LTC6103 - Dual High Voltage, High Side Current Sense Amplifier
Features
- Two Independent Current Sense Amplifiers
- Wide Supply Range: 4V to 60V, 70V Absolute Maximum
- Low Offset Voltage: 450µV Maximum
- Fast Response: 1µs Response Time
- Gain Configurable with External Resistors
- Low Input Bias Current: 170nA Maximum
- PSRR: 110dB Minimum (6V to 60V)
- Output Current: 1mA Maximum
- Low Supply Current: 275µA per Amplifier, VS = 12V
- Specified for –40°C to 125°C Temperature Range
- Available in an 8-lead MSOP Package
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC6103 is a versatile, high voltage, high side, dual current sense amplifier. The two internal amplifiers are independent except that they share the same V– terminal. Design flexibility is provided by the excellent device characteristics: 450µV maximum offset, and only 275µA of current consumption (typical at 12V) for each amplifier. The LTC6103 operates on supplies from 4V to 60V.
The LTC6103 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 minimal.
The wide operating supply range and high accuracy make the LTC6103 ideal for an extensive variety of applications from automotive to industrial and power management. The fast response makes the LTC6103 the perfect choice for load current warnings and shutoff protection control. With very low supply current, the LTC6103 is suitable for power sensitive applications. The LTC6103 is available in an 8-lead MSOP package.
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 |
|---|---|---|---|---|---|
| LTC6103CMS8#PBF | MS-8 | MS8 | C | 05-08-1660 | Yes |
| LTC6103CMS8#TRPBF | MS-8 | MS8 | C | 05-08-1660 | Yes |
| LTC6103HMS8#PBF | MS-8 | MS8 | H | 05-08-1660 | Yes |
| LTC6103HMS8#TRPBF | MS-8 | MS8 | H | 05-08-1660 | Yes |
| LTC6103IMS8#PBF | MS-8 | MS8 | I | 05-08-1660 | Yes |
| LTC6103IMS8#TRPBF | MS-8 | MS8 | I | 05-08-1660 | Yes |
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 | |
|---|---|---|---|---|---|---|
| LTC6103CMS8#PBF | MS-8 | C | $2.38 | $1.66 | Yes | |
| LTC6103CMS8#TRPBF | MS-8 | C | $1.72 | Yes | ||
| LTC6103HMS8#PBF | MS-8 | H | $3.09 | $2.16 | Yes | |
| LTC6103HMS8#TRPBF | MS-8 | H | $3.15 | $2.22 | Yes | |
| LTC6103IMS8#PBF | MS-8 | I | $2.73 | $1.91 | Yes | |
| LTC6103IMS8#TRPBF | MS-8 | I | $1.97 | Yes | ||
| Buy Now • Request Samples | ||||||
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 |
|---|---|---|---|
| DC1116A | LTC6103 Current Sense Demo Board | $50.00 | |
| Buy Now | |||
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 | |
|---|---|---|---|---|---|---|
| LTC6103HMS8#PBF | MS-8 | H | $3.09 | $2.16 | Yes | |
| LTC6103HMS8#TRPBF | MS-8 | H | $3.15 | $2.22 | Yes | |
| LTC6103IMS8#PBF | MS-8 | I | $2.73 | $1.91 | Yes | |
| LTC6103IMS8#TRPBF | MS-8 | I | $1.97 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- Current Shunt Measurement
- Battery Monitoring
- Remote Sensing
- Power Management
- High Voltage Level Translator
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Design Tools
LTspice
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Models for the following parts are available in LTspice:
LTC6103
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
