Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
MAX1147BEUP Analog Devices, Inc.	MULTICHANNEL SERIAL, 14-BIT ADC	19
AD7192BRUZ-REEL Analog Devices, Inc.	IC ADC 24BIT SIGMA-DELTA 24TSSOP	1603
TLC2543IDBRQ1 Texas Instruments	TLC2543-Q1 AUTOMOTIVE 12-BIT ANA	19688
AD7828KPZ Analog Devices, Inc.	IC ADC 8BIT FLASH 28PLCC	14
LTC1860LIMS8#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 8MSOP	180
LTC2497CUHF#TRPBF Analog Devices, Inc.	IC ADC 16BIT SIGMA-DELTA 38QFN	1928
AD7177-2BRUZ Analog Devices, Inc.	IC ADC 32BIT SIGMA-DELTA 24TSSOP	374
MAX1362EUB+T Maxim Integrated	IC ADC 10BIT SAR 10UMAX	0
AD7472BRZ Analog Devices, Inc.	12-BIT SAR PARALLEL ADC	15245
ADS820U/1K Burr-Brown (Texas Instruments)	ADC, PROPRIETARY METHOD, 10-BIT	19183
AD9625BBPZRL-2.5 Analog Devices, Inc.	IC ADC 12BIT PIPELINED 196BGA	0
ADC32RF42IRMPT Texas Instruments	IC ADC 14BIT PIPELINED 72VQFN	0
LTC2284CUP#PBF Analog Devices, Inc.	IC ADC 14BIT PIPELINED 64QFN	26
LTC1608IG#PBF Analog Devices, Inc.	IC ADC 16BIT SAR 36SSOP	125
ADS1602IPFBR Texas Instruments	IC ADC 16BIT SIGMA-DELTA 48TQFP	0
ICL7117CMH Analog Devices, Inc.	DIGITAL ADCS WITH DISPLAY HOLD	322
MX7575JN Analog Devices, Inc.	MAX575 CMOS, 8-BIT ADC	374
ADS8321E/2K5 Texas Instruments	ADS8321 16-BIT, HIGH-SPEED, MICR	41719
ADC12D800RFIUT Texas Instruments	IC ADC 12BIT FOLD INTERP 292BGA	0
MAX138CQH-D Analog Devices, Inc.	3 1/2 DIGIT ADC	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