What is Dynamic Transient Stabilizer ^TM

　Ideal rail-to-rail input comparators with Dynamic Transient Stabilizer ^TM

　The propagation delay of the conventional general rail-to-rail input comparator may fluctuate 44% which is one of important characteristics when the input signal level fluctuates. So it is possible not to process the signal by the desired speed.
　In product development, this fluctuation of propagation delay must also be considered as a design margin, so it increases the design time. But if you use the circuit technology of Dynamic Transient Stabilizer ^TM, the stable response can be obtained with all ranges of input signals.
　New Japan radio contributes to the reduction of the propagation delay evaluation man-hours and design man-hours at each reference voltage required for applications using the conventional rail-to-rail input comparators.

Even though the input signal fluctuates, the fluctuation of propagation delay is very little

(Example) Voltage level detector circuit with a window comparator

Rail-to-rail input comparator series with Dynamic Transient Stabilizer ^TM

　NJR has a wide range of comparator lineup from ultra-low current consumption of 0.6uA to high speed of 42nsec, and including the number of circuits and output type.

　Rail-to-rail input comparator series

• ※2

  PP:Push-pull, OD: Open-drain

• ※3

  please contact us for details

• １．High output current can reduce the number of peripheral circuit parts
  
  • NJU77250 can output 65mA high current.
    NJU77212 (under development) can output 50mA high current, despite the ultra-low supply current of 0.6uA.

• ２．High EMI immunity design
  
  • NJU77230 has achieved high EMI immunity of EMIRR=62dB typ. @f=900MHz.
    Moreover, NJU77212 (under development) has achieved high EMI immunity of EMIRR=100dB typ. which is the industry-leading level. ^※4。
    Accordingly, the previously necessary filter parts such as capacitors, resisters are not required for improving the EMI immunity. It also contributes to high reliability design and reduction of design man-hours.
    
    • ※4

      NJU77212, as of July 2020, according to our research

• ３．Input tolerance function
  
  • NJU77212 (under development) has built-in protection circuits that protects post-stage circuit and prevents malfunction of electrical equipment when the input voltage exceeds the power supply. So the previously necessary protection devices such as diodes can be reduced. And it contributes to fail-safe design and reduction of design man-hours.

• ◎ The excellent temperature stability is suitable for automotive equipment and industrial equipment
  
  • he propagation delay fluctuation of NJU77250 is 0.05ns/°C to ambient temperature, and the temperature drift of its input offset voltage is 0.8uV/°C, so it can reduce the detection error.
    These characteristics are suitable for automotive equipment and industrial equipment applications that require stable and fast response in a wide temperature environment.