Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
ADC088S052CIMT/NOPB Texas Instruments	IC ADC 8BIT SAR 16TSSOP	693
ADS4145IRGZ25 Texas Instruments	ADC, PROPRIETARY METHOD, 14-BIT	23
TLC2574IN Texas Instruments	SAR ADC, 12-BIT, SERIAL ACCESS	704
ADS8695IPWR Texas Instruments	IC ADC 18BIT SAR 16TSSOP	0
ADC3224IRGZR Texas Instruments	IC ADC 12BIT PIPELINED 48VQFN	0
ADS8517IBPW Texas Instruments	ADS8517 LOW-POWER 16-BIT 200KSPS	4747
ADS7828EB/250G4 Texas Instruments	IC ADC 12BIT SAR 16TSSOP	0
DDC114IRTCT Texas Instruments	IC ADC 20BIT SIGMA-DELTA 48VQFN	1829
ADS1278IPAPR Texas Instruments	IC ADC 24BIT SIGMA-DELTA 64HTQFP	1685
ADS8509IBDBR Texas Instruments	SAR ADC, 16-BIT, SERIAL ACCESS	8097
ADS7884SDBVR Texas Instruments	ADS7884 2.7V-5.5V, 10 BIT, 3MSPS	5193
ADC128S022CIMTX/NOPB Texas Instruments	IC ADC 12BIT SAR 16TSSOP	4512
TLV0832ID Texas Instruments	TLV0832 8-BIT 44.7 KSPS ADC SERI	23156
ADS127L01IPBS Texas Instruments	IC ADC 24BIT SIGMA-DELTA 32TQFP	106
ADS7824UB/1K Texas Instruments	SAR ADC, 12-BIT, SERIAL/PARALLEL	11690
ADS1235IRHBR Texas Instruments	IC ADC 24BIT SIGMA-DELTA 32VQFN	0
ADC12L080CIVY/NOPB Texas Instruments	IC ADC 12BIT PIPELINED	0
ADS7229IPWRG4 Texas Instruments	IC ADC 12BIT SAR 16TSSOP	0
ADS7042IRUGR Texas Instruments	IC ADC 12BIT SAR 8X2QFN	4576
ADS8681IRUMR Texas Instruments	IC ADC 16BIT SAR 16WQFN	2965

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