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Product Detailed Parameters
- Description：IC COMPARATOR 1 W/VOLT REF 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：with Voltage Reference
- Number of Elements：1
- Output Type：CMOS, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 11V, ±1V ~ 5.5V
- Voltage - Input Offset (Max)：12mV @ 5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：680nA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：60µs
- Hysteresis：50mV
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The LTC1540CMS8#TRPBF is a nanopower comparator with an integrated reference, housed in an 8-lead MSOP package. It operates from a single 2V to 11V supply or dual ±1V to ±5.5V supplies. The device features ultralow quiescent current of 0.3µA typical and includes a 1.182V ±2% reference output capable of driving up to 0.01µF capacitors. It offers adjustable hysteresis via the HYST pin, TTL/CMOS compatible outputs sourcing up to 40mA, and input common mode range extending to the negative supply.
Feature Summary
- Ultralow power consumption with typical supply current of 0.3µA
- Integrated 1.182V reference output supporting bypass capacitor drive
- Programmable hysteresis for noise immunity control
- High-drive CMOS output stage eliminating crowbar switching currents
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the CMS8 designation corresponds to the commercial temperature grade (0°C to 70°C) and MSOP package style required for your design. Ensure compatibility with existing footprints if replacing legacy components like the MAX921 or MAX931.
Selection Notes
Select this component for applications requiring minimal static power draw while maintaining robust output drive capabilities. The wide supply voltage range supports both low-voltage battery systems and standard 5V logic environments. Consider the internal reference accuracy and programmable hysteresis features to simplify external component counts in threshold detection designs.
Part Context
This part belongs to the LTC1540 family of nanopower comparators. It shares pinout compatibility with the LTC1440 and certain Maxim Integrated parts. The device is designed to replace older micropower comparators where lower quiescent current and higher output drive are necessary without increasing board space requirements.
Replacement Considerations
Pin-compatible replacements include the LTC1440 and MAX921/MAX931 series. Verify that the replacement part meets the specific supply voltage and temperature range requirements of the original design before substitution.
