Overview
Features and Benefits
Current Sense
- Supply Range: 5V to 100V
- Low Offset Voltage: ±500µV (Maximum)
- 1µs Response Time
- Gain Configurable with 2 Resistors
- Low Input Bias Current: 170nA (Maximum)
- PSRR: 118dB (Minimum)
- Low Supply Current: 250µA
Voltage Sense
- Voltage Sense Range: 0V to 100V
- Precision 1MΩ Resistor Divider
- Low Total Gain Error: ±0.15% (Maximum)
- Supply Voltage Range: 2.7V to 5.5V
- Low Supply Current: 57µA
- Operating Temperature Range: –40°C to 125°C
- AEC-Q100 Qualified for Automotive Applications
Product Details
The LTC6115 is a versatile combination of a high voltage, high side current sense amplifier and a voltage sense amplifier. Design flexibility is provided by the excellent device characteristics: ±500µV maximum offset voltage for current sense and maximum ±0.15% voltage sense total gain error.
The current sensing part of the LTC6115 monitors current by sensing the voltage across an external sense resistor. The sensed voltage is converted to an output current which can then be translated to a voltage by an external resistor, ROUT. Due to its fast response, it is a perfect choice for load current warning and shut-off protection control.
The LTC6115 also includes an internal 1MΩ resistor divider and a precision voltage amplifier for accurate voltage monitoring. The resistor attenuation of 40 enables sensing of up to 100V on the VIN pin, making it suitable for precision high voltage monitoring in telecommunications, industrial and automotive applications. The full-scale output voltage can be configured by external gain resistors to maximize use of the amplifier’s rail-to-rail output. The LTC6115 is available in a 12-lead MSOP package.
Applications
- Current Shunt Measurement
- Battery Monitoring
- Power Management
- Automotive Sensing and Control
- Industrial Monitoring
Product Categories
Markets and Technologies
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
-
DC2839A Demo Manual4/11/2019
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.
Models for the following parts are available in LTspice:
LTC6115
Linduino
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Code Files
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 |
|---|---|---|---|---|
| LTC6115HMS#PBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| LTC6115HMS#TRPBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| LTC6115HMS#WPBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| LTC6115HMS#WTRPBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| LTC6115IMS#PBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| LTC6115IMS#TRPBF | Material Declaration | Reliability Data | 12-Lead MSOP | |
| Wafer Fabrication Data |
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Support & Discussions
Sample & Buy
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Lead Times
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Sampling
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Evaluation Boards
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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.