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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
AD2S80ABD

AD2S80ABD

Analog Devices, Inc.

IC R/D CONV 10/12/14/16B 40CDIP

2
AD2S1210WDSTZRL7

AD2S1210WDSTZRL7

Analog Devices, Inc.

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

0
MAX188BCPP+

MAX188BCPP+

Analog Devices, Inc.

ADC, SUCCESSIVE APPROXIMATION, 1

207
AD7874AQ

AD7874AQ

Analog Devices, Inc.

ADC, SUCCESSIVE APPROXIMATION, 1

927
5962-9152101MXA

5962-9152101MXA

Analog Devices, Inc.

IC DAS 12BIT 116K 28CDIP

1
MAX161ACPI

MAX161ACPI

Analog Devices, Inc.

8-CHANNEL DATA ACQUISITION SYS

606
AD1674KR-REEL

AD1674KR-REEL

Analog Devices, Inc.

12-BIT 100 KSPS A/D CONVERTER

2950
AD9272BSVZRL-80

AD9272BSVZRL-80

Analog Devices, Inc.

IC AAF/ADC 12BIT 80M 100TQFP

0
AD7401AYRWZ

AD7401AYRWZ

Analog Devices, Inc.

ISOLATED SIGMA-DELTA MODULATOR

71
AD9273BSVZ-50

AD9273BSVZ-50

Analog Devices, Inc.

CROSS POINT SWITCH, PQFP100

682
LTC1293CCSW#PBF

LTC1293CCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 16SOIC

0
AD9273BBCZ-40

AD9273BBCZ-40

Analog Devices, Inc.

IC AAF/ADC 12BIT 40M 144CSPBGA

17
LTC1290CIN#PBF

LTC1290CIN#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 50K 20DIP

18
AD7729ARZ

AD7729ARZ

Analog Devices, Inc.

DUAL SIGMA-DELTA ADC WITH AUXILI

1807
LTC1290BCSW#PBF

LTC1290BCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 50K 20SOIC

244
MAX1273CPA+

MAX1273CPA+

Analog Devices, Inc.

12-BIT ADC SELECTABLE INPUT

1524
AD7147PACPZ-500R7

AD7147PACPZ-500R7

Analog Devices, Inc.

IC CAP TO DGT 16BIT 250K 24LFCSP

513
AD7890ANZ-2

AD7890ANZ-2

Analog Devices, Inc.

12-BIT, 8 CHANNEL, SERIAL ADC

484
RDC1742448

RDC1742448

Analog Devices, Inc.

RESOLVER-TO-DIGITAL CONVERTERS

4
AD1866RZ-REEL

AD1866RZ-REEL

Analog Devices, Inc.

IC DAC/AUDIO 16BIT 16SOIC

516

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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