Data Acquisition - Analog to Digital Converters (ADC)

Image Part Number Description / PDF Quantity Rfq
AD7823YRMZ-REEL7

AD7823YRMZ-REEL7

Analog Devices, Inc.

ADC, SUCCESSIVE APPROXIMATION, 8

1000

AD7701AN

AD7701AN

Analog Devices, Inc.

16-BIT DELTA-SIGMA ADC, SERIAL

2739

MAX146BCPP

MAX146BCPP

Analog Devices, Inc.

8-CHANNEL, SERIAL 12-BIT ADCS

88

LTC2494IUHF#TRPBF

LTC2494IUHF#TRPBF

Analog Devices, Inc.

IC ADC 16BIT SIGMA-DELTA 38QFN

0

LTC2223CUK#PBF

LTC2223CUK#PBF

Analog Devices, Inc.

IC ADC 12BIT PIPELINED 48QFN

0

AD7677ASTZ

AD7677ASTZ

Analog Devices, Inc.

IC ADC 16BIT SAR 48LQFP

451

LTC2259IUJ-12#TRPBF

LTC2259IUJ-12#TRPBF

Analog Devices, Inc.

IC ADC 12BIT PIPELINED 40QFN

0

AD7572AJRZ10-REEL7

AD7572AJRZ10-REEL7

Analog Devices, Inc.

ADC, SUCCESSIVE APPROXIMATION, 1

724

MAX120CAG

MAX120CAG

Analog Devices, Inc.

12-BIT ADC WITH T/H AND REF

677

AD9446BSVZ-100

AD9446BSVZ-100

Analog Devices, Inc.

IC ADC 16BIT PIPELINED 100TQFP

51

LTC2447CUHF#TRPBF

LTC2447CUHF#TRPBF

Analog Devices, Inc.

IC ADC 24BIT SIGMA-DELTA 38QFN

0

MAX1247AEEE

MAX1247AEEE

Analog Devices, Inc.

4-CHANNEL, SERIAL 12-BIT ADC

0

MAX11321ATJ+

MAX11321ATJ+

Analog Devices, Inc.

MAX11321 1MSPS, 10-BIT, 4-CHANNE

2520

LTC1275ACSW#TRPBF

LTC1275ACSW#TRPBF

Analog Devices, Inc.

IC ADC 12BIT SAR 24SOIC

0

AD7678ASTZ

AD7678ASTZ

Analog Devices, Inc.

IC ADC 18BIT SAR 48LQFP

0

AD7572SE05

AD7572SE05

Analog Devices, Inc.

12-BIT SAR PARALLEL ADC

27

AD7991YRJZ-0RL

AD7991YRJZ-0RL

Analog Devices, Inc.

IC ADC 12BIT SAR SOT23-8

0

AD7820KR

AD7820KR

Analog Devices, Inc.

8-BIT FLASH ADC, 8-BIT ACCESS

28488

AD876JST

AD876JST

Analog Devices, Inc.

10-BIT ADC PARALLEL, WORD ACCESS

1370

AD7980BCPZ-RL

AD7980BCPZ-RL

Analog Devices, Inc.

IC ADC 16BIT SAR 10LFCSP-WD

0

Data Acquisition - Analog to Digital Converters (ADC)

1. Overview

Analog-to-Digital Converters (ADCs) are semiconductor devices that convert continuous analog signals into discrete digital values. This core functionality enables digital systems to process real-world signals such as temperature, pressure, audio, and sensor data. ADCs are fundamental components in modern electronics, serving critical roles in communication systems, medical equipment, industrial automation, and consumer electronics. Their performance directly impacts system accuracy, speed, and overall efficiency.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Successive Approximation ADCMedium-speed, high accuracy, moderate power consumptionIndustrial control systems, precision measurement
Integrating ADCHigh noise rejection, low speed, excellent linearityDigital multimeters, weigh scales
Pipeline ADCHigh-speed operation with moderate resolutionWireless communication base stations, video processing
Delta-Sigma ( ) ADCHigh resolution, low noise, oversampling architectureAudio processing, precision sensor interfaces
Flash ADCExtremely high-speed conversion, limited resolutionRadar systems, high-speed oscilloscopes

3. Structure and Components

Typical ADC architecture includes: - Sample-and-Hold Circuit: Captures and stabilizes input signal - Quantizer: Maps analog values to discrete levels - Encoder: Converts quantized values to binary code - Reference Voltage Circuit: Provides stable voltage Modern ADCs integrate additional components like programmable gain amplifiers and digital filters. Fabricated using CMOS or BiCMOS processes, they come in packages like QFP, TSSOP, and BGA with pin counts ranging from 8 to 256.

4. Key Technical Specifications

ParameterDescriptionImportance
ResolutionNumber of digital output bitsDetermines measurement precision
Sampling RateMaximum conversion speed (SPS)Defines signal bandwidth capability
Signal-to-Noise Ratio (SNR)Dynamic range measurementImpacts signal fidelity
Integral Nonlinearity (INL)Deviation from ideal transfer functionCritical for measurement accuracy
Power ConsumptionOperating current/voltage requirementsAffects system efficiency and thermal design

5. Application Fields

  • Telecommunications: 5G base stations, optical transceivers
  • Medical Equipment: MRI scanners, patient monitoring systems
  • Industrial Automation: PLC systems, precision sensors
  • Consumer Electronics: Smartphones, wearables
  • Automotive: LiDAR systems, battery management

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Specifications
TI (Texas Instruments)ADS928324-bit ADC, 2MSPS, 2LSB INL
Analog DevicesAD762116-bit SAR ADC, 3MSPS, 85dB SNR
Maxim IntegratedMAX1190516-bit pipeline ADC, 125MSPS
STMicroelectronicsLTC2389-1818-bit SAR ADC, 1MSPS, rail-to-rail input

7. Selection Guidelines

Key considerations include: - Application Requirements: Match resolution/speed to system needs - Environmental Conditions: Temperature range, vibration resistance - Cost Constraints: Balance performance with budget - Supply Chain: Availability, package compatibility - Support Features: Required interfaces (SPI, I2C), calibration capabilities

8. Industry Trends

Emerging trends include: - Development of 32-bit ADCs for precision applications - Integration with AI acceleration for edge computing - Energy-efficient designs for IoT devices - High-temperature ADCs for automotive applications - Advanced packaging technologies (3D stacking) - Software-defined radio ADCs with tunable bandwidth

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