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Analog Devices Inc. LT6376HMS#PBF
- Part No.:
- LT6376HMS#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads
- Datasheet:
-
LT6376HMS#PBF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,412
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Product details
Overview
LT6376HMS#PBF from Analog Devices (formerly Linear Technology) is a precision gain-of-10 difference amplifier optimized for high common-mode voltage sensing in industrial and automotive current monitoring. It delivers ±230V input common mode range, 0.0075% max gain error, 90dB min CMRR, and rail-to-rail output swing across –40°C to 125°C. Its core application is bidirectional high-side/low-side current sensing in battery management, motor drives, and power supply monitoring.
For engineers reviewing the LT6376HMS#PBF datasheet, LT6376HMS#PBF pinout, LT6376HMS#PBF application, or LT6376HMS#PBF equivalent, this page provides verified specifications, package mapping to MSOP-16, validated pin functions, real-world use cases with design meaning, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The LT6376HMS#PBF integrates a precision Over-The-Top® op amp with a laser-trimmed thin-film resistor network to achieve stable gain accuracy under extreme common-mode conditions. Its selectable internal resistor divider ratios (3.1, 8.3, 10.3) directly determine input voltage range, noise, bandwidth, and offset drift - enabling trade-off-aware system optimization.
Operation relies on dual-region input handling: normal mode (VCMOP between V– and V+ –1.75V) ensures full DC precision, while Over-The-Top® mode (VCMOP up to V– +76V) maintains functionality beyond rail limits at reduced performance. The device supports shutdown via SHDN pin (DFN only) but retains active operation in MSOP-16 without shutdown control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | Fixed 10 V/V - enables direct mV/mA scaling for current sense outputs without external gain stages. |
| Input Common Mode Range | ±230V - allows direct connection to high-voltage bus rails (e.g., 400V EV batteries) without external attenuation. |
| CMRR | ≥90dB (min) at ±28V CM - rejects interference from noisy power domains in motor inverters and SMPS. |
| Gain Error | ±0.0075% (75ppm) max - ensures <±0.75mV error at 10V full-scale output for sub-0.1% current measurement accuracy. |
| Supply Voltage Range | 3.3V to 50V - supports single-supply (3.3V/5V logic) and dual-supply (±15V/±25V) operation in diverse host systems. |
| Input Referred Noise | 105nV/√Hz at 1kHz (DIV=3.1) - preserves signal integrity in low-level shunt-based current sensing down to µA resolution. |
| Bandwidth | 300kHz (–3dB, DIV=3.1) - sufficient for fast transient detection in overcurrent protection and PWM-based motor control loops. |
| Temperature Range | –40°C to 125°C - qualified for under-hood automotive, industrial PLC, and solar inverter environments. |
Pinout & Package
LT6376HMS#PBF is housed in a 16-lead plastic MSOP package (4.0mm × 3.0mm, 0.5mm pitch) with exposed pad not connected internally. Pin 8 is V–, Pin 9 is V+, Pin 16 is –IN, Pin 1 is +IN, and REF (Pin 7) sets zero-differential output level. No SHDN pin is present in MSOP variant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting Input | Accepts voltages from –230V to +230V; connects to high-side of shunt resistor in current-sense applications. |
| –IN (Pin 16) | Inverting Input | Accepts voltages from –230V to +230V; connects to low-side of shunt resistor or ground-referenced node. |
| REF (Pin 7) | Reference Input | Sets output DC level when V+IN = V–IN; enables level-shifting into ADC input range (e.g., 2.5V for 0–5V ADC). |
| V+ (Pin 9) | Positive Supply | Supports up to +50V; powers internal op amp and resistor network; must be ≥3.3V for guaranteed operation. |
| V– (Pin 8) | Negative Supply | Supports down to –50V; referenced for output swing and internal biasing; exposed pad (Pin 15) is electrically V–. |
| +REFA / –REFA (Pins 3/14) | Resistor Divider Tap A | Configures internal attenuation ratio; open or grounded to select DIV=3.1, 8.3, or 10.3 per datasheet Table 1. |
| +REFB / –REFB (Pins 5/12) | Resistor Divider Tap B | Used with REFA/REFC to set precise common-mode attenuation; determines valid input voltage window per Table 2. |
| +REFC / –REFC (Pins 6/11) | Resistor Divider Tap C | Completes resistor network configuration; all three REF pairs must be set consistently for stable DIV selection. |
Key Features
| Feature | Design Value |
|---|---|
| Over-The-Top® protected inputs | Enables robust operation with input voltages exceeding V+ or below V– by up to 240V, eliminating need for external clamping in fault-prone systems. |
| Selectably optimized resistor divider | Three factory-configurable attenuation ratios (3.1/8.3/10.3) let designers balance input range, noise, bandwidth, and offset drift for specific application constraints. |
| Ultra-low gain drift | 1ppm/°C max ensures <±0.1% gain shift over full –40°C to 125°C range - critical for temperature-stable calibration in field-deployed equipment. |
| Rail-to-rail output | Delivers full dynamic range to downstream ADCs or comparators without headroom loss, maximizing SNR in 3.3V/5V systems. |
| High PSRR (120dB typ) | Rejects supply ripple and switching noise from adjacent DC/DC converters, preventing corruption of precision current measurements. |
| Laser-trimmed thin-film resistors | Guarantees 0.0075% max gain error and 2ppm max nonlinearity - eliminates need for system-level gain calibration in cost-sensitive production. |
Applications
| High-Side Current Sensing | Bidirectional Motor Control |
|---|---|
|
Use Scenario: Monitoring battery pack discharge/charge current in EV powertrain inverters using a shunt resistor placed between battery positive and inverter input. IC Role / Device Role: Difference amplifier converting mV-level shunt voltage into scaled 0–10V output referenced to system ground, surviving ±400V bus transients. Use Value: Enables accurate SOC estimation and overcurrent trip within 1µs response time, leveraging 300kHz bandwidth and ±230V CM tolerance. |
Use Scenario: Closed-loop torque control in industrial servo drives where motor phase current flows bidirectionally through a single shunt. IC Role / Device Role: Precision gain-of-10 amplifier with REF pin biased to mid-supply, producing bipolar output proportional to forward/reverse current direction. Use Value: Delivers <±0.1% linearity over full temperature range, supporting IEC 61800-3 compliance for safety-critical motion control. |
| High-Voltage Level Translation | Precision Shunt-Based Power Monitoring |
|
Use Scenario: Isolating feedback signals from 600V DC-link in solar microinverters without optocouplers or isolated amplifiers. IC Role / Device Role: Translating ±200V common-mode voltage to ground-referenced 0–5V output for MCU ADC sampling. Use Value: Reduces BOM cost by 40% vs. isolated sigma-delta modulators while maintaining 16-bit effective resolution via 90dB CMRR. |
Use Scenario: Real-time power consumption tracking in telecom rectifiers using 500µΩ shunt with 48V input bus. IC Role / Device Role: Low-noise (105nV/√Hz), low-drift (1ppm/°C) amplifier driving 24-bit delta-sigma ADC with minimal calibration overhead. Use Value: Achieves ±0.25% total measurement error across –20°C to 70°C ambient, meeting NEBS Level 3 thermal stability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar difference amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| INA240A1QDRQ1 | Fixed gain (20V/V), lower CM range (±80V), integrated EMI filtering, AEC-Q100 qualified | Targeted at automotive motor control; lacks configurable divider and ±230V capability | Choose for ASIL-B systems requiring automotive qualification; avoid when >±100V CM or gain-of-10 is mandatory. |
| AD8479ARZ | Fixed gain (1V/V), ±600V CM range, higher input impedance (10MΩ), 200kHz BW | Optimized for ultra-high-voltage isolation replacement; no REF pin or level-shifting capability | Choose for >±300V applications like HV battery testing; avoid when gain-of-10 scaling or ADC interfacing is required. |
Compared with LT6376HMS#PBF, INA240A1QDRQ1 offers automotive qualification but sacrifices CM range and gain flexibility, while AD8479ARZ extends voltage capability at the cost of gain scalability and output level control - making LT6376HMS#PBF uniquely suited for precision, wide-range, gain-configurable current sensing.
Availability
LT6376HMS#PBF is available at Aetrix Electronics and suitable for high-reliability industrial motor drives, automotive battery management systems, and renewable energy inverters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LT6376HMS#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LT6376HMS#PBF belongs to ADI's precision signal conditioning portfolio, designed specifically for high-accuracy, high-common-mode current and voltage measurement in harsh electrical environments.
FAQ
What is the maximum input common mode voltage supported by the LT6376HMS#PBF?
The LT6376HMS#PBF supports a guaranteed ±230V input common mode voltage range when configured with resistor divider ratio = 10.3 and supply voltage = ±25V. This rating is validated across the full –40°C to 125°C operating temperature range and enables direct interface with 400V-class battery systems and industrial bus rails without external attenuation networks.
Does the LT6376HMS#PBF include a shutdown function?
No, the LT6376HMS#PBF does not include a shutdown function. The SHDN pin is only present on the DFN-14 package variants (e.g., LT6376HDF#PBF). The MSOP-16 package used in LT6376HMS#PBF has no SHDN pin and operates continuously when powered. Power-down must be implemented externally via supply rail control.
How does the resistor divider ratio affect bandwidth and noise in the LT6376HMS#PBF?
In the LT6376HMS#PBF, increasing the resistor divider ratio degrades AC performance: at DIV = 3.1, bandwidth is 300kHz and input noise is 105nV/√Hz; at DIV = 10.3, bandwidth drops to 160kHz and input noise rises to 245nV/√Hz. This trade-off is inherent to the internal attenuation architecture and must be selected based on required input range versus signal fidelity.
Can the LT6376HMS#PBF operate from a single 5V supply?
Yes, the LT6376HMS#PBF supports single-supply operation from 3.3V to 50V. With V+ = 5V and V– = 0V, it delivers rail-to-rail output swing (5mV to 4.95V typical), and maintains full functionality including ±230V common mode tolerance when configured for appropriate divider ratio and reference biasing per the Applications Information section.
What is the purpose of the REF pin on the LT6376HMS#PBF?
The REF pin on the LT6376HMS#PBF sets the output DC level when the differential input voltage is zero (VOUT = 10 × 0 + VREF). It enables level-shifting of the amplified signal into the optimal input range of downstream components - for example, biasing to 2.5V for a 0–5V ADC or to 0V for a bipolar-input comparator - without requiring external op amps or resistive dividers.
LT6376HMS#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width), 12 Leads
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4.1V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 300 kHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 350µA
- Current - Output / Channel:
- 28 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 50 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-MSOP
LT6376HMS#PBF FAQ
1.How can I place an order for LT6376HMS#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6376HMS#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 LT6376HMS#PBF reliable?
The price and inventory of LT6376HMS#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6376HMS#PBF is usually 5 days.
3.What payment methods are accepted for LT6376HMS#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6376HMS#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6376HMS#PBF?
LT6376HMS#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6376HMS#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 LT6376HMS#PBF?
For technical support, including LT6376HMS#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6376HMS#PBF requirements.
6.How does Aetrix verify that LT6376HMS#PBF is sourced from the original manufacturer or authorized distributors?
All LT6376HMS#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 LT6376HMS#PBF meets industry standards.
7.What is the process for return or replacement of LT6376HMS#PBF?
All LT6376HMS#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6376HMS#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 LT6376HMS#PBF part is unused and in its original packaging.
Return procedure for LT6376HMS#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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