TLC374CDR

Linear - Comparators

The TLC374CDR is an integrated linear-comparator circuit containing two low-level op-amps and two slew-rate-limited comparators. This linear-comparator chip provides precise comparison and switching information with a single supply. It is fabricated using advanced silicon-gate CMOS technology for higher speed and lower power consuming performance.

Application Field

The TLC374CDR can be used in many applications such as in analog to digital converters, data-acquisition systems and industrial control systems, to detect and convert the analog signal into a digital form. This is done by comparing the input analog signal to the reference voltage and providing a logic-level output, i.e. high or low. The device also provides precision in low-level detection with hysteresis and logic gates, as well as level switching with a single supply.

Due to its low power and advanced technology, the TLC374CDR can also be used in battery operated applications, like in hand-held devices. In these applications, the device is used to detect when the battery is low and switch on the energising circuits. The device is also used in temperature measurement applications, where it compares the input temperature sensor against a reference voltage.

Working Principle

The TLC374CDR is composed of two low-level op-amps and two slew-rate-limited comparators. The op-amps are connected in an inverting configuration and have an external feedback resistors to provide the user adjustable input offset. To limit the trigger level\'s current, an active protection circuit is used.

The comparators are provided with an output logic buffer to drive an external logic gate for further processing. This prevents the load from affecting the comparator stage. The TLC374CDR also has an internal hysteresis circuit to provide high input sensitivity and preventing chip from chattering when the input signals are close or oscillating.

The TLC374CDR can operate with a single supply ranging from +2.5V to +36V and has a wide range of supply protection level that prevents any catastrophic failure in case of power surges or shorted outputs. The power supply range also helps the users in getting multiple supply options for different applications.

Conclusion

The TLC374CDR is an integrated linear-comparator circuit used in many applications such as analog to digital converters, data-acquisition systems and even battery operated hand-held devices. It\'s composed of two low-level op-amps and two slew-rate-limited comparators and operates with a wide range of supply protection levels. Furthermore, slope compensation internal circuitry ensures a high-speed response and prevents false triggering. All these features make the TLC374CDR a very powerful and reliable integrated circuit.