Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
DAC8412BT/883C

DAC8412BT/883C

Analog Devices, Inc.

QUAD, 12-BIT DAC VOLTAGE OUTPUT

1056

LTC2634CUD-HMI8#PBF

LTC2634CUD-HMI8#PBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT 16QFN

128

MCP47FEB01A3T-E/ST

MCP47FEB01A3T-E/ST

Roving Networks / Microchip Technology

IC DAC 8BIT V-OUT 8TSSOP

0

AD7228KR

AD7228KR

Analog Devices, Inc.

8-CH DAC, PARALLEL, 8 BITS INPUT

6348

MCP47FEB18T-E/MQ

MCP47FEB18T-E/MQ

Roving Networks / Microchip Technology

OCTAL CHANNEL, 10-BIT, EEPROM, I

3300

LTC2633CTS8-LZ8#TRMPBF

LTC2633CTS8-LZ8#TRMPBF

Analog Devices, Inc.

IC DAC 8BIT V-OUT TSOT23-8

464

AD9740ACPZ

AD9740ACPZ

Analog Devices, Inc.

IC DAC 10BIT A-OUT 32LFCSP

53

AD5044BRUZ

AD5044BRUZ

Analog Devices, Inc.

AD5044 - FULLY ACCURATE, 14-BIT

139

AD9709ASTRL

AD9709ASTRL

Analog Devices, Inc.

DAC, PARALLEL, 8 BITS INPUT

21601

LTC2640AITS8-HM12#TRMPBF

LTC2640AITS8-HM12#TRMPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT TSOT23-8

0

MAX5183BEEI+T

MAX5183BEEI+T

Maxim Integrated

IC DAC 10BIT V-OUT 28QSOP

0

DAC667KP

DAC667KP

Texas Instruments

DAC, PARALLEL, WORD INPUT

9

5962-87701032A

5962-87701032A

Analog Devices, Inc.

DUAL MARKED (AD7528UE/883B)

1817

DAC3151IRGCR

DAC3151IRGCR

Texas Instruments

IC DAC 10BIT A-OUT 64VQFN

0

AD5725ARSZ-1500RL7

AD5725ARSZ-1500RL7

Analog Devices, Inc.

IC DAC 12BIT V-OUT 28SSOP

1844

LTC2621IDD-1#PBF

LTC2621IDD-1#PBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 10DFN

0

AD664SD-BIP/883B

AD664SD-BIP/883B

Analog Devices, Inc.

DAC, 4 FUNC, PARALLEL, WORD INPU

55

TLC5615IP

TLC5615IP

Texas Instruments

IC DAC 10BIT V-OUT 8DIP

483

MCP4911T-E/MS

MCP4911T-E/MS

Roving Networks / Microchip Technology

IC DAC 10BIT V-OUT 8MSOP

0

LTC2636CDE-LMX10#PBF

LTC2636CDE-LMX10#PBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 14DFN

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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