TS1871IYLT STMicroelectronics Integrated Circuit (SOT23 (5-Pin)) In Stock
TS1871IYLT is a single rail-to-rail input/output operational amplifier from STMicroelectronics operating down to 1.8 V supply. Featuring 60 dB minimum CMRR and 0.125 µA bias current, it delivers low-power precision signal conditioning. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TS1871IYLT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4180(MOQ 100)
- 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 optimized for 1.8 V supply operation in portable and IoT devices
- 60 dB minimum CMRR (80 dB nominal) for effective noise rejection in low-voltage sensor interfaces
- Ultra-low bias current of 0.125 µA at 25°C ensures minimal loading on high-impedance signal sources
- Compact SOT23-5 package with built-in frequency compensation simplifies layout in space-constrained designs
Applications
The TS1871IYLT is optimized for ultra-low-voltage portable systems such as wearable health monitors, IoT sensor nodes, and battery-powered data loggers where the supply voltage can be as low as 1.8 V. Its rail-to-rail input and output capability maximizes dynamic range in single-cell lithium-ion or two-cell alkaline battery applications. The 60 dB CMRR and low bias current also make it an effective front-end amplifier for resistive bridge sensors, photodiodes, and temperature sensing circuits in industrial and consumer products.
Specifications
| Factory Lead Time | 18Weeks |
| YTEOL | 7.8 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.15 µA |
| Bias Current-Max (IIB) @25C | 0.125 µA |
| Common-mode Reject Ratio-Min | 60dB |
| Common-mode Reject Ratio-Nom | 80dB |
| Frequency Compensation | YES |
| Input Offset Current-Max (IIO) | 0.06 µA |
| Input Offset Voltage-Max | 6000 µV |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 5 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Slew Rate-Min | 0.38V/us |
| Slew Rate-Nom | 0.6V/us |
| Supply Current-Max | 0.875mA |
| Supply Voltage Limit-Max | 7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Unity Gain BW-Nom | 1700 |
| Voltage Gain-Min | 3162 |
| Wideband | NO |
| Package | SOT23 (5-Pin) |
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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum supply voltage for the TS1871IYLT, and what battery chemistries does this enable?
The TS1871IYLT operates from a supply voltage as low as 1.8 V, which is compatible with a single lithium-ion cell at end-of-discharge (approximately 2.7 V), two series AAA alkaline cells near depletion, and regulated 1.8 V rails from low-dropout regulators. This makes the device directly usable in wearable devices, Bluetooth Low Energy sensor nodes, and portable medical instruments without requiring a boost converter to raise the supply voltage above the amplifier's minimum threshold.
How does the rail-to-rail output of the TS1871IYLT benefit ADC-driving applications at low supply voltages?
At a 1.8 V supply, a non-rail-to-rail op-amp typically limits output swing to within 0.3–0.5 V of each rail, leaving only 0.8–1.2 V of usable dynamic range for driving a 12-bit or 16-bit ADC. The TS1871IYLT's rail-to-rail output stage swings to within millivolts of the supply rails, delivering nearly the full 1.8 V to the ADC and maximizing SNR. This is critical in 1.8 V single-supply data acquisition systems where every millivolt of headroom directly affects measurement resolution.
How should procurement teams plan for the 18-week lead time of the TS1871IYLT?
With a factory lead time of 18 weeks, procurement teams should maintain a safety stock equivalent to at least 5–6 weeks of average weekly consumption to cover replenishment cycles without production interruptions. The YTEOL rating of 7.8 years suggests stable availability for near-term product generations, but placing scheduled blanket purchase orders with quarterly releases is advisable for programs consuming more than 5,000 units per year. The SOT23-5 package is a standard form factor, so qualifying an equivalent dual-sourced device as a backup is also recommended.
Can the TS1871IYLT replace a standard 3.3 V op-amp in a resistive bridge sensor interface, and what adjustments are needed?
Yes, the TS1871IYLT can replace a 3.3 V op-amp in a resistive bridge interface if the supply is reduced to 1.8 V or the system already operates at 1.8 V. The 60 dB minimum CMRR is sufficient for bridge excitation voltages up to 1.8 V, and the 0.125 µA bias current introduces less than 125 µV error across a 1 MΩ source impedance. The designer should recalculate the gain-setting resistor network to account for the reduced supply headroom, and verify that the output voltage range at 1.8 V meets the ADC's full-scale input requirement before finalizing the design.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.8700 | $87.00 |
| 250+ | $0.8200 | $205.00 |
| 500+ | $0.7800 | $390.00 |
| 1000+ | $0.7320 | $732.00 |
| 3000+ | $0.4300 | $1290.00 |
| 6000+ | $0.4180 | $2508.00 |
In Stock · 24h Response · Worldwide Shipping
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