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. 669-6095
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3424-E/ST
Brand :Microchip
THB123.99
Each
Units
Delta Sigma 4 18-bit 0.004ksps Differential, Single Ended Voltage Surface Mount TSSOP 14 35ppm FSR Serial (I2C) - 5 V 5 x 4.4 x 0.9mm
RS Stock No. 709-5581
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD974ARSZ
THB1,921.71
Each
Units
- 4 16-bit 200ksps Single Ended Voltage Surface Mount SSOP 28 ±3LSB Serial (SPI) - 5 V 10.2 x 5.3 x 1.75mm
RS Stock No. 709-8919
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADS1178IPAPT
THB559.35
Each
Units
Delta Sigma 8 16-bit 52ksps Differential, Single Ended Voltage Surface Mount HTQFP 64 ±1LSB Serial (SPI) - 5 V 10 x 10 x 1mm
RS Stock No. 496-7143
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7921ARMZ
THB193.92
Each
Units
SAR 2 12-bit 250ksps Single Ended Voltage Surface Mount MSOP 8 ±1.5LSB Serial (SPI/QSPI/Microwire) - 3 V, 5 V 3 x 3 x 0.85mm
RS Stock No. 889-5948
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3428-E/SL
Brand :Microchip
THB101.54
Each (In a Tube of 57)
Units
Delta Sigma 4 16-bit 0.015ksps Differential Voltage Surface Mount SOIC 14 10ppm FSR Serial (I2C) Single 2.7 to 5.5 V 8.65 x 3.9 x 1.25mm
RS Stock No. 662-0344
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.TLC5510AINS
THB239.64
Each
Units
Semi Flash 1 8 bit 20Msps Single Ended Voltage Surface Mount SOP 24 ±1LSB Parallel - 5 V 15 x 5.3 x 1.95mm
RS Stock No. 709-6623
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7712ARZ
THB1,280.30
Each
Units
Delta Sigma 2 24-bit 1.028ksps Differential, Single Ended Voltage Surface Mount SOIC W 24 ±0.003%FSR Serial - 5 V, 10 V 15.6 x 7.6 x 2.35mm
RS Stock No. 162-4633
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADC08100CIMTC/NOPB
THB297.31
Each (In a Tube of 61)
Units
- 1 8-bit 100000ksps Single Ended Voltage Surface Mount TSSOP 24 ±1.3LSB Parallel - 3 V 7.8 x 4.4 x 0.9mm
RS Stock No. 506-1707
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LTC2440CGN#PBF
THB462.72
Each
Units
Delta Sigma 1 24-bit 4ksps Differential Voltage Surface Mount SSOP 16 15ppm Vref Serial (SPI) - 5 V 4.98 x 3.99 x 1.5mm
RS Stock No. 102-5605
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADC121S021CIMF/NOPB
THB46.22
Each (On a Reel of 1000)
Units
SAR 1 12-bit 200ksps Single Ended Voltage Surface Mount SOT-23 6 ±1LSB Serial (SPI) - 3.3 V, 5 V 2.92 x 1.6 x 1.02mm
RS Stock No. 697-7029
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7356BRUZ
THB522.00
Each
Units
SAR 2 12-bit 5000ksps Differential Voltage Surface Mount TSSOP 16 ±1LSB Serial (SPI/QSPI/Microwire) - 2.5 V 5 x 4.4 x 1.05mm
RS Stock No. 709-4544
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADS1115IDGST
THB182.27
Each
Units
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 Stock No. 889-5225
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3202-CI/SN
Brand :Microchip
THB69.132
Each (In a Tube of 100)
Units
SAR 2 12-bit 100ksps Pseudo Differential, Single Ended Voltage Surface Mount SOIC 8 ±2LSB Serial (SPI) - 3.3 V, 5 V 4.9 x 3.9 x 1.25mm
RS Stock No. 915-5865
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7124-4BRUZ
THB318.05
Each
Units
Delta Sigma 4 18-bit 19200sps Differential, Pseudo Differential, Single Ended Voltage Surface Mount TSSOP 24 +20ppm FSR Serial (SPI/QSPI/Microwire) Single 1.65 to 3.6 V 7.9 x 4.5 x 1.05mm
RS Stock No. 504-5878
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADC08100CIMTC/NOPB
THB325.39
Each
Units
- 1 8-bit 100000ksps Single Ended Voltage Surface Mount TSSOP 24 ±1.3LSB Parallel - 3 V 7.8 x 4.4 x 0.9mm
RS Stock No. 759-0957
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AD7324BRUZ
THB384.56
Each
Units
SAR 4 12-bit 1Msps Differential, Pseudo Differential, Single Ended Voltage Surface Mount TSSOP 16 ±1.1LSB Serial (SPI/QSPI/Microwire) Dual - 5.1 x 4.5 x 1.05mm
RS Stock No. 506-1527
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LTC1867CGN#PBF
THB574.93
Each
Units
SAR 8 16-bit 200ksps Differential, Single Ended Voltage Surface Mount SSOP 16 ±4LSB Serial (SPI/Microwire) - 5 V 4.98 x 3.99 x 1.5mm
RS Stock No. 709-4532
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADS1113IDGST
THB166.17
Each
Units
Delta Sigma 1 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 Stock No. 923-6911
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ADS1115IDGST
THB134.919
Each (On a Reel of 250)
Units
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 Stock No. 403-913
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MCP3202-CI/SN
Brand :Microchip
THB75.60
Each: (In a Pack of 2)
Units
SAR 2 12-bit 100ksps Pseudo Differential, Single Ended Voltage Surface Mount SOIC 8 ±2LSB Serial (SPI) - 3.3 V, 5 V 4.9 x 3.9 x 1.25mm