Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
LTC2640HTS8-HZ12#TRPBF

LTC2640HTS8-HZ12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

AD664AJ

AD664AJ

Analog Devices, Inc.

DAC, 4 FUNC, PARALLEL, WORD INPU

969

AD5541ABRMZ

AD5541ABRMZ

Analog Devices, Inc.

IC DAC 16BIT V-OUT 10MSOP

347

LTC1595BCS8#TRPBF

LTC1595BCS8#TRPBF

Analog Devices, Inc.

IC DAC 16BIT A-OUT 8SOIC

2190

DAC7641Y/2K

DAC7641Y/2K

Texas Instruments

DAC, PARALLEL, WORD INPUT

11764

LTC2634CUD-LZ12#PBF

LTC2634CUD-LZ12#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 16QFN

0

LTC1599BCG#TRPBF

LTC1599BCG#TRPBF

Analog Devices, Inc.

IC DAC 16BIT A-OUT 24SSOP

0

AD7537LNZ

AD7537LNZ

Analog Devices, Inc.

DAC, 2 FUNC, PARALLEL, 8 BITS IN

4091

DAC7632VFBTG4

DAC7632VFBTG4

Texas Instruments

IC DAC 16BIT V-OUT 32LQFP

0

DAC7741YL/250

DAC7741YL/250

Texas Instruments

DAC7741 16-BIT, SINGLE CHANNEL,

14240

CS4392-KSR

CS4392-KSR

Cirrus Logic

24-BIT, 192 KHZ STEREO DAC

2000

AD5025BRUZ-REEL7

AD5025BRUZ-REEL7

Analog Devices, Inc.

IC DAC 12BIT V-OUT 14TSSOP

0

MCP47FVB22A0-E/ST

MCP47FVB22A0-E/ST

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8TSSOP

0

LTC2632HTS8-HZ12#TRPBF

LTC2632HTS8-HZ12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

LTC2636IMS-HMI10#PBF

LTC2636IMS-HMI10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 16MSOP

17

ISL5957IAZ

ISL5957IAZ

Intersil (Renesas Electronics America)

IC DAC 14BIT A-OUT 28TSSOP

0

DAC8555IPW

DAC8555IPW

Texas Instruments

IC DAC 16BIT V-OUT 16TSSOP

0

AD5065BRUZ-REEL7

AD5065BRUZ-REEL7

Analog Devices, Inc.

IC DAC 16BIT V-OUT 14TSSOP

0

MCP4801T-E/MC

MCP4801T-E/MC

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 8DFN

2711

MCP4812-E/P

MCP4812-E/P

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8DIP

237

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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