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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 16SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：General Purpose
- Number of Elements：2
- Output Type：Pull Up
- Voltage - Supply, Single/Dual (±)：1.1V ~ 40V, ±0.55V ~ 20V
- Voltage - Input Offset (Max)：1mV @ ±20V
- Current - Input Bias (Max)：0.075µA @ ±20V
- Current - Output (Typ)：70mA @ 4.5V
- Current - Quiescent (Max)：250µA
- CMRR, PSRR (Typ)：115dB CMRR, 110dB PSRR
- Propagation Delay (Max)：6µs
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：16-SOIC (0.295", 7.50mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：16-SO
- Grade：-
- Qualification：-
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Overview
The LT1018CSW#PBF is a micropower dual comparator in a 16-lead plastic SO package. It operates from a single 1.1V cell up to 40V with a typical supply current of 110µA. The device features a class B pull-up current source, eliminating external resistors. Key electrical specifications include a maximum offset voltage of 1mV and a maximum bias current of 15nA. Typical output drive capability is 70mA, allowing it to drive loads connected to supplies more positive than the device.
Feature Summary
- Class B internal pull-up current source eliminates need for external resistive pull-ups
- Output stage drives loads connected to supplies more positive than V+
- On-chip trimming minimizes offset voltage for high precision
- Special circuitry prevents false output states during input overdrive
Applications
- Power supply monitors
- Relay driving circuits
- Oscillators
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and #TRPBF indicates tape and reel packaging if required. Confirm the SW package designation matches the 16-lead wide SOIC footprint requirements for your PCB layout. Ensure the C grade temperature range (0°C to 70°C) meets your operational environment constraints before finalizing procurement.
Selection Notes
Select the LT1018 variant over the LT1017 when higher speed and greater output drive current are required, accepting the trade-off of increased supply current. The LT1018 provides approximately 70mA typical sink current compared to lower values in other variants. This part is suitable for applications needing robust load driving capabilities while maintaining low power consumption relative to standard comparators.
Part Context
This component belongs to the LT1017/LT1018 family of general-purpose micropower comparators manufactured by Analog Devices. The LT1018 specifically targets applications requiring higher speed and drive strength than the ultra-low power LT1017. The family offers pin compatibility with older dual comparator designs like the 393 type, facilitating direct upgrades in existing systems.
Replacement Considerations
The datasheet notes pin compatibility with older dual comparators such as 393 type devices. No specific substitute part numbers are explicitly confirmed in the provided documentation.
