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. 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. 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. 911-5713
FabrikantnummerMCP3008-I/SL
FabrikantMicrochip
€ 1,543
Each (In a Tube of 50)
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. 822-5705
FabrikantnummerLTC2991IMS#PBF
FabrikantAnalog Devices
€ 9,91
Each
Aantal stuks
- 8 14-bit - Single Ended Current, Temperature, Voltage Surface Mount MSOP 16 ±2LSB Serial (I2C) Single 2.9 to 5.5 V 4.039 x 3 x 0.86mm
RS-stocknr. 709-6168
FabrikantnummerAD7190BRUZ
FabrikantAnalog Devices
€ 11,08
Each
Aantal stuks
Delta Sigma 5 24-bit 4.8ksps Differential, Pseudo Differential Voltage Surface Mount TSSOP 24 ±15ppm FSR Serial (SPI) - 5 V 7.8 x 4.4 x 1.05mm
RS-stocknr. 697-7114
FabrikantnummerAD7793BRUZ
FabrikantAnalog Devices
€ 10,14
Each
Aantal stuks
Delta Sigma 3 24-bit 0.47ksps Differential Voltage Surface Mount TSSOP 16 ±15ppm FSR Serial (SPI) - 3.3 V, 5 V 5 x 4.4 x 1.05mm
RS-stocknr. 709-8751
FabrikantnummerADS1278IPAPT
€ 36,23
Each
Aantal stuks
Delta Sigma 8 24 bit 144ksps Differential, Single Ended Voltage Surface Mount HTQFP 64 ±0.0012%FSR Serial (SPI) - 5 V 10 x 10 x 1mm
RS-stocknr. 921-5068
FabrikantnummerADS1278IPAPT
€ 28,541
Each (On a Reel of 250)
Aantal stuks
Delta Sigma 8 24 bit 144ksps Differential, Single Ended Voltage Surface Mount HTQFP 64 ±0.0012%FSR Serial (SPI) - 5 V 10 x 10 x 1mm
RS-stocknr. 850-7792
FabrikantnummerAD7170BCPZ-500RL7
FabrikantAnalog Devices
€ 2,258
Each (In a Pack of 5)
Aantal stuks
Delta Sigma 1 12-bit 125sps Differential Voltage Surface Mount LFCSP 10 ±0.1LSB Serial (SPI) Single 2.7 to 5.25 V 3.1 x 3.1 x 0.8mm
RS-stocknr. 923-3704
FabrikantnummerADS1110A1IDBVT
€ 3,075
Each (On a Reel of 250)
Aantal stuks
Delta Sigma 1 16-bit 0.128ksps Differential, Single Ended Voltage Surface Mount SOT-23 6 ±0.01%FSR Serial (I2C) - 5 V 2.9 x 1.6 x 1.15mm
RS-stocknr. 538-7510
FabrikantnummerAD7708BRUZ
FabrikantAnalog Devices
€ 8,71
Each
Aantal stuks
Delta Sigma 10 16-bit 1.365ksps Differential, Pseudo Differential Voltage Surface Mount TSSOP 28 ±15ppm FSR Serial (SPI) - 3 V, 5 V 9.7 x 4.4 x 1.05mm
RS-stocknr. 660-7222
FabrikantnummerADS1110A1IDBVT
€ 2,99
Each
Aantal stuks
Delta Sigma 1 16-bit 0.128ksps Differential, Single Ended Voltage Surface Mount SOT-23 6 ±0.01%FSR Serial (I2C) - 5 V 2.9 x 1.6 x 1.15mm
RS-stocknr. 412-371
FabrikantnummerAD7730BRUZ
FabrikantAnalog Devices
€ 18,09
Each
Aantal stuks
Delta Sigma 2 24-bit 1.2ksps Differential Voltage Surface Mount TSSOP 24 18ppm FSR Serial (SPI) - 5 V 7.8 x 4.4 x 1.05mm
RS-stocknr. 160-9914
FabrikantnummerAD7170BCPZ-500RL7
FabrikantAnalog Devices
€ 1,301
Each (On a Reel of 500)
Aantal stuks
Delta Sigma 1 12-bit 125sps Differential Voltage Surface Mount LFCSP 10 ±0.1LSB Serial (SPI) Single 2.7 to 5.25 V 3.1 x 3.1 x 0.8mm
RS-stocknr. 538-6135
FabrikantnummerAD7789BRMZ
FabrikantAnalog Devices
€ 6,46
Each
Aantal stuks
Delta Sigma 1 24-bit 0.017ksps Differential Voltage Surface Mount MSOP 10 ±15ppm FSR Serial (SPI) - 3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 697-7041
FabrikantnummerAD7418ARMZ
FabrikantAnalog Devices
€ 6,89
Each
Aantal stuks
SAR 1 10-bit - Single Ended Voltage Surface Mount MSOP 8 ±1LSB Serial (I2C) - 3.3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 660-7228
FabrikantnummerADS1110A0IDBVT
€ 4,52
Each
Aantal stuks
Delta Sigma 1 16-bit 0.128ksps Differential, Single Ended Voltage Surface Mount SOT-23 6 ±0.01%FSR Serial (I2C) - 5 V 2.9 x 1.6 x 1.15mm
RS-stocknr. 162-4973
FabrikantnummerADS7818EB/250
€ 3,928
Each (On a Reel of 250)
Aantal stuks
SAR 1 12-bit 500ksps Pseudo Differential Voltage Surface Mount MSOP 8 ±1LSB Serial - 5 V 3 x 3 x 0.97mm
RS-stocknr. 162-6116
FabrikantnummerADS1148IPW
€ 7,70
Each (In a Tube of 50)
Aantal stuks
Delta Sigma 8 16-bit 2ksps Differential, Single Ended Voltage Surface Mount TSSOP 28 ±1LSB Serial (SPI) Dual, Single 2.7 to 5.25 V 9.8 x 4.5 x 1.05mm
RS-stocknr. 703-7942
FabrikantnummerMCP3428-E/ST
FabrikantMicrochip
€ 3,22
Each
Aantal stuks
Delta Sigma 4 16-bit 0.015ksps Differential Voltage Surface Mount TSSOP 14 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 5.1 x 4.5 x 1.05mm