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LT1990HS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock

Analog Devices LT1990 precision difference amplifier in 8-pin SOIC package, rated for ±250V common-mode input voltages. Delivers 7.4 µV maximum input offset voltage and 68 dB typical CMRR for high-voltage differential signal measurement. Available in lead-free version with worldwide distribution for industrial and test applications.

ACTIVEIntegrated CircuitVerified Jun 2026
Package / Visual Reference
LT1990HS8#PBFSmall Outline Packages
Quick Facts
Manufacturer
Analog Devices
Package
Small Outline Packages
Pin Count
8
Lifecycle
ACTIVE
Datasheet
LT1990HS8#PBF Datasheet PDF
Category
Integrated Circuit
Price
From $2.5100(MOQ 19)
Temp Range
-40.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

What are the key features of LT1990HS8#PBF?

  • ±250V common-mode input voltage rating for direct high-voltage rail differential measurement
  • 7.4 µV maximum input offset voltage ensuring precision in millivolt-level signal conditioning
  • 68 dB typical CMRR (60 dB minimum) for effective common-mode noise rejection
  • 8-pin SOIC package enabling space-efficient high-voltage difference amplifier PCB integration

What is LT1990HS8#PBF used for?

The LT1990HS8 is designed for high-voltage differential measurement applications where the common-mode voltage may swing from -250V to +250V relative to circuit ground, such as motor drive current sensing, power supply output monitoring, and high-side current measurement on 100V to 200V industrial bus systems. Its precision 7.4 µV offset enables accurate measurement of small differential signals superimposed on large common-mode voltages without requiring a separate isolation amplifier. It is also used in automated test equipment and battery formation systems where cell voltages must be measured relative to a high-voltage stack reference.

What are the specifications of LT1990HS8#PBF?

Pbfree CodeNo
Manufacturer Package Code05-08-1610 (S8)
YTEOL10
Amplifier TypeOPERATIONAL AMPLIFIER
ArchitectureVOLTAGE-FEEDBACK
Common-mode Reject Ratio-Min60dB
Common-mode Reject Ratio-Nom68dB
Frequency CompensationYES
Input Offset Voltage-Max7.4 µV
JESD-30 CodeR-PDSO-G8
JESD-609 Codee3
Low-OffsetYES
MicropowerYES
Neg Supply Voltage Limit-Max-18 V
Neg Supply Voltage-Nom (Vsup)-15 V
Number of Functions1
Package Body MaterialPLASTIC/EPOXY
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Peak Reflow Temperature (Cel)260
PowerNO
Programmable PowerYES
Qualification StatusNot Qualified
Slew Rate-Min0.3V/us
Slew Rate-Nom0.55V/us
Supply Current-Max0.18mA
Supply Voltage Limit-Max18V
Supply Voltage-Nom (Vsup)15V
Surface MountYES
TechnologyBIPOLAR
Temperature GradeAUTOMOTIVE
Terminal FinishMatte Tin (Sn)
Terminal FormGULL WING
Terminal Pitch1.27mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
Unity Gain BW-Nom105
WidebandNO
PackageSmall Outline Packages

Compliance & Regulatory

RoHS StatusCompliant
Lead-FreeYes (Pb-Free)
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.33.00.01
Country of OriginMalaysia

Where can I find the LT1990HS8#PBF datasheet?

LT1990HS8#PBF Datasheet Download

Official datasheet from Analog Devices

What are equivalent replacements for LT1990HS8#PBF?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What common-mode voltage range does LT1990HS8 support and why is this critical for motor drive current sensing?

The LT1990HS8 supports common-mode input voltages from -250V to +250V, allowing it to measure shunt resistor voltage drops directly on high-voltage DC bus rails without isolation. In a 150V DC motor drive, the shunt sits at bus potential while the amplifier output references low-voltage control ground, eliminating the need for an optocoupler or transformer-based isolation stage and reducing BOM cost by several components in high-side current feedback loops.

How does the 7.4 µV maximum offset voltage of LT1990HS8 affect measurement accuracy in a 1mΩ shunt current sensor?

With a maximum offset of 7.4 µV and a 1mΩ shunt, the LT1990HS8 introduces a worst-case current measurement error of 7.4 mA, regardless of the common-mode voltage across the full ±250V range. For a 10A full-scale current sensor this represents less than 0.1% error, enabling 12-bit accurate current measurement directly at the power device without additional error correction firmware or trimming in production.

In what industrial applications is LT1990HS8 more practical than a galvanically isolated amplifier for high-side sensing?

LT1990HS8 replaces galvanic isolation in applications where the bus voltage stays within ±250V and input-to-output creepage requirements do not mandate full galvanic isolation per IEC 61010. Industrial power supplies up to 200V output, 3-phase inverter DC link sensing, and battery management systems with cell stacks up to 200V benefit from LT1990's direct high-voltage difference amplifier approach, which provides single-pole settling below 10 µs rather than the hundreds of microseconds typical for magnetically isolated solutions.

What PCB layout considerations are important when using the LT1990HS8 8-pin SOIC package at ±250V common-mode inputs?

At ±250V common mode, the LT1990HS8 requires PCB creepage and clearance of at least 4mm between the high-voltage input pins and any low-voltage signal or ground traces to meet IEC 60950 and IEC 61010 basic insulation requirements. The 8-pin SOIC body is approximately 5mm x 4mm, so input resistor networks should be placed with conformal coating in mind. A 100 nF ceramic bypass capacitor on the 5V supply pin within 5mm of the IC is sufficient for stable operation in noisy motor drive environments.

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About Analog Devices

Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.

View all Analog Devices parts →
AvailabilityIn Stock
Reference Price (USD)
From $2.5100
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
19+$3.3300$63.27
100+$3.2465$324.65
500+$2.7250$1362.50
1000+$2.5100$2510.00
pcs
Unit price: $3.3300 · Total: $63.27

In Stock · 24h Response · Worldwide Shipping

Direct Contact
WhatsApp InquiryEmail RFQ
Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

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RP
Rajesh Patel
Procurement Manager, VoltEdge Energy, India

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