LT1490AHMS8 Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT1490AHMS8 is a dual general-purpose rail-to-rail input/output operational amplifier rated for ±22 V (44 V single-supply) operation in an automotive-grade 8-pin MSOP package. It features 72 dB CMRR and low 20 nA bias current, suitable for battery-powered and automotive sensor circuits.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LT1490AHMS8 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.1440(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Rail-to-rail input and output swing on supplies up to ±22 V (44 V single supply) for maximum dynamic range in automotive signal chains
- Dual-channel op-amp with 20 nA maximum input bias current enabling accurate interfacing with high-impedance sensors and resistive dividers
- 8-pin MSOP package (3 mm × 3 mm) with automotive-grade qualification and 72 dB common-mode rejection ratio for EMI-resistant designs
Applications
The LT1490AHMS8 is designed for automotive sensor signal conditioning, precision instrumentation, and battery-management analog front-ends operating from wide supply voltages up to 44 V. Its rail-to-rail I/O capability and low 20 nA bias current make it effective for resistive bridge amplifiers, 4–20 mA current-loop receivers, and low-power monitoring circuits in industrial and automotive electronic control units.
Specifications
| YTEOL | 0 |
| 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 | e0 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | NO |
| 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 |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.033V/us |
| Slew Rate-Nom | 0.07V/us |
| Supply Current-Max | 0.16mA |
| Supply Voltage Limit-Max | 22V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 200 |
| Voltage Gain-Min | 100000 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What supply voltage range does the LT1490AHMS8 support, and how does rail-to-rail I/O benefit automotive sensor designs?
The LT1490AHMS8 operates from supplies up to ±22 V (44 V total), with a rail-to-rail input and output range that allows the output to swing within millivolts of both supply rails. This maximizes the usable dynamic range in 12 V or 24 V automotive sensor applications where supply variation of ±20% is common, reducing the need for level-shifting circuits.
How does the 20 nA input bias current of the LT1490AHMS8 affect accuracy when amplifying a 1 MΩ resistive bridge sensor?
With a maximum input bias current of 20 nA and a 1 MΩ source resistance, the LT1490AHMS8 introduces at most 20 mV of bias-induced offset voltage — well within the error budget of most industrial bridge sensor front-ends. This low bias current allows the amplifier to be used with high-impedance pH sensors, thermistor bridges, or strain gauge circuits without additional buffer stages.
For a 24 V industrial 4–20 mA current-loop transmitter, when would LT1490AHMS8 be chosen over a standard single-supply op-amp?
The LT1490AHMS8 is preferred in 4–20 mA loop transmitters when the supply rail exceeds 36 V or when rail-to-rail output swing is needed to drive a current source transistor directly from a 24 V bus. Its ±22 V rating covers 24 V loop supplies with margin, and the dual-channel 8-pin MSOP package enables both the input buffer and output driver stages to fit in a footprint under 20 mm².
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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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| 16+ | $4.4800 | $71.68 |
| 57+ | $4.1440 | $236.21 |
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