Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
5962-8776202VX Analog Devices, Inc.	DUAL MARKED (AD7575TQ/883B)	16
ADC0820CCWMX/NOPB Texas Instruments	IC ADC 8BIT FLASH 20SOIC	784
AD7476AYKSZ-REEL7 Analog Devices, Inc.	ADC, SUCCESSIVE APPROXIMATION, 1	18234
MAX154BCAG+ Analog Devices, Inc.	MAX154 CMOS HIGH-SPEED 8-BIT ADC	1231
LTC1272-3ACN#PBF Analog Devices, Inc.	IC ADC 12BIT SAR 24DIP	0
ADS7822PC Burr-Brown (Texas Instruments)	SAR ADC, 12-BIT, SERIAL ACCESS	20416
MAX1202BEAP+ Maxim Integrated	IC ADC 12BIT SAR 20SSOP	1691240
ADC084S021CIMM/NOPB Texas Instruments	IC ADC 8BIT SAR 10VSSOP	1224
MAX152CPP+ Analog Devices, Inc.	3V, 8-BIT ADC WITH 1A POWER DOWN	2141
TLC5733IPM Texas Instruments	3-CH, 8-BIT ADC, FLASH METHOD	9243
LTC2164IUK#TRPBF Analog Devices, Inc.	IC ADC 16BIT PIPELINED 48QFN	0
MAX147BCAP+T Maxim Integrated	IC ADC 12BIT SAR 20SSOP	0
AD7898ARZ-3 Analog Devices, Inc.	IC ADC 12BIT SAR 8SOIC	98
ADS7804U/1K Texas Instruments	ADS7804 12-BIT 10US SAMPLING CMO	813
LTC1276ACSW#TRPBF Analog Devices, Inc.	IC ADC 12BIT SAR 24SOIC	0
CS5529-AP Cirrus Logic	16-BIT, DELTA SIGMA ADC	177
LTC2233CUK#TRPBF Analog Devices, Inc.	IC ADC 10BIT PIPELINED 48QFN	0
AD7686CRMRL7 Analog Devices, Inc.	16-BIT, 500 KSPS PULSAR ADC	5993
AD7908BRUZ-REEL7 Analog Devices, Inc.	IC ADC 8BIT SAR 20TSSOP	235
AD7731BR-REEL7 Analog Devices, Inc.	ADC, DELTA-SIGMA, 24-BIT, 6 CH	13568

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