My Inquiry
My Account
Analog Devices Inc. LTC6102CMS8#TRPBF
- Part No.:
- LTC6102CMS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC6102CMS8#TRPBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,514
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC6102CMS8#TRPBF from Analog Devices (acquired Linear Technology) is a precision zero-drift high-side current sense amplifier in 8-lead MSOP package. It delivers ±10 µV max input offset, ±50 nV/°C drift, 1 µs step response, and operates from 4 V to 60 V supply. It enables accurate shunt-based current monitoring in battery protection circuits where low-power standby and high common-mode rejection are critical.
For engineers reviewing the LTC6102CMS8#TRPBF datasheet, LTC6102CMS8#TRPBF pinout, LTC6102CMS8#TRPBF application, or LTC6102CMS8#TRPBF equivalent, key selection criteria include input offset stability over temperature, gain configuration flexibility via external RIN/ROUT, disable mode availability, output current drive capability (up to 1 mA), and compatibility with high common-mode voltage (>60 V) sensing topologies.
Technical Context
The LTC6102CMS8#TRPBF implements a precision transconductance architecture: it forces –INS to match +IN potential, then converts VSENSE across an external shunt into proportional output current IOUT = VSENSE/RIN. Its internal high-impedance sense loop and regulated VREG rail ensure stable operation under wide supply (4–60 V) and temperature (–40°C to 125°C) ranges.
Unlike conventional op-amp-based current amplifiers, it uses a dedicated force-sense (–INF/–INS) topology with Kelvin-compatible inputs, enabling accurate measurement even with milliohm-level shunts and high load currents. Its open-drain output supports ground-referred voltage translation via external ROUT, eliminating level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4 V to 60 V - supports direct connection to 12 V, 24 V, 48 V, and 60 V industrial/battery rails without external regulators. |
| Input Offset Voltage (max) | ±10 µV - enables use of ≤1 mΩ shunts while maintaining <1% error at 1 A load (1 mV sense signal). |
| Offset Drift (max) | ±50 nV/°C - ensures <0.5 µV total drift over –40°C to 125°C, critical for automotive and industrial thermal stability. |
| Step Response Time | 1 µs - allows real-time detection of overcurrent events for fast load disconnect or fault flag assertion. |
| PSRR | ≥130 dB - rejects supply noise even under noisy DC-DC converter outputs, preserving measurement integrity. |
| Output Current | Up to 1 mA - drives standard 10 kΩ ROUT for 10 V full-scale output or lower-value resistors for higher bandwidth. |
| Operating Temp Range | –40°C to 125°C - qualified for under-hood automotive, motor control, and industrial power systems. |
Pinout & Package
Package: 8-lead plastic MSOP (3 mm × 3 mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Pin 3 is V– (negative supply), not EN - this part is the standard LTC6102 (not -1 variant), confirmed by #TRPBF suffix and absence of disable functionality in spec table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (–INS) | Inverting Input (Sense) | Connected to low-side of shunt; internally forced to same potential as +IN for precise VSENSE acquisition. |
| 2 (–INF) | Force Input | Carries input current from RIN; must be tied to –INS near shunt to minimize parasitic resistance error. |
| 3 (V–) | Negative Supply | Ground reference for internal circuitry and output stage; connects directly to system GND or negative rail. |
| 4 (OUT) | Open-Drain Output | Sinks current proportional to VSENSE; requires external pull-up (e.g., to V– or separate rail) to generate voltage output. |
| 5 (V–) | Negative Supply (duplicate) | Second V– connection for improved grounding; must be connected to same node as Pin 3. |
| 6 (VREG) | Internal Regulated Supply | Provides stable bias for internal circuitry; requires 0.1 µF capacitor to V+; not for external loading. |
| 7 (V+) | Positive Supply | Primary power input; draws supply current; rated up to 60 V absolute max. |
| 8 (+IN) | Noninverting Input | Connected to high-side of shunt; includes 5 kΩ series resistor for transient protection and accidental disconnection tolerance. |
Key Features
| Feature | Design Value |
|---|---|
| Precision zero-drift architecture | Enables stable µV-level offset performance across temperature and time, eliminating calibration drift in long-life systems. |
| Kelvin-compatible force-sense inputs | Allows accurate measurement with low-value shunts (<1 mΩ) by rejecting PCB trace resistance errors in high-current paths. |
| Configurable gain via RIN/ROUT | Supports gain settings from 200× to 4990× using standard resistors - no fixed-gain limitations or trimming required. |
| High common-mode input range | Accepts +IN up to 20 V below –INS indefinitely, enabling robust operation in high-side sensing with >60 V bus voltages. |
| 130 dB PSRR | Maintains accuracy despite ripple on V+ rail from switching regulators, reducing need for additional filtering components. |
Applications
| Battery Protection Circuit | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Real-time monitoring of Li-ion pack discharge/charge current to trigger overcurrent cutoff before cell damage. 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: ±10 µV offset enables detection of 10 mA faults on 10 mΩ shunt (100 µV signal), supporting Class 0.1 current measurement accuracy. | Use Scenario: Continuous load current supervision in 48 V telecom rectifier modules to detect short-circuit or fan failure conditions. IC Role / Device Role / Timing Role: High-voltage current sensor interfacing between 48 V bus and isolated microcontroller via optocoupler or ADC driver. Use Value: 1 µs response time allows detection of sub-millisecond surge events, enabling faster fault response than legacy op-amp solutions. |
| Automotive Body Control Module | Motor Phase Current Sensing |
Use Scenario: Monitoring current draw of HVAC blower, seat heaters, or lighting loads for diagnostics and energy management. IC Role / Device Role / Timing Role: Precision current monitor feeding CAN bus gateway with calibrated current data for vehicle network reporting. Use Value: –40°C to 125°C rating and ±50 nV/°C drift ensure reliable operation across engine bay thermal cycles without recalibration. | Use Scenario: Low-side or high-side phase current feedback in BLDC motor controllers for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: High-bandwidth current transducer providing analog feedback to PWM controller or isolated sigma-delta ADC. Use Value: 200 kHz signal bandwidth supports accurate current reconstruction at 20 kHz PWM frequencies with minimal phase lag. |
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 |
|---|---|---|---|
| INA240A1QDGKRQ1 | Fixed gain (20 V/V), integrated 2.5 V reference, AEC-Q100 qualified; ±150 µV offset, 2.5 µs response. | Better suited for automotive production where qualification and simplified design are prioritized over ultra-low offset. | Select when AEC-Q100 compliance and reduced BOM count outweigh need for sub-µV offset and 1 µs speed. |
| MAX40056ATA+T | Zero-drift, ±5 µV offset, 1.5 µs response, 3.3 V/5 V supply only; no HV capability (max 65 V common-mode, but V+ limited to 5.5 V). | Ideal for low-voltage, high-precision applications (e.g., server VRM sensing) where 60 V supply operation is unnecessary. | Select when system operates at ≤5.5 V supply and demands lowest possible offset, accepting reduced HV headroom. |
Compared with INA240A1QDGKRQ1 and MAX40056ATA+T, the LTC6102CMS8#TRPBF uniquely combines 60 V supply operation, ±10 µV offset, and 1 µs response - making it optimal for industrial and automotive high-voltage, high-speed current monitoring where both precision and speed are non-negotiable.
Availability
LTC6102CMS8#TRPBF is available at Aetrix Electronics and suitable for battery protection, industrial power supply monitoring, and automotive body control applications requiring stable component supply across extended temperature and voltage ranges.
Supply support for LTC6102CMS8#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, formed through the acquisition of Linear Technology in 2017.
The LTC6102 product line was developed by Linear Technology specifically for precision high-side current sensing in harsh environments - targeting applications demanding ultra-low offset, wide supply range, and robust thermal stability without external calibration.
FAQ
What is the maximum supply voltage for the LTC6102CMS8#TRPBF?
The LTC6102CMS8#TRPBF supports a supply voltage range of 4 V to 60 V, with an absolute maximum rating of 70 V across V+ to V–. Exceeding 60 V may degrade performance or reliability, and operation above 70 V risks permanent damage per Absolute Maximum Ratings.
Does the LTC6102CMS8#TRPBF include a disable pin?
No, the LTC6102CMS8#TRPBF does not include a disable function. It is the standard LTC6102 variant (not LTC6102-1); Pin 3 is V–, not EN. Disable mode (1 µA standby current) is exclusive to LTC6102-1 versions such as LTC6102CMS8-1#TRPBF.
Can the LTC6102CMS8#TRPBF measure bidirectional current?
No, the LTC6102CMS8#TRPBF is unidirectional. Its architecture measures current flowing from V+ through the shunt to load (high-side sensing), producing a positive output current proportional to VSENSE. Bidirectional sensing requires dual-supply or specialized ICs like the LTC6104.
What is the purpose of the VREG pin on the LTC6102CMS8#TRPBF?
The VREG pin provides an internally regulated bias voltage for core amplifier circuitry. A minimum 0.1 µF capacitor must be placed between VREG and V+ to ensure stability. VREG is not intended to power external circuitry and must not be loaded.
How is gain configured on the LTC6102CMS8#TRPBF?
Gain is set externally using two resistors: RIN (from V+ to –INF) determines transconductance (IOUT = VSENSE/RIN), and ROUT (from OUT to V–) converts output current to voltage (VOUT = IOUT × ROUT). The effective gain is VOUT/VSENSE = ROUT/RIN, enabling flexible, precision ratio-based scaling.
LTC6102CMS8#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):
- 4 V
- Voltage - Supply Span (Max):
- 60 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
LTC6102CMS8#TRPBF FAQ
1.How can I place an order for LTC6102CMS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6102CMS8#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 LTC6102CMS8#TRPBF reliable?
The price and inventory of LTC6102CMS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6102CMS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6102CMS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6102CMS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6102CMS8#TRPBF?
LTC6102CMS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6102CMS8#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 LTC6102CMS8#TRPBF?
For technical support, including LTC6102CMS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6102CMS8#TRPBF requirements.
6.How does Aetrix verify that LTC6102CMS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6102CMS8#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 LTC6102CMS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6102CMS8#TRPBF?
All LTC6102CMS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6102CMS8#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 LTC6102CMS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC6102CMS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC6102CMS8#TRPBF Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
