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. 709-4544
FabrikantnummerADS1115IDGST
€ 5,43
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. 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. 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. 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. 921-5068
FabrikantnummerADS1278IPAPT
€ 32,822
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. 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. 732-1537
FabrikantnummerADS1148IPW
€ 8,94
Each
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. 923-3707
FabrikantnummerADS1110A0IDBVT
€ 2,84
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. 145-6696
FabrikantnummerADS7844NB
€ 6,902
Each (In a Tube of 70)
Aantal stuks
SAR 8 12-bit 200ksps Differential, Single Ended Voltage Surface Mount SSOP 20 ±1LSB Serial (SPI) - 5 V 7.2 x 5.3 x 1.95mm
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. 660-4816
FabrikantnummerADS7818EB/250
€ 6,05
Each
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. 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. 750-6713
FabrikantnummerADS1118IDGST
€ 5,26
Each
Aantal stuks
Delta Sigma 4 16-bit 860sps Differential, Single Ended Voltage Surface Mount MSOP 10 1LSB Serial (SPI) Single 3.3 V 3.1 x 3.1 x 1.1mm
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. 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. 660-4204
FabrikantnummerADS8320EB/250
€ 11,09
Each
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. 921-5315
FabrikantnummerADS1118IDGST
€ 3,306
Each (On a Reel of 250)
Aantal stuks
Delta Sigma 4 16-bit 860sps Differential, Single Ended Voltage Surface Mount MSOP 10 1LSB Serial (SPI) Single 3.3 V 3.1 x 3.1 x 1.1mm
RS-stocknr. 774-1212
FabrikantnummerADS8028IRTJT
€ 5,79
Each
Aantal stuks
SAR 8 12-bit 1Msps Single Ended Voltage Surface Mount QFN 20 ±1LSB Serial (SPI) Single 3 V 4.15 x 4.15 x 0.75mm
RS-stocknr. 732-1648
FabrikantnummerADS7924IRTET
€ 2,58
Each
Aantal stuks
SAR 4 12-bit 100ksps Differential Voltage Surface Mount WQFN 16 ±1.5LSB Serial (SPI) Single 5 V 3.15 x 3.15 x 0.8mm