Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
ADS8519IBDB Texas Instruments	IC ADC 16BIT SAR 28SSOP	171
ADS6424IRGCR Texas Instruments	4-CH, 12-BIT ADC, PROP METHOD	1961
ADS774KU Texas Instruments	IC ADC 12BIT SAR 28SOIC	139
ADC108S102CIMTX/NOPB Texas Instruments	IC ADC 10BIT SAR 16TSSOP	0
ADS7844E Texas Instruments	IC ADC 12BIT SAR 20SSOP/QSOP	23
ADC08L060CIMT/NOPB Texas Instruments	IC ADC 8BIT PIPELINED 24TSSOP	2147
ADC12DL040CIVS/NOPB Texas Instruments	IC ADC 12BIT PIPELINED 64TQFP	0
ADS1110A0IDBVTG4 Texas Instruments	IC ADC 16BIT SIGMA-DELTA SOT23-6	0
ADS1110A2IDBVTG4 Texas Instruments	IC ADC 16BIT SIGMA-DELTA SOT23-6	0
ADC08D500CIYB/NOPB Texas Instruments	IC ADC 8BIT FOLD INTERP 128HLQFP	77
TLC1514IPW Texas Instruments	TLC1514 10-BIT, 400 KSPS ADC SER	12519
ADS8345N Texas Instruments	IC ADC 16BIT SAR 20SSOP	111
ADS4245MRGC25EP Texas Instruments	IC ADC 14BIT PIPELINED 64VQFN	0
ADS8383IPFBT Texas Instruments	SAR ADC, 18-BIT, PARALLEL ACCESS	1374
TLC1543IFNG3 Texas Instruments	IC ADC 10BIT SAR 20PLCC	0
ADS1115IRUGR Texas Instruments	IC ADC 16BIT SIGMA-DELTA 10X2QFN	40
ADC121S021CISDX/NOPB Texas Instruments	IC ADC 12BIT SAR 6WSON	0
ADC108S102CIMT/NOPB Texas Instruments	IC ADC 10BIT SAR 16TSSOP	486
TLV1544ID Texas Instruments	IC ADC 10BIT SAR 16SOIC	2
ADS58C28IRGCR Texas Instruments	IC ADC 11BIT PIPELINED 64VQFN	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