Data Acquisition - Digital to Analog Converters (DAC)

Image Part Number Description / PDF Quantity Rfq
ISL5861/2IA

ISL5861/2IA

Intersil (Renesas Electronics America)

DAC, PARALLEL, WORD INPUT

340

DAC8532IDGKR

DAC8532IDGKR

Texas Instruments

IC DAC 16BIT V-OUT 8VSSOP

2792

MCP47FEB21A3-E/ST

MCP47FEB21A3-E/ST

Roving Networks / Microchip Technology

IC DAC 12BIT V-OUT 8TSSOP

0

LTC1596AISW#PBF

LTC1596AISW#PBF

Analog Devices, Inc.

IC DAC 16BIT A-OUT 16SOIC

60

DAC7634EB/1K

DAC7634EB/1K

Texas Instruments

DAC, SERIAL INPUT

1850

HI5741BIP

HI5741BIP

14-BIT, 100MSPS, HIGH SPEED DAC

1103

DAC5652AIRSLR

DAC5652AIRSLR

Texas Instruments

IC DAC 10BIT A-OUT 48VQFN

0

MAX5722AUA+

MAX5722AUA+

Maxim Integrated

IC DAC 12BIT V-OUT 8UMAX

967850

AD7547LP-REEL

AD7547LP-REEL

Analog Devices, Inc.

2 CHANNEL DAC, PARALLEL

1454

MX7547JP+T

MX7547JP+T

Maxim Integrated

IC DAC 12BIT A-OUT 28PLCC

0

LTC2634CUD-LZ10#TRPBF

LTC2634CUD-LZ10#TRPBF

Analog Devices, Inc.

IC DAC 10BIT V-OUT 16QFN

0

AD7945ARSZ-B

AD7945ARSZ-B

Analog Devices, Inc.

IC DAC 12BIT A-OUT 20SSOP

97

AD8802AR

AD8802AR

Analog Devices, Inc.

DAC, 12 FUNC, SERIAL INPUT

2168

MAX5705BATB+T

MAX5705BATB+T

Maxim Integrated

IC DAC 12BIT V-OUT 10TDFN

22107500

MAX5443ACUA

MAX5443ACUA

Analog Devices, Inc.

SERIAL, VOLTAGE-OUT, 16-BIT DAC

1069

LTC2635HMSE-HMI12#TRPBF

LTC2635HMSE-HMI12#TRPBF

Analog Devices, Inc.

IC DAC 12BIT V-OUT 10MSOP

0

AD7305BRU

AD7305BRU

Analog Devices, Inc.

DAC, PARALLEL, 8 BITS INPUT

1161

AD7535TQ

AD7535TQ

Analog Devices, Inc.

DAC, PARALLEL, WORD INPUT

142

MX7534JCWP+

MX7534JCWP+

Maxim Integrated

IC DAC 14BIT A-OUT 20SOIC

0

DAC80508ZCYZFR

DAC80508ZCYZFR

Texas Instruments

IC DAC 16BIT V-OUT 16DSBGA

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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