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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
SDC1740-411B

SDC1740-411B

Analog Devices, Inc.

14-BIT SYNCHRO--TO-DIGITAL CONVE

12
AD7720BRU-REEL7

AD7720BRU-REEL7

Analog Devices, Inc.

16-BIT DELTA-SIGMA ADC, SERIAL

1000
AD1953YSTZRL

AD1953YSTZRL

Analog Devices, Inc.

SIGMADSP 3-CHANNEL, 26 BIT SIGNA

12000
MAX128ACNG+

MAX128ACNG+

Analog Devices, Inc.

ANALOG CIRCUIT, 1 FUNC, PDIP24

335
LTC1287CCN8#PBF

LTC1287CCN8#PBF

Analog Devices, Inc.

IC DAS 12BIT 30K 8DIP

0
AD2S44SM13

AD2S44SM13

Analog Devices, Inc.

14-BIT, DUAL CH. R-D CONVERTER

8
LTC1296DCSW#PBF

LTC1296DCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20SOIC

407
LTC1297BCN8#PBF

LTC1297BCN8#PBF

Analog Devices, Inc.

IC DAS 12BIT 60K 8DIP

0
5962-89654023A

5962-89654023A

Analog Devices, Inc.

8 BIT A/D (AD9012)

160
AD7890SQ-10

AD7890SQ-10

Analog Devices, Inc.

IC DAS 12BIT 117K 24CDIP

5
AD7890BRZ-2

AD7890BRZ-2

Analog Devices, Inc.

ADC, PROPRIETARY METHOD, 12-BIT,

895
AD7403-8BRIZ-RL7

AD7403-8BRIZ-RL7

Analog Devices, Inc.

IC ISOLATED MODULE 16BIT 8SOIC

5
AD7403TRIZ-EP-RL7

AD7403TRIZ-EP-RL7

Analog Devices, Inc.

IC MODULATOR 16BIT 78.1K 16SOIC

0
AD7891YP-1

AD7891YP-1

Analog Devices, Inc.

12-BIT, 8 CHANNEL ADC

1629
AD7581JN

AD7581JN

Analog Devices, Inc.

8-BIT SAR ADC, 8 CHANNEL

971
AD7401YRWZ-REEL

AD7401YRWZ-REEL

Analog Devices, Inc.

IC ISOLATED MODULE 16BIT 16SOIC

0
AD7147WPACPZ-500R7

AD7147WPACPZ-500R7

Analog Devices, Inc.

CAPTOUCH PROGRAMMABLE CONTROLLER

6391
AD364RSD

AD364RSD

Analog Devices, Inc.

16-CHANNEL 12-BIT DATA AQ SYSTEM

0
ICL7106CQH-D

ICL7106CQH-D

Analog Devices, Inc.

ICL7106 A/D CONVERTER

0
AD7890AN-2

AD7890AN-2

Analog Devices, Inc.

12-BIT, 8 CHANNEL, SERIAL ADC

651

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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