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. 889-5143
FabrikantnummerMCP3008-I/P
FabrikantMicrochip
€ 1,543
Each (In a Tube of 30)
Aantal stuks
SAR 8 10-bit 200ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±1LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS-stocknr. 669-6064
FabrikantnummerMCP3008-I/P
FabrikantMicrochip
€ 2,04
Each (In a Pack of 2)
Aantal stuks
SAR 8 10-bit 200ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±1LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS-stocknr. 757-8137
FabrikantnummerLTC2309CF#PBF
FabrikantAnalog Devices
€ 6,13
Each
Aantal stuks
SAR 8 12-bit 14ksps Differential, Single Ended Voltage Surface Mount TSSOP 20 ±1LSB Serial (I2C) Single 5 V 6.6 x 4.5 x 0.95mm
RS-stocknr. 709-6162
FabrikantnummerAD7192BRUZ
FabrikantAnalog Devices
€ 9,51
Each
Aantal stuks
Delta Sigma 4 24-bit 4.8ksps Differential, Pseudo Differential Voltage Surface Mount TSSOP 24 ±30ppm FSR Serial (SPI) - 3.3 V, 5 V 7.8 x 4.4 x 1.05mm
RS-stocknr. 144-9128
FabrikantnummerMCP3208-BI/P
FabrikantMicrochip
€ 3,064
Each (In a Tube of 30)
Aantal stuks
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±1LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS-stocknr. 379-2487
FabrikantnummerMCP3208-BI/P
FabrikantMicrochip
€ 4,042
Each (In a Pack of 5)
Aantal stuks
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±1LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS-stocknr. 819-5617
FabrikantnummerMCP3427T-E/UN
FabrikantMicrochip
€ 1,809
Each (On a Reel of 2500)
Aantal stuks
Delta Sigma 2 16-bit 328sps Differential, Single Ended Voltage Surface Mount MSOP 10 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 3 x 3 x 0.95mm
RS-stocknr. 159-7652
FabrikantnummerAD7991YRJZ-1500RL7
FabrikantAnalog Devices
€ 4,329
Each (On a Reel of 500)
Aantal stuks
SAR 4 12-bit 140ksps Single Ended Voltage Surface Mount SOT-23 8 ±1LSB Serial (I2C) Single 2.7 to 5.5 V 3 x 1.7 x 1.3mm
RS-stocknr. 709-4544
FabrikantnummerADS1115IDGST
€ 5,27
Each
Aantal stuks
Delta Sigma 4 16-bit 0.86ksps Differential, Single Ended Voltage Surface Mount VSSOP 10 1LSB Serial (I2C) - 3.3 V 3 x 3 x 1.02mm
RS-stocknr. 887-7306
FabrikantnummerMCP3208-CI/SL
FabrikantMicrochip
€ 2,453
Each (In a Tube of 50)
Aantal stuks
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Surface Mount SOIC 16 ±2LSB Serial (SPI) - 5 V 9.9 x 3.9 x 1.25mm
RS-stocknr. 758-9967
FabrikantnummerAD7991YRJZ-0500RL7
FabrikantAnalog Devices
€ 6,98
Each
Aantal stuks
SAR 4 12-bit 140ksps Single Ended Voltage Surface Mount SOT-23 8 ±1LSB Serial (I2C) Single 2.7 to 5.5 V 3 x 1.7 x 1.3mm
RS-stocknr. 923-6911
FabrikantnummerADS1115IDGST
€ 3,306
Each (On a Reel of 250)
Aantal stuks
Delta Sigma 4 16-bit 0.86ksps Differential, Single Ended Voltage Surface Mount VSSOP 10 1LSB Serial (I2C) - 3.3 V 3 x 3 x 1.02mm
RS-stocknr. 703-7949
FabrikantnummerMCP3427-E/UN
FabrikantMicrochip
€ 2,52
Each
Aantal stuks
Delta Sigma 2 16-bit 0.015ksps Differential Voltage Surface Mount MSOP 10 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 3 x 3 x 0.95mm
RS-stocknr. 759-1238
FabrikantnummerAD7991YRJZ-1500RL7
FabrikantAnalog Devices
€ 6,98
1 Tape of 1
Tape(s)
SAR 4 12-bit 140ksps Single Ended Voltage Surface Mount SOT-23 8 ±1LSB Serial (I2C) Single 2.7 to 5.5 V 3 x 1.7 x 1.3mm
RS-stocknr. 911-5583
FabrikantnummerMCP3427-E/UN
FabrikantMicrochip
€ 1,809
Each (In a Tube of 100)
Aantal stuks
Delta Sigma 2 16-bit 0.015ksps Differential Voltage Surface Mount MSOP 10 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 3 x 3 x 0.95mm
RS-stocknr. 379-2522
FabrikantnummerMCP3208-CI/SL
FabrikantMicrochip
€ 3,07
Each (In a Pack of 5)
Aantal stuks
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Surface Mount SOIC 16 ±2LSB Serial (SPI) - 5 V 9.9 x 3.9 x 1.25mm
RS-stocknr. 144-9085
FabrikantnummerMCP3202-CI/P
FabrikantMicrochip
€ 1,787
Each (In a Tube of 60)
Aantal stuks
SAR 2 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 8 ±2LSB Serial (SPI) - 3.3 V, 5 V 9.27 x 6.35 x 3.3mm
RS-stocknr. 889-5180
FabrikantnummerMCP3424-E/SL
FabrikantMicrochip
€ 2,753
Each (In a Tube of 57)
Aantal stuks
Delta Sigma 4 18-bit 0.004ksps Differential, Single Ended Voltage Surface Mount SOIC 14 35ppm FSR Serial (I2C) - 5 V 8.65 x 3.9 x 1.25mm
RS-stocknr. 738-6651
FabrikantnummerMCP3008-I/SL
FabrikantMicrochip
€ 1,945
Each (In a Pack of 2)
Aantal stuks
SAR 8 10-bit 200ksps Pseudo Differential, Single Ended Voltage Surface Mount SOIC 16 ±1LSB Serial (SPI) - 5 V 9.9 x 3.9 x 1.25mm
RS-stocknr. 403-115
FabrikantnummerMCP3202-CI/P
FabrikantMicrochip
€ 2,355
Each (In a Pack of 2)
Aantal stuks
SAR 2 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 8 ±2LSB Serial (SPI) - 3.3 V, 5 V 9.27 x 6.35 x 3.3mm