LTC1045 TTL RS-232 Converter

A simple way to build a battery-powered RS-232 receiver  circuit is shown on the following schematic diagram. This circuit convert RS232 level to TTL level. Because the 100 KΩ resistor prevents device damage, the input voltage can be driven as much as +- 30V without adverse effects. The LTC1045 draws only 100 μA of quiescent current, and has a propagation delay of 1.2 μs with 1 MΩ RSET resistor at pin 12. This circuit requires only a single 5 V supply.

Simple RS 232 Receiver circuit schematic diagram

[Circuit’s schematic diagram source: seekic.com]

This entry was posted in Signal Processing, Test and Measurement and tagged . Bookmark the permalink.,
Possibly Related to "LTC1045 TTL RS-232 Converter" Circuits

  • Voltage To Frequency Converter
    Using this circuit, we can accept positive or negative or differential control voltages. When the control voltage is zero, the output frequency is zero. To charge the timing capacitor C1 linearly, the 741 op amp forms a current source controlled … Continue reading →...
  • Extending 555 Timer’s Delay with Integrator
    555 IC is very popular component for timer circuit. With integrator circuit, we can extend the timing period of 555IC timer with reasonable capacitor size. With conventional 555IC timer configuration, the timing capacitor will be large compared to integrator version. … Continue reading →...
  • OP90 Single-Supply Current Monitor
    This is Single-Supply Current Monitor circuit. Amplifying the voltage drop across a resistor placed in a series with the current to be measured is the essential of current monitoring. However it is difficult because with low precision op amps this … Continue reading →...
  • Isolated 15 to 1000V DC-DC Converter
    The circuit shown in the schematic diagram below is an isolated dc-to-dc step up converter. Being isolated means that there is no electrical connection between the input and the output. We can say that there will be no current or … Continue reading →...
  • Light Level Droplets Detector
    This is a circuit of Low-Light Level Drop Detector. This circuit utilize self-biasing configuration to detect small changes in light level. This circuit usually used in monitoring very low droplets rates. The collector of the transistor gives feedback that is … Continue reading →...

Comments are closed.