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Product Detailed Parameters
- Description：DUAL COMPARATOR
- Series：-
- Mfr：Analog Devices Inc.
- 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 LT1017CH is a dual micropower comparator from Analog Devices, optimized for minimal operating power. It operates on a single supply ranging from 1.1V to 40V. The device features an internal Class B pull-up current source that eliminates the need for external resistive pull-ups. Input specifications include on-chip trimming to minimize offset voltage and high gain with common mode rejection ratio. The common mode voltage range includes ground, and special circuitry prevents false output states during input overdrive.
Feature Summary
- Optimized for lowest operating power consumption within the dual comparator family
- Internal Class B pull-up current source removes requirement for external resistive components
- On-chip trimming minimizes offset voltage while maintaining high gain and common mode rejection
- Special circuitry prevents false output states even when inputs are overdriven
Applications
- Power supply monitors
- Relay driving circuits
- Oscillators
Procurement Notes
Verify the specific temperature grade associated with the CH suffix against official documentation before procurement. Confirm package availability and lead times directly with authorized distributors or the manufacturer. Ensure the selected variant meets the required environmental operating conditions for the intended application design.
Selection Notes
Select the LT1017CH when low quiescent current is critical compared to the higher speed LT1018 variant. Verify that the 0°C to 70°C commercial temperature range aligns with system requirements. Consider the pin compatibility with legacy 393 type devices if replacing existing designs without layout changes.
Part Context
This component belongs to the LT1017/LT1018 series of general-purpose micropower comparators manufactured by Analog Devices. The LT1017 variant specifically targets applications requiring minimum power usage, distinguishing it from the faster LT1018 model. Both share similar electrical characteristics but differ in speed and current consumption profiles.
Replacement Considerations
The datasheet notes pin compatibility with older dual comparators such as 393 type devices.
