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Data Acquisition - ADCs/DACs - Special Purpose

Image Part Number Description / PDF Quantity Rfq
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
HI7133CM44

HI7133CM44

LED DISPLAY-TYPE A/D CONVERTERS

3724
AD7294BSUZRL

AD7294BSUZRL

Analog Devices, Inc.

12 BIT MONITOR AND CONTROL SYSTE

31896
CS5503-BS

CS5503-BS

Cirrus Logic

CS5503 - 20-BIT A/D CONVERTER

2195
CS4392-KZZR

CS4392-KZZR

Cirrus Logic

STEREO DAC FOR AUDIO

0
HCPL-7860

HCPL-7860

Broadcom

IC ISOLATED MODULE 12BIT 8DIP

521
MAX1498ECJ+T

MAX1498ECJ+T

Maxim Integrated

IC ADC 4.5DIGIT 50 32TQFP

0
MAX186CCAP+T

MAX186CCAP+T

Maxim Integrated

IC DAS/ADC 12BIT 133K 20SSOP

0
AMC7812SRGCR

AMC7812SRGCR

Texas Instruments

IC ANLG MON/CTL 12B 500K 64VQFN

0
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
CS5501-BSZ

CS5501-BSZ

Cirrus Logic

CS5501 - 16-BIT A/D CONVERTER

4322
BU9480F-E2

BU9480F-E2

ROHM Semiconductor

IC DAC/AUDIO 16BIT 8SOP

0
AD2S44UM14

AD2S44UM14

Analog Devices, Inc.

14-BIT, DUAL CH. R-D CONVERTER

6
LDC1314QRGHRQ1

LDC1314QRGHRQ1

Texas Instruments

IC IND TO DGTL 12B 13.3K 16WQFN

0
AK4495SEQ

AK4495SEQ

Asahi Kasei Microdevices / AKM Semiconductor

IC DAC/AUDIO 32BIT 768K 44LQFP

0
MAX1496EAI+

MAX1496EAI+

Maxim Integrated

IC ADC 3.5DIGIT 50 28SSOP

313
AD7891YSZ-1

AD7891YSZ-1

Analog Devices, Inc.

IC DAS 12BIT 500K 44MQFP

6

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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