Discrete Voltage Comparison A/D converter MCQs. In one direction of ramping, the integrator is driven by the positive analog input signal (producing a … Although this circuit could appear at the front of a delta-sigma … The op-amp circuit of figure 2 below was chosen for simplicity. black: dual-slope integration. The integration time and the clock rate of the counter are related such that a full-scale input (1.999V) gives 1999 counts. It consists of five blocks, an op-amp used as an integrator, a zero comparator, clock pulse generator, a set of decimal counters and a … The level detector is a device similar to a voltage comparator. The equivalent weight of LSB in a four-bit variable resistive divider D/A converter is. Dual Slope Integrator A/D Converter MCQs. A dual-slope integrator is provided in the usual manner with input switches for a measured voltage and reference voltage and with a first counter having a count capacitor N 1, in addition to the usual integrating resistor and integrator condenser in circuit with an integrating amplifier.The output of the latter is applied to a comparator and a clock-pulse generator produces the counting pulses. Dual-Slope ADC Architecture A dual-slope ADC (DS-ADC) integrates an unknown input voltage (VIN) for a fixed amount of time (TINT), then "de-integrates" (TDEINT) using a known reference voltage (VREF) for a variable amount of time (see Figure 2). "An integrating ADC (also dual-slope or multi-slope ADC) applies the unknown input voltage to the input of an integrator and allows the voltage to ramp for a fixed time period (the run-up period). Dual Slope Digital Voltmeter ... Then the output signal of integrator experiences a negative slope, which is constant and proportional to the magnitude of the input voltage. The output voltage from integrator (E o) is compared with the fixed voltage of an internal reference source, and, when E o reaches that level, the detector produces an output pulse. Voltage to Frequency A/D converter MCQs. Hence the name given to the technique is dual slope integration technique. An op-amp employed as an integrator. 1. Counter Type or Pulse Width Type A/D Converter MCQs. Figure 2. The TC500 is the base (16-bit max) device and requires both positive and negative power supplies. From this, you can infer that the clock speed is 2000 counts/300 ms = 6667 Hz (not the 2000 Hz that you seem to be assuming). As a minimum, each device contains the integrator, zero crossing comparator and proc essor interface logic. Circuit and Calculations To get a basis to use this integrator it is necessary to calculate an analysis of the circuit. 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