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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- 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：-
- Qualification：-
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Overview
The LM2903HD is a dual low-power voltage comparator manufactured by STMicroelectronics in an SO-8 package. It operates from a single supply of +2V to +36V or split supplies of ±1V to ±18V. Key electrical parameters include a typical supply current of 0.4mA at +5V, input bias current of 25nA, and input offset voltage of 17mV typ. The device features open-collector outputs compatible with TTL, DTL, ECL, MOS, and CMOS logic families. Operating temperature range is -40°C to +150°C.
Feature Summary
- Designed for operation from a wide range of single or split power supply voltages
- Input common-mode voltage range includes ground even when operated from a single supply
- Low output saturation voltage allows efficient interfacing with various logic families
- Differential input voltage range equals the maximum supply voltage
Applications
- Signal processing circuits
- Sensor signal conditioning
- Motor drive control systems
- Consumer electronics
Procurement Notes
Verify the specific ordering suffix 'HD' corresponds to the SO-8 plastic micropackage variant. Confirm the manufacturer is STMicroelectronics as specified in the datasheet. Ensure the component meets the required operating temperature range of -40°C to +150°C for your application environment. Check for RoHS compliance details if required by your manufacturing standards.
Selection Notes
Select this component when low power consumption is critical, given the 0.4mA supply current independent of voltage. Choose the SO-8 package for surface-mount applications requiring a compact footprint. Consider the wide differential input voltage range if inputs may exceed supply rails. Verify that the open-collector output configuration fits your pull-up requirements.
Part Context
The LM2903H series consists of two independent low-power voltage comparators designed for single-supply operation over a wide voltage range. The 'HD' designation specifically identifies the Small Outline Package (SO) variant manufactured by STMicroelectronics. This family is characterized by its ability to operate with input common-mode voltages including ground, making it suitable for single-supply applications.
Replacement Considerations
LM2903HYDT: Dual Voltage Comparator, SOIC-8 Package, -40°C to +150°C Temperature Range.
