Features and Benefits
- Supply Range:
- 4V to 60V, 70V Maximum (LTC6102)
- 5V to 100V, 105V Maximum (LTC6102HV)
- ±10μV Input Offset Maximum
- ±50nV/°C Input Offset Drift Maximum
- Fast Response: 1μs Step Response
- Gain Configurable with Two Resistors
- Low Input Bias Current: 3nA Maximum
- PSRR 130dB Minimum
- Output Currents up to 1mA
- Operating Temperature Range: –40°C to 125°C
- Disable Mode (LTC6102-1 Only): 1μA Maximum
- Available in 8-Lead MSOP and 3mm × 3mm DFN Packages
The LTC6102/LTC6102HV are versatile, high voltage, highside current sense amplifiers. Their high supply voltage rating allows their use in many high side applications, while the low drift and offset ensure accuracy across a wide range of operating conditions. The LTC6102-1 is a version of the LTC6102 that includes a low power disable mode to conserve system standby power.
The LTC6102/LTC6102HV monitor current via the voltage across an external sense resistor (shunt resistor). Internal circuitry converts input voltage to output current, allowing a small sense signal on a large common mode voltage to be translated to a ground-referred signal. Low DC offset allows the use of very low shunt resistor values and large gain-setting resistors. As a result, power loss in the shunt is reduced.
The wide operating supply and high accuracy make the LTC6102 ideal for a large array of applications, from automotive, to industrial and power management. A maximum input sense voltage of 2V allows a wide range of currents and voltages to be monitored. Fast response makes the LTC6102 the perfect choice for load current warnings and shutoff protection control.
All versions of the LTC6102 are available in 8-lead MSOP and 3mm × 3mm DFN packages.
- Current Shunt Measurement
- Battery Monitoring
- Remote Sensing
- Load Protection
- Motor Control
- Automotive Controls
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 (3)
DC1113A: Demo Board for the LTC6102 Precision Zero Drift Current Sense Amplifier
DC907A-B Demo Board for:
LTC2054 Single Micropower Zero-Drift Operational Amplifiers
LTC6102 Precision Zero Drift Current Sense Amplifier
LT1787 Precision, High Side Current Sense Amplifiers
LT6100 Precision, Gain Selectable High Side Current Sense Amplifier
LTC2439-1 8-/16-Channel 16-Bit No Latency Delta Sigma ADC
Documentation & Resources
R503 Reliability Data3/26/2018
60V Zero Drift7/23/2014
Driving Higher Levels of Flexibility, Productivity, and Sustainability in Smart Manufacturing10/27/2021 Thought Leadership
3mm × 3mm, 16-Bit ADC Brings Accurate, Precise High Side Current Sensing to Tight Spaces9/1/2009 LT Journal
Measure Microamps to Amps or Reduce Power Dissipation by 99%, You Decide!10/1/2007 LT Journal
Tools & Simulations
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Models for the following parts are available in LTspice:
LTC6102 Companion Parts
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Sample & Buy
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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.