Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
TLV1571CDW Texas Instruments	TLV1571 1-CH. 10-BIT 1.25 MSPS A	13123
ADS5562IRGZT Texas Instruments	IC ADC 16BIT PIPELINED 48VQFN	140
ADC12DJ2700AAV Texas Instruments	IC ADC 12BIT FOLD INTER 144FCBGA	6
ADS1100A0IDBVRG4 Texas Instruments	IC ADC 16BIT SIGMA-DELTA SOT23-6	0
ADC121S101CIMF/NOPB Texas Instruments	IC ADC 12BIT SAR SOT23-6	8029
ADS1213E/1KG4 Texas Instruments	IC ADC 22BIT SIGMA-DELTA 28SSOP	0
ADS7829IDRBR Texas Instruments	ADS7829 12-BIT HIGH SPEED 2.7V M	277696
TLC1543CN Texas Instruments	IC ADC 10BIT SAR 20DIP	140
ADS7818E/250 Texas Instruments	IC ADC 12BIT SAR 8VSSOP	817
TLC3544IPW Texas Instruments	IC ADC 14BIT SAR 20TSSOP	35
ADS7828E/250 Texas Instruments	IC ADC 12BIT SAR 16TSSOP	3236
ADS8328IRSAT Texas Instruments	ADC, SUCCESSIVE APPROXIMATION, 1	4222
ADS1113IDGSR Texas Instruments	IC ADC 16BIT SIGMA-DELTA 10VSSOP	840
TLV1508IPWR Texas Instruments	TLV1508 10-BIT 200 KSPS ADC SERI	54
TLC0834CD Texas Instruments	TLC0834 8-BIT, 4-CH, 20 KSPS ADC	3178
ADS1282HPW Texas Instruments	IC ADC 31BIT SIGMA-DELTA 28TSSOP	36
ADS7817E/2K5G4 Texas Instruments	ADS7817 12-BIT DIFFERENTIAL INPU	4310
ADC12L066CIVY/NOPB Texas Instruments	ADC12L066 12-BIT, 66-MSPS, 450-M	999
TLC1543INE4 Texas Instruments	TLC1543 10-BIT, 38 KSPS ADC SERI	0
TLC2551IDG4 Texas Instruments	IC ADC 12BIT SAR 8SOIC	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