LT6108IMS8-2#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT6108IMS8-2#PBF is a precision single-channel current sense amplifier with open-drain output, 125 dB CMRR, and 450 µV maximum input offset voltage in an 8-pin MSOP package. It uses a current-feedback architecture with 0.3 µA bias current for accurate high-side or low-side current measurement. Ideal for power management and battery monitoring systems requiring precision current sensing.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT6108IMS8-2#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2100(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 125 dB typical CMRR for exceptional common-mode noise rejection in high-voltage current sensing applications
- Open-drain output enables flexible logic level interfacing and wired-OR fault detection across multiple channels
- 450 µV maximum input offset voltage ensures high-accuracy current measurement with low shunt resistor values
Applications
The LT6108IMS8-2#PBF is designed for precision current sensing in power management, battery monitoring, and motor control systems where accurate measurement of high-side or low-side currents is required. Its 125 dB CMRR makes it suitable for industrial power supplies, telecom equipment, and data center PDU systems where significant common-mode voltages exist across the sense resistor. The open-drain output simplifies integration with microcontroller ADC inputs and fault-detection logic in overcurrent protection circuits.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | CURRENT-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.35 µA |
| Bias Current-Max (IIB) @25C | 0.3 µA |
| Common-mode Reject Ratio-Nom | 125dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 450 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | NO |
| Low-Offset | YES |
| Micropower | YES |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.95mA |
| Supply Voltage Limit-Max | 60V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 1000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the CMRR of the LT6108IMS8-2#PBF, and how does it benefit high-side current sensing?
The LT6108IMS8-2#PBF achieves a typical CMRR of 125 dB, rejecting common-mode voltages by a factor of over 560,000 to 1. This exceptional rejection allows accurate millivolt-level differential measurement across a shunt resistor even when the common-mode bus voltage fluctuates by tens of volts, as occurs in 48 V telecom or automotive battery monitoring applications.
What is the maximum input offset voltage of the LT6108IMS8-2#PBF, and how does it constrain minimum shunt resistor selection?
The LT6108IMS8-2#PBF has a maximum input offset voltage of 450 µV, which creates a measurement error equivalent to 450 µV divided by the shunt resistance. For a 10 mΩ shunt at full-scale 10 A current giving 100 mV sense voltage, the 450 µV offset represents a 0.45% error, acceptable for most power monitoring but significant for precision metering requiring sub-0.1% accuracy.
How does the open-drain output of the LT6108IMS8-2#PBF differ from a push-pull output in fault detection circuits?
An open-drain output allows multiple LT6108IMS8-2#PBF devices to share a single pull-up resistor on a common fault line, implementing a wired-OR function so any channel's overcurrent condition asserts the shared fault signal. A push-pull output cannot be wire-ORed without bus contention, requiring external logic gates to combine multiple channel alerts in multichannel systems with 4 or more sense amplifiers.
Does the 8-pin MSOP package of LT6108IMS8-2#PBF save meaningful board space compared to SOIC-8 in dense power monitor designs?
Yes, the MSOP-8 package occupies approximately 9 mm² compared to approximately 29 mm² for an SOIC-8, reducing footprint by about 70%. In a 4-channel current monitoring card with 4 sense amplifiers, switching from SOIC-8 to MSOP-8 frees roughly 80 mm² of PCB area, enough space for additional bypass capacitors, filter components, or routing clearance around the sense resistor network.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 19+ | $2.7800 | $52.82 |
| 250+ | $2.5140 | $628.51 |
| 500+ | $2.3314 | $1165.70 |
| 1000+ | $2.2875 | $2287.50 |
| 10000+ | $2.2100 | $22100.00 |
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