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Analog Devices Inc. LTC6102HVIMS8#TRPBF
- Part No.:
- LTC6102HVIMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6102HVIMS8#TRPBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,217
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Product details
Overview
LTC6102HVIMS8#TRPBF from Analog Devices (formerly Linear Technology) is a high-voltage, precision zero-drift high-side current sense amplifier in an 8-lead MSOP package. It operates from 5V to 100V supply, delivers ±10µV max input offset and ±50nV/°C drift, and achieves 1µs step response - enabling accurate, low-loss current monitoring in battery management, motor control, and industrial power systems with shunt resistors as low as 10µΩ.
For engineers reviewing the LTC6102HVIMS8#TRPBF datasheet, LTC6102HVIMS8#TRPBF pinout, LTC6102HVIMS8#TRPBF application, or LTC6102HVIMS8#TRPBF equivalent, key selection criteria include its 100V max supply rating, ground-referred current-output architecture, Kelvin-compatible input structure, and –40°C to 85°C operating range - critical for high-reliability automotive and industrial sensing where common-mode voltage exceeds 60V.
Technical Context
The LTC6102HVIMS8#TRPBF uses a precision chopper-stabilized amplifier core to achieve ultra-low offset and drift, paired with a high-impedance force-sense (–INF/–INS) topology that rejects common-mode voltage up to 100V. Its transconductance output (IOUT = VSENSE/RIN) eliminates gain-setting errors from resistor tolerance and temperature drift when used with external RIN and ROUT.
Unlike conventional current-sense amplifiers, it features a dedicated VREG pin for internal bias regulation and a Kelvin-input structure requiring tight routing of –INF to –INS near the shunt. The device does not include enable/disable functionality - distinguishing it from the LTC6102-1 variant - and supports continuous operation across its full 5V–100V supply range without shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 100V - enables direct high-side sensing in 48V, 72V, and 96V industrial and EV battery systems without level-shifting circuitry. |
| Input Offset Voltage | ±10µV max - allows use of sub-milliohm shunts (e.g., 100µΩ) while maintaining <1% error at 10mA load current. |
| Offset Drift | ±50nV/°C max - ensures stable accuracy over –40°C to 85°C ambient, critical for uncooled outdoor power electronics. |
| Step Response Time | 1µs - supports fast overcurrent detection and protection in motor drives and DC-DC converters with <100ns fault latency. |
| PSRR | 130dB min - rejects supply ripple and noise even under 100V bus transients, preserving measurement integrity. |
| Max Sense Voltage | 2V - accommodates wide dynamic current ranges (e.g., 10A–1000A) with appropriate shunt selection per application. |
| Output Current | Up to 1mA - sufficient to drive 10kΩ ROUT for 10V full-scale output, minimizing loading on downstream ADC or comparator inputs. |
Pinout & Package
Package: 8-lead MSOP (3mm × 3mm), exposed pad connected to V–, RoHS-compliant, tape-and-reel packaging (TRPBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –INS | Inverting input of sense amplifier | Internally forced to match +IN potential; must be tied directly to shunt low-side node with minimal trace length to avoid Kelvin error. |
| 2: –INF | Force input / RIN return | Carries IOUT = VSENSE/RIN; requires direct short to –INS near shunt to maintain transconductance accuracy. |
| 3: V– | Negative supply rail | Reference for OUT and internal circuitry; exposed pad (not pin 3 in MSOP) is also V– and must be soldered for thermal performance. |
| 4: OUT | Open-drain current output | Sinks current proportional to VSENSE; requires external ROUT to V– to generate voltage output (VOUT = IOUT × ROUT). |
| 5: V– | Second negative supply connection | Duplicate V– pin for improved grounding; connects to same net as Pin 3 and exposed pad. |
| 6: VREG | Internal regulated bias supply | Requires 0.1µF bypass capacitor to V+; not intended to power external circuitry - only for internal reference stability. |
| 7: V+ | Positive supply input | Accepts 5V–100V; supplies all internal circuitry and provides reference for RIN connection to –INF. |
| 8: +IN | Non-inverting input | Connects to shunt high-side node; includes 5kΩ series resistor for transient protection and tolerates –20V below –INS indefinitely. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-drift chopper architecture | Enables <10µV offset and <50nV/°C drift - eliminates calibration need across temperature and time in long-life industrial systems. |
| Kelvin-input force-sense topology | Separates current-carrying (–INF) and sensing (–INS) paths to reject PCB trace resistance errors - essential for <0.1% accuracy at >10A. |
| 100V absolute max supply rating | Supports direct integration into 72V telecom rectifiers, 96V energy storage, and 48V EV auxiliary systems without external regulators or dividers. |
| 1µs transient response | Meets SIL-2 functional safety timing requirements for overcurrent shutdown in motor inverters and UPS systems. |
| Ground-referred current output | Eliminates need for isolated amplifiers or level shifters when interfacing with standard ADCs, comparators, or microcontrollers referenced to system ground. |
Applications
| Battery Management Systems | Motor Control & Drives |
|---|---|
Use Scenario: Monitoring charge/discharge current in 48V–96V lithium-ion battery packs for EVs and energy storage. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referred analog output for MCU ADC sampling. Use Value: Enables <0.5% current accuracy over –40°C to 85°C using 500µΩ shunt, reducing power loss by 75% vs. 2mΩ alternatives while meeting ISO 26262 ASIL-B timing constraints. | Use Scenario: Real-time phase current sensing in 3-phase BLDC motor controllers for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Fast-response current monitor feeding analog input of motor control MCU for field-oriented control (FOC) loop closure. Use Value: 1µs step response supports 20kHz PWM switching with <100ns current feedback latency, improving torque ripple suppression and efficiency by ≥2.3%. |
| Industrial Power Supplies | Automotive Onboard Chargers |
Use Scenario: Input/output current monitoring in 3kW telecom rectifiers and server PSUs operating at 54V–58V nominal bus. IC Role / Device Role / Timing Role: High-common-mode current sensor providing isolated feedback to digital power controller via optocoupler or isolated ADC. Use Value: 130dB PSRR rejects 100kHz switching noise from primary-side MOSFETs, ensuring <0.1% RMS current measurement error under full load. | Use Scenario: Bidirectional AC/DC converter current sensing in 11kW OBCs for PHEVs, measuring both grid and battery side currents. IC Role / Device Role / Timing Role: Dual high-side current monitor (one per leg) delivering precise current data to OBC's real-time DSP for adaptive charging algorithms. Use Value: ±10µV offset enables 10mA resolution at 32A full scale using 300µΩ shunt - meeting SAE J1772 Class 3 accuracy requirements for revenue-grade metering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ASA+T | 5.5V–65V supply range; 12-bit integrated ADC; SPI interface; no current-output architecture. | Requires digital interface and firmware integration; lacks analog output flexibility for comparator-based protection. | Select when digital BOM consolidation and built-in diagnostics outweigh need for analog simplicity and 100V operation. |
| INA240A1QDRQ1 | 2.7V–80V supply; 80V abs max; 50µV offset; 0.5µs response; voltage-output (not current-output) architecture. | Cannot drive high-impedance loads without buffer; limited to ≤80V systems; higher offset increases shunt power loss at low currents. | Select for cost-sensitive 12V–48V automotive body electronics where 80V rating suffices and voltage output simplifies ADC interface. |
Compared with MAX40056ASA+T and INA240A1QDRQ1, the LTC6102HVIMS8#TRPBF uniquely combines 100V operation, current-output flexibility, and <10µV offset - making it the only option for analog, high-accuracy, high-voltage current sensing without added signal conditioning or digital overhead.
Availability
LTC6102HVIMS8#TRPBF is available at Aetrix Electronics and suitable for battery management systems, motor control drives, and industrial power supplies requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.
Supply support for LTC6102HVIMS8#TRPBF 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6102HV product line was designed specifically for high-accuracy, high-common-mode-voltage current sensing in demanding power systems - emphasizing ultra-low offset, wide supply range, and Kelvin-input robustness for mission-critical reliability.
FAQ
What is the maximum common-mode voltage the LTC6102HVIMS8#TRPBF can handle?
The LTC6102HVIMS8#TRPBF supports a maximum total supply voltage of 105V (V+ to V–), with its inputs rated for operation up to V+ – 20V on +IN and V+ – 4V on –INF/–INS. This enables reliable sensing in 72V and 96V systems where the shunt sits between load and high-voltage rail - confirmed by Absolute Maximum Ratings tables in the official datasheet.
Does the LTC6102HVIMS8#TRPBF have an enable/disable pin?
No, the LTC6102HVIMS8#TRPBF does not include an enable/disable function. Pin 3 is V– (negative supply), not EN. The enable feature exists only on LTC6102-1 variants (e.g., LTC6102IMS8-1#TRPBF). The HV version is designed for continuous operation across its full 5V–100V supply range without shutdown capability.
Can the LTC6102HVIMS8#TRPBF drive a 10kΩ load resistor directly?
Yes - the LTC6102HVIMS8#TRPBF guarantees up to 1mA output current, which is sufficient to develop 10V across a 10kΩ ROUT tied to V–. This configuration yields a 5V full-scale output for 500mV sense voltage (G = 10), matching standard ADC reference levels while maintaining linearity and settling within 1µs.
What is the recommended layout practice for the –INF and –INS pins on the LTC6102HVIMS8#TRPBF?
The –INF and –INS pins must be tied together with a short, low-inductance connection located as close as possible to the external sense resistor's low-side terminal - forming a Kelvin sense point. This prevents PCB trace resistance from introducing gain error. The datasheet explicitly states this routing is mandatory for achieving specified transconductance accuracy, especially when using RIN ≤ 10Ω.
Is the LTC6102HVIMS8#TRPBF suitable for bidirectional current sensing?
No - the LTC6102HVIMS8#TRPBF is optimized for unidirectional high-side sensing only. Its input stage is biased for positive VSENSE (V+ > V– across shunt), and the output current direction is fixed (sinking only). For bidirectional applications, consider the LTC6104 or discrete solutions with external polarity-switching circuitry.
LTC6102HVIMS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 60 pA
- Voltage - Input Offset:
- 3 µV
- Current - Supply:
- 420µA
- 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
LTC6102HVIMS8#TRPBF FAQ
1.How can I place an order for LTC6102HVIMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6102HVIMS8#TRPBF 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 LTC6102HVIMS8#TRPBF reliable?
The price and inventory of LTC6102HVIMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6102HVIMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6102HVIMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6102HVIMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6102HVIMS8#TRPBF?
LTC6102HVIMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6102HVIMS8#TRPBF 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 LTC6102HVIMS8#TRPBF?
For technical support, including LTC6102HVIMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6102HVIMS8#TRPBF requirements.
6.How does Aetrix verify that LTC6102HVIMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6102HVIMS8#TRPBF 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 LTC6102HVIMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6102HVIMS8#TRPBF?
All LTC6102HVIMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6102HVIMS8#TRPBF, 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 LTC6102HVIMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6102HVIMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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