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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Omschrijving Prijs 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
RS-stocknr. 523-6074
FabrikantnummerAD9280ARSZ
FabrikantAnalog Devices
€ 4,84
Each
Aantal stuks
Pipelined 1 8 bit 32Msps Differential, Single Ended Voltage Surface Mount SSOP 28 ±1.5LSB Parallel - 3 V 10.2 x 5.3 x 1.75mm
RS-stocknr. 709-1921
FabrikantnummerADS1248IPW
€ 9,67
Each
Aantal stuks
Delta Sigma 8 24-bit 2ksps Differential, Single Ended Voltage Surface Mount TSSOP 28 15ppm FSR Serial (SPI) - 3.3 V 9.7 x 4.4 x 1.15mm
RS-stocknr. 402-897
FabrikantnummerMCP3551-E/SN
FabrikantMicrochip
€ 3,53
Each
Aantal stuks
Delta Sigma 1 22-bit 13.75sps Differential Voltage Surface Mount SOIC 8 6ppm Serial (SPI) Single 5 V 4.9 x 3.9 x 1.5mm
RS-stocknr. 819-5610
FabrikantnummerMCP3428T-E/SL
FabrikantMicrochip
€ 2,276
Each (On a Reel of 2600)
Aantal stuks
Delta Sigma 4 16-bit 328sps Differential, Single Ended Voltage Surface Mount SOIC 14 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 8.65 x 3.9 x 1.25mm
RS-stocknr. 102-5652
FabrikantnummerADS8320EB/250
€ 7,654
Each (On a Reel of 250)
Aantal stuks
SAR 1 16-bit 100ksps Differential Voltage Surface Mount MSOP 8 ±0.012%FSR Serial (SPI) - 2.5 V, 3.3 V, 5 V 3 x 3 x 0.97mm
RS-stocknr. 923-6687
FabrikantnummerADS1248IPW
€ 8,514
Each (In a Tube of 50)
Aantal stuks
Delta Sigma 8 24-bit 2ksps Differential, Single Ended Voltage Surface Mount TSSOP 28 15ppm FSR Serial (SPI) - 3.3 V 9.7 x 4.4 x 1.15mm
RS-stocknr. 538-6523
FabrikantnummerAD7928BRUZ
FabrikantAnalog Devices
€ 9,47
Each
Aantal stuks
SAR 8 12-bit 1000ksps Single Ended Voltage Surface Mount TSSOP 20 ±1LSB Serial (SPI/QSPI/Microwire) - 3 V, 5 V 6.5 x 4.4 x 1.05mm
RS-stocknr. 709-4822
FabrikantnummerAD677JNZ
FabrikantAnalog Devices
€ 56,39
Each
Aantal stuks
SAR 1 16 bit 100ksps Single Ended Voltage Through Hole PDIP 16 ±2LSB Serial - - 20.07 x 6.35 x 3.3mm
RS-stocknr. 822-6742
FabrikantnummerLTC2990IMS#PBF
FabrikantAnalog Devices
€ 5,385
Each (In a Pack of 2)
Aantal stuks
Delta Sigma 4 14-bit - Differential, Single Ended Voltage Surface Mount MSOP 10 ±2LSB Serial (I2C) Single 3 to 5.5 V 3 x 3 x 0.86mm
RS-stocknr. 786-9881
FabrikantnummerLTC2480CDD#PBF
FabrikantAnalog Devices
€ 3,66
Each
Aantal stuks
Delta Sigma 1 16-bit 7.5sps Differential Voltage Surface Mount DFN 10 10ppm Vref Serial (SPI/Microwire) Single 2.7 to 5.5 V 3 x 3 x 0.7mm
RS-stocknr. 669-6095
FabrikantnummerMCP3424-E/ST
FabrikantMicrochip
€ 3,54
Each
Aantal stuks
Delta Sigma 4 18-bit 0.004ksps Differential, Single Ended Voltage Surface Mount TSSOP 14 35ppm FSR Serial (I2C) - 5 V 5 x 4.4 x 0.9mm
RS-stocknr. 523-7207
FabrikantnummerAD9203ARUZ
FabrikantAnalog Devices
€ 8,34
Each
Aantal stuks
Pipelined 1 10 bit 40Msps Differential, Single Ended Voltage Surface Mount TSSOP 28 ±1.4LSB Parallel - 3 V 9.7 x 4.4 x 1.05mm
RS-stocknr. 889-6064
FabrikantnummerMCP3426A0-E/SN
FabrikantMicrochip
€ 1,676
Each (In a Tube of 100)
Aantal stuks
Delta Sigma 2 16-bit 0.015ksps Differential Voltage Surface Mount SOIC 8 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 4.9 x 3.9 x 1.25mm
RS-stocknr. 496-9818
FabrikantnummerAD7920BRMZ
FabrikantAnalog Devices
€ 6,33
Each
Aantal stuks
SAR 1 12-bit 250ksps Single Ended Voltage Surface Mount USOIC 8 ±1.5LSB Serial (SPI/QSPI/Microwire) - 2.5 V, 3.3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 709-6777
FabrikantnummerAD7822BNZ
FabrikantAnalog Devices
€ 9,73
Each
Aantal stuks
Semi Flash 1 8-bit 2000ksps Single Ended Voltage Through Hole PDIP 20 ±0.75LSB Parallel - 3 V, 5 V 26.16 x 6.35 x 3.3mm
RS-stocknr. 146-0130
FabrikantnummerMCP3004-I/P
FabrikantMicrochip
€ 1,465
Each (In a Tube of 30)
Aantal stuks
SAR 4 10-bit 200ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 14 ±1LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS-stocknr. 378-1768
FabrikantnummerADS7844E
€ 8,18
Each
Aantal stuks
SAR 8 12-bit 200ksps Differential, Single Ended Voltage Surface Mount SSOP 20 ±2LSB Serial (SPI) - 5 V 8.75 x 4 x 1.5mm
RS-stocknr. 872-2458
FabrikantnummerTC7106CPL
FabrikantMicrochip
€ 1,794
Each (In a Tube of 10)
Aantal stuks
Dual Slope 1 3.5 digit - Differential, Single Ended Voltage Through Hole PDIP 40 ±1Counts BCD Output - 9 V 53.21 x 14.73 x 4.95mm
RS-stocknr. 517-2087
FabrikantnummerTLC2543CN
€ 11,27
Each
Aantal stuks
SAR 11 12-bit 66ksps Single Ended Voltage Through Hole PDIP 20 ±1LSB Serial (SPI) - 5 V 24.33 x 6.35 x 4.57mm
RS-stocknr. 100-3821
FabrikantnummerADS7844E
€ 7,046
Each (In a Tube of 50)
Aantal stuks
SAR 8 12-bit 200ksps Differential, Single Ended Voltage Surface Mount SSOP 20 ±2LSB Serial (SPI) - 5 V 8.75 x 4 x 1.5mm