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. 912-8144
FabrikantnummerAD7194BCPZ
FabrikantAnalog Devices
9,35 €
Each (In a Tray of 490)
Aantal stuks
Delta Sigma 8 24-bit - Single Ended Voltage Surface Mount LFCSP WQ 32 ±30LSB Serial (SPI/QSPI/Microwire) Single 2.7 to 5.25 V 5.1 x 5.1 x 0.75mm
RS-stocknr. 806-5588
FabrikantnummerAD7194BCPZ
FabrikantAnalog Devices
12,70 €
Each
Aantal stuks
Delta Sigma 8 24-bit - Single Ended Voltage Surface Mount LFCSP WQ 32 ±30LSB Serial (SPI/QSPI/Microwire) Single 2.7 to 5.25 V 5.1 x 5.1 x 0.75mm
RS-stocknr. 806-5575
FabrikantnummerAD7193BCPZ
FabrikantAnalog Devices
10,58 €
Each
Aantal stuks
Delta Sigma 8 24-bit - Single Ended Voltage Surface Mount LFCSP WQ 32 ±30ppm FSR Serial (SPI/Microwire) Single 2.7 to 5.25 V 5.1 x 5.1 x 0.75mm
RS-stocknr. 497-0206
FabrikantnummerAD7477AARMZ
FabrikantAnalog Devices
6,18 €
Each
Aantal stuks
SAR 1 10-bit 1000ksps Single Ended Voltage Surface Mount MSOP 8 ±0.5LSB Serial (SPI/QSPI/Microwire) - 2.5 V, 3.3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 522-8203
FabrikantnummerAD1674JNZ
FabrikantAnalog Devices
32,50 €
Each
Aantal stuks
SAR 1 12-bit 100ksps Single Ended Voltage Through Hole PDIP 28 ±1LSB Parallel - - 39.75 x 14.73 x 4.95mm
RS-stocknr. 697-7088
FabrikantnummerAD7714YNZ
FabrikantAnalog Devices
18,69 €
Each
Aantal stuks
Delta Sigma 5 24-bit 1ksps Differential, Pseudo Differential Voltage Through Hole PDIP 24 ±0.002%FSR Serial (SPI) - 3 V, 5 V 31.75 x 6.35 x 3.3mm
RS-stocknr. 538-7172
FabrikantnummerAD7490BRUZ
FabrikantAnalog Devices
11,48 €
Each
Aantal stuks
SAR 16 12-bit 1000ksps Single Ended Voltage Surface Mount TSSOP 28 ±1LSB Serial (SPI/QSPI/Microwire) - 3.3 V, 5 V 9.7 x 4.4 x 1.05mm
RS-stocknr. 629-3129
FabrikantnummerAD7687BRMZ
FabrikantAnalog Devices
18,95 €
Each
Aantal stuks
SAR 1 16-bit 250ksps Differential Voltage Surface Mount MSOP 10 ±1.5LSB Serial (SPI/QSPI/Microwire) - 2.5 V, 3.3 V, 5 V 3 x 3 x 0.85mm
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. 709-4970
FabrikantnummerAD7890ARZ-10
FabrikantAnalog Devices
22,24 €
Each
Aantal stuks
SAR 8 12-bit 117ksps Single Ended Voltage Surface Mount SOIC W 24 ±1LSB Serial (SPI) - 5 V 15.6 x 7.6 x 2.35mm
RS-stocknr. 506-1656
FabrikantnummerLTC2414CGN#PBF
FabrikantAnalog Devices
12,01 €
Each
Aantal stuks
Delta Sigma 8 24-bit 0.008ksps Differential, Single Ended Voltage Surface Mount SSOP 28 14ppm Vref Serial (SPI) - 3.3 V, 5 V 9.98 x 3.99 x 1.5mm
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. 412-668
FabrikantnummerAD7705BRZ
FabrikantAnalog Devices
9,17 €
Each
Aantal stuks
Delta Sigma 2 16-bit 0.5ksps Differential Voltage Surface Mount SOIC W 16 ±0.003%FSR Serial (SPI) - 3 V, 5 V 10.5 x 7.6 x 2.35mm
RS-stocknr. 629-3258
FabrikantnummerAD9248BSTZ-20
FabrikantAnalog Devices
29,34 €
Each
Aantal stuks
Pipelined 2 14-bit 20000ksps Differential, Single Ended Voltage Surface Mount LQFP 64 ±4.5LSB Parallel - 3 V 7 x 7 x 1.4mm
RS-stocknr. 538-5328
FabrikantnummerAD7680ARMZ
FabrikantAnalog Devices
11,32 €
Each
Aantal stuks
SAR 1 16-bit 100ksps Single Ended Voltage Surface Mount MSOP 8 ±4LSB Serial (SPI/QSPI/Microwire) - 3.3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 497-0199
FabrikantnummerAD7476ABRMZ
FabrikantAnalog Devices
9,83 €
Each
Aantal stuks
SAR 1 12-bit 1000ksps Single Ended Voltage Surface Mount MSOP 8 ±1.5LSB Serial (SPI/QSPI/Microwire) - 2.5 V, 3.3 V, 5 V 3 x 3 x 0.85mm
RS-stocknr. 851-4639
FabrikantnummerLTC2486IDE#PBF
FabrikantAnalog Devices
5,87 €
Each
Aantal stuks
Delta Sigma 4 16-bit 15sps Differential Voltage Surface Mount DFN 14 20ppm Vref Serial (SPI) Single 2.7 to 5.5 V 4 x 3 x 0.75mm
RS-stocknr. 709-1876
FabrikantnummerAD7684BRMZRL7
FabrikantAnalog Devices
12,66 €
Each
Aantal stuks
SAR 1 16-bit 100ksps Differential Voltage Surface Mount MSOP 8 ±3LSB Serial (SPI) - 5 V 3 x 3 x 0.85mm
RS-stocknr. 538-7396
FabrikantnummerAD7709ARUZ
FabrikantAnalog Devices
8,51 €
Each
Aantal stuks
Delta Sigma 4 16-bit 0.105ksps Differential, Pseudo Differential Voltage Surface Mount TSSOP 24 ±30ppm FSR Serial (SPI) - 3 V, 5 V 7.8 x 4.4 x 1.05mm
RS-stocknr. 160-3360
FabrikantnummerAD7920AKSZ-500RL7
FabrikantAnalog Devices
3,223 €
Each (On a Reel of 500)
Aantal stuks
SAR 1 12-bit 250ksps Single Ended Voltage Surface Mount SC-70 6 ±0.75LSB Serial (SPI/QSPI/Microwire) Single 2.35 to 5.25 V 2.2 x 1.35 x 1mm