LT1490AIS8#TRPBF Tech Specifications
Analog Devices - LT1490AIS8#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices - LT1490AIS8#TRPBF

Product Attribute	Attribute Value
Part Number	LT1490AIS8#TRPBF
Package	SO-8
Description	SO-8
Stock Condition	Get 4480 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	Analog Devices, Inc.
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Frequently Asked Questions(FAQ)

How does the LT1490AIS8#TRPBF compare to other general-purpose op-amps in terms of power consumption and input bias current for battery-powered sensor interface applications?: The LT1490AIS8#TRPBF draws a total supply current of 50 µA across both channels, which is favorable for low-power designs. With an input bias current of just 1 nA, it minimizes loading on high-impedance sensor nodes, making it well-suited for long-life battery applications such as environmental monitoring or portable medical devices where signal integrity and quiescent current are critical trade-offs.

What is the impact of the LT1490AIS8#TRPBF’s gain bandwidth product (200 kHz) on signal fidelity in precision data acquisition systems using multiplexers?: In multiplexer-based data acquisition chains, the 200 kHz gain bandwidth product limits the usable closed-loop gain to approximately 20 at 10 kHz, beyond which phase margin degrades significantly. For accurate reconstruction of signals above 5 kHz, designers must limit gains to ≤5 or implement post-amplification filtering—this constraint becomes especially relevant when cascading with sample-and-hold circuits sensitive to slew-induced distortion.

Can the LT1490AIS8#TRPBF drive capacitive loads exceeding 100 pF without stability issues, and how does this affect PCB layout requirements?: While the LT1490AIS8#TRPBF can tolerate moderate capacitive loading, driving loads above 100 pF may introduce peaking or oscillations due to internal compensation roll-off. To maintain stability, a series isolation resistor of 10–50 Ω should be placed at the output, and feedback traces must avoid coupling noise from switching regulators or digital lines within 5 mm.

How does the voltage input offset (285 µV) of the LT1490AIS8#TRPBF influence calibration routines in high-precision instrumentation front ends?: A 285 µV input offset requires trimming or software correction in systems demanding sub-millivolt accuracy over wide temperature ranges. For example, in a 1 V full-scale amplifier with gain 100, this offset translates to 28.5 mV error—significant compared to typical ADC resolution thresholds. Designers must either use external null pins or implement dynamic offset cancellation algorithms to meet stringent accuracy targets.

Is the LT1490AIS8#TRPBF suitable for driving relay coils or LED arrays directly, given its output current capability (25 mA per channel)?: Although rated for 25 mA continuous output per channel, driving inductive loads like relays demands additional protection circuitry due to back-EMF risks. Without flyback diodes, inductive transients can exceed the absolute maximum ratings. For LEDs, while 25 mA supports standard indicator densities, higher brightness applications may require current-sense feedback or external MOSFET drivers to manage thermal stress.

How does the operating temperature range (-40°C to 85°C) of the LT1490AIS8#TRPBF constrain its use in industrial motor control environments?: The LT1490AIS8#TRPBF operates reliably up to 85°C, which aligns with commercial-grade industrial controls but falls short of automotive (up to 125°C) or military (-55°C to 125°C) specifications. In enclosed motor drives where ambient temperatures exceed 70°C due to convection limitations, active cooling or derating of performance margins may be necessary to prevent thermal runaway or parametric drift.

What are the implications of the LT1490AIS8#TRPBF’s rail-to-rail output swing when interfacing with 12-bit ADCs in single-supply systems?: Rail-to-rail output allows the LT1490AIS8#TRPBF to maximize dynamic range in single-supply configurations, e.g., driving a 0–5 V ADC from a 5 V supply without sacrificing headroom. However, near-rail outputs exhibit reduced linearity and increased settling time—typically by 10–20%—which can compromise effective number of bits (ENOB) if not accounted for in timing budgets during conversion windows.

How does the LT1490AIS8#TRPBF perform in differential amplification topologies requiring high common-mode rejection ratio (CMRR), such as strain gauge bridges?: While the LT1490AIS8#TRPBF offers moderate CMRR (~90 dB typ), it falls short of precision instrumentation amplifiers. For bridge measurements with microvolt-level signals, external chopper-stabilized or auto-zero architectures provide superior CMRR (>100 dB). Using the LT1490AIS8#TRPBF directly risks significant gain errors under large common-mode voltages unless carefully balanced with matched resistors (tolerance <0.01%).

Can the LT1490AIS8#TRPBF be safely used in redundant fault-tolerant analog paths, considering its open-loop gain and noise characteristics?: Yes, but only if redundancy includes mismatch monitoring. The device’s 80 dB open-loop gain ensures minimal gain error between channels under ideal conditions. However, without periodic self-test routines, subtle process variations could cause hidden failures. Implementing duty-cycle-based offset drift checks helps detect latent faults before catastrophic system failure occurs.

What is the effect of the LT1490AIS8#TRPBF’s slew rate (0.06 V/µs) on transient response when amplifying step inputs in switched-capacitor filter stages?: At 0.06 V/µs, the LT1490AIS8#TRPBF cannot accurately track fast transients above ~1.2 MHz for a 5 V step. In switched-capacitor filters driven by clock edges, this limitation introduces droop and harmonic distortion. Compensation via lower gain settings or pre-conditioning the input with faster buffer stages is often required to preserve waveform fidelity.

How does the package choice (8-SOIC) affect thermal dissipation for the LT1490AIS8#TRPBF in densely populated PCBs?: The 8-SOIC package has limited θJA (~150°C/W), meaning junction temperature rises rapidly under sustained load. In compact layouts with adjacent high-power components, the LT1490AIS8#TRPBF may experience thermal throttling or accelerated aging. Ensuring adequate copper pour and spacing (>2 mm) reduces thermal coupling and maintains reliability in space-constrained designs.

What considerations apply when replacing the LT1490AIS8#TRPBF with a newer variant like the LT1490A in existing reference designs?: Although pin-compatible, newer variants may feature improved specs (e.g., lower offset drift, higher GBW), but always verify compatibility with supply rails, ESD protection levels, and internal compensation schemes. Substitution without full bench validation risks unexpected phase margin changes or oscillation in feedback networks optimized for legacy behavior.

How does the Moisture Sensitivity Level (MSL 1) of the LT1490AIS8#TRPBF simplify manufacturing processes in volume production?: MSL 1 indicates unlimited shelf life before reflow, eliminating the need for baking prior to assembly—reducing lead time and cost in high-volume SMT lines. This simplifies logistics for contract manufacturers handling multiple RoHS-compliant parts like the LT1490AIS8#TRPBF without special handling protocols.

What precautions are necessary during PCB layout to minimize input-referred noise in the LT1490AIS8#TRPBF when used in audio preamplifiers?: Input-referred noise (~40 nV/√Hz) is dominated by Johnson noise at high frequencies. Keep input traces short (<5 mm), guard against capacitive coupling from clock lines, and use star-grounding for feedback networks. Avoid routing feedback loops near digital return currents; instead, place decoupling capacitors within 2 mm of the supply pins to stabilize PSRR at audible frequencies.

How does the LT1490AIS8#TRPBF handle short-circuit outputs compared to fault-protected alternatives in power management monitoring circuits?: The LT1490AIS8#TRPBF features internal short-circuit protection that limits output current to 25 mA, preventing thermal damage during overloads. However, unlike dedicated power-good detectors with open-drain outputs, it lacks built-in latching or interrupt signaling. External comparators are needed to trigger fault responses in safety-critical power sequencing logic.

What role does the base product number LT1490 play in selecting replacement parts for legacy designs using LT1490AIS8#TRPBF?: The LT1490 family shares architectural similarities, enabling drop-in replacements across most applications—but always cross-check electrical parameters such as GBW, offset voltage, and supply range. Variants like LT1490CS8 may omit extended temperature grades or have different packaging; verifying datasheet alignment prevents field failures in harsh environments.

How does the ECCN classification (EAR99) of the LT1490AIS8#TRPBF affect export compliance for international design teams?: ECCN EAR99 signifies U.S. export controls do not restrict commercial analog ICs like the LT1490AIS8#TRPBF under most circumstances. However, end-use matters—if deployed in encryption or surveillance systems, additional licensing might apply regardless of component origin. Always consult current BIS regulations before shipping prototypes internationally.

Customers Also Interested in

Recommended Products

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.

Write a Review

Your Email address will not be published.

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

Use your express account for shipment if you have one.
Use our account for the shipment. Refer to the table below for the approximate charges.

(Different time frame / countries / package size has different price.)

Delivery Method

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

Note:: The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

QC (Quality Warranty)
Payment Support
Packaging
Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.

Strict quality inspection builds a solid foundation for electronic component quality.

Visual inspection
Performance testing and reliability verification
Standardized full-process testing
Precise control of every parameter

We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.

Quality Inspection

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone: +00852 9146 4856
Email: info@allelco.com

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.

ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification

ISO 9001: 2015
ISO 13485: 2016
ISO 14001: 2015
ISO 28000: 2007
ISO 45001: 2018
GB/T 27922-2011

SMTA
IPC
ESD
PSMA