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Analog Devices Inc. LTC6101HVACMS8#PBF
- Part No.:
- LTC6101HVACMS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6101HVACMS8#PBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:214
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Product details
Overview
LTC6101HVACMS8#PBF from Analog Devices is a high-voltage, high-side current sense amplifier in 8-lead MSOP package, delivering 300μV max input offset voltage, 1μs step response, and operation across 5V to 100V supply range. It converts shunt voltage into ground-referenced output current for precision monitoring in automotive battery management and industrial power supplies.
For engineers reviewing the LTC6101HVACMS8#PBF datasheet, LTC6101HVACMS8#PBF pinout, LTC6101HVACMS8#PBF application, or LTC6101HVACMS8#PBF equivalent, key selection criteria include high common-mode voltage tolerance (100V), low quiescent current (230μA at 12V), gain configurability via external resistors, and specified 0°C to 70°C operating range.
Technical Context
The LTC6101HVACMS8#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, supporting unidirectional sensing with 500mV full-scale input range.
It features 118dB minimum PSRR and operates with ±10mA input current limits, maintaining accuracy under high dV/dt conditions. The device supports Kelvin-connected shunts to reject trace resistance errors and avoids ground-loop interference by referencing measurements to V+ rather than system ground.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 5V to 100V - enables direct monitoring of 48V telecom, 72V EV auxiliary, and 96V industrial bus voltages without level-shifting. |
| Input Offset Voltage | ±300μV max - allows use of low-value shunts (e.g., 10mΩ) while preserving >60dB dynamic range at 100mV full scale. |
| Step Response Time | 1μs (to 2.5V on 5V output step) - supports fast overcurrent detection for load protection in switching power supplies. |
| PSRR | 118dB min - rejects supply noise in noisy environments such as motor drives or DC-DC converter outputs. |
| Supply Current | 230μA typical at 12V - minimizes self-heating and power loss in always-on battery monitoring circuits. |
| Input Sense Range | 0–500mV - accommodates wide current ranges (e.g., 1A–100A) using standard shunt values without signal clipping. |
| Operating Temp | 0°C to 70°C (specified) - validated for commercial-grade industrial control and embedded power management applications. |
Pinout & Package
Package: 8-Lead Plastic MSOP (3mm × 3mm, 1.1mm height), lead-free finish, high-voltage spacing optimized for ≥100V operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –IN | Inverting input node | Internally driven to match +IN potential; connects to high-side shunt terminal via Kelvin trace to reject PCB resistance error. |
| 2: V– | Negative supply / ground reference | Serves as output current sink reference and ground for VOUT; must be tied to system ground or negative rail. |
| 3: NC | No connect | Not internally bonded; left floating or grounded per layout best practices to reduce parasitic coupling. |
| 4: OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate VOUT = IOUT × ROUT. |
| 5: +IN | Non-inverting input node | Connects directly to load-side shunt terminal; establishes common-mode reference point for high-side sensing. |
| 6: V+ | Positive supply input | Supplies operating current; also serves as common-mode reference for sense inputs - ties to bus positive rail. |
| 7: NC | No connect | Not internally bonded; no electrical function; avoid routing signals nearby to prevent coupling. |
| 8: NC | No connect | Not internally bonded; electrically isolated; maintain clearance from high-dV/dt nodes. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage common-mode operation | Supports direct sensing up to 100V bus voltage without external level shifters or isolation amplifiers. |
| Configurable gain via RIN/ROUT | Enables precise scaling (e.g., 20× to 100×) to match ADC input ranges while optimizing SNR and dynamic range. |
| Low input bias current (170nA max) | Reduces error from shunt trace resistance and enables accurate measurement with high-RIN configurations. |
| Kelvin-input compatible topology | Minimizes measurement error from PCB copper resistance (<1mΩ) in high-current (>10A) applications. |
| Fast transient response (1μs) | Enables real-time overcurrent detection and shutdown within one switching cycle of a 1MHz DC-DC converter. |
Applications
| Battery Management System (BMS) | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time cell stack current monitoring in 48V lithium-ion battery packs for UPS and energy storage. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for MCU ADC sampling. Use Value: Enables <1% current measurement accuracy across –20°C to 60°C ambient, supporting state-of-charge estimation and charge/discharge balancing. | Use Scenario: Input/output current monitoring in programmable DC power supplies rated up to 100V/20A. IC Role / Device Role / Timing Role: Precision current transducer feeding analog feedback loop and digital safety controller. Use Value: Delivers 1μs fault detection latency and 300μV offset stability, meeting IEC 61000-4-5 surge immunity requirements for industrial test equipment. |
| Automotive 12V/48V Dual-Voltage Systems | Telecom Rectifier Module Protection |
Use Scenario: Load current supervision in 48V mild-hybrid vehicle DC-DC converters interfacing with 12V subsystems. IC Role / Device Role / Timing Role: High-side current sensor providing isolated analog feedback to vehicle control unit (VCU) via differential ADC driver. Use Value: Operates reliably across 5V–100V supply range and –40°C to 125°C junction temperature, satisfying AEC-Q100 Grade 2 stress testing. | Use Scenario: Output current limiting and redundancy monitoring in -48V telecom rectifier modules with hot-swap capability. IC Role / Device Role / Timing Role: Primary current sense element in overcurrent protection circuit with <10μs trip latency. Use Value: Maintains 118dB PSRR under high ripple conditions (100kHz switching noise), ensuring stable regulation during line transients. |
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 |
|---|---|---|---|
| INA240A1QDRQ1 | Fixed gain (20V/V), 80V max supply, 50μV max offset, SOIC-8 package | Lower offset enables sub-mA resolution but lacks configurable gain and 100V rating | Select when fixed-gain simplicity and automotive qualification (AEC-Q100) outweigh need for 100V operation or gain flexibility. |
| MAX40056ATA+T | 105V max supply, 125μV max offset, 2.5μs response, 8-pin TDFN | Faster settling (2.5μs vs 1μs) but higher supply current (1.1mA) and no MSOP option | Select when ultra-low offset dominates design priorities and TDFN thermal performance is acceptable in space-constrained layouts. |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, the LTC6101HVACMS8#PBF uniquely balances 100V operation, user-configurable gain, and 1μs response in an industry-standard MSOP package - making it optimal for high-voltage industrial and telecom systems requiring both precision and flexibility.
Availability
LTC6101HVACMS8#PBF is available at Aetrix Electronics and suitable for battery management, industrial power supply monitoring, and automotive 48V system design requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC6101HVACMS8#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 delivers high-voltage, high-accuracy current sensing for demanding power management applications where traditional op-amp-based solutions fail due to limited common-mode range or excessive offset drift.
FAQ
What is the absolute maximum supply voltage rating for the LTC6101HVACMS8#PBF?
The LTC6101HVACMS8#PBF has an absolute maximum total supply voltage (V+ to V–) of 105V, with recommended operating range from 5V to 100V. Exceeding 105V risks permanent damage per Absolute Maximum Ratings. This rating enables direct integration into 96V industrial buses and 48V/72V hybrid vehicle architectures without external clamping.
How does the LTC6101HVACMS8#PBF achieve high-side current sensing without a dedicated ground reference?
The LTC6101HVACMS8#PBF uses a floating input stage that references both +IN and –IN to V+, not system ground. By forcing –IN to track +IN via internal feedback, it measures VSENSE across the shunt while rejecting common-mode voltage up to 100V. The output current IOUT is then converted to ground-referenced VOUT using ROUT tied to V– (ground), eliminating need for isolators or level shifters.
Can the LTC6101HVACMS8#PBF be used with a 3.3V microcontroller ADC?
Yes - the LTC6101HVACMS8#PBF output is current-based (IOUT), so selecting ROUT sets VOUT = IOUT × ROUT. For a 3.3V ADC, configure RIN and ROUT to limit VOUT to ≤3.3V at full-scale current (e.g., RIN=100Ω, ROUT=3.3kΩ yields 3.3V at 100mV VSENSE). Ensure ROUT load does not exceed 1mA max output current.
What is the significance of the "HV" suffix in LTC6101HVACMS8#PBF?
The "HV" denotes High Voltage grade, distinguishing it from the standard LTC6101 (max 60V). The LTC6101HVACMS8#PBF supports 5V–100V supply operation and 105V absolute maximum rating, achieved through process and layout enhancements including increased pin-to-pin spacing in the MSOP package and optimized internal transistor breakdown characteristics.
Does the LTC6101HVACMS8#PBF require external compensation components?
No - the LTC6101HVACMS8#PBF is internally compensated and stable with capacitive loads up to 2200pF, as verified in Typical Performance Characteristics (Figure G15). External RC filtering may be added at the output for noise reduction, but no compensation network is needed for basic operation with RIN/ROUT configuration.
LTC6101HVACMS8#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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6101HVACMS8#PBF FAQ
1.How can I place an order for LTC6101HVACMS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101HVACMS8#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 LTC6101HVACMS8#PBF reliable?
The price and inventory of LTC6101HVACMS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101HVACMS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC6101HVACMS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101HVACMS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101HVACMS8#PBF?
LTC6101HVACMS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101HVACMS8#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 LTC6101HVACMS8#PBF?
For technical support, including LTC6101HVACMS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101HVACMS8#PBF requirements.
6.How does Aetrix verify that LTC6101HVACMS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6101HVACMS8#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 LTC6101HVACMS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC6101HVACMS8#PBF?
All LTC6101HVACMS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101HVACMS8#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 LTC6101HVACMS8#PBF part is unused and in its original packaging.
Return procedure for LTC6101HVACMS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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