Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
AD7824LN Analog Devices, Inc.	8-BIT FLASH ADC, 4 CHANNEL	113
AD7091RBRMZ-RL7 Analog Devices, Inc.	IC ADC 12BIT SAR 10MSOP	972
AD7476BRTZ-R2 Analog Devices, Inc.	IC ADC 12BIT SAR SOT23-6	269
LTC2310HMSE-14#PBF Analog Devices, Inc.	IC ADC 14BIT SAR 16MSOP	35
LTC2281IUP#TRPBF Analog Devices, Inc.	IC ADC 10BIT PIPELINED 64QFN	0
AD7876BRZ Analog Devices, Inc.	IC ADC 12BIT SAR 24SOIC	7
MAX150BCPP Analog Devices, Inc.	8 BIT ADC	0
AD7492AR-5 Analog Devices, Inc.	12-BIT SAR PARALLEL ADC	10327
LTC1604ACG#TRPBF Analog Devices, Inc.	IC ADC 16BIT SAR 36SSOP	0
AD7899AR-2REEL Analog Devices, Inc.	14-BIT SAR ADC, 2 CHANNEL	964
MAX187AEPA Analog Devices, Inc.	12-BIT SERIAL ADC	856
AD7811YR-REEL Analog Devices, Inc.	10-BIT SAR ADC, 4 CH, SERIAL	1728
AD1877JR Analog Devices, Inc.	16-BIT SIGMA DELTA STEREO ADC	261
AD572AD Analog Devices, Inc.	12-BIT SAR PARALLEL ADC	176
LTC2157IUP-14#PBF Analog Devices, Inc.	IC ADC 14BIT PIPELINED 64QFN	9
LTC2378CDE-16#TRPBF Analog Devices, Inc.	IC ADC 16BIT SAR 16DFN	0
AD7572AJR03-REEL Analog Devices, Inc.	12-BIT SAR PARALLEL ADC	7990
LTC2404IG#PBF Analog Devices, Inc.	IC ADC 24BIT SIGMA-DELTA 28SSOP	98
LTC1853IFW#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 48TSSOP	394
LTC2377IDE-20#TRPBF Analog Devices, Inc.	IC ADC 20BIT SAR 16DFN	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

Type	Functional Characteristics	Application Examples
Successive Approximation ADC	Medium-speed, high accuracy, moderate power consumption	Industrial control systems, precision measurement
Integrating ADC	High noise rejection, low speed, excellent linearity	Digital multimeters, weigh scales
Pipeline ADC	High-speed operation with moderate resolution	Wireless communication base stations, video processing
Delta-Sigma ( ) ADC	High resolution, low noise, oversampling architecture	Audio processing, precision sensor interfaces
Flash ADC	Extremely high-speed conversion, limited resolution	Radar 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

Parameter	Description	Importance
Resolution	Number of digital output bits	Determines measurement precision
Sampling Rate	Maximum conversion speed (SPS)	Defines signal bandwidth capability
Signal-to-Noise Ratio (SNR)	Dynamic range measurement	Impacts signal fidelity
Integral Nonlinearity (INL)	Deviation from ideal transfer function	Critical for measurement accuracy
Power Consumption	Operating current/voltage requirements	Affects 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

Manufacturer	Representative Product	Key Specifications
TI (Texas Instruments)	ADS9283	24-bit ADC, 2MSPS, 2LSB INL
Analog Devices	AD7621	16-bit SAR ADC, 3MSPS, 85dB SNR
Maxim Integrated	MAX11905	16-bit pipeline ADC, 125MSPS
STMicroelectronics	LTC2389-18	18-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