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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：7mV @ 30V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：16mA @ 5V
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 150°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903HYDT is a dual low-power voltage comparator manufactured by STMicroelectronics, housed in an SOIC-8 surface-mount package. It operates from a single supply ranging from 2 V to 36 V or split supplies of ±1 V to ±18 V. The device features two independent channels with a typical response time of 1.3 µs and a maximum input offset voltage of 7 mV. It draws 1 mA of operating current and provides 16 mA output current per channel. Qualified under AEC-Q100 standards, it functions reliably within a temperature range of -40°C to +150°C.
Feature Summary
- Dual-channel differential voltage comparison capability
- Wide single or dual power supply operation range
- AEC-Q100 automotive qualification for reliability
- CMOS, DTL, ECL, MOS, and TTL compatible outputs
Applications
- Automotive electronic control systems
- Voltage monitoring circuits
- Threshold detection applications
- Power supply management protection
Procurement Notes
Verify the specific suffix HYDT against official STMicroelectronics documentation to confirm the SOIC-8 package and high-temperature grade specifications. Ensure the component meets AEC-Q100 requirements if used in automotive contexts. Cross-reference datasheet revisions to validate electrical parameters such as response time and supply current limits before integration into final designs.
Selection Notes
Select this component when dual comparators are required in a compact surface-mount form factor. It is suitable for designs needing wide supply voltage flexibility and high-temperature resilience up to 150°C. Consider the 1.3 µs response time and 7 mV offset voltage for precision requirements. Verify that the SOIC-8 footprint aligns with PCB layout constraints and thermal management needs.
Part Context
This part belongs to the LM2903H series of low-power dual voltage comparators. It shares functional similarities with other variants like LM2903WHYST but differs in package type and maximum operating temperature. The H-series designation typically indicates extended temperature capabilities compared to standard industrial grades.
Replacement Considerations
LM2903WHYST offers similar functionality in SOIC-8 but has a lower maximum operating temperature of +125°C. LM2903YQ3T provides comparable performance in a DFN-8 package with faster response times. Verify pin compatibility and thermal characteristics when substituting.
