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Analog Devices Inc. LTC6102HVIDD#PBF
- Part No.:
- LTC6102HVIDD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
LTC6102HVIDD#PBF.pdf
- Description:
- IC CURRENT SENSE 1 CIRCUIT 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:291
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Product details
Overview
LTC6102HVIDD#PBF from Analog Devices (formerly Linear Technology) is a high-voltage, precision zero-drift high-side current sense amplifier in an 8-lead 3mm × 3mm DFN package. It operates from 5V to 100V supply, delivers ±10µV max input offset, ±50nV/°C max drift, and 1µs step response - enabling accurate, low-loss current monitoring in automotive battery management and industrial power supplies with shunt resistors as low as 10µΩ.
For engineers reviewing the LTC6102HVIDD#PBF datasheet, LTC6102HVIDD#PBF pinout, LTC6102HVIDD#PBF application, or LTC6102HVIDD#PBF equivalent, key selection criteria include its HV-rated common-mode range (up to 100V), ground-referred output current architecture, disable mode absence (distinguishing it from LTC6102-1 variants), and –40°C to 85°C guaranteed operating temperature range.
Technical Context
The LTC6102HVIDD#PBF implements a precision current-to-current transducer architecture: its internal sense amplifier forces –INS to track +IN, enabling VSENSE across an external shunt to drive a proportional output current IOUT = VSENSE/RIN sourced from the –INF pin. This eliminates common-mode voltage constraints on the output stage.
It uses auto-zeroing circuitry to achieve ±10µV input offset and ±50nV/°C drift over –40°C to 85°C, with PSRR ≥130dB and 140kHz signal bandwidth at 200µA load - supporting fast overcurrent detection in motor drives and DC-DC converters without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 5V to 100V - supports direct connection to 48V, 72V, and 96V industrial bus rails without external regulators. |
| Input Offset Voltage | ±10µV max - enables use of 100µΩ shunts for 100A sensing with <0.01% offset error at full scale. |
| Offset Drift | ±50nV/°C max - ensures <0.5µV total drift over 85°C ambient range, critical for battery SOC accuracy. |
| Step Response | 1µs - allows detection of transient overloads before MOSFET thermal failure in e-fuse applications. |
| PSRR | ≥130dB - rejects supply ripple in noisy 48V telecom systems without additional decoupling. |
| Output Current | Up to 1mA - drives 10kΩ load resistor to generate 10V full-scale output with minimal gain error. |
| Operating Temp | –40°C to 85°C guaranteed - qualified for under-hood automotive and industrial control cabinet environments. |
Pinout & Package
Package: 8-lead 3mm × 3mm plastic DFN with exposed pad (Pin 9 = V–), RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: –INS | Inverting input of sense amplifier | Internally forced to same potential as +IN; must be tied directly to –INF near RIN to minimize Kelvin error. |
| 2: –INF | Force input / RIN return | Carries full IOUT current; connects externally to V+ via RIN to set transconductance gain. |
| 3: V– | Negative supply rail | Reference for all outputs and internal circuitry; exposed pad (Pin 9) must be soldered to PCB ground plane. |
| 4: OUT | Open-drain current output | Sources IOUT = VSENSE/RIN; requires external ROUT to V– to generate voltage output. |
| 5: V– | Negative supply rail (duplicate) | Second V– connection for improved thermal and current handling; electrically identical to Pin 3. |
| 6: VREG | Internal regulated supply | Provides stable bias for internal circuitry; requires 0.1µF capacitor to V+; not for external loading. |
| 7: V+ | Positive supply input | Accepts 5V–100V; draws supply current; must be decoupled locally per layout guidelines. |
| 8: +IN | Noninverting input | Connects to load side of shunt; includes 5kΩ series resistor for transient protection up to 20V below –INS. |
Key Features
| Feature | Design Value |
|---|---|
| Precision zero-drift architecture | Enables stable µV-level offset performance over temperature and time, eliminating calibration drift in long-life battery monitors. |
| High common-mode voltage range | Supports direct sensing on 100V bus rails without level-shifting circuits or isolated amplifiers. |
| Current-output interface | Delivers inherently noise-immune, ground-referred analog signal compatible with remote ADCs or optocouplers. |
| Kelvin-input structure | Minimizes PCB trace resistance errors by separating force (–INF) and sense (–INS) paths for high-current shunts. |
| Low input bias current | 3nA max avoids loading high-value RIN resistors, preserving gain accuracy in high-resolution configurations. |
Applications
| Battery Pack Monitoring | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Real-time cell-string current measurement in 48V–96V EV traction battery packs during charge/discharge cycles. IC Role / Device Role / Timing Role: High-side current transducer converting mV-level shunt voltage into proportional output current for isolation-coupled ADC sampling. Use Value: ±10µV offset enables 0.1% full-scale accuracy at 200A using 0.5mΩ shunt, reducing heat loss vs. competitive amplifiers requiring larger shunts. | Use Scenario: Overcurrent detection in 3-phase IGBT gate driver power stages for HVAC compressors and pumps. IC Role / Device Role / Timing Role: Fast-response current monitor feeding comparator input for sub-µs fault shutdown. Use Value: 1µs step response allows detection of short-circuit events before IGBT thermal runaway, improving system reliability. |
| Telecom 48V DC Power Distribution | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Branch current monitoring in distributed 48V server rack PDUs with multiple hot-swap controllers. IC Role / Device Role / Timing Role: High-PSRR (≥130dB) current sensor rejecting switching noise from adjacent DC-DC converters. Use Value: Maintains <0.005% measurement error despite 100mVpp supply ripple, eliminating need for additional filtering components. | Use Scenario: DC link current sensing in solar string inverters operating up to 1000V bus with 100A peak current. IC Role / Device Role / Timing Role: High-voltage tolerant current amplifier interfacing with isolated sigma-delta ADCs. Use Value: 100V absolute max supply rating allows direct connection to auxiliary 48V control rail, avoiding extra DC-DC converter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | Lower supply range (2.7V–80V); higher offset (±20µV); integrated 20V ESD protection on inputs | Automotive AEC-Q100 qualified; better suited for 12V/24V vehicle subsystems than 48V+ industrial systems | Select if AEC-Q100 compliance and lower-cost SOIC-8 packaging are required, and 80V max supply suffices. |
| MAX40056ATA+T | Higher bandwidth (1MHz); lower drift (±25nV/°C); fixed-gain (50V/V) voltage-output architecture | Optimized for ultra-fast overcurrent trip in GaN-based power supplies; lacks programmable transconductance | Select when nanosecond-level response is mandatory and fixed gain simplifies layout, accepting voltage-output interface trade-offs. |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, the LTC6102HVIDD#PBF provides superior high-voltage operation (100V), lowest offset (±10µV), and flexible current-output gain setting - making it optimal for precision, wide-range industrial current monitoring where programmability and 100V tolerance are essential.
Availability
LTC6102HVIDD#PBF is available at Aetrix Electronics and suitable for battery management systems, industrial motor controls, and telecom power distribution requiring stable component supply across extended temperature ranges and high-reliability production programs.
Supply support for LTC6102HVIDD#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6102 product line was designed specifically for precision high-side current sensing in harsh, high-voltage environments - targeting applications demanding ultra-low offset, wide temperature stability, and robust common-mode rejection without optical isolation.
FAQ
What is the maximum common-mode voltage the LTC6102HVIDD#PBF can handle?
The LTC6102HVIDD#PBF supports a maximum supply voltage of 105V (absolute rating), with operational common-mode input range extending from (V+ – 20V) to (V+ + 1V) on the +IN pin and (V+ – 4V) to (V+ + 0.3V) on the –INF/–INS pins. This enables reliable operation on 48V, 72V, and 96V bus systems while maintaining accuracy.
Does the LTC6102HVIDD#PBF include a disable function?
No, the LTC6102HVIDD#PBF does not include a disable function. It is the standard HV version (LTC6102HV), not the -1 variant. Disable functionality is exclusive to part numbers ending in "-1" (e.g., LTC6102HVIDD-1#PBF), which feature an EN pin. The LTC6102HVIDD#PBF operates continuously when powered.
What is the purpose of the VREG pin on the LTC6102HVIDD#PBF?
The VREG pin on the LTC6102HVIDD#PBF provides an internally regulated supply for biasing internal circuitry. It must be decoupled with a minimum 0.1µF capacitor to V+, but it is not intended to power external components. Connecting loads to VREG may degrade accuracy or cause instability.
Can the LTC6102HVIDD#PBF be used with a 100µΩ shunt resistor at 100A?
Yes, the LTC6102HVIDD#PBF is well-suited for this application. With ±10µV max input offset, a 100µΩ shunt yields only 10µV offset error at 100A - equivalent to 0.01% full-scale error. Its 2V max sense voltage rating accommodates up to 2000A with appropriate RIN/ROUT scaling, and its Kelvin input structure minimizes PCB trace resistance errors.
How does the LTC6102HVIDD#PBF differ from the standard LTC6102CDD#PBF?
The LTC6102HVIDD#PBF is the high-voltage (HV) grade with 5V–100V supply range and –40°C to 85°C guaranteed operation, whereas the LTC6102CDD#PBF has a 4V–60V supply range and 0°C–70°C specification. Both share the same DFN package and core architecture, but the HV variant enables higher bus voltage applications like industrial 48V+ systems and telecom power.
LTC6102HVIDD#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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:
- 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-DFN (3x3)
LTC6102HVIDD#PBF FAQ
1.How can I place an order for LTC6102HVIDD#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6102HVIDD#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 LTC6102HVIDD#PBF reliable?
The price and inventory of LTC6102HVIDD#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6102HVIDD#PBF is usually 5 days.
3.What payment methods are accepted for LTC6102HVIDD#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6102HVIDD#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6102HVIDD#PBF?
LTC6102HVIDD#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6102HVIDD#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 LTC6102HVIDD#PBF?
For technical support, including LTC6102HVIDD#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6102HVIDD#PBF requirements.
6.How does Aetrix verify that LTC6102HVIDD#PBF is sourced from the original manufacturer or authorized distributors?
All LTC6102HVIDD#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 LTC6102HVIDD#PBF meets industry standards.
7.What is the process for return or replacement of LTC6102HVIDD#PBF?
All LTC6102HVIDD#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6102HVIDD#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 LTC6102HVIDD#PBF part is unused and in its original packaging.
Return procedure for LTC6102HVIDD#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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