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LT6105 Datasheet

LT6105 Datasheet

Precision, Rail-to-Rail Input Current Sense Amplifier
Part No.: LT6105
Page: 20 Pages
Size: 381 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2023-11-13 17:36:35
DataSheet: Download

LT6105 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT6105CDCB#PBF Tube   LCTF 1 6 0°C ~ 70°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105CDCB#TRPBF Reel 2500 LCTF 1 6 0°C ~ 70°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105CDCB#TRMPBF Reel 500 LCTF 1 6 0°C ~ 70°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105IDCB#PBF Tube   LCTF 1 6 -40°C ~ 85°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105IDCB#TRPBF Reel 2500 LCTF 1 6 -40°C ~ 85°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105IDCB#TRMPBF Reel 500 LCTF 1 6 -40°C ~ 85°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105HDCB#PBF Tube   LCTF 1 6 -40°C ~ 125°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105HDCB#TRPBF Reel 2500 LCTF 1 6 -40°C ~ 125°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105HDCB#TRMPBF Reel 500 LCTF 1 6 -40°C ~ 125°C 6-Lead (2mm × 3mm) Plastic DFN  
LT6105CMS8#PBF Tube 50 LTCTD 1 8 0°C ~ 70°C 8-Lead Plastic MS8  
LT6105CMS8#TRPBF Reel 2500 LTCTD 1 8 0°C ~ 70°C 8-Lead Plastic MS8  
LT6105CMS8#TRMPBF Reel 500 LTCTD 1 8 0°C ~ 70°C 8-Lead Plastic MS8  
LT6105IMS8#PBF Tube 50 LTCTD 1 8 -40°C ~ 85°C 8-Lead Plastic MS8  
LT6105IMS8#TRPBF Reel 2500 LTCTD 1 8 -40°C ~ 85°C 8-Lead Plastic MS8  
LT6105IMS8#TRMPBF Reel 500 LTCTD 1 8 -40°C ~ 85°C 8-Lead Plastic MS8  
LT6105HMS8#PBF Tube 50 LTCTD 1 8 -40°C ~ 125°C 8-Lead Plastic MS8  
LT6105HMS8#TRPBF Reel 2500 LTCTD 1 8 -40°C ~ 125°C 8-Lead Plastic MS8  
LT6105HMS8#TRMPBF Reel 500 LTCTD 1 8 -40°C ~ 125°C 8-Lead Plastic MS8  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT6105 Datasheet(PDF)

LT6105 Datasheet(Picture)

LT6105 Features

  • Very Wide, Over-the-Top®, Input Common Mode Range
      - Extends 44V Above V  (Independent of V +)
      - Extends –0.3V Below V 
  • Wide Power Supply Range: 2.85V to 36V
  • Input Offset Voltage: 300µV Maximum
  • Gain Accuracy: 1% Max
  • Gain Configurable with External Resistors
  • Operating Current: 150µA
  • Slew Rate: 2V/µs
  • Sense Input Current When Powered Down: 1nA
  • Full-Scale Output Current: 1mA Minimum
  • Operating Temperature Range –40°C to 125°C
  • Available in 2mm × 3mm DFN and 8-Lead MSOP Packages

LT6105 Applications

  • High Side or Low Side Current Sensing
  • Current Monitoring on Positive or Negative Supply Voltages
  • Battery Monitoring
  • Fuse/MOSFET Monitoring
  • Automotive
  • Power Management
  • Portable Test/Measurement Systems

LT6105 Description

The LT6105 is a micropower, precision current sense amplifier with a very wide input common mode range. The LT6105 monitors unidirectional current via the voltage across an external sense resistor. The input common mode range extends from –0.3V to 44V, with respect to the negative supply voltage (V ). This allows the LT6105 to operate as a high side current sense monitor or a low side current sense monitor. It also allows the LT6105 to monitor current on a negative supply voltage, as well as continuously monitor a battery from full charge to depletion. The inputs of LT6105 can withstand differential voltages up to ±44V, which makes it ideal for monitoring a fuse or MOSFET switch.

Gain is configured with external resistors from 1V/V to 100V/V. The input common mode rejection and power supply rejection are in excess of 100dB and the input offset voltage is less than 300µV. A minimum slew rate of 2V/µs ensures fast response to unexpected current changes.

The LT6105 can operate from an independent power supply of 2.85V to 36V and draws only 150µA. When V + is powered down, the sense pins are biased off. This prevents loading of the monitored circuit, irrespective of the sense voltage. The LT6105 is available in a 6-lead DFN and 8-lead MSOP package.

LT6105 Datasheet Related Parts

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