LT1494IMS8#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LT1494IMS8#PBF is a micropower rail-to-rail input/output operational amplifier with 3 kHz gain-bandwidth product, 96 dB minimum CMRR, 1 nA input bias current, operating from 3 V to 5 V single supply, housed in an 8-pin MSOP. Available worldwide.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LT1494IMS8#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7900(MOQ 19)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1494IMS8#PBF?
- Rail-to-rail input and output (RRIO) swing maximizes dynamic range on single 3 V or 5 V supplies
- 1 nA maximum input bias current at 25°C enables accurate operation with megohm source impedances
- 96 dB minimum / 114 dB typical CMRR provides exceptional common-mode noise rejection in instrumentation
- 3 kHz gain-bandwidth product in micropower topology minimizes quiescent current for battery-operated sensors
- 8-pin MSOP package for compact precision analog front-ends in space-constrained PCB designs
What is LT1494IMS8#PBF used for?
The LT1494IMS8#PBF is designed for ultra-low-power precision signal conditioning in battery-operated instruments such as pH meters, electrochemical sensors, and portable medical monitors where nanoamp bias currents and rail-to-rail output swings are essential. Its 114 dB typical CMRR makes it suitable for bridge amplifier configurations in strain gauge and load cell interfaces where common-mode rejection directly affects measurement accuracy. The 3 V to 5 V single-supply operation and micropower quiescent current extend battery life in always-on sensing nodes and remote wireless sensor systems.
What are the specifications of LT1494IMS8#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1660 |
| YTEOL | 10 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | CURRENT-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.0017 µA |
| Bias Current-Max (IIB) @25C | 0.001 µA |
| Common-mode Reject Ratio-Min | 96dB |
| Common-mode Reject Ratio-Nom | 114dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 775 µV |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Low-Bias | YES |
| Low-Offset | YES |
| Micropower | YES |
| Neg Supply Voltage Limit-Max | -18 V |
| Neg Supply Voltage-Nom (Vsup) | -15 V |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | YES |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Min | 0.4V/us |
| Slew Rate-Nom | 1V/us |
| Supply Current-Max | 0.003mA |
| Supply Voltage Limit-Max | 18V |
| Supply Voltage-Nom (Vsup) | 15V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | INDUSTRIAL |
| 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 | 2.7 |
| Voltage Gain-Min | 50000 |
| 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 LT1494IMS8#PBF datasheet?
LT1494IMS8#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1494IMS8#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low is the input bias current of LT1494IMS8#PBF and which sensor types benefit most from this specification?
The LT1494IMS8#PBF has a maximum input bias current of 1 nA at 25°C. This is critical for high-impedance sensors such as pH electrodes (source impedance of 1 MΩ to 100 MΩ), photodiodes in transimpedance configurations, and ion-selective electrodes where even 10 nA of bias current flowing through a 10 MΩ source impedance would create a 100 mV offset error, overwhelming the signal of interest.
What is the CMRR of LT1494IMS8#PBF and why does a 114 dB rejection matter in a Wheatstone bridge measurement?
The LT1494IMS8#PBF achieves 114 dB typical common-mode rejection ratio. In a Wheatstone bridge for strain or pressure measurement, the bridge output is a small differential signal riding on a large common-mode voltage equal to half the supply (e.g., 1.65 V on a 3.3 V system). At 114 dB CMRR, a 1.65 V common-mode voltage contributes only 0.1 µV of referred input error, which is negligible compared to the millivolt-scale bridge output signals.
Can LT1494IMS8#PBF operate from a 3.3 V single supply in a solar-powered remote sensor node?
Yes, the LT1494IMS8#PBF operates from 3 V to 5 V single supply, making it directly compatible with a 3.3 V LDO-regulated solar harvesting system. Its micropower quiescent current—typically under 10 µA total—allows continuous 24-hour operation from small supercapacitors or thin-film batteries recharged by modest solar panels of even 0.1 mA average current in low-light environments.
For a pH measurement circuit replacing a bench op-amp with LT1494IMS8#PBF, what board space savings does the MSOP-8 package enable?
The LT1494IMS8#PBF MSOP-8 package measures approximately 3 mm x 3 mm with 0.65 mm pin pitch, compared to 5 mm x 4 mm for a standard SOIC-8. This represents roughly 60% footprint area reduction, freeing board space for the high-impedance guard trace routing and shielding structures that pH electrode interfaces require, while maintaining the same 8-pin pinout as standard DIP-8 compatible op-amp replacements.
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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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|---|---|---|
| 19+ | $3.7000 | $70.30 |
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