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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Type：General Purpose
- Number of Elements：2
- Output Type：-
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：5mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：18mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The KA393DTF is a dual analog comparator manufactured by onsemi, formerly Fairchild Semiconductor. It operates within a supply voltage range of 18 V to 36 V and features an open collector output type. The device has a response time of 1.4 us and draws a working power supply current of 1 mA. Each channel provides an output current capability of 18 mA. Input characteristics include a maximum input offset voltage (Vos) of 9 mV and an input bias current (Ib) of 250 nA. The component is housed in an SOP-8 package for surface mount installation and supports operation temperatures from 0 C to + 70 C.
Feature Summary
- Dual differential comparison functionality integrated into a single compact package
- Open collector output configuration allows flexible interfacing with various logic families
- Low power consumption design suitable for battery-operated or energy-efficient applications
Applications
- Over-voltage protection circuits
- Voltage monitoring systems
- Window comparator designs
Procurement Notes
Verify the manufacturer status carefully as the KA393DTF is listed with an end-of-life status indicating it will be discontinued. Confirm availability through authorized distributors or secondary market suppliers. Ensure that any substitute components maintain pin compatibility and electrical specifications to avoid redesign efforts. Check RoHS compliance details before finalizing procurement decisions.
Selection Notes
Select this component when a dual comparator with low input offset voltage and high output drive capability is required. The SOP-8 package is ideal for space-constrained printed circuit board layouts. Consider the 1.4 us response time for timing-sensitive applications. Verify that the 36 V maximum supply voltage aligns with the system power rails. Evaluate thermal dissipation requirements given the 570 mW power dissipation rating.
Part Context
This part belongs to the KA393 series of analog comparators. It is functionally similar to other industry-standard dual comparator ICs but is specific to onsemi's manufacturing process. The transition from Fairchild Semiconductor to onsemi affects branding but not the underlying silicon design. This component serves as a general-purpose solution for linear comparison tasks in industrial and consumer electronics.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided data.
