Overview
Features and Benefits
- Supply Range:
- 5V to 100V, 105V Absolute Maximum (LTC6101HV)
- 4V to 60V, 70V Absolute Maximum (LTC6101)
- Low Offset Voltage: 300μV Max
- Fast Response: 1μs Response Time (0V to 2.5V on a 5V Output Step)
- Gain Configurable with 2 Resistors
- Low Input Bias Current: 170nA Max
- PSRR: 118dB Min
- Output Current: 1mA Max
- Low Supply Current: 250μA, VS = 12V
- Specifi ed Temperature Range: –40°C to 125°C
- Operating Temperature Range: –55°C to 125°C
- Low Profi le (1mm) SOT-23 (ThinSOT™) Package
Product Details
The LTC6101/LTC6101HV are versatile, high voltage, high side current sense amplifiers. Design flexibility is provided by the excellent device characteristics; 300µV Max offset and only 375µA (typical at 60V) of current consumption. The LTC6101 operates on supplies from 4V to 60V and LTC6101HV operates on supplies from 5V to 100V.
The LTC6101 monitors current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing for a small sense signal on a high common mode voltage to be translated into a ground referenced signal. Low DC offset allows the use of a small shunt resistor and large gain-setting resistors. As a result, power loss in the shunt is reduced.
The wide operating supply range and high accuracy make the LTC6101 ideal for a large array of applications from automotive to industrial and power management. A maximum input sense voltage of 500mV allows a wide range of currents to be monitored. The fast response makes the LTC6101 the perfect choice for load current warnings and shutoff protection control. With very low supply current, the LTC6101 is suitable for power sensitive applications.
The LTC6101 is available in 5-lead SOT-23 and 8-lead MSOP packages.
Applications
- Current Shunt Measurement
- Battery Monitoring
- Remote Sensing
- Power Management
Product Categories
Product Lifecycle
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 (1)
Documentation & Resources
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R503 Reliability Data3/26/2018PDF16 K
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DC1115A - Demo Manual9/24/2009PDF128K
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Precision High Side Current Sense Amplifiers7/13/2017PDF1M
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Current Sensing with PMBus Digital Power System Managers—Part 21/1/2022 Analog Dialogue
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Finally, High Voltage Current Sensing Made Easy5/1/2005 LT Journal
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 Simulations
Models for the following parts are available in LTspice:
LTC6101
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.
PCN-PDN Information
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Support & Discussions
LTC6101 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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Lead Times
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Sampling
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Evaluation Boards
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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.