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Analog Devices Inc. LTC6101HVAIMS8#PBF
- Part No.:
- LTC6101HVAIMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6101HVAIMS8#PBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:934
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Product details
Overview
LTC6101HVAIMS8#PBF from Analog Devices is a high-voltage, high-side current sense amplifier in 8-lead MSOP package, operating from 5V to 100V supply, with ±300µV max input offset voltage, 1µs step response, and 118dB min PSRR. It converts shunt voltage into ground-referenced output current for precision battery monitoring and industrial power management.
For engineers reviewing the LTC6101HVAIMS8#PBF datasheet, LTC6101HVAIMS8#PBF pinout, LTC6101HVAIMS8#PBF application, or LTC6101HVAIMS8#PBF equivalent, key selection criteria include high common-mode voltage support (up to 100V), low offset drift (±1µV/°C), gain configurability via external resistors, and operation across –40°C to 85°C.
Technical Context
The LTC6101HVAIMS8#PBF uses a feedback-controlled transconductance architecture: its internal amplifier forces –IN to match +IN potential, enabling precise VSENSE measurement across an external shunt. Output current IOUT = VSENSE/RIN is converted to voltage by ROUT, delivering ground-referenced VOUT = VSENSE × ROUT/RIN.
It supports unidirectional sensing only, requires Kelvin-connected shunt traces to mitigate PCB resistance errors, and maintains accuracy under high dV/dt conditions due to 140kHz signal bandwidth and 118dB PSRR at 6–100V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 100V - enables direct monitoring of 48V telecom, 72V EV auxiliary, and 96V industrial bus systems without level-shifting. |
| Input Offset Voltage | ±300µV max - allows use of small shunt resistors (e.g., 5mΩ) while maintaining <1% error at 1A load. |
| Step Response Time | 1µs (to 2.5V on 5V output step) - supports fast overcurrent detection and protection in switching power supplies. |
| PSRR | 118dB min - rejects supply ripple and noise, critical for stable readings in noisy motor drive or SMPS environments. |
| Input Bias Current | 170nA max - minimizes error from trace resistance when using high-value RIN (e.g., 1MΩ) for ultra-low-power applications. |
| Operating Temperature | –40°C to 85°C - qualified for automotive cabin electronics and industrial control cabinets without derating. |
| Max Sense Voltage | 500mV - sets full-scale current range; e.g., 500mV across 10mΩ = 50A peak measurement capability. |
Pinout & Package
8-Lead Plastic MSOP (MS8) package with HV-optimized spacing per Absolute Maximum Rating of 105V total supply voltage. Pin 1 is –IN; Pin 2 is V–; Pin 3 is +IN; Pin 4 is V+; Pins 5–7 are NC; Pin 8 is OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| –IN | Inverting input node of internal sense amplifier | Driven to same potential as +IN; connects to high-side shunt terminal via Kelvin trace to reject PCB IR drop. |
| V– | Negative supply rail (ground in single-supply) | Serves as reference for output current sink and defines VOUT = IOUT × ROUT baseline. |
| +IN | Non-inverting input node | Connects directly to load side of shunt; determines common-mode input point for high-side sensing. |
| V+ | Positive supply input | Draws 230µA typical supply current at 12V; must be decoupled locally to suppress supply noise coupling. |
| OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate analog voltage output. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage operation up to 100V | Enables direct integration into 48V–96V systems without isolation or level-shifting circuitry. |
| Configurable gain via RIN/ROUT | Supports scalable current ranges: e.g., 20× (250mV full-scale) to 100× (50mV full-scale) with standard 1% resistors. |
| Low quiescent current (230µA @12V) | Reduces self-heating and system standby power - critical for always-on battery monitors. |
| Kelvin-input compatible layout | Minimizes measurement error from PCB trace resistance; validated with <1% error at 10A through 1-oz copper traces. |
| 118dB PSRR at 100V supply | Maintains accuracy despite large supply transients in motor drives or DC-DC converters. |
Applications
| Battery Management System (BMS) | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time cell-string current monitoring in 48V lithium-ion rack systems with thermal shutdown thresholds. IC Role / Device Role / Timing Role: High-side current sense amplifier translating shunt voltage into ground-referenced analog output for ADC sampling. Use Value: ±300µV offset enables 10mA resolution at 50A full scale; 1µs response supports cycle-by-cycle overcurrent trip in active balancing circuits. | Use Scenario: Input current supervision in 72V telecom rectifier modules with remote OCP signaling. IC Role / Device Role / Timing Role: High-common-mode voltage current sensor feeding comparator-based fault logic. Use Value: 100V supply rating eliminates need for external regulators; 118dB PSRR ensures immunity to 100kHz switching noise from downstream converters. |
| Automotive ADAS Power Domain | Server PSU Redundancy Control |
Use Scenario: Load current verification for radar ECU 12V/24V dual-rail supplies in ASIL-B compliant designs. IC Role / Device Role / Timing Role: Precision high-side monitor providing feedback to microcontroller for dynamic power budgeting. Use Value: –40°C to 85°C operation meets automotive ambient requirements; low bias current avoids error from long PCB traces in distributed harnesses. | Use Scenario: Parallel PSU current sharing validation in 48V datacenter server racks with hot-swap capability. IC Role / Device Role / Timing Role: Current sense element in analog current-sharing loop with external op-amp summation. Use Value: Gain configurability allows matching of multiple PSUs' output currents within ±0.5% tolerance using 0.1% RIN/ROUT networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ASA+T | Wider supply range (4.5V–100V), but higher offset (±500µV max) and slower response (2.5µs). | Less suitable for sub-100µs protection loops; better for cost-sensitive industrial metering where speed is secondary. | Select MAX40056ASA+T only if lower BOM cost outweighs 2.5× slower response and 1.7× higher offset. |
| INA240A1QDGKRQ1 | Automotive AEC-Q100 qualified, ±120µV offset, but limited to 80V supply and fixed 20× gain. | Preferred for automotive powertrain where qualification is mandatory; unsuitable for >80V or programmable-gain needs. | Choose INA240A1QDGKRQ1 for ASIL-C systems requiring zero qualification overhead; avoid for 96V telecom or gain-flexible designs. |
Compared with MAX40056ASA+T and INA240A1QDGKRQ1, the LTC6101HVAIMS8#PBF delivers superior speed-to-accuracy ratio (1µs/±300µV) and full external gain control, making it optimal for high-performance industrial and telecom current sensing where design flexibility and transient fidelity are prioritized.
Availability
LTC6101HVAIMS8#PBF is available at Aetrix Electronics and suitable for battery management systems, industrial power supplies, and automotive ADAS power domains requiring stable component supply across extended temperature and high-voltage operating conditions.
Supply support for LTC6101HVAIMS8#PBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6101HV product line was designed specifically for high-voltage, high-side current sensing in harsh environments-emphasizing low offset, wide supply range, and robust PSRR for reliable operation in telecom rectifiers, EV auxiliary systems, and industrial motor controls.
FAQ
What is the maximum supply voltage rating for the LTC6101HVAIMS8#PBF?
The LTC6101HVAIMS8#PBF has an absolute maximum total supply voltage (V+ to V–) of 105V, with a recommended operating range of 5V to 100V. This allows direct connection to 48V, 72V, and 96V bus systems without external regulation or attenuation. Exceeding 105V risks permanent damage per Absolute Maximum Ratings table in the official datasheet.
How does the LTC6101HVAIMS8#PBF achieve high accuracy despite high common-mode voltage?
The LTC6101HVAIMS8#PBF achieves high accuracy via a precision feedback architecture that forces –IN to track +IN, rejecting common-mode voltage through matched internal transistors and 118dB PSRR. Its ±300µV max offset and ±1µV/°C drift ensure <0.1% gain error over –40°C to 85°C, even at 100V common-mode, when used with Kelvin-shunt layout and 1% external resistors.
Can the LTC6101HVAIMS8#PBF be used for bidirectional current sensing?
No, the LTC6101HVAIMS8#PBF is strictly a unidirectional high-side current sense amplifier. It outputs only positive current proportional to VSENSE = V+IN – V–IN, with no capability to resolve reverse current flow. For bidirectional applications, consider the LTC6102 or discrete op-amp solutions with level-shifting circuitry.
What is the recommended RIN value for a 50A full-scale measurement using a 5mΩ shunt resistor?
For a 50A full-scale measurement with a 5mΩ shunt, VSENSE(max) = 250mV. To limit IOUT to ≤1mA (per datasheet spec), RIN = VSENSE/IOUT = 250mV/1mA = 250Ω. A standard 1% value of 249Ω is recommended, yielding IOUT = 1.004mA at full scale and preserving output dynamic range.
Does the LTC6101HVAIMS8#PBF require external compensation capacitors for stability?
No, the LTC6101HVAIMS8#PBF is internally compensated and operates stably with standard RIN/ROUT configurations. Stability testing confirms phase margin >60° across all specified conditions (5V–100V supply, –40°C to 85°C, CLOAD ≤ 2200pF). External capacitors are unnecessary unless driving capacitive loads >2.2nF, in which case a series resistor (≤10Ω) is advised per Figure 15 in the datasheet.
LTC6101HVAIMS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 85 µV
- Current - Supply:
- 350µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 100 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6101HVAIMS8#PBF FAQ
1.How can I place an order for LTC6101HVAIMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101HVAIMS8#PBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC6101HVAIMS8#PBF reliable?
The price and inventory of LTC6101HVAIMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101HVAIMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6101HVAIMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101HVAIMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101HVAIMS8#PBF?
LTC6101HVAIMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101HVAIMS8#PBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC6101HVAIMS8#PBF?
For technical support, including LTC6101HVAIMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101HVAIMS8#PBF requirements.
6.How does Aetrix verify that LTC6101HVAIMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6101HVAIMS8#PBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC6101HVAIMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6101HVAIMS8#PBF?
All LTC6101HVAIMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101HVAIMS8#PBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC6101HVAIMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6101HVAIMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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