Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
AD7323BRUZ-REEL Analog Devices, Inc.	IC ADC 12BIT SAR 16TSSOP	0
LTC2241CUP-12#PBF Analog Devices, Inc.	IC ADC 12BIT PIPELINED 64QFN	256
LTC1288CN8#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 8DIP	46
AD7863ARS-3 Analog Devices, Inc.	14-BIT SAR ADC, 4 CHANNEL	1814
MAX1087ETA Analog Devices, Inc.	MAX1087 150KSPS, 10-BIT, 2-CHANN	871
AD7265BSUZ-REEL7 Analog Devices, Inc.	IC ADC 12BIT SAR 32TQFP	500
MAX1121EGK Analog Devices, Inc.	8-BIT, 250MSPS ADC	1930
MAX122AENG Analog Devices, Inc.	12-BIT ADC WITH TRACK/HOLD & REF	20
AD7997BRUZ-1 Analog Devices, Inc.	IC ADC 10BIT SAR 20TSSOP	0
LTC2310IMSE-14#TRPBF Analog Devices, Inc.	IC ADC 14BIT SAR 16MSOP	0
LTC2376IMS-16#TRPBF Analog Devices, Inc.	IC ADC 16BIT SAR 16MSOP	0
LTC1746CFW#PBF Analog Devices, Inc.	IC ADC 14BIT PIPELINED 48TSSOP	67
LTC2165CUK#TRPBF Analog Devices, Inc.	IC ADC 16BIT PIPELINED 48QFN	0
LTC2453IDDB#TRPBF Analog Devices, Inc.	IC ADC 16BIT SIGMA-DELTA 8DFN	0
LTC1277CSW#TRPBF Analog Devices, Inc.	IC ADC 12BIT SAR 24SOIC	0
AD7683BRMZ Analog Devices, Inc.	IC ADC 16BIT SAR 8MSOP	584
AD9212BCPZ-40 Analog Devices, Inc.	10-BIT FLASH ADC, 8-CHANNEL	1036
AD9200JST Analog Devices, Inc.	10-BIT ADC PARALLEL, WORD ACCESS	3313
LTC2309HF#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 20TSSOP	1438
AD7476AAKSZ-500RL7 Analog Devices, Inc.	IC ADC 12BIT SAR SC70-6	292

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