LTC6101 - High Voltage, High-Side Current Sense Amplifier in SOT-23
Datasheet 
VideosDocumentationDatasheet
Application Note
Design Note
Reliability Data
Product Selector Card
LT Journal
Press Release
cad_symbol
ltspice
Features
- 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
Typical Application
Description
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.
MS-8,SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC6101ACMS8#PBF | MSOP | 8 | C | $2.00 | $1.40 |
| LTC6101ACMS8#TRPBF | MSOP | 8 | C | $1.46 | |
| LTC6101ACS5#PBF | SOT | 5 | C | $2.00 | |
| LTC6101ACS5#TRMPBF | SOT | 5 | C | $2.00 | $1.45 |
| LTC6101ACS5#TRPBF | SOT | 5 | C | $2.00 | $1.40 |
| LTC6101AHMS8#PBF | MSOP | 8 | H | $2.71 | $1.89 |
| LTC6101AHMS8#TRPBF | MSOP | 8 | H | $1.95 | |
| LTC6101AHS5#PBF | DFN | 8 | H | $2.71 | |
| LTC6101AHS5#TRMPBF | SOT | 5 | H | $2.71 | $1.94 |
| LTC6101AHS5#TRPBF | SOT | 5 | H | $2.71 | $1.89 |
| LTC6101AIMS8#PBF | MSOP | 8 | I | $2.41 | $1.68 |
| LTC6101AIMS8#TRPBF | MSOP | 8 | I | $1.74 | |
| LTC6101AIS5#PBF | SOT | 5 | I | $2.41 | |
| LTC6101AIS5#TRMPBF | SOT | 5 | I | $2.41 | $1.73 |
| LTC6101AIS5#TRPBF | SOT | 5 | I | $2.41 | $1.68 |
| LTC6101BCS5#PBF | SOT | 5 | C | $1.93 | |
| LTC6101BCS5#TRMPBF | SOT | 5 | C | $1.93 | $1.32 |
| LTC6101BCS5#TRPBF | SOT | 5 | C | $1.93 | $1.30 |
| LTC6101BHS5#PBF | SOT | 5 | H | $2.58 | |
| LTC6101BHS5#TRMPBF | SOT | 5 | H | $2.58 | $1.83 |
| LTC6101BHS5#TRPBF | SOT | 5 | H | $2.58 | $1.81 |
| LTC6101BIS5#PBF | SOT | 5 | I | $2.30 | |
| LTC6101BIS5#TRMPBF | SOT | 5 | I | $2.30 | $1.64 |
| LTC6101BIS5#TRPBF | SOT | 5 | I | $2.30 | $1.62 |
| LTC6101CCS5#PBF | SOT | 5 | C | $1.56 | |
| LTC6101CCS5#TRMPBF | SOT | 5 | C | $1.56 | $1.06 |
| LTC6101CCS5#TRPBF | SOT | 5 | C | $1.56 | $1.04 |
| LTC6101CHS5#PBF | SOT | 5 | H | $2.07 | |
| LTC6101CHS5#TRMPBF | SOT | 5 | H | $2.07 | $1.48 |
| LTC6101CHS5#TRPBF | SOT | 5 | H | $2.07 | $1.46 |
| LTC6101CIS5#PBF | SOT | 5 | I | $1.85 | |
| LTC6101CIS5#TRMPBF | SOT | 5 | I | $1.85 | $1.33 |
| LTC6101CIS5#TRPBF | SOT | 5 | I | $1.85 | $1.31 |
| LTC6101HVACMS8#PBF | MSOP | 8 | C | $2.51 | $1.75 |
| LTC6101HVACMS8#TRPBF | MSOP | 8 | C | $1.81 | |
| LTC6101HVACS5#PBF | SOT | 5 | C | $2.51 | |
| LTC6101HVACS5#TRMPBF | SOT | 5 | C | $2.51 | $1.80 |
| LTC6101HVACS5#TRPBF | SOT | 5 | C | $2.51 | $1.75 |
| LTC6101HVAHMS8#PBF | MSOP | 8 | H | $3.38 | $2.37 |
| LTC6101HVAHMS8#TRPBF | MSOP | 8 | H | $2.43 | |
| LTC6101HVAHS5#PBF | SOT | 5 | H | $3.38 | |
| LTC6101HVAHS5#TRMPBF | SOT | 5 | H | $3.38 | $2.42 |
| LTC6101HVAHS5#TRPBF | SOT | 5 | H | $3.38 | $2.37 |
| LTC6101HVAIMS8#PBF | MSOP | 8 | I | $3.01 | $2.10 |
| LTC6101HVAIMS8#TRPBF | MSOP | 8 | I | $2.16 | |
| LTC6101HVAIS5#PBF | SOT | 5 | I | $3.01 | |
| LTC6101HVAIS5#TRMPBF | SOT | 5 | I | $3.01 | $2.15 |
| LTC6101HVAIS5#TRPBF | SOT | 5 | I | $3.01 | $2.10 |
| LTC6101HVBCS5#PBF | SOT | 5 | C | $2.39 | |
| LTC6101HVBCS5#TRMPBF | SOT | 5 | C | $2.39 | $1.64 |
| LTC6101HVBCS5#TRPBF | SOT | 5 | C | $2.39 | $1.62 |
| LTC6101HVBHS5#PBF | SOT | 5 | H | $3.20 | |
| LTC6101HVBHS5#TRMPBF | SOT | 5 | H | $3.20 | $2.27 |
| LTC6101HVBHS5#TRPBF | SOT | 5 | H | $3.20 | $2.25 |
| LTC6101HVBIS5#PBF | SOT | 5 | I | $2.85 | |
| LTC6101HVBIS5#TRMPBF | SOT | 5 | I | $2.85 | $2.03 |
| LTC6101HVBIS5#TRPBF | SOT | 5 | I | $2.85 | $2.01 |
| LTC6101HVCCS5#PBF | SOT | 5 | C | $1.93 | |
| LTC6101HVCCS5#TRMPBF | SOT | 5 | C | $1.93 | $1.32 |
| LTC6101HVCCS5#TRPBF | SOT | 5 | C | $1.93 | $1.30 |
| LTC6101HVCHS5#PBF | SOT | 5 | H | $2.58 | |
| LTC6101HVCHS5#TRMPBF | SOT | 5 | H | $2.58 | $1.83 |
| LTC6101HVCHS5#TRPBF | SOT | 5 | H | $2.58 | $1.81 |
| LTC6101HVCIS5#PBF | SOT | 5 | I | $2.30 | |
| LTC6101HVCIS5#TRMPBF | SOT | 5 | I | $2.30 | $1.64 |
| LTC6101HVCIS5#TRPBF | SOT | 5 | I | $2.30 | $1.62 |
| LTC6101CCS5 | SOT | 5 | C | $3.12 | |
| LTC6101CCS5#TR | SOT | 5 | C | $3.12 | $2.08 |
| LTC6101CIS5 | SOT | 5 | I | $3.70 | |
| LTC6101CIS5#TR | SOT | 5 | I | $3.70 | $2.62 |
| LTC6101CHS5 | SOT | 5 | H | $4.14 | |
| LTC6101CHS5#TR | SOT | 5 | H | $4.14 | $2.92 |
| LTC6101BCS5 | SOT | 5 | C | $3.86 | |
| LTC6101BCS5#TR | SOT | 5 | C | $3.86 | $2.60 |
| LTC6101BIS5 | SOT | 5 | I | $4.60 | |
| LTC6101BIS5#TR | SOT | 5 | I | $4.60 | $3.24 |
| LTC6101BHS5 | SOT | 5 | H | $5.16 | |
| LTC6101BHS5#TR | SOT | 5 | H | $5.16 | $3.62 |
| LTC6101ACMS8 | MSOP | 8 | C | $4.00 | $2.80 |
| LTC6101ACMS8#TR | MSOP | 8 | C | $2.92 | |
| LTC6101AIMS8 | MSOP | 8 | I | $4.82 | $3.36 |
| LTC6101AIMS8#TR | MSOP | 8 | I | $3.48 | |
| LTC6101AHMS8 | MSOP | 8 | H | $5.42 | $3.78 |
| LTC6101AHMS8#TR | MSOP | 8 | H | $3.90 | |
| LTC6101HVCCS5 | SOT | 5 | C | $3.86 | |
| LTC6101HVCCS5#TR | SOT | 5 | C | $3.86 | $2.60 |
| LTC6101HVCIS5 | SOT | 5 | I | $4.60 | |
| LTC6101HVCIS5#TR | SOT | 5 | I | $4.60 | $3.24 |
| LTC6101HVCHS5 | SOT | 5 | H | $5.16 | |
| LTC6101HVCHS5#TR | SOT | 5 | H | $5.16 | $3.62 |
| LTC6101HVBCS5 | SOT | 5 | C | $4.78 | |
| LTC6101HVBCS5#TR | SOT | 5 | C | $4.78 | $3.24 |
| LTC6101HVBIS5 | SOT | 5 | I | $5.70 | |
| LTC6101HVBIS5#TR | SOT | 5 | I | $5.70 | $4.02 |
| LTC6101HVBHS5 | SOT | 5 | H | $6.40 | |
| LTC6101HVBHS5#TR | SOT | 5 | H | $6.40 | $4.50 |
| LTC6101HVAIMS8 | MSOP | 8 | I | $6.02 | $4.20 |
| LTC6101HVAIMS8#TR | MSOP | 8 | I | $4.32 | |
| LTC6101HVAHMS8 | MSOP | 8 | H | $6.76 | $4.74 |
| LTC6101HVAHMS8#TR | MSOP | 8 | H | $4.86 | |
| LTC6101BCS5#TRM | SOT | 5 | C | $3.86 | $2.64 |
| LTC6101BHS5#TRM | SOT | 5 | H | $5.16 | $3.66 |
| LTC6101BIS5#TRM | SOT | 5 | I | $4.60 | $3.28 |
| LTC6101CCS5#TRM | SOT | 5 | C | $3.12 | $2.12 |
| LTC6101CHS5#TRM | SOT | 5 | H | $4.14 | $2.96 |
| LTC6101CIS5#TRM | SOT | 5 | I | $3.70 | $2.66 |
| LTC6101HVBCS5#TRM | SOT | 5 | C | $4.78 | $3.28 |
| LTC6101HVBHS5#TRM | SOT | 5 | H | $6.40 | $4.54 |
| LTC6101HVBIS5#TRM | SOT | 5 | I | $5.70 | $4.06 |
| LTC6101HVCCS5#TRM | SOT | 5 | C | $3.86 | $2.64 |
| LTC6101HVCHS5#TRM | SOT | 5 | H | $5.16 | $3.66 |
| LTC6101HVCIS5#TRM | SOT | 5 | I | $4.60 | $3.28 |
| LTC6101ACS5#TR | SOT | 5 | C | $4.00 | $2.80 |
| LTC6101ACS5 | SOT | 5 | C | $4.00 | |
| LTC6101ACS5#TRM | SOT | 5 | C | $4.00 | $2.90 |
| LTC6101AIS5#TR | SOT | 5 | I | $4.82 | $3.36 |
| LTC6101AIS5 | SOT | 5 | I | $4.82 | |
| LTC6101AIS5#TRM | SOT | 5 | I | $4.82 | $3.46 |
| LTC6101AHS5#TR | SOT | 5 | H | $5.42 | $3.78 |
| LTC6101AHS5 | SOT | 5 | H | $5.42 | |
| LTC6101AHS5#TRM | SOT | 5 | H | $5.42 | $3.88 |
| LTC6101HVAHS5#TRM | SOT | 5 | H | $6.76 | $4.84 |
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 |
|---|---|---|---|
| DC1115A | LTC6101 Current Sense Demo Board | $50.00 |