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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：CMOS, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 11V, ±1V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：40mA
- Current - Quiescent (Max)：5.7µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：15µs
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：8-PDIP
- Grade：-
- Qualification：-
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Overview
The Analog Devices LTC1441IN8#PBF is a dual ultralow power comparator housed in an 8-lead PDIP package. It operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply, drawing 3.5µA typical supply current at 5V and 3.5µA to 5.7µA across the industrial temperature range of -40°C to +85°C. The device features TTL/CMOS outputs capable of sourcing up to 40mA and sinking 5mA, with propagation delays of 8µs at 100mV overdrive and 15µs at 10mV overdrive.
Feature Summary
- Dual comparators with integrated CMOS output stages that source up to 40mA without generating crowbar switching currents during logic transitions.
- Inputs operate from the negative supply rail to within 1.3V of the positive supply, maintaining microampere quiescent currents while driving loads.
- Outputs swing between the negative and positive supply rails, ensuring compatibility with standard digital logic families.
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific suffix IN8#PBF against official Analog Devices documentation to confirm the industrial temperature grade (-40°C to +85°C) and lead-free PDIP-8 packaging. Ensure the procurement channel provides valid traceability for the #PBF designation. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before finalizing orders.
Selection Notes
Select this component when dual independent comparison is required alongside high output drive capability. The wide input common-mode range extending to the negative supply simplifies circuit design. Verify that the 2V minimum operating voltage aligns with the target application's power constraints and that the industrial temperature range meets environmental requirements.
Part Context
This device belongs to the LTC1440/LTC1441/LTC1442 family of micropower comparators featuring built-in references. While the LTC1440 includes a ground pin and the LTC1442 adds programmable hysteresis, the LTC1441 provides two independent comparators with rail-to-rail outputs. All variants share the same ultralow power architecture and package options.
Replacement Considerations
LTC1441IS8#PBF (SOIC-8 package)
FAQ
What is the maximum continuous source current for the LTC1441 outputs?
Each comparator output can continuously source up to 40mA.
Does the LTC1441 support adjustable hysteresis?
No, adjustable hysteresis is a feature of the LTC1440 and LTC1442 models only; the LTC1441 does not include a HYST pin.
