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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Drain
- Voltage - Supply, Single/Dual (±)：2V ~ 11V, ±1V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：5.7µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LTC1841IS8#PBF is an ultralow power dual comparator in an 8-lead SOIC package. It operates from a single 2V to 11V or dual ±1V to ±5.5V supply with a typical quiescent current of 3.5μA. The device features open-drain outputs capable of sinking over 20mA and inputs that extend to the negative supply rail. Propagation delay is 12μs at 10mV overdrive. Operating temperature range spans -40°C to +85°C.
Feature Summary
- Ultralow quiescent current consumption for battery-powered applications
- Open-drain output stage capable of high sink currents
- Input common-mode voltage range includes the negative supply rail
- Eliminates cross-conduction current spikes during logic state transitions
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific IS8 suffix indicates industrial temperature grade (-40°C to +85°C) and plastic SOIC packaging. Confirm RoHS compliance status via official documentation before integration. Ensure supply voltage limits are respected within the specified operating range to maintain performance integrity.
Selection Notes
Select this component for designs requiring minimal static power draw and wide input common-mode ranges extending to ground. Suitable for low-voltage single-supply systems where input signals may approach the negative rail. Verify propagation delay requirements against the 12μs specification at low overdrive conditions.
Part Context
Part of the LTC1841/LTC1842/LTC1843 family of micropower comparators. The LTC1841 variant specifically lacks the internal voltage reference found in the LTC1842 and LTC1843 models, offering flexibility for external reference configurations while maintaining identical electrical characteristics and package footprint.
Replacement Considerations
LTC1841CS8#PBF (Commercial Temperature Grade)
FAQ
Does the LTC1841 include an internal voltage reference?
No, the LTC1841 does not have a built-in reference; only the LTC1842 and LTC1843 variants include the 1.182V reference.
What is the maximum input voltage range?
The inputs operate from the negative supply (V–) to within 1.3V of the positive supply (V+).
