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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
LTC1290BISW#PBF

LTC1290BISW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 50K 20SOIC

38
ADUM7702BRWZ

ADUM7702BRWZ

Analog Devices, Inc.

+/- 50MV LOW POWER ISO ADC

0
AD7890AR-4

AD7890AR-4

Analog Devices, Inc.

12-BIT, 8 CHANNEL, SERIAL ADC

0
MAX128AEAI+

MAX128AEAI+

Analog Devices, Inc.

ANALOG CIRCUIT, 1 FUNC, PDSO28

368
AD1940YSTZ

AD1940YSTZ

Analog Devices, Inc.

IC AUDIO 28BIT 192K 48LQFP

102
AD5758BCPZ-REEL

AD5758BCPZ-REEL

Analog Devices, Inc.

IC DAC 16BIT 32LFCSP

0
ADE7923ARWZ-RL

ADE7923ARWZ-RL

Analog Devices, Inc.

IC SHUNT/METER 24BIT 8K 20SOIC

0
RDC1740448B

RDC1740448B

Analog Devices, Inc.

RESOLVER-TO-DIGITAL CONVERTERS

1
AD974BR

AD974BR

Analog Devices, Inc.

AD974 - 4-CHANNEL, 16-BIT, DATA

33
MAX128BCAI

MAX128BCAI

Analog Devices, Inc.

12-BIT DAS WITH SERIAL INTERFACE

758
AD2S1200WSTZ

AD2S1200WSTZ

Analog Devices, Inc.

IC R/D CONVERTER 12BIT 44LQFP

56
ADE7913ARIZ-RL

ADE7913ARIZ-RL

Analog Devices, Inc.

IC ADC/ENERGY MEAS 24BIT 20SOIC

1766
SDC1740-411

SDC1740-411

Analog Devices, Inc.

SYNCHRO OR RESOLVER TO DIGITAL C

10
ADA2200ARUZ

ADA2200ARUZ

Analog Devices, Inc.

IC DEMODULATOR 16TSSOP

183
LTC1296CIN#PBF

LTC1296CIN#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20DIP

35
LTC1296CCSW#TRPBF

LTC1296CCSW#TRPBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20SOIC

0
AD9940BSTZRL

AD9940BSTZRL

Analog Devices, Inc.

IC CDS CORRELATD DBL 56M 48LQFP

0
AD2S1210WDSTZ

AD2S1210WDSTZ

Analog Devices, Inc.

IC R/D CONV 10/12/14/16B 48LQFP

6
LTC1296DISW#PBF

LTC1296DISW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20SOIC

0
AD5592RBCPZ-1-RL7

AD5592RBCPZ-1-RL7

Analog Devices, Inc.

IC ADC/DAC 12BIT 400K 16LFCSP

329

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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