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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
MAX186AEWP

MAX186AEWP

Analog Devices, Inc.

8-CHANNEL, SERIAL 12-BIT ADCS

58
ADAU1979WBCPZ

ADAU1979WBCPZ

Analog Devices, Inc.

IC ADC/AUDIO 24BIT 192K 40LFCSP

1638
AD1852JRSZRL

AD1852JRSZRL

Analog Devices, Inc.

STEREO, 24 BIT, 192 KHZ, MULTIBI

53
LTC1293DCSW#TRPBF

LTC1293DCSW#TRPBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 16SOIC

0
AD2S82AHPZ-REEL

AD2S82AHPZ-REEL

Analog Devices, Inc.

VARIABLE RESOLUTION, MONOLITHIC

383
AD7724ASTZ-REEL

AD7724ASTZ-REEL

Analog Devices, Inc.

ADC, DELTA-SIGMA, 1-BIT, 2 CHANN

4630
ADUM7704-8BRIZ-RL

ADUM7704-8BRIZ-RL

Analog Devices, Inc.

+/- 250MV LOW POWER ISO ADC WITH

0
AD1866RZ

AD1866RZ

Analog Devices, Inc.

IC DAC/AUDIO 16BIT 16SOIC

407
LTC1296DCSW#TRPBF

LTC1296DCSW#TRPBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20SOIC

0
AD7606BSTZ

AD7606BSTZ

Analog Devices, Inc.

IC DAS/ADC 16BIT 200K 64LQFP AD7606BSTZ

3200
MAX161CCPI

MAX161CCPI

Analog Devices, Inc.

8-CHANNEL DATA ACQUISITION SYS

36
LTC1293BCSW#PBF

LTC1293BCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 16SOIC

0
AD7890BNZ-4

AD7890BNZ-4

Analog Devices, Inc.

12-BIT, 8 CHANNEL, SERIAL ADC

831
AD7400AYRWZ-RL

AD7400AYRWZ-RL

Analog Devices, Inc.

IC MODULATOR 16BIT 10M 16SOIC

252
ADUM7704-8BRIZ

ADUM7704-8BRIZ

Analog Devices, Inc.

+/- 250MV LOW POWER ISO ADC WITH

0
AD2S44-UM18B

AD2S44-UM18B

Analog Devices, Inc.

IC R/D CONVERTER 14BIT 32BBDIP-H

0
MAX198BCNI+

MAX198BCNI+

Analog Devices, Inc.

12-BIT DAS WITH 12-BIT INTERFACE

742
LTC1289BCN#PBF

LTC1289BCN#PBF

Analog Devices, Inc.

IC DAS 12BIT 25K 20DIP

0
AD7294BCPZRL

AD7294BCPZRL

Analog Devices, Inc.

12 BIT MONITOR AND CONTROL SYSTE

2720
LTC1093ACN#PBF

LTC1093ACN#PBF

Analog Devices, Inc.

IC DAS/ADC 10BIT 16DIP

0

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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