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Product Detailed Parameters
- Description：DUAL COMPARATOR
- Series：*
- Mfr：Renesas Electronics Corporation
- Package：Bulk
- Type：-
- Number of Elements：-
- Output Type：-
- Voltage - Supply, Single/Dual (±)：-
- Voltage - Input Offset (Max)：-
- Current - Input Bias (Max)：-
- Current - Output (Typ)：-
- Current - Quiescent (Max)：-
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-
- Package / Case：-
- Mounting Type：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The HA17903PSD is a dual comparator manufactured by Renesas Electronics Corporation, originally designed by Hitachi Semiconductor. It features a wide supply voltage range of 2V to 36V with single power source operation. The device exhibits very low supply current of 0.8mA, which remains stable regardless of supply voltage changes. Key electrical characteristics include an input bias current of 25nA, input offset current of 3nA, and input offset voltage of 2mV. The common mode input voltage range includes ground. Output saturation voltage is specified at 1mV with 5µA load and 70mV with 1mA load. The output logic is compatible with CMOS systems.
Feature Summary
- Wide supply voltage range supporting 2V to 36V operation with single power source
- Low supply current consumption of 0.8mA independent of supply voltage variations
- Input offset voltage specification of 2mV with small input bias current of 25nA
- Output voltage compatibility with CMOS logic systems
Applications
- Limit comparator circuits
- Simple analog/digital converter implementations
- Pulse, square wave, and time delay generators
- Wide range VCO applications
- MOS clock timer circuits
Procurement Notes
Verify the specific suffix PSD against official Renesas documentation to confirm package type and tape/reel specifications. Ensure the component meets RoHS compliance requirements for your target market. Confirm availability through authorized Renesas distributors or direct channels. Check for any updated datasheet revisions that may affect pinout or electrical parameters compared to legacy Hitachi versions.
Selection Notes
Select this component when a dual comparator with wide voltage tolerance and CMOS-compatible outputs is required. Consider the low input offset voltage for precision applications. Evaluate the 0.8mA supply current against system power constraints. Verify that the single-supply operation fits the design architecture. Compare performance metrics against alternative comparators if higher speed or lower offset is needed.
Part Context
The HA17903 series belongs to Renesas' portfolio of operational amplifiers and comparators, originating from Hitachi Semiconductor technology. This family is designed for automotive and control system applications requiring reliable performance across wide voltage ranges. The dual configuration provides two independent comparison functions in a single package, reducing board space and component count for signal conditioning tasks.
Replacement Considerations
Official substitute part numbers include HA17903AFP and HA17903APS. These variants maintain the same dual comparator functionality and electrical specifications. Verify pin compatibility and package dimensions before substitution. Cross-reference with other industry-standard dual comparators only if electrical parameters match exactly.
