IB

ISL5857IB

Intersil (Renesas Electronics America)

IC DAC 12BIT A-OUT 28SOIC

0

HI5628IN

HI5628IN

Intersil (Renesas Electronics America)

IC DAC 8BIT A-OUT 48TQFP

0

ISL5729INZ

ISL5729INZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 48TQFP

0

X79000V20IT1

X79000V20IT1

Intersil (Renesas Electronics America)

IC DAC 12BIT V-OUT 20TSSOP

0

ISL5857IBZ

ISL5857IBZ

Intersil (Renesas Electronics America)

IC DAC 12BIT A-OUT 28SOIC

0

ISL5761/2IA

ISL5761/2IA

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 28TSSOP

0

ISL5629INZ

ISL5629INZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 48TQFP

0

ISL5827INZ

ISL5827INZ

Intersil (Renesas Electronics America)

IC DAC 12BIT A-OUT 48TQFP

0

X79001V20IT1

X79001V20IT1

Intersil (Renesas Electronics America)

IC DAC 12BIT V-OUT 20TSSOP

0

ISL5761IB

ISL5761IB

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 28SOIC

0

ISL5757IBZ

ISL5757IBZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 28SOIC

0

HI5728/6INZ

HI5728/6INZ

Intersil (Renesas Electronics America)

IC DAC 10BIT A-OUT 48TQFP

0

CA3338MZ96

CA3338MZ96

Intersil (Renesas Electronics America)

IC DAC 8BIT V-OUT 16SOIC

0

HI3-DAC80V-5

HI3-DAC80V-5

Intersil (Renesas Electronics America)

IC DAC 12BIT V-OUT 24DIP

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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