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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รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 379-2516
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3208-CI/P
Brand :Microchip
THB120.162
Each: (In a Pack of 5)
Units
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±2LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS Stock No. 889-5657
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3208-CI/P
Brand :Microchip
THB100.669
Each (In a Tube of 30)
Units
SAR 8 12-bit 100ksps Pseudo Differential, Single Ended Voltage Through Hole PDIP 16 ±2LSB Serial (SPI) - 5 V 19.05 x 6.35 x 3.3mm
RS Stock No. 709-6162
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7192BRUZ
THB329.28
Each
Units
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 Stock No. 669-6064
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3008-I/P
Brand :Microchip
THB82.025
Each: (In a Pack of 2)
Units
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 Stock No. 889-5143
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3008-I/P
Brand :Microchip
THB64.199
Each (In a Tube of 30)
Units
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 Stock No. 669-6076
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3421A0T-E/CH
Brand :Microchip
THB77.25
Each: (In a Pack of 2)
Units
Delta Sigma 1 18-bit 0.004ksps Differential, Single Ended Voltage Surface Mount SOT-23 6 35ppm FSR Serial (I2C) - 5 V 2.95 x 1.63 x 1.1mm
RS Stock No. 170-8171
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICL7107CPLZ
THB385.003
Each (In a Tube of 9)
Units
Dual Slope 1 3.5 digit 0.003ksps Differential Voltage Through Hole PDIP 40 ±1Counts - - - 53.2 x 14.73 x 4.95mm
RS Stock No. 889-5118
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3421A0T-E/CH
Brand :Microchip
THB69.077
Each (On a Reel of 3000)
Units
Delta Sigma 1 18-bit 0.004ksps Differential, Single Ended Voltage Surface Mount SOT-23 6 35ppm FSR Serial (I2C) - 5 V 2.95 x 1.63 x 1.1mm
RS Stock No. 761-8970
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LTC1290DCN#PBF
THB489.77
Each
Units
SAR 8 12-bit 50kHz Differential, Single Ended Voltage Through Hole PDIP 20 ±0.5LSB Serial Dual, Single 5 V 26.924 x 6.477 x 3.683mm
RS Stock No. 162-4642
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADC12130CIWM/NOPB
THB322.214
Each (In a Tube of 45)
Units
SAR 2 12-bit + Sign 114ksps Differential, Pseudo Differential Voltage Surface Mount SOIC W 16 ±2LSB Serial (SPI/QSPI/Microwire) - 3.3 V, 5 V 10.5 x 7.6 x 2.3mm
RS Stock No. 798-9212
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADE7913ARIZ
THB358.26
Each
Units
Delta Sigma 3 - - Differential Voltage Surface Mount SOIC 20 - Serial (SPI) Single 2.97 to 3.63 V 15.4 x 7.6 x 2.44mm
RS Stock No. 911-5713
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3008-I/SL
Brand :Microchip
THB62.123
Each (In a Tube of 50)
Units
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 Stock No. 669-6086
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3424-E/SL
Brand :Microchip
THB121.50
Each
Units
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 Stock No. 716-5860
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CS5530-ISZ
Brand :Cirrus Logic
THB198.88
Each
Units
Delta Sigma 1 24-bit 3840sps Differential Voltage Surface Mount SSOP 20 ±0.003%FSR Serial (SPI) Dual, Single 5 V 7.5 x 5.6 x 1.88mm
RS Stock No. 412-399
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7705BRUZ
THB336.71
Each
Units
Delta Sigma 2 16-bit 0.5ksps Differential Voltage Surface Mount TSSOP 16 ±0.003%FSR Serial (SPI) - 3 V, 5 V 5 x 4.4 x 1.05mm
RS Stock No. 889-5180
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3424-E/SL
Brand :Microchip
THB112.17
Each (In a Tube of 57)
Units
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 Stock No. 709-6604
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7703BNZ
THB2,411.50
Each
Units
Delta Sigma 1 20-bit 16ksps Single Ended Voltage Through Hole PDIP 20 ±0.002%FSR Serial (SPI) - - 7.11 x 5 x 4.57mm
RS Stock No. 169-8394
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CS5530-ISZ
Brand :Cirrus Logic
THB184.062
Each (In a Tube of 66)
Units
Delta Sigma 1 24-bit 3840sps Differential Voltage Surface Mount SSOP 20 ±0.003%FSR Serial (SPI) Dual, Single 5 V 7.5 x 5.6 x 1.88mm
RS Stock No. 533-8675
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADC12130CIWM/NOPB
THB296.49
Each
Units
SAR 2 12-bit + Sign 114ksps Differential, Pseudo Differential Voltage Surface Mount SOIC W 16 ±2LSB Serial (SPI/QSPI/Microwire) - 3.3 V, 5 V 10.5 x 7.6 x 2.3mm
RS Stock No. 709-5128
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD9201ARSZ
THB357.17
Each
Units
Pipelined 2 10-bit 20000ksps Differential, Single Ended Voltage Surface Mount SSOP 28 ±2.5LSB Parallel - 3 V 10.2 x 5.3 x 1.75mm