LT1490AHMS8#TRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The LT1490AHMS8#TRPBF is a dual Over-The-Top rail-to-rail input and output operational amplifier from Analog Devices, featuring 72 dB common-mode rejection ratio and a maximum input offset voltage of 3200 µV. Housed in an 8-pin MSOP package, it accepts common-mode inputs beyond the positive supply rail, making it ideal for high-side sensing and microprocessor supervisory circuits. Available in tape-and-reel, lead-free PBF format for automated assembly.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1490AHMS8#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.7600(MOQ 1)
- 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 LT1490AHMS8#TRPBF?
- Over-The-Top input stage allows common-mode voltages to exceed the positive supply rail by several volts, enabling true high-side sensing
- Rail-to-rail input and output swing maximizes dynamic range from a single low-voltage supply
- 72 dB common-mode rejection ratio ensures accurate differential signal amplification in noisy environments
- Maximum input bias current of 0.02 µA minimizes offset errors in high-impedance sensor interface circuits
- Compact 8-pin MSOP package (S-PDSO-G8) reduces PCB footprint in space-constrained dual op-amp designs
What is LT1490AHMS8#TRPBF used for?
The LT1490AHMS8#TRPBF is designed for high-side current sensing, power supply supervisory circuits, and microprocessor monitoring applications where the input common-mode voltage must exceed the positive supply. Its rail-to-rail output swing and low 0.02 µA bias current make it well-suited for precision signal conditioning of resistive bridge sensors, battery management circuits, and industrial 4-20 mA current loop transmitters. The dual amplifier configuration allows designers to implement two-channel amplification or a difference amplifier topology within a single compact package.
What are the specifications of LT1490AHMS8#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.02 µA |
| Common-mode Reject Ratio-Nom | 72dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 3200 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -22 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.02V/us |
| Slew Rate-Nom | 0.07V/us |
| Supply Current-Max | 0.055mA |
| Supply Voltage Limit-Max | 22V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 200 |
| Voltage Gain-Min | 25000 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Where can I find the LT1490AHMS8#TRPBF datasheet?
LT1490AHMS8#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1490AHMS8#TRPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What makes the LT1490AHMS8#TRPBF suitable for high-side current sensing applications above the supply rail?
The LT1490AHMS8#TRPBF uses an Over-The-Top input architecture that allows common-mode input voltages to exceed the positive supply rail by several volts. With a 72 dB common-mode rejection ratio and a maximum input bias current of 0.02 µA, it accurately measures the small differential voltage across a shunt resistor even when both sense pins are above VCC.
How does the rail-to-rail output capability of the LT1490AHMS8#TRPBF benefit low-voltage single-supply designs?
Rail-to-rail output swing allows the LT1490AHMS8#TRPBF output to approach within millivolts of both supply rails, maximizing the usable output voltage range on a 3.3 V or 5 V single supply. This is critical for driving analog-to-digital converter inputs that require signals spanning the full 0 V to VCC range without clipping, improving measurement resolution in 12-bit or 16-bit data acquisition systems.
When would a designer choose the LT1490AHMS8#TRPBF over a standard rail-to-rail op amp for a battery monitoring circuit?
Standard rail-to-rail op amps cannot accept inputs above the positive supply, so they cannot sense the top of a battery stack directly. The LT1490AHMS8#TRPBF Over-The-Top input handles common-mode voltages exceeding VCC, making it the preferred choice for battery cell monitoring circuits where both differential inputs sit above the 3.3 V or 5 V logic supply by several volts.
What packaging and ordering options are available for the LT1490AHMS8#TRPBF, and how does this affect procurement lead times?
The LT1490AHMS8#TRPBF is supplied in an 8-pin MSOP (S-PDSO-G8) package in tape-and-reel format (TR suffix) with RoHS-compliant lead-free (PBF) construction. Tape-and-reel packaging supports automated pick-and-place assembly for medium-to-high production volumes, and lead-free compliance simplifies qualification under WEEE and RoHS directives across 40+ countries.
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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.
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|---|---|---|
| 1+ | $4.4500 | $4.45 |
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