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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)：710nA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：60µs
- Hysteresis：50mV
- Operating Temperature：-40°C ~ 85°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 LTC1540IMS8#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 0.68µA (max) and includes a 1.182V ±2% reference output capable of sourcing up to 1mA. It offers programmable hysteresis via the HYST pin, TTL/CMOS compatible outputs, 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 bandgap reference with high drive capability
- Programmable hysteresis for noise immunity
- Glitch-free CMOS output stage eliminating crowbar currents
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the IMS8 suffix indicates the industrial temperature grade (-40°C to +85°C) and MSOP package. Confirm the #TRPBF suffix denotes tape and reel packaging. Ensure compatibility with existing PCB footprints for the 8-lead MSOP form factor before finalizing procurement orders.
Selection Notes
Select this component when ultra-low static current is critical for battery life. The built-in reference eliminates external resistor dividers for threshold setting. Verify that the required propagation delay and offset voltage meet application specifications, as these parameters vary slightly with supply voltage and temperature.
Part Context
This part belongs to the LTC1540 family of nanopower comparators. It is pin-compatible with the LTC1440 and other industry-standard comparators like the MAX921 and MAX931. The IMS8 variant specifically provides the industrial temperature rating compared to the commercial C-grade version.
Replacement Considerations
LTC1540CS8#TRPBF
FAQ
Can the reference output drive large capacitive loads?
The reference can drive up to 0.01µF directly without oscillation. For larger capacitance values up to 10µF, a series damping resistor must be inserted between the REF pin and the capacitor.
What is the maximum hysteresis voltage band?
The maximum voltage allowed between the REF and HYST pins is 50mV, which produces a maximum hysteresis voltage band of 100mV.
