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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
AD1877JRZ-RL

AD1877JRZ-RL

Analog Devices, Inc.

16-BIT SIGMA DELTA STEREO ADC

2248
CS5368-DQZ

CS5368-DQZ

Cirrus Logic

IC ADC/AUDIO 24BIT 192K 48LQFP

0
WM8955LSEFL

WM8955LSEFL

Cirrus Logic

STEREO DAC FOR AUDIO

1410
WM8781GEDS/RV

WM8781GEDS/RV

Cirrus Logic

IC STEREO DAC

0
LTC1292CCN8#PBF

LTC1292CCN8#PBF

Analog Devices, Inc.

IC DAS 12BIT 60K 8DIP

50
MAX1497EAI+

MAX1497EAI+

Maxim Integrated

IC ADC 3.5DIGIT 50 28SSOP

210
AD7874ARZ-REEL7

AD7874ARZ-REEL7

Analog Devices, Inc.

IC DAS 12BIT 116K 28SOIC

0
MAX134EQH-D

MAX134EQH-D

Analog Devices, Inc.

MAX134 3 3/4 DIGIT DMM CIRCUIT

0
ICL7116RCPL

ICL7116RCPL

3 1/2 DIGIT A/D CONVERTER

0
LTC1290DCSW#PBF

LTC1290DCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 50K 20SOIC

1977
AD9273BSVZRL-25

AD9273BSVZRL-25

Analog Devices, Inc.

IC AAF/ADC 12BIT 25M 100TQFP

0
AD7606BSTZ-6RL

AD7606BSTZ-6RL

Analog Devices, Inc.

IC DAS/ADC 16BIT 200K 64LQFP

1370
CS5371-BSZ

CS5371-BSZ

Cirrus Logic

DELTA SIGMA MODULATOR

541
CS4350-DZZ

CS4350-DZZ

Cirrus Logic

IC DAC/AUDIO 24BIT 192K 24TSSOP

203
NAU8502YG

NAU8502YG

Nuvoton Technology Corporation America

IC ADC/AUDIO 24BIT 32QFN

0
MAX1270ACAI+T

MAX1270ACAI+T

Maxim Integrated

IC DAS/ADC 12BIT 110K 28SSOP

0
WM8766GEDS/V

WM8766GEDS/V

Cirrus Logic

IC DAC/AUDIO 24BIT 192K 28SSOP

27
PCM2704CDBR

PCM2704CDBR

Texas Instruments

IC AUDIO 16BIT 48K 28SSOP

4114
LTC1296DIN#PBF

LTC1296DIN#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20DIP

54
MAX188ACAP

MAX188ACAP

Analog Devices, Inc.

8-CHANNEL, SERIAL 12-BIT ADCS

1632

Data Acquisition - ADCs/DACs - Special Purpose

1. Overview

Special Purpose Analog-to-Digital Converters (ADCs) and Digital-to-Analog Converters (DACs) are integrated circuits designed for specific data acquisition tasks requiring tailored performance characteristics. These ICs enable precise signal conversion in specialized applications where standard converters cannot meet unique requirements such as ultra-high speed, extreme accuracy, isolation, or environmental robustness. They are critical in advanced industrial control systems, medical instrumentation, aerospace electronics, and high-frequency communication systems.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
High-Speed ADCsSampling rates >1 GSPS, low latency, wide bandwidthRadar systems, 5G transceivers
High-Precision ADCs24-bit resolution, 2ppm linearity, low noiseMedical imaging, precision test equipment
Isolated ADCsGalvanic isolation up to 5kVRMS, CMTI >100kV/ sIndustrial motor drives, grid-tied inverters
Multi-Channel DACsSynchronized channels, crosstalk < -100dBAutomotive LiDAR beam steering
Radiation-Hardened ADCsLatch-up immunity, TID tolerance >100kradSatellite payloads, nuclear instrumentation

3. Structure and Components

Typical architecture includes:

  • Input conditioning stage (PGA, anti-aliasing filter)
  • Sampling-and-Hold circuit with <10ps jitter
  • Conversion core (SAR, Delta-Sigma, Pipeline architecture)
  • Digital interface (SPI, JESD204B, LVDS)
  • Calibration engine for offset/linearity correction
  • Thermal management structures (exposed pads, thermal vias)

4. Key Technical Specifications

ParameterDescriptionImportance
Effective Number of Bits (ENOB)Actual resolution considering noise/distortionSystem accuracy benchmark
Signal-to-Noise and Distortion (SINAD)Dynamic range measurementDetermines minimum detectable signal
Integral Nonlinearity (INL)Deviation from ideal transfer functionEssential for precision measurements
Power Supply Rejection Ratio (PSRR)Noise immunity from power railsSystem stability in varying conditions
Operating Temperature Range-55 C to +150 C for automotive/military gradesEnvironmental reliability

5. Application Fields

  • Industrial Automation: Programmable Logic Controllers (PLCs) with 16-channel analog inputs
  • Medical Imaging: MRI scanners requiring 24-bit ADCs with 10nV/ Hz noise density
  • Aerospace: Avionics data acquisition with radiation-hardened DACs
  • Test & Measurement: Oscilloscopes using 8GS/s ADCs for 2GHz bandwidth
  • Energy Systems: Grid monitoring devices with 0.01% accurate voltage measurement

6. Leading Manufacturers and Products

ManufacturerProduct SeriesKey Specifications
Analog DevicesAD7124-824-bit - ADC, 0.001% linearity, TUE <0.1%
TI SemiconductorADS54J6016-bit, 1GSPS ADC with 74dB SNR
Maxim IntegratedMAX1115616-channel, 18-bit SAR ADC, 0.1LSB INL
STMicroelectronicsLTC2380-2424-bit, 2Msps ADC with 2ppm INL
NXP SemiconductorsMC12DX10808-channel DAC with 12.5ps jitter for LiDAR

7. Selection Guidelines

Key selection criteria:

  1. Match sampling rate and bandwidth to signal requirements
  2. Verify temperature stability and long-term drift specifications
  3. Consider digital interface compatibility (e.g. JESD204C for high-speed links)
  4. Evaluate power consumption vs. performance trade-offs
  5. Example: For vibration analysis in jet engines, select ADC with 200dB dynamic range and -55 C to +125 C rating

Industry Trends

Emerging trends include:

  • 3D-stacked ICs integrating ADCs with AI acceleration cores
  • Time-interleaved ADCs breaking 10 GSPS barriers
  • Self-calibrating DACs with embedded temperature sensors
  • Photonics-enabled converters for THz-range sampling
  • Energy-harvesting optimized ADCs with sub- W operation modes

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