Analogue to Digital Converters

Analogue to digital converters (ADCs) are devices that convert analogue input signals into a digital output signal, for example a sound captured from a microphone or light entering a digital camera. These analogue inputs are then converted into a digital signal output as either sound from a speaker or a picture in a camera.

ADCs sample the input signals at specific points in time which reduces the allowable bandwidth of the input signal for increased efficiency.

What does an analogue to digital converter do?

Audio analogue to digital converters captures and converts analogue sounds into digital signals using a mathematical function called quantisation. This conversion occurs periodically instead of continuing to minimise noise generation.

Video analogue to digital to converters are a high-frequency low- to medium-resolution type that is used to convert analogue video data into digital video signals such as displays on digital cameras.

General Purpose ADCs are considered the base type of ADC un of the mill ADCs are used to convert analogue signals to digital signals in equipment such as temperature sensors.

Types of analogue to digital converters

The most widely used types of ADCs are:

  • Flash - Flash ADCs are considered the fastest way to convert an analogue signal to a digital signal and are suitable for applications requiring very large bandwidths such as satellite communication, data acquisition, radar processing and sampling oscilloscopes.
  • Successive approximation - A successive approximation ADC converts continuous analogue waveform into digital using a binary search through all quantization levels before finally combining a digital output for each conversion.
  • Sigma-delta - Sigma delta ADCs converts the signal by large factors and filters the desired signal. They offer high resolution, low power consumption and are used in applications such as process control, temperature measurement and weight measurement scale devices.

Applications

Audio ADCs are widely used in applications such as:

  • Professional audio mixing consoles
  • Home theatre systems
  • Musical instruments

Video ADCs are used in:

  • Medical Imaging
  • Digital Instrumentation
  • Digital cameras

General Purpose ADCs are used primarily in applications such as:

  • Battery Operated Systems
  • Sensor Interfaces
  • Frequency measurement

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Description Prix Architecture Number of ADCs Resolution Sampling Rate Input Signal Type Input Type Mounting Type Package Type Pin Count Integral Nonlinearity Error Digital Interface Type Power Supply Type Typical Single Supply Voltage Dimensions
N° de stock RS 189-7374
Référence fabricantMAX11040KGUU+
13,986 €
Each (In a Tube of 50)
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Delta Sigma 4 24-bit 64ksps Differential, Single Ended Voltage Surface Mount TSSOP 38 0.006%FSR Serial (SPI/QSPI/Microwire) Single 3 to 3.6 V 9.8 x 4.5 x 0.95mm
N° de stock RS 190-5033
Référence fabricantMAX11644EUA+
2,076 €
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SAR 2 12 bit 94.4ksps Differential, Single Ended Differential, Single Ended Surface Mount μMAX 8 ±1LSB - Single 4.5 to 5.5 V 3.1 x 3.1 x 0.95mm
N° de stock RS 193-5504
Référence fabricantMCP33141D-10-E/MS
MarqueMicrochip
1,69 €
Each (In a Tube of 100)
Unité
- 1 14 bit - - - - - - - Serial - - -
N° de stock RS 145-7099
Référence fabricantADC08200CIMT/NOPB
14,356 €
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Unité
Pipelined 1 8-bit 200000ksps Single Ended Voltage Surface Mount TSSOP 24 -1.2/1.9LSB Parallel - 3 V 7.8 x 4.4 x 0.9mm
N° de stock RS 497-0111
Référence fabricantAD7923BRUZ
5,31 €
Each
Unité
SAR 4 12-bit 200ksps Single Ended Voltage Surface Mount TSSOP 16 ±1LSB Serial (SPI/QSPI/Microwire) - 3 V, 5 V 5 x 4.4 x 1.05mm
N° de stock RS 191-3922
Référence fabricantMAX1032BEUG+
7,348 €
Each (In a Tube of 62)
Unité
SAR 8 14 bit 115ksps Differential, Single Ended Differential, Single Ended Surface Mount TSSOP 24 ±1LSB - Single 4.75 to 5.25 V 7.9 x 4.5 x 0.95mm
N° de stock RS 662-0192
Référence fabricantTLC0838CDW
4,76 €
Each (In a Pack of 5)
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SAR 8 8-bit 20ksps Differential, Single Ended Voltage Surface Mount SOIC 20 ±0.4LSB Serial (SPI) - 5 V 12.8 x 7.52 x 2.35mm
Nouveau
N° de stock RS 215-7992
Référence fabricantMCP3461RT-E/NC
MarqueMicrochip
1,321 €
Each (On a Reel of 3000)
Unité
- - 16 bit 153.6ksps Single Ended - Surface Mount UQFN 20 - - - - -
N° de stock RS 192-1508
Référence fabricantMAX1136EUA+
7,105 €
Each (In a Pack of 2)
Unité
SAR 4 10-bit 94.4ksps Differential Voltage Surface Mount μSOP 8 ±1LSB Serial (I2C) Single 4.5 to 5.5 V 3.05 x 3.05 x 0.95mm
N° de stock RS 162-4262
Référence fabricantPCM1804DB
4,749 €
Each (In a Tube of 47)
Unité
Delta Sigma 2 24 bit 192ksps Differential Voltage Surface Mount SSOP 28 - Serial - 5 V 10.2 x 5.3 x 1.95mm
N° de stock RS 538-7504
Référence fabricantAD7708BRZ
8,28 €
Each
Unité
Delta Sigma 10 16-bit 1.365ksps Differential, Pseudo Differential Voltage Surface Mount SOIC W 28 ±15ppm FSR Serial (SPI) - 3 V, 5 V 18.1 x 7.6 x 2.35mm
N° de stock RS 190-5054
Référence fabricantMAX132CWG+
14,15 €
Each
Unité
- 1 18 bit 0.1ksps - Analogue Surface Mount SO 24 ±0.006%FSR 4-Wire Serial Single 4.5 to 5.5 V 15.6 x 7.6 x 2.35mm
N° de stock RS 709-6128
Référence fabricantAD670JNZ
30,27 €
Each
Unité
SAR 1 8-bit - Differential Voltage Through Hole PDIP 20 ±0.5LSB Parallel - 5 V 26.16 x 6.35 x 3.3mm
N° de stock RS 923-3710
Référence fabricantADS7828EB/250
6,067 €
Each (On a Reel of 250)
Unité
SAR 8 12-bit 50ksps Differential, Pseudo Differential Voltage Surface Mount TSSOP 16 ±1LSB Serial (I2C) - 3.3 V, 5 V 5 x 4.4 x 1.15mm
N° de stock RS 823-0076
Référence fabricantLTC2990CMS#PBF
4,685 €
Each (In a Pack of 2)
Unité
- 4 14-bit - Differential, Single Ended Temperature, Voltage Surface Mount MSOP 10 2LSB Serial (I2C) Single 2.9 to 5.5 V 3 x 3 x 0.86mm
N° de stock RS 759-1070
Référence fabricantAD7701ARSZ
30,34 €
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Delta Sigma 1 16-bit 4ksps Single Ended Voltage Surface Mount SSOP 28 ±0.003%FSR Serial Dual - 10.5 x 5.6 x 1.85mm
N° de stock RS 709-5008
Référence fabricantAD7894ARZ-3
15,61 €
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SAR 1 14-bit 200ksps Single Ended Voltage Surface Mount SOIC 8 ±2LSB Serial - 5 V 5 x 4 x 1.5mm
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Référence fabricantLTC2481IDD#PBF
4,385 €
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Delta Sigma 1 16-bit 7.5sps Differential Voltage Surface Mount DFN 10 10ppm Vref Serial (I2C) Single 2.7 to 5.5 V 3 x 3 x 0.7mm
N° de stock RS 639-4244
Référence fabricantADC124S101CIMM/NOPB
5,048 €
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SAR 4 12-bit 1000ksps Single Ended Voltage Surface Mount MSOP 10 -1.2/1.6LSB Serial (SPI/QSPI/Microwire) - 3.3 V, 5 V 3 x 3 x 0.86mm
N° de stock RS 538-4656
Référence fabricantAD7822BRUZ
8,60 €
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Semi Flash 1 8-bit 2000ksps Single Ended Voltage Surface Mount TSSOP 20 ±0.75LSB Parallel - 3 V, 5 V 6.5 x 4.4 x 1.05mm