LTC6102 - Precision Zero Drift Current Sense Amplifier

Features

  • 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
Designed for Automotive and Transportation Applications
AEC-Q100 data available for specific packages


Typical Application

LTC6102 Typical Application
LTC6102 Typical Application

Description

The LTC®6102/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.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC6102CDD-1#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102CDD-1#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102CDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102CDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102CMS8-1#PBF MS-8 MS8 C 05-08-1660 Yes
LTC6102CMS8-1#TRPBF MS-8 MS8 C 05-08-1660 Yes
LTC6102CMS8#PBF MS-8 MS8 C 05-08-1660 Yes
LTC6102CMS8#TRPBF MS-8 MS8 C 05-08-1660 Yes
LTC6102HDD-1#PBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HDD-1#TRPBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HDD#PBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HDD#TRPBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HMS8-1#PBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HMS8-1#TRPBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HMS8#PBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HMS8#TRPBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HVCDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102HVCDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LTC6102HVCMS8#PBF MS-8 MS8 C 05-08-1660 Yes
LTC6102HVCMS8#TRPBF MS-8 MS8 C 05-08-1660 Yes
LTC6102HVHDD#PBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HVHDD#TRPBF 3x3 DFN-8 DD H 05-08-1698 Yes
LTC6102HVHMS8#PBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HVHMS8#TRPBF MS-8 MS8 H 05-08-1660 Yes
LTC6102HVIDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102HVIDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102HVIMS8#PBF MS-8 MS8 I 05-08-1660 Yes
LTC6102HVIMS8#TRPBF MS-8 MS8 I 05-08-1660 Yes
LTC6102IDD-1#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102IDD-1#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102IDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102IDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LTC6102IMS8-1#PBF MS-8 MS8 I 05-08-1660 Yes
LTC6102IMS8-1#TRPBF MS-8 MS8 I 05-08-1660 Yes
LTC6102IMS8#PBF MS-8 MS8 I 05-08-1660 Yes
LTC6102IMS8#TRPBF MS-8 MS8 I 05-08-1660 Yes


LTC6102 Package Drawing
LTC6102 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6102CDD-1#PBF 3x3 DFN-8 C $2.54 $1.82 Yes
LTC6102CDD-1#TRPBF 3x3 DFN-8 C $2.60 $1.88 Yes
LTC6102CDD#PBF 3x3 DFN-8 C $2.44 $1.72 Yes
LTC6102CDD#TRPBF 3x3 DFN-8 C $1.78 Yes
LTC6102CMS8-1#PBF MS-8 C $2.54 $1.82 Yes
LTC6102CMS8-1#TRPBF MS-8 C $2.60 $1.88 Yes
LTC6102CMS8#PBF MS-8 C $2.44 $1.72 Yes
LTC6102CMS8#TRPBF MS-8 C $1.78 Yes
LTC6102HDD-1#PBF 3x3 DFN-8 H $3.30 $2.37 Yes
LTC6102HDD-1#TRPBF 3x3 DFN-8 H $3.36 $2.43 Yes
LTC6102HDD#PBF 3x3 DFN-8 H $3.24 $2.27 Yes
LTC6102HDD#TRPBF 3x3 DFN-8 H $2.33 Yes
LTC6102HMS8-1#PBF MS-8 H $3.30 $2.37 Yes
LTC6102HMS8-1#TRPBF MS-8 H $3.36 $2.43 Yes
LTC6102HMS8#PBF MS-8 H $3.24 $2.27 Yes
LTC6102HMS8#TRPBF MS-8 H $2.33 Yes
LTC6102HVCDD#PBF 3x3 DFN-8 C $2.93 $2.06 Yes
LTC6102HVCDD#TRPBF 3x3 DFN-8 C $2.12 Yes
LTC6102HVCMS8#PBF MS-8 C $2.93 $2.06 Yes
LTC6102HVCMS8#TRPBF MS-8 C $2.12 Yes
LTC6102HVHDD#PBF 3x3 DFN-8 H $3.89 $2.72 Yes
LTC6102HVHDD#TRPBF 3x3 DFN-8 H $2.78 Yes
LTC6102HVHMS8#PBF MS-8 H $3.89 $2.72 Yes
LTC6102HVHMS8#TRPBF MS-8 H $2.78 Yes
LTC6102HVIDD#PBF 3x3 DFN-8 I $3.41 $2.38 Yes
LTC6102HVIDD#TRPBF 3x3 DFN-8 I $2.44 Yes
LTC6102HVIMS8#PBF MS-8 I $3.41 $2.38 Yes
LTC6102HVIMS8#TRPBF MS-8 I $2.44 Yes
LTC6102IDD-1#PBF 3x3 DFN-8 I $2.90 $2.08 Yes
LTC6102IDD-1#TRPBF 3x3 DFN-8 I $2.96 $2.14 Yes
LTC6102IDD#PBF 3x3 DFN-8 I $2.83 $1.98 Yes
LTC6102IDD#TRPBF 3x3 DFN-8 I $2.04 Yes
LTC6102IMS8-1#PBF MS-8 I $2.90 $2.08 Yes
LTC6102IMS8-1#TRPBF MS-8 I $2.96 $2.14 Yes
LTC6102IMS8#PBF MS-8 I $2.83 $1.98 Yes
LTC6102IMS8#TRPBF MS-8 I $2.04 Yes
Buy NowRequest Samples
* The USA 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1113A LTC6102 Current Sense Demo Board $50.00
DC1536A LTC6102-1 Current Sense Demo Board with Enable Feature $50.00
DC907A-B LTC6102, LT6100, LT1787, LTC2054, and LTC2439-1 (Requires DC590B) | Demo Board $150.00
Buy Now

Companion Boards

Part Number Description Price Documentation
DC590B Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards $50.00
Buy Now
Click here to view our complete list of demo boards

Designed for Automotive and Transportation Applications

AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6102HDD-1#PBF 3x3 DFN-8 H $3.30 $2.37 Yes
LTC6102HDD-1#TRPBF 3x3 DFN-8 H $3.36 $2.43 Yes
LTC6102HDD#PBF 3x3 DFN-8 H $3.24 $2.27 Yes
LTC6102HDD#TRPBF 3x3 DFN-8 H $2.33 Yes
LTC6102HVHDD#PBF 3x3 DFN-8 H $3.89 $2.72 Yes
LTC6102HVHDD#TRPBF 3x3 DFN-8 H $2.78 Yes
LTC6102HVIDD#PBF 3x3 DFN-8 I $3.41 $2.38 Yes
LTC6102HVIDD#TRPBF 3x3 DFN-8 I $2.44 Yes
LTC6102IDD-1#PBF 3x3 DFN-8 I $2.90 $2.08 Yes
LTC6102IDD-1#TRPBF 3x3 DFN-8 I $2.96 $2.14 Yes
LTC6102IDD#PBF 3x3 DFN-8 I $2.83 $1.98 Yes
LTC6102IDD#TRPBF 3x3 DFN-8 I $2.04 Yes
Buy NowRequest Samples
* The USA 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 Linear Technology sales office or authorized distributor.

Applications

  • Current Shunt Measurement
  • Battery Monitoring
  • Remote Sensing
  • Load Protection
  • Motor Control
  • Automotive Controls

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Design Tools

LTspice

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Models for the following parts are available in LTspice:
LTC6102

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