Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
LTC1604CG#TRPBF Analog Devices, Inc.	IC ADC 16BIT SAR 36SSOP	0
ADS7826IDRBR Texas Instruments	ADS7826 5.25V-2.7V, 10 BIT, 200K	24000
MAX1248AEEE+T Maxim Integrated	IC ADC 10BIT SAR 16QSOP	0
AD7820LRZ Analog Devices, Inc.	ADC, FLASH METHOD, 8 BIT, 1 FUNC	3907
AK9255ANK Asahi Kasei Microdevices / AKM Semiconductor	IC ADC 16BIT SAR 16QFN	246
ADC122S655CIMM/NOPB Texas Instruments	IC ADC 12BIT SAR 10VSSOP	99
AD7810YRM Analog Devices, Inc.	ADC, SUCCESSIVE APPROXIMATION, 1	19312
AD7820KRZ-REEL Analog Devices, Inc.	ADC, FLASH METHOD, 8 BIT, 1 FUNC	2341
ADC3243IRGZR Texas Instruments	IC ADC 14BIT PIPELINED 48VQFN	0
ADS8344N/1KG4 Texas Instruments	IC ADC 16BIT SAR 20SSOP	0
AD7467BRTZ-R2 Analog Devices, Inc.	ADC, SUCCESSIVE APPROXIMATION, 1	17512
ADS574JPG4 Burr-Brown (Texas Instruments)	SAR ADC, 12-BIT, PARALLEL ACCESS	0
MAX1247BCEE+ Maxim Integrated	IC ADC 12BIT SAR 16QSOP	4952000
MAX150BEWP+ Maxim Integrated	IC ADC 8BIT FLASH 20SOIC	756
MAX153EWP Analog Devices, Inc.	8-BIT ADC POWER-DOWN	1744
MAX11126ATI+T Maxim Integrated	IC ADC 8BIT SAR 28TQFN	7500
LTC1273BCSW#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 24SOIC	100
AD774BARZ Analog Devices, Inc.	IC ADC 12BIT SAR 28SOIC	54
MAX1400CAI+ Maxim Integrated	IC ADC 18BIT SIGMA-DELTA 28SSOP	461196
LTC2486CDE#TRPBF Analog Devices, Inc.	IC ADC 16BIT SIGMA-DELTA 14DFN	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