Features (For VS = 5V, typical unless otherwise noted) Supply current 13 μA Propagation delay 4 μs Input offset voltage 0.3 mV CMRR 100 dB PSRR 100 dB Positive and negative hysteresis control Adjustable hysteresis 1 mV/mV Reference voltage 2.048V Reference voltage accuracy 0.25% Reference voltage source current 1 mA Wide supply voltage range 2.7V to 12V Operating temperature range ambient −40°C to 125°C Description 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 micropower (35 µW), low offset voltage (0.75 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. Applications • Precision threshold detection • Battery monitoring • Battery management systems • Zero crossing detectors

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Datasheet

Title		Size	Date	Other Language
	LMP7300 Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis	902 Kbytes	23-Apr-09	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1639: Application Note 1639 LMP7300 Single Precision Comparator with Reference Evaluation Boards (SOIC and MSOP)	1191 Kbytes	2-Jun-08	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-1873: Application Note 1873 DC Parameters	249 Kbytes	19-Jun-08	中文

Design Tools

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Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMP7300MA	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP7300MAX	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP7300MM	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP7300MME	VIP50CLZ3	0	1755	0	0	315000	12	89382110
LMP7300MMX	VIP50CLZ3	0	1755	0	0	315000	12	89382110

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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