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Product Detailed Parameters
- Description：IC COMPARATOR 2 GEN PUR 8SO
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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)：0.015µA @ ±20V
- Current - Output (Typ)：65mA @ 4.5V
- Current - Quiescent (Max)：60µA
- CMRR, PSRR (Typ)：115dB CMRR, 110dB PSRR
- Propagation Delay (Max)：22µs
- Hysteresis：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LT1017CS8#TRPBF is a micropower dual comparator in an 8-lead SOIC package. It operates from a single supply of 1.1V to 40V or dual supplies of ±0.55V to ±20V. Key electrical specifications include a maximum offset voltage of 1mV, a maximum bias current of 15nA, and a typical output sink drive of 70mA. The device features an internal class B pull-up current source, eliminating the need for external resistive pull-ups. Supply current is typically 30µA at 5V. The operating temperature range is 0°C to +70°C.
Feature Summary
- Internal Class B pull-up current source eliminates external resistors
- Output stage drives loads connected to voltages above V+
- Input common mode range includes ground potential
- On-chip trimming minimizes input offset voltage
Applications
- Power supply monitors
- Relay driving circuits
- Oscillators
Procurement Notes
Verify the component matches the specific C grade temperature rating (0°C to +70°C) required for the application environment. Confirm the S8 plastic SOIC package dimensions align with the PCB footprint design. Ensure the #TRPBF suffix indicates lead-free tape and reel packaging consistent with assembly requirements.
Selection Notes
Select this part when low power consumption is critical alongside high-speed switching capabilities. The internal pull-up feature simplifies circuit design by reducing component count. Consider the 1mV maximum offset voltage for precision threshold detection applications where input errors must be minimized.
Part Context
This component belongs to the LT1017/LT1018 family of micropower comparators. The LT1017 variant is optimized for lowest operating power compared to the higher speed LT1018. Both devices are pin-compatible with older dual comparator types such as the 393 series, facilitating direct upgrades in existing designs.
Replacement Considerations
LT1017IS8#TRPBF
FAQ
Does the output stage require an external pull-up resistor?
No, the output stage includes an internal Class B pull-up current source that eliminates the need for an external resistive pull-up.
Can the output drive loads connected to a voltage higher than the positive supply?
Yes, the output stage is designed to allow driving loads connected to a supply more positive than the device's V+.
