Data Acquisition - Analog to Digital Converters (ADC)

Part Number	Description / PDF	Quantity
ADS114S06IRHBT Texas Instruments	IC ADC 16BIT SIGMA-DELTA 32VQFN	384
ADS6145IRHBT Texas Instruments	IC ADC 14BIT PIPELINED 32VQFN	202
ADS5204IPFBRQ1 Texas Instruments	IC ADC 10BIT PIPELINED 48TQFP	960
TLC2578IDWG4 Texas Instruments	IC ADC 12BIT SAR 24SOIC	0
TLC0820ACFNR Texas Instruments	8-BIT ADC, FLASH METHOD	1000
ADS7816UC/2K5 Texas Instruments	ADS7816 12-BIT HIGH SPEED MICRO	13775
ADS7953SBRHBT Texas Instruments	IC ADC 12BIT SAR 32VQFN	396510000
ADS1100A1IDBVT Texas Instruments	IC ADC 16BIT SIGMA-DELTA SOT23-6	1074
ADS7841EIDBQRQ1 Texas Instruments	ADS7841-Q1 AUTOMOTIVE 12-BIT 4-C	32690
ADS8254IBRGCT Texas Instruments	ADC, SUCCESSIVE APPROXIMATION, 1	348
ADS62P45IRGCT Texas Instruments	ADS62P45 DUAL-CHANNEL, 14-BIT, 1	998
ADS1100A4IDBVR Texas Instruments	ADS1100 16-BIT, 128SPS, 1-CH DEL	5736
ADS8505IBDBG4 Texas Instruments	IC ADC 16BIT SAR 28SSOP	0
ADS7827IDRBTG4 Texas Instruments	IC ADC 8BIT SAR 8SON	0
TLC2558IPW Texas Instruments	IC ADC 12BIT SAR 20TSSOP	0
ADC10064CIWM Texas Instruments	FLASH METHOD, 10-BIT ADC, 4-CHAN	2222
ADS1254WDBQEP Texas Instruments	ADC, DELTA-SIGMA, 24 BIT, 1 FUNC	0
ADS7957QDBTRQ1 Texas Instruments	IC ADC 10BIT SAR 38TSSOP	1328
ADC082S101CIMMX/NOPB Texas Instruments	ADC082S101 - IC ADC 8BIT SAR 8VS	3500
ADS7825P Texas Instruments	SAR ADC, 16-BIT, SERIAL/PARALLEL	275

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