Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
ADS8318IDGSR Texas Instruments	ADS8318 16-BIT, UNIPOLAR DIFFERE	23510
ADS8325IDGKTG4 Texas Instruments	IC ADC 16BIT SAR 8VSSOP	0
TLV571IPW Texas Instruments	TLV571 8-BIT, 1.25 MSPS SINGLE C	7342
ADS7955SRGER Texas Instruments	ADS7955 10 BIT, 1 MSPS, 8 CH, SI	2853
ADS7834E/250G4 Texas Instruments	IC ADC 12BIT SAR 8VSSOP	0
ADS7862Y/250 Texas Instruments	ADS7862 DUAL 500KHZ, 12-BIT, 2+2	6379
ADC1175-50CIMTX/NOPB Texas Instruments	IC ADC 8BIT TWO-STEP 24TSSOP	0
ADS7800JU Texas Instruments	IC ADC 12BIT SAR 24SOIC	40
TLC1543CDB Texas Instruments	IC ADC 10BIT SAR 20SSOP	73
ADC128S052QCMT/NOPB Texas Instruments	IC ADC 12BIT SAR 16TSSOP	142
ADS8328IBPW Texas Instruments	IC ADC 16BIT SAR 16TSSOP	598
ADS112U04IPW Texas Instruments	IC ADC 16BIT SIGMA-DELTA 16TSSOP	60
ADC1173CIMTC/NOPB Texas Instruments	IC ADC 8BIT TWO-STEP 24TSSOP	175
TLC1543IFN Texas Instruments	TLC1543 10-BIT, 38 KSPS ADC SERI	21138
TLV2541ID Texas Instruments	TLV2541 12-BIT, 200 KSPS ADC, SE	7076
ADS1282IPWG4 Texas Instruments	IC ADC 31BIT SIGMA-DELTA 28TSSOP	0
ADS1253EG4 Texas Instruments	ADS1253 24-BIT, 20-KSPS, 4-CH, S	621
ADS8353QPWRQ1 Texas Instruments	ANALOG TO DIGITAL CONVERTER	0
ADS62P25IRGCT Texas Instruments	ADS62P25 DUAL-CHANNEL, 12-BIT, 1	1372
ADS7818P Texas Instruments	ADC, SUCCESSIVE APPROXIMATION, 1	5623

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