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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Tube
- 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 KA393D is a dual analog comparator manufactured by Fairchild Semiconductor, part of the KA393 series. It features an open-collector output type and operates within a supply voltage range of 18 V to 36 V. The device has a typical 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 and supports surface mount installation.
Feature Summary
- Dual differential comparison functionality for signal processing
- Open-collector output configuration for flexible interfacing
- Low power consumption design with minimal supply current draw
Applications
- Over-voltage protection circuits
- Voltage monitoring systems
- Power supply management control
Procurement Notes
Verify the manufacturer designation as Fairchild Semiconductor or its successor entities like onsemi, as corporate acquisitions may affect labeling. Confirm the specific suffix 'D' corresponds to the SOP-8 surface-mount package variant rather than through-hole options. Ensure the datasheet version matches the production lot requirements for compatibility with modern assembly processes.
Selection Notes
Select this component when a dual comparator with open-collector outputs is required for low-power applications. The SOP-8 package suits space-constrained surface-mount designs. Consider the 18 V minimum supply voltage constraint against system rail availability. Verify thermal dissipation limits relative to the ambient operating temperature range of 0°C to +70°C.
Part Context
The KA393D belongs to the KA393 family of analog comparators, which are industry-standard replacements for the LM393 series. This family provides general-purpose comparison capabilities suitable for various industrial and consumer electronics. The device integrates two independent comparators into a single compact package, optimizing board space while maintaining robust electrical performance specifications.
Replacement Considerations
- LM393DT
- KA393DTF
