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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
LTC1294DCSW#PBF

LTC1294DCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 20SOIC

527
MAX134EPL

MAX134EPL

Analog Devices, Inc.

MAX134 3 3/4 DIGIT DMM CIRCUIT

200
AD7720BRU-REEL

AD7720BRU-REEL

Analog Devices, Inc.

16-BIT DELTA-SIGMA ADC, SERIAL

5000
AD7294BSUZRL

AD7294BSUZRL

Analog Devices, Inc.

12 BIT MONITOR AND CONTROL SYSTE

31896
ADE7933ARIZ-RL

ADE7933ARIZ-RL

Analog Devices, Inc.

IC ADC/ENERGY MEAS 20SOIC

0
AD2S83IPZ-REEL

AD2S83IPZ-REEL

Analog Devices, Inc.

IC R/D CONV 10/12/14/16B 44PLCC

0
AD7891ASZ-2

AD7891ASZ-2

Analog Devices, Inc.

IC DAS 12BIT 500K 44MQFP

33
AD2S44UM14

AD2S44UM14

Analog Devices, Inc.

14-BIT, DUAL CH. R-D CONVERTER

6
AD7891YSZ-1

AD7891YSZ-1

Analog Devices, Inc.

IC DAS 12BIT 500K 44MQFP

6
ADE7923ARWZ

ADE7923ARWZ

Analog Devices, Inc.

IC SHUNT/METER 24BIT 8K 20SOIC

156
MAX161BEWI

MAX161BEWI

Analog Devices, Inc.

8-CHANNEL DATA ACQUISITION SYS

148
ADE7912ARIZ

ADE7912ARIZ

Analog Devices, Inc.

IC ADC/ENERGY MEAS 24BIT 20SOIC

65
5962-8965401XA

5962-8965401XA

Analog Devices, Inc.

8 BIT A/D (AD9012SQ/883B)

571
AD7874BNZ

AD7874BNZ

Analog Devices, Inc.

IC DAS 12BIT 116K 28DIP

8
AD7890BRZ-10REEL

AD7890BRZ-10REEL

Analog Devices, Inc.

ADC, PROPRIETARY METHOD, 12-BIT,

343
LTC1290DCN#PBF

LTC1290DCN#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 50K 20DIP

140
AD9273BSVZ-40

AD9273BSVZ-40

Analog Devices, Inc.

CROSS POINT SWITCH, PQFP100

2
LTC1293DCSW#PBF

LTC1293DCSW#PBF

Analog Devices, Inc.

IC DAS/ADC 12BIT 46.5K 16SOIC

744
ADUM7703BRWZ-RL7

ADUM7703BRWZ-RL7

Analog Devices, Inc.

+/- 250MV LOW POWER ISO ADC WITH

0
MAX138CPL

MAX138CPL

Analog Devices, Inc.

3 1/2 DIGIT ADC

13

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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