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Home Products Integrated Circuits (ICs)Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps~~LT1490ACMS8#TRPBF~~

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LT1490ACMS8#TRPBF - Analog Devices Inc.

Name: Analog Devices Inc. LT1490ACMS8#TRPBF
Brand: Analog Devices Inc.
SKU: LT1490ACMS8#TRPBF
Availability: InStock
Rating: 5 (4 reviews)

Manufacturer Part Number: LT1490ACMS8#TRPBF

Manufacturer: Analog Devices, Inc.

Allelco Part Number: 32D-LT1490ACMS8#TRPBF

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 11,126 pcs available, New & Original

Parts Description: IC OPAMP GP 2 CIRCUIT 8MSOP

Package: 8-MSOP

Data sheet: LT1490ACMS8#TRP.pdf

Datasheets
LT1490A, LT491A Datasheet.pdf

Other Related Documents
Tape and Reel Packaging.pdf

PCN Design/Specification
Mult Dev 11/Oct/2022.pdf Mult Dev Mark Chg 3/Feb/2020.pdf

RoHs Status: ROHS3 Compliant

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Our certification

In stock: 11126

Specifications

LT1490ACMS8#TRPBF Tech Specifications
Analog Devices Inc. - LT1490ACMS8#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT1490ACMS8#TRPBF

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
Voltage - Supply Span (Min)	2 V
Voltage - Supply Span (Max)	44 V
Voltage - Input Offset	250 µV
Supplier Device Package	8-MSOP
Slew Rate	0.06V/µs
Series	LT®
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Package	Tape & Reel (TR)
Output Type	Rail-to-Rail

Product Attribute	Attribute Value
Operating Temperature	0°C ~ 70°C
Number of Circuits	2
Mounting Type	Surface Mount
Gain Bandwidth Product	200 kHz
Current - Supply	50µA (x2 Channels)
Current - Output / Channel	25 mA
Current - Input Bias	1 nA
Base Product Number	LT1490
Amplifier Type	General Purpose

Environmental & Export Classifications

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

Parts Introduction

LT1490ACMS8#TRPBF (1)

Manufacturer Part Number

LT1490ACMS8#TRPBF

Manufacturer

Analog Devices, Inc.

Introduction

High-performance dual operational amplifier

Suitable for a wide range of general-purpose amplifier applications

Product Features and Performance

Dual operational amplifier with rail-to-rail output

Wide supply voltage range from 2V to 44V

Low input offset voltage of 250μV

Low input bias current of 1nA

Wide gain bandwidth of 200kHz

Slew rate of 0.06V/μs

Output current capability of 25mA per channel

Operates over the industrial temperature range of 0°C to 70°C

Product Advantages

Versatile dual op-amp design

Excellent performance characteristics

Wide supply voltage and operating temperature range

Small 8-pin MSOP package

Key Technical Parameters

Manufacturer Part Number: LT1490ACMS8#TRPBF

Package: 8-MSOP (0.118", 3.00mm Width)

Output Type: Rail-to-Rail

Mounting Type: Surface Mount

Number of Circuits: 2

Gain Bandwidth Product: 200 kHz

Voltage Supply Span (Min/Max): 2V to 44V

Current Supply: 50μA per channel

Slew Rate: 0.06V/μs

Voltage Input Offset: 250μV

Amplifier Type: General Purpose

Current Output / Channel: 25 mA

Current Input Bias: 1 nA

Quality and Safety Features

RoHS3 compliant

Compatibility

Can be used in a wide range of general-purpose amplifier applications

Application Areas

Suitable for various instrumentation, measurement, and control applications

Can be used in buffer, level-shifting, summing, and difference amplifier circuits

Product Lifecycle

This is an active product from Analog Devices, with no information on discontinuation.

Key Reasons to Choose This Product

Excellent performance characteristics, including low offset voltage, low bias current, and high bandwidth

Wide supply voltage and temperature range for versatility

Small 8-pin MSOP package for compact designs

Robust and reliable operation due to Analog Devices' quality standards

Frequently Asked Questions(FAQ)

How does the LT1490ACMS8#TRPBF perform in single-supply applications requiring rail-to-rail output swing with low quiescent current?: The LT1490ACMS8#TRPBF maintains full rail-to-rail output capability across a supply range from 2 V to 44 V, making it suitable for single-supply designs where headroom is limited. With a total supply current of just 50 µA across both channels, it enables efficient operation in battery-powered or energy-sensitive systems. This combination supports extended runtime in portable instrumentation while delivering stable performance without significant DC offset degradation.

What are the implications of the LT1490ACMS8#TRPBF's input offset voltage and bias current on precision signal conditioning circuits?: At 250 µV typical input offset voltage and 1 nA input bias current, the LT1490ACMS8#TRPBF introduces minimal error in high-impedance or gain-stage configurations. For example, in a non-inverting amplifier with 100x gain, the amplified offset could reach 25 mV—potentially saturating downstream stages if calibration isn't applied. In high-gain sensor interfaces, this necessitates careful layout and consideration of offset trimming techniques to maintain system-level accuracy.

How should PCB layout be optimized when using two LT1490ACMS8#TRPBF channels in close proximity?: Due to shared power rails and potential crosstalk between the dual op-amps, separate bypass capacitors (e.g., 100 nF ceramic) should be placed near each V+ pin. Ground planes must remain unbroken under both amplifiers to minimize ground loops. Input traces should be routed individually with guard rings if guarding is used, and decoupling must account for simultaneous switching transients from both outputs to prevent supply droop affecting offset stability.

Can the LT1490ACMS8#TRPBF drive capacitive loads effectively in feedback-critical applications?: While the device can drive moderate capacitive loads, its open-loop output impedance rises at higher frequencies due to internal compensation. Driving loads exceeding ~100 pF may require series isolation resistors (typically 10–50 Ω) in series with the output to prevent oscillation. In unity-gain buffer configurations, this precaution becomes essential to ensure phase margin remains above 45° across the 200 kHz bandwidth.

How does the slew rate of the LT1490ACMS8#TRPBF impact its use in audio signal path design?: With a slew rate of only 0.06 V/µs, the LT1490ACMS8#TRPBF is unsuitable for wideband audio signals exceeding approximately 10 kHz full-scale sine waves. Distortion increases significantly above 5 kHz due to slew-induced peaking. It may be acceptable for narrowband audio below 1 kHz but would introduce audible distortion in music or speech applications, favoring faster op-amps like those with >1 V/µs slew rates instead.

What thermal considerations apply when operating the LT1490ACMS8#TRPBF in continuous output current conditions?: Each channel can source/sink up to 25 mA continuously. Assuming a 12 V supply and 10 mA load per channel, power dissipation reaches 120 mW per amplifier. In an 8-MSOP package with θJA ≈ 150°C/W, this results in a 18°C temperature rise above ambient—manageable in most environments. However, sustained output swings near supply rails increase dynamic power loss, so thermal derating should be evaluated under worst-case duty cycles.

How does the gain-bandwidth product (GBW) of the LT1490ACMS8#TRPBF affect closed-loop frequency response in feedback networks?: With a GBW of 200 kHz, the LT1490ACMS8#TRPBF provides consistent bandwidth regardless of gain setting up to this limit. For instance, at unity gain, bandwidth is unlimited; at 10x gain, it drops to 20 kHz; at 100x, to 2 kHz. Designers must ensure that noise shaping or filtering requirements do not push the loop gain beyond 200 kHz to avoid peaking or instability in compensated configurations.

Is the LT1490ACMS8#TRPBF suitable for industrial control systems operating near its temperature limits?: The LT1490ACMS8#TRPBF is rated for commercial temperatures (0°C to 70°C), which excludes many industrial environments. Extended operation near 70°C reduces long-term reliability margins, especially when combined with high ambient heat or poor airflow. For applications requiring >70°C operation, alternative devices with wider temperature ranges (e.g., -40°C to +85°C) should be considered despite similar electrical characteristics.

How does the Moisture Sensitivity Level (MSL) of the LT1490ACMS8#TRPBF influence assembly process controls?: Classified as MSL 1, the LT1490ACMS8#TRPBF requires no special handling beyond standard IPC/JEDEC guidelines. Components can remain indefinitely in dry packaging before reflow soldering. However, once opened, the assembly area must follow JEDEC J-STD-033 standards for humidity exposure time limits to prevent popcorning during reflow, particularly important in high-volume production lines.

What is the significance of the RoHS3 compliance status for the LT1490ACMS8#TRPBF in global manufacturing?: RoHS3 compliance confirms the LT1490ACMS8#TRPBF meets updated European Union restrictions on hazardous substances, including stricter limits on phthalates in plastics and additional reporting requirements. This ensures compatibility with modern environmental regulations in automotive, medical, and consumer electronics markets, reducing risk of non-conformance during certification audits.

How does the LT1490ACMS8#TRPBF compare to newer general-purpose op-amps like the LT1494 in terms of power efficiency and speed trade-offs?: Compared to the LT1494, the LT1490ACMS8#TRPBF trades slightly lower bandwidth (200 kHz vs. 1 MHz) and slew rate (0.06 V/µs vs. 0.4 V/µs) for marginally lower quiescent current (~50 µA vs. ~70 µA). Both share similar input specs, but the LT1494 offers better dynamic performance at the cost of higher power consumption—making the LT1490 preferable in ultra-low-power designs where bandwidth demands are modest.

What precautions are necessary when cascading multiple LT1490ACMS8#TRPBF stages in analog signal chains?: When cascading, each stage’s output impedance and the next stage’s input loading create cumulative effects. Since the LT1490ACMS8#TRPBF has moderate output drive (25 mA), direct connection between stages without buffering risks signal attenuation at higher frequencies. Additionally, noise and offset voltages accumulate across stages, potentially degrading SNR by 3–6 dB per additional amplifier unless gain distribution and filtering are carefully planned.

Why might the LT1490ACMS8#TRPBF exhibit reduced PSRR under high-frequency supply ripple?: Although not specified explicitly, the LT1490ACMS8#TRPBF’s internal compensation and lack of specialized power supply rejection circuitry mean PSRR degrades above 100 kHz. In applications with switching regulators sharing the same supply rail, this can couple ripple into sensitive analog nodes. Adding LC filters or dedicated LDOs ahead of the op-amp improves PSRR performance in such scenarios.

How does the package size of the LT1490ACMS8#TRPBF affect routing density in compact PCBs?: The 8-MSOP package measures 3.00 mm width and 6.10 mm length, allowing dense placement on fine-pitch PCBs. Its small footprint supports high channel density in space-constrained designs like handheld meters or wearable sensors. However, thermal vias under the exposed pad must be carefully managed to avoid solder wicking during reflow, which can compromise mechanical adhesion and thermal transfer.

What role does the base product number (LT1490) play in selecting compatible evaluation boards and reference designs?: The base product number LT1490 indicates that all variants (e.g., LT1490IS8#PBF, LT1490ACMS8#TRPBF) share identical electrical characteristics except for temperature grade and packaging. This allows engineers to use any LT1490 evaluation board interchangeably for functional testing, simplifying prototyping. Only layout differences between MSOP and TSSOP packages need consideration during migration.

How does the LT1490ACMS8#TRPBF handle input overvoltage protection in unprotected sensor interfaces?: The LT1490ACMS8#TRPBF lacks internal ESD diodes rated for external input overvoltage. Applying voltages beyond ±0.3 V relative to supply rails risks latch-up or junction breakdown. External clamping diodes (e.g., Schottky or Zener) must be added within 1–2 V of the supply rails to protect inputs, ensuring fault tolerance in harsh or miswired environments.

What is the expected lifetime impact of operating the LT1490ACMS8#TRPBF near maximum junction temperature?: Prolonged operation near 70°C ambient increases electromigration stress in semiconductor junctions, accelerating wear-out mechanisms. Accelerated life testing suggests a 10–20% reduction in MTBF when operated continuously at 70°C versus 25°C. For mission-critical systems, derating by 10–15°C improves long-term reliability, even if instantaneous performance appears adequate.

How does the REACH status of the LT1490ACMS8#TRPBF affect supply chain documentation requirements?: Declared as "REACH Unaffected," the LT1490ACMS8#TRPBF does not contain Substances of Very High Concern (SVHCs) above regulatory thresholds. This simplifies compliance paperwork for end-products targeting EU markets, eliminating the need for SCIP database notifications and reducing audit overhead during OEM certification processes.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT1490ACMS8#TRPBF

Product Attribute
Part Number	LT1490ACS8#TRPBF	LT1490ACMS8#PBF	LT1490ACDD#TRPBF	LT1490AHMS8#PBF
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Base Product Number	-	DAC34H84	MAX500	ADS62P42
Voltage - Input Offset	-	-	-	-
Voltage - Supply Span (Max)	-	-	-	-
Current - Supply	-	-	-	-
Gain Bandwidth Product	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Amplifier Type	-	-	-	-
Current - Output / Channel	-	-	-	-
Slew Rate	-	-	-	-
Number of Circuits	-	-	-	-
Voltage - Supply Span (Min)	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Series	-	-	-	-
Current - Input Bias	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C

LT1490ACMS8#TRPBF Datasheet PDF

Download LT1490ACMS8#TRPBF pdf datasheets and Analog Devices Inc. documentation for LT1490ACMS8#TRPBF - Analog Devices Inc..

Datasheets: LT1490A, LT491A Datasheet.pdf
Other Related Documents: Tape and Reel Packaging.pdf
PCN Design/Specification: Mult Dev 11/Oct/2022.pdf Mult Dev Mark Chg 3/Feb/2020.pdf

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Customer Reviews

Evaluation: 10 Articles

Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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