1. Products
  2. Amplifiers
  3. Specialty Amplifiers
  4. Current Sense Amplifiers
  5. LT6100


Overview

Features and Benefits

  • Input Offset Voltage: 300µV (Max)
  • Sense Inputs Up to 48V
  • 0.5% Gain Accuracy
  • Pin Selectable Gain: 10, 12.5, 20, 25, 40, 50V/V
  • Separate Power Supply: 2.7V to 36V
  • Operating Current: 60µA
  • Sense Input Current (VCC Powered Down): 1nA
  • Reverse Battery Protected to –48V
  • Buffered Output
  • Noise Filtering Input
  • –40°C to 125°C Operating Temperature Range
  • Available in 8-Lead DFN and MSOP Packages

Product Details

The LT6100 is a complete micropower, precision, high side current sense amplifier. The LT6100 monitors unidirectional currents via the voltage across an external sense resistor. Fixed gains of 10, 12.5, 20, 25, 40, 50V/V are obtained by simply strapping or floating two gain select pins. Gain accuracy is better than 0.5% for all gains.

The LT6100 sense inputs have a voltage range that extends from 4.1V to 48V, and can withstand a differential voltage of the full supply. This makes it possible to monitor the voltage across a MOSFET switch or a fuse. The part can also withstand a reverse battery condition on the inputs.

Input offset is a low 300µV. CMRR and PSRR are in excess of 105dB, resulting in a wide dynamic range. A filter pin is provided to easily implement signal filtering with a single capacitor.

The LT6100 has a separate supply input, which operates from 2.7V to 36V and draws only 60µA. When VCC is powered down, the sense pins are biased off. This prevents loading of the monitored circuit, irrespective of the sense voltage. The LT6100 is available in an 8-lead DFN and MSOP package.

Applications

  • Battery Monitoring
  • Fuse Monitoring
  • Portable and Cellular Phones
  • Portable Test/Measurement Systems

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice

Models for the following parts are available in LTspice:

LT6100

Product Recommendations

LT6100 Companion Parts

Recommended Related Parts

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
LT6100CDD#PBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100CDD#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100CMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LT6100CMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LT6100HDD#PBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100HDD#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100HMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LT6100HMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
LT6100IDD#PBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100IDD#TRPBF Material Declaration Reliability Data 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP)
LT6100IMS8#PBF Material Declaration Reliability Data 8-Lead MSOP
LT6100IMS8#TRPBF Material Declaration Reliability Data 8-Lead MSOP
Wafer Fabrication Data R075 Reliability Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

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


Selecting the Sample button above 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.


Price Table Help

 

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.