Overview
Features and Benefits
- Current Sense Amplifier
- Fast Step Response: 500ns
- Low Offset Voltage: 200μV Maximum
- Low Gain Error: 0.2% Maximum
- Internal 400mV Precision Reference
- Internal Comparator
- Power-On Reset Capability
- Fast Response Time: 500ns
- Total Threshold Error: ±1.25% Maximum
- Wide Supply Range: 2.7V to 60V
- Supply Current: 450μA
- Specified for –40°C to 125°C Temperature Range
- Available in 8-Lead MSOP and 8-Lead (2mm × 3mm) DFN Packages
Product Details
The LT6118 is a complete high side current sense device that incorporates a precision current sense amplifier, an integrated voltage reference and a latching comparator. The comparator latch functionality can be enabled or disabled and the comparator can be configured to reset upon power-on. The input and the open-drain output of the comparator are independent from the current sense amplifier. The comparator trip point and amplifier gain are configured with external resistors.
The overall propagation delay of the LT6118 is typically only 1.4μs, allowing for quick reaction to overcurrent conditions. The 1MHz bandwidth allows the LT6118 to be used for error detection in critical applications such as motor control. The high threshold accuracy of the comparator, combined with the ability to latch the comparator, ensures the LT6118 can capture high speed events.
The LT6118 is fully specified for operation from –40°C to 125°C, making it suitable for industrial and automotive applications. The LT6118 is available in the small 8-lead MSOP and 8-lead DFN packages.
Applications
- Overcurrent and Fault Detection
- Current Shunt Measurement
- Battery Monitoring
- Motor Control
- Automotive Monitoring and Control
- Industrial Control
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
-
R515 Reliability Data3/26/2018
-
DC2193A - Demo Manual12/8/2014
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Models for the following parts are available in LTspice:
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
LT6118HDCB#TRMPBF | Material Declaration | Reliability Data | 8-Lead DFN (2mm x 3mm w/ EP) | |
LT6118HDCB#TRPBF | Material Declaration | Reliability Data | 8-Lead DFN (2mm x 3mm w/ EP) | |
LT6118HMS8#PBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
LT6118HMS8#TRPBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
LT6118IDCB#TRMPBF | Material Declaration | Reliability Data | 8-Lead DFN (2mm x 3mm w/ EP) | |
LT6118IDCB#TRPBF | Material Declaration | Reliability Data | 8-Lead DFN (2mm x 3mm w/ EP) | |
LT6118IMS8#PBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
LT6118IMS8#TRPBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
Wafer Fabrication Data | R515 Reliability Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.