LT1018 - Micropower Dual Comparator
Features
- Maximum Offset Voltage: 1mV
- Maximum Bias Current: 15nA
- Typical Output Drive: 70mA
- Operates from 1.1V to 40V
- Internal Pull-Up Current
- Output Can Drive Loads Above V+
- 30µA Supply Current (LT1017) 110µA Supply Current (LT1018)
- Available in 8-Lead PDIP, 8-Lead Plastic S0, and 16-Lead Plastic SO Packages
Typical Application
Description
The LT1017/LT1018 are general purpose micropower comparators. The LT1017 is optimized for lowest operating power while the LT1018 operates at higher power and higher speed. Both devices can operate from a single 1.1V cell up to 40V. The output stage includes a class “B” pull-up current source, eliminating the need for an external resistive pull-up and saving power. The output stage is also designed to allow driving loads connected to a supply more positive than the device, as can comparators with open-collector output stages.
Input specifications are also excellent. On-chip trimming minimizes offset voltage, while high gain and common mode rejection ratio keep other input referred errors low. Common mode voltage range includes ground. Special circuitry prevents false output states even if the input is overdriven.
The LT1017/LT1018 are pin compatible with older dual comparators such as 393 type devices.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT1018CN8#PBF | N-8 | N | C | 05-08-1510 (N8) | Yes |
| LT1018CS8#PBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1018CS8#TRPBF | SO-8 | S8 | C | 05-08-1610 (S8) | Yes |
| LT1018CSW#PBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LT1018CSW#TRPBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LT1018IS8#PBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
| LT1018IS8#TRPBF | SO-8 | S8 | I | 05-08-1610 (S8) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT1018CN8#PBF | N-8 | C | $2.25 | $1.90 | Yes | |
| LT1018CS8#PBF | SO-8 | C | $2.50 | $2.10 | Yes | |
| LT1018CS8#TRPBF | SO-8 | C | $2.16 | Yes | ||
| LT1018CSW#PBF | SW-16 | C | $2.75 | $2.30 | Yes | |
| LT1018CSW#TRPBF | SW-16 | C | $2.36 | Yes | ||
| LT1018IS8#PBF | SO-8 | I | $3.26 | $2.29 | Yes | |
| LT1018IS8#TRPBF | SO-8 | I | $2.35 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Applications
- Power Supply Monitors
- Relay Driving
- Oscillators
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Design Tools
LTspice
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Models for the following parts are available in LTspice:
LT1018
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
