The LMP7300 is a combination comparator and reference with ideal specifications for precision threshold detecting. The precision 2.048V reference comes with a 0.25% maximum error. The comparator features micopower (35 µW), low offset voltage (.75 mV max), and independent adjustable positive and negative hysteresis. Hysteresis control for the comparator is accomplished through two external pins. The HYSTP pin sets the positive hysteresis and the HYSTN pin sets the negative hysteresis. The comparator design isolates the VIN source impedance and the programmable hysteresis components. This isolation prevents any undesirable interaction allowing the IC to maintain a precise threshold voltage during level detection. The combination of low offset voltage, external hysteresis control, and precision voltage reference provides an easy to use micropower precision threshold detector. The LMP7300 open collector output makes it ideal for mixed voltage system designs. The output voltage upper rail is unconstrained by VCC and can be pulled above VCC to a maximum of 12V. The LMP7300 is a member of the LMP® precision amplifier family.
The LMP7300 is a combination comparator and reference designed for precision threshold detecting. It features a precision 2.048V reference with a 0.25% maximum error and a micropower comparator with low offset voltage and independent adjustable positive and negative hysteresis. The design isolates the voltage source impedance and programmable hysteresis components to maintain a precise threshold voltage during level detection.
| Supply current | 13 yA |
|---|---|
| Propagation delay | 4us |
| Input offset voltage | 0.3mV |
| Reference voltage | 2.048V |
| Reference voltage accuracy | 0.25% |
| Wide supply voltage range | 2.7V to 12V |
| Operating temperature range | -40°C to 125°C |
The reference voltage is 2.048V.
The supply voltage range is 2.7V to 12V.
The input offset voltage maximum is 0.75 mV.