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A/D Converters (Analog to Digital converter)

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A/D converter
An analog-to-digital converter (abbreviated ADC, A/D or A to D) is an electronic integrated circuit, which converts continuous signals to discrete digital numbers. The reverse operation is performed by a digital-to-analog converter (DAC). Typically, an ADC is an electronic device that converts an input analog voltage (or current) to a digital number.

Our database consists of following AD converters:

This is a 3 1/2 digit single chip digital multimeter LIS with auto-ranging function containing 3 1/2 digit dual-slope A/D converter voltage reference controller oscillator battery-life detector and LCD driver. This is most suitable for the pocket type digital multimeter because of low operating voltage(3V) and functions of auto-ranging display hold LCD display piezo buzzer direct driving and battery life indicator.


  • Low Operating Current
  • Low Operating Voltage (3V)
  • Dual-slope A/D Converter
  • Auto-ranging
  • Holding Function (Data,Range)
  • LCD Display Direct Driving
  • Voltage Doubler for LCD Driver On-cihp
  • Voltage regulator for LCD Driving
  • Piezo Buzzer Direct Driving
  • Power-on Initialize
  • Battery-life Detector
  • C-MOS Technology

This is a 3 3/4 digits with 42 segments bargraph single chip digital multimeter LSI.. The AD converter block incorporates two kind of dual-slope AD converter such as high-accuracy and high-speed converter. The high-accuracy AD converter performs accurate 3 3/4 digits digital display and the high-speed AD converter performs high-speed 42 segments bargraph display. The input attenuator part of this can be simplified because of incorporated resistance for resistance. This is suitable for high performance full-auto-ranging digital multimeters because of many functions controlled by internal CPU such as data hold data memory auto power-off and external relay driving which enables input range selection including current measurement mode.


  • 3 3/4 digits display (±3999)
  • 42 Segments Bargraph Display
  • Full Auto-ranging Measurement (20Times/sec)
  • Power-on Initialization
  • Auto Power-off Function
  • Data Hold Function
  • Data Memory Function
  • Relative Display Function
  • Low Operating Current
  • Low Operating Voltage (Battery Operation)
  • Reference Voltage On-chip (External Reference Voltage also available)
  • Capacitor Measurement Function
  • Rotary or Push type Input Mode selection
  • External Relay Driving
  • Piezo Buzzer Direct Driving
  • LCD Display
  • Serial Data Output (BCD Format)
  • C-MOS Technology

This is a low operating current, high performance 2-digit single chip A/D converter containing a sample/hold circuit, an oscillator, a 7-segment decoder, LED display driver and a control circuit. The LED display changes by the high-speed sampling rate of 4 times/s (typ). This realizes to apply with few external components, therefore it is most suited for digital meters, digital thermometers and the others.


  • 8bit Resolution, Successive Approximation Method
  • Low Input Current (1uA typ)
  • Dynamic LED direct drive
  • Sampling-rate (4 times/s typ)
  • Sample/Hold Circuit On-Die
  • CR Oscillation Circuit On-Die
  • Power-on Initialization
  • Offset Adjustment Terminal
  • Low operating current
  • Applicable with Few External Components
  • C-MOS technology
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