Time Domain Reflectometry (TDR) is an electrical diagnostic technique that transmits an incident pulse and analyzes the reflected pulse to determine the characteristics of a transmission line. Comparators can be used in TDR systems to detect the time difference between the incident pulse and the reflected pulse on transmission lines. With the knowledge of a cable's velocity of propagation (VoP) and the speed of light (c), use of comparators in TDR systems allow for applications such as cable length testing and cable fault detection.
TLV1872 has a low propagation delay which results in lower additive error to TDR time measurements.
TLV1872 | |
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Input Supply Voltage: VCCI - VEEI | 2.7V to 40V |
Output Negative Supply Voltage: VEEO | VEEI to VEEI + 18V |
Output Positive Supply Voltage: VCCO | VEEO + 2.7V to VCCI |
Propagation Delay (typ.): TPHL/TPLH | 65ns |
Quiescent Current: IQ | 70uA per channel |