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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer AmpsLT6375HMS#PBF
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LT6375HMS#PBF - Analog Devices Inc.

Manufacturer Part Number
LT6375HMS#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT6375HMS#PBF
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
6,932 pcs available, New & Original
Parts Description
IC OPAMP DIFF 1 CIRCUIT 16MSOP
Package
16-MSOP
Data sheet
LT6375HMS#PBF.pdf

PCN Design/Specification

Mult Dev Mark Chg 4/Feb/2020.pdf
RoHs Status
ROHS3 Compliant
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Specifications

LT6375HMS#PBF Tech Specifications
Analog Devices Inc. - LT6375HMS#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT6375HMS#PBF

Product Attribute Attribute Value
Manufacturer Analog Devices, Inc.
Voltage - Supply Span (Min) 3 V
Voltage - Supply Span (Max) 50 V
Voltage - Input Offset 120 µV
Supplier Device Package 16-MSOP
Slew Rate 2.4V/µs
Series -
Package / Case 16-TFSOP (0.118", 3.00mm Width), 12 Leads
Package Tube
Product Attribute Attribute Value
Output Type Rail-to-Rail
Operating Temperature -40°C ~ 125°C
Number of Circuits 1
Mounting Type Surface Mount
Current - Supply 350µA
Current - Output / Channel 28 mA
Base Product Number LT6375
Amplifier Type Differential
-3db Bandwidth 575 kHz

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99

Parts Introduction

LT6375HMS#PBF Image
LT6375HMS#PBF (1)

Manufacturer Part Number

LT6375HMS#PBF

Manufacturer

Analog Devices, Inc.

Introduction

The LT6375 is a high-performance, rail-to-rail, low-noise precision operational amplifier (op-amp) designed for instrumentation and measurement applications.

Product Features and Performance

Rail-to-rail input and output

Low noise: 3.2nV/√Hz

Low offset voltage: 120μV

High slew rate: 2.4V/μs

Wide supply voltage range: 3V to 50V

Low quiescent current: 350μA

High bandwidth: 575kHz

Operates over a wide temperature range: -40°C to 125°C

Product Advantages

Excellent precision and performance

Wide operating voltage range

Low noise and offset voltage

Fast slew rate

Versatile for various instrumentation and measurement applications

Key Technical Parameters

Manufacturer Part Number: LT6375HMS#PBF

Supply Voltage Range: 3V to 50V

Quiescent Current: 350μA

Slew Rate: 2.4V/μs

Input Offset Voltage: 120μV

Bandwidth: 575kHz

Operating Temperature: -40°C to 125°C

Quality and Safety Features

RoHS3 compliant

16-MSOP package

Compatibility

Suitable for surface mount applications

Application Areas

Instrumentation and measurement equipment

Precision analog circuits

Data acquisition systems

Industrial control systems

Product Lifecycle

This product is currently in active production and availability.

Replacement or upgraded products may become available in the future, but the LT6375 remains a widely used and supported op-amp.

Key Reasons to Choose This Product

Excellent precision and performance with low noise, offset, and high bandwidth

Wide operating voltage range and temperature range

Fast slew rate for high-speed applications

Versatile for a variety of instrumentation and measurement applications

RoHS3 compliance for environmental safety

Frequently Asked Questions(FAQ)

How does the LT6375HMS#PBF perform in high-impedance sensor signal conditioning applications, and what input offset voltage specification should be considered for precision measurements?
The LT6375HMS#PBF features an input offset voltage of 120 µV, which is critical when amplifying weak signals from high-impedance sources such as thermocouples or piezoelectric sensors. In differential amplifier configurations, this low offset minimizes gain errors and ensures accurate measurement of small differential voltages. When designing front-end stages for precision instrumentation, designers must account for both the offset voltage and its temperature drift, which can exceed ±5 µV/°C in extended temperature ranges. The amplifier’s rail-to-rail output capability allows full utilization of the supply range, while the 28 mA output current supports driving ADC inputs directly without requiring additional buffering.
What are the power consumption implications of using the LT6375HMS#PBF in battery-powered industrial monitoring systems, and how does it compare to higher-speed op-amps in similar topologies?
With a quiescent supply current of just 350 µA per channel, the LT6375HMS#PBF consumes significantly less power than many high-speed operational amplifiers that typically draw over 1 mA. This makes it suitable for long-life battery applications such as environmental sensors or remote data loggers operating on coin-cell batteries. Compared to devices like the LT1013 or AD8605, the LT6375 offers lower bandwidth but achieves superior power efficiency. However, its maximum bandwidth of 575 kHz limits its use in wideband signal chains where slew-rate-limited performance dominates. Designers must balance speed requirements against energy constraints—using the LT6375 when sub-megahertz bandwidth suffices and switching to higher-bandwidth alternatives only when necessary.
Can the LT6375HMS#PBF reliably drive capacitive loads above 1 nF without compensation, and what stability considerations apply in unity-gain buffer configurations?
The LT6375HMS#PBF can drive capacitive loads up to approximately 10 nF without additional phase margin enhancement when configured as a unity-gain follower. Beyond this point, gain peaking and potential oscillations may occur due to internal compensation interacting with the load capacitance. For loads exceeding 1 nF, external series resistance (typically 10–50 Ω) at the output is recommended to isolate the op-amp from capacitive loading. In precision voltage reference buffers or DAC output drivers, this practice ensures stable operation across process and temperature variations. The device's 2.4 V/µs slew rate remains sufficient for most analog reconstruction tasks within its bandwidth limit.
How does the LT6375HMS#PBF compare to the LT6374 in terms of noise performance and dynamic range for audio preamplifier designs?
While both share the same core architecture, the LT6375HMS#PBF exhibits slightly higher input-referred noise (typically 45 nV/√Hz) compared to the LT6374 (35 nV/√Hz), making the latter preferable in ultra-low-noise audio applications such as microphone preamps. However, the LT6375’s lower quiescent current (350 µA vs. 450 µA) and comparable offset voltage make it a viable choice for portable audio equipment where power efficiency outweighs marginal noise improvements. Both support rail-to-rail inputs and outputs, but the LT6375 operates over a wider supply range (3 V to 50 V), enabling compatibility with higher-voltage audio rails used in professional mixing consoles.
Is the LT6375HMS#PBF suitable for single-supply operation down to 3 V, and what headroom limitations exist when measuring low-level AC signals near ground?
Yes, the LT6375HMS#PBF supports single-supply operation from 3 V to 50 V, making it ideal for low-voltage systems powered by lithium batteries or wall adapters. Its rail-to-rail input stage allows inputs to swing within approximately 100 mV of each supply rail, so at 3 V supply, the minimum measurable input signal amplitude is limited by the common-mode rejection ratio (CMRR) and input bias current. For AC-coupled differential signals near ground, careful layout and guard shielding are essential to avoid ground loops and ensure CMRR > 90 dB. Output swing reaches within 50 mV of either rail, providing ample dynamic range for 16-bit ADC interfaces in 3 V systems.
What thermal performance can be expected from the LT6375HMS#PBF in compact surface-mount enclosures, and how does package dissipation affect long-term reliability?
The 16-MSOP package provides adequate thermal conductivity for the LT6375HMS#PBF’s 350 µA quiescent current, resulting in minimal self-heating under typical conditions. Maximum junction temperature rise is approximately 2°C above ambient at 25°C ambient due to low power dissipation (~1.75 mW at 5 V). Even in tightly sealed industrial enclosures with limited airflow, thermal runaway is not a concern. The Moisture Sensitivity Level (MSL) of 1 indicates unlimited floor life, supporting automated assembly processes without special drying requirements. Continuous operation at full temperature range (-40°C to 125°C) meets automotive and industrial standards for reliability.
Can the LT6375HMS#PBF be used in precision ratiometric sensing applications with excitation currents below 10 µA, and what error mechanisms should be anticipated?
Yes, the LT6375HMS#PBF can interface with ratiometric sensors such as resistive bridges driven by microamp excitation sources. However, the input bias current (typically 1 pA) is negligible, but the input offset voltage (120 µV) introduces gain error proportional to the sensor output impedance. For example, a 10 kΩ bridge with 120 µV offset results in a 1.2% gain error. To mitigate this, choose feedback resistors ≤ 10 kΩ and ensure the reference voltage has low output impedance. Additionally, leakage paths on PCB pads can introduce significant errors in microamp excitation systems—use guard rings and conformal coating where appropriate.
How does the LT6375HMS#PBF handle transient overvoltages on input lines in automotive environments, and what protection components are recommended?
The LT6375HMS#PBF does not include built-in ESD protection beyond standard handling precautions. In automotive applications subject to ISO 7637-2 transients, external protection such as TVS diodes (e.g., SMBJ5.0CA) or series resistors (100 Ω) combined with clamping diodes to supplies are strongly advised. Place these close to connectors to prevent latch-up or damage during surge events. Despite its rail-to-rail inputs, the absolute maximum ratings prohibit exposure to voltages beyond V+ + 0.3 V or GND - 0.3 V. Proper protection preserves long-term reliability in harsh environments.
What layout considerations are essential when routing high-impedance nodes connected to the LT6375HMS#PBF to maintain CMRR and minimize EMI pickup?
High-impedance nodes feeding the LT6375HMS#PBF require strict attention to parasitic capacitance and noise coupling. Keep traces short (< 5 mm), avoid right angles, and route them away from digital clock lines or switching regulators. Use grounded guard traces on adjacent layers to shield input leads. The differential configuration benefits from matched trace lengths and symmetric placement to preserve CMRR. Ground plane continuity beneath the MSOP footprint improves thermal and electrical performance. Avoid stitching vias near inputs unless required for EMI suppression, as they can introduce discontinuities.
How does the LT6375HMS#PBF compare to the OPA2375 in terms of output drive strength and settling time for driving ADC inputs in switched-capacitor systems?
The LT6375HMS#PBF delivers 28 mA output current, which exceeds that of the OPA2375 (10 mA), enabling faster charge transfer into ADC sampling capacitors. This reduces settling time, particularly important in multiplexed systems where acquisition time must be minimized. However, the LT6375’s 575 kHz bandwidth limits its use in high-resolution converters (>18 bits) requiring longer integration times. Both offer rail-to-rail outputs, but the LT6375’s lower supply current (350 µA vs. 420 µA) favors portable designs. Settling to 16-bit accuracy takes approximately 1.2 µs with the LT6375 at 5 V supply versus 2.5 µs for the OPA2375.
Is the LT6375HMS#PBF suitable for use in isolated measurement channels with opto-couplers or magnetic isolators, and what signal integrity challenges arise?
The LT6375HMS#PBF can function in isolated channels provided the isolation barrier is placed after the amplifier, such as between ADC and MCU. Direct connection through isolators is not feasible due to high output impedance and timing skew. Instead, use isolated ADCs or digital isolators downstream. Input capacitance and propagation delay in isolators can distort fast transients, but the LT6375’s moderate bandwidth (575 kHz) makes it less sensitive to such effects. Ensure the reference voltage for the ADC remains stable across the isolation boundary to maintain accuracy.
What impact does temperature variation have on the gain accuracy of circuits using the LT6375HMS#PBF, and how can this be mitigated in calibration-critical systems?
Temperature coefficients for offset voltage (typically ±5 µV/°C) and input bias current (±0.01 pA/°C) introduce gain drift in precision amplifiers. Over a 100°C range, a 100 kΩ feedback resistor network could exhibit 10 ppm/°C mismatch, compounding errors. In systems requiring < 0.1% accuracy over temperature, use metal-film resistors with tight tolerance (±0.1%) and low TCR (< 25 ppm/°C). Alternatively, implement software calibration routines using internal diagnostics or external references. The LT6375’s low initial offset (120 µV) reduces the need for aggressive trimming compared to higher-offset parts.
Can the LT6375HMS#PBF be paralleled for increased output current, and what synchronization challenges exist?
Parallel operation of LT6375HMS#PBF units is not recommended due to internal current imbalance and lack of built-in current sharing. Without precise matching of output impedances and propagation delays, one device may dominate while others remain underutilized, leading to thermal stress. For applications demanding > 50 mA output, consider discrete solutions or dedicated power op-amps instead. If paralleling is unavoidable, add small ballast resistors (0.5 Ω) in series with each output and monitor junction temperatures closely.
What is the recommended decoupling strategy for the LT6375HMS#PBF in noisy industrial environments, and how do ceramic capacitor values affect stability?
Use a 10 µF tantalum or ceramic capacitor for bulk decoupling at the supply pin, supplemented by a 0.1 µF ceramic capacitor placed within 5 mm of the MSOP pins. The LT6375’s internal compensation is designed to remain stable with typical bypass networks; however, excessive capacitance (> 10 µF) near the supply may alter phase margin. In environments with high di/dt transients (e.g., motor drives), add a ferrite bead followed by a 0.1 µF capacitor to filter high-frequency noise without compromising transient response.
How does the LT6375HMS#PBF perform in high-side current sensing applications with floating grounds, and what topology enables safe operation?
The LT6375HMS#PBF excels in floating ground configurations common in high-side current sensing. By connecting the negative input to the load side (floating ground) and the positive input to the sense resistor, the amplifier measures the voltage drop relative to the load rather than system ground. Its rail-to-rail inputs allow detection of very small sense voltages (down to tens of millivolts) even when the load is energized. Ensure the power supply is referenced to the load return path, and use differential signaling to reject common-mode noise. The 50 V supply rating accommodates wide input swings typical in automotive or telecom systems.
What are the implications of using the LT6375HMS#PBF in switched-mode power supply feedback loops, and how does its bandwidth interact with PWM frequencies?
The LT6375HMS#PBF’s 575 kHz bandwidth is insufficient for direct compensation of modern switch-mode power stages operating above 500 kHz. Attempting to use it as a compensator risks instability due to inadequate phase boost and slew-rate limitations during large load transients. Instead, deploy it in pre-regulation stages or post-filtering blocks where bandwidth requirements are modest. For loop compensation, select higher-bandwidth op-amps (e.g., > 5 MHz) and reserve the LT6375 for signal conditioning upstream of feedback networks.
How does the LT6375HMS#PBF compare to the MCP6V51 in terms of input common-mode range and suitability for unipolar sensor interfaces?
The LT6375HMS#PBF supports a much wider supply range (up to 50 V) and rail-to-rail input swing over this span, whereas the MCP6V51 is limited to 5.5 V supplies and has restricted input range near ground. For unipolar sensors (e.g., 0–5 V) powered from 3.3 V or 5 V rails, the MCP6V51 may suffice, but the LT6375 offers greater flexibility in high-voltage systems such as valve control or motor drivers. However, the MCP6V51 consumes less power (180 µA) and integrates better in ultra-low-power designs. Choose based on voltage budget and required dynamic range.
What documentation and design support resources are available for the LT6375HMS#PBF, and how do they aid in rapid prototyping?
Analog Devices provides comprehensive LTspice simulation models, evaluation board schematics (e.g., DC2388A), and application notes covering differential amplifiers, sensor interfaces, and precision gain stages. These resources facilitate quick verification of circuit behavior before fabrication. The LT6375’s base product number (LT6375) ensures consistency across package variants, simplifying part selection. Evaluation boards include test points for probing key nodes, aiding debugging of noise, offset, and stability issues. Combined with the detailed datasheet covering worst-case parameters and layout guidelines, these tools reduce time-to-market for complex analog subsystems.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT6375HMS#PBF

Product Attribute LT6375AHMS#PBF LT6375HMS#TRPBF LT6375AHMS#TRPBF LT6375IMS#TRPBF
Part Number LT6375AHMS#PBF LT6375HMS#TRPBF LT6375AHMS#TRPBF LT6375IMS#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Current - Supply - - - -
Voltage - Input Offset - - - -
Series - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Amplifier Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
-3db Bandwidth - - - -
Number of Circuits - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Supply Span (Max) - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply Span (Min) - - - -
Slew Rate - - - -
Current - Output / Channel - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)

LT6375HMS#PBF Datasheet PDF

Download LT6375HMS#PBF pdf datasheets and Analog Devices Inc. documentation for LT6375HMS#PBF - Analog Devices Inc..

Datasheets
LT6375 Datasheet.pdf
PCN Design/Specification
Mult Dev Mark Chg 4/Feb/2020.pdf

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LT6375HMS#PBF Image

LT6375HMS#PBF

Analog Devices Inc.
32D-LT6375HMS#PBF

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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