Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
ADS54J66IRMP Texas Instruments	IC ADC 14BIT PIPELINED 72VQFN	157
ADS7865IPBSG4 Texas Instruments	IC ADC 12BIT SAR 32TQFP	0
LTC2357HLX-18#PBF Analog Devices, Inc.	IC ADC 18BIT SAR 48LQFP	114
MX7828LCWI Analog Devices, Inc.	MX7828 8-BIT ADC	271
DDC112U/1K Texas Instruments	IC ADC 20BIT SIGMA-DELTA 28SOIC	549710000
TLC1551IFN Texas Instruments	TLC1551 10-BIT, 164 KSPS ADC PAR	20807
TLC0834IPW Texas Instruments	SAR ADC, 8-BIT, 4 CH, SERIAL	450
LTC1199LCS8#PBF Analog Devices, Inc.	IC ADC 10BIT SAR 8SOIC	200
MX674AKCWI+T Maxim Integrated	IC ADC 12BIT SAR 28SO	1000
ADS5294IPFPR Texas Instruments	IC ADC 14BIT PIPELINED 80HTQFP	0
AD7718BRZ-REEL Analog Devices, Inc.	IC ADC 24BIT SIGMA-DELTA 28SOIC	0
LTC2123CUK#TRPBF Analog Devices, Inc.	IC ADC 14BIT PIPELINED 48QFN	0
AD7892BN-3 Analog Devices, Inc.	12-BIT SAR PARALLEL ADC	1876
ADC12J4000NKE Texas Instruments	IC ADC 68VQFN	0
LTC2123IUK#PBF Analog Devices, Inc.	IC ADC 14BIT PIPELINED 48QFN	13
AD7713ARZ-REEL Analog Devices, Inc.	IC ADC 24BIT SIGMA-DELTA 24SOIC	0
LTC2356CMSE-12#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 10MSOP	91
AD9060KE Analog Devices, Inc.	10-BIT FLASH ADC, PARALLEL	238
ADS7812P-TI Texas Instruments	ADC, SUCCESSIVE APPROXIMATION, 1	1810
AD774BBRZ Analog Devices, Inc.	IC ADC 12BIT SAR 28SOIC	112

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