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STMicroelectronics TS1871IYLT
- Part No.:
- TS1871IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS1871IYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,983
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Product details
Overview
TS1871IYLT from STMicroelectronics is a single-channel, rail-to-rail input/output operational amplifier optimized for ultra-low-voltage battery-powered systems. It operates from 1.8 V to 6 V, delivers 1.6 MHz gain bandwidth, consumes only 400 µA per channel, and supports rail-to-rail output swing within 100 mV of each supply rail under 600 Ω load - enabling direct interface with modern low-voltage microcontrollers and audio codecs in portable consumer devices.
For engineers reviewing the TS1871IYLT datasheet, TS1871IYLT pinout, TS1871IYLT application, or TS1871IYLT equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and AEC-Q100-qualified automotive-grade alternatives - all grounded in ST's production datasheet Doc ID 6992 Rev 7.
Technical Context
The TS1871IYLT implements a CMOS input stage with extended common-mode range (VCC− − 0.2 V to VCC+ + 0.2 V at 25 °C) and high open-loop gain (>77 dB), enabling precision signal conditioning near supply rails. Its unity-gain stable architecture supports capacitive loads up to 100 pF without oscillation, confirmed by 53° phase margin measurements.
It features latch-up immunity (200 mA), 2 kV HBM ESD tolerance, and guaranteed operation across −40 °C to +125 °C - meeting automotive-grade reliability requirements as indicated by its "Y" suffix and AEC-Q100 qualification noted in Table 13 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 6 V - enables direct use with single-cell Li-ion (3.0–3.7 V), NiMH (1.2 V × 2), or coin-cell (3 V) power sources without regulation. |
| Gain Bandwidth Product | 1.6 MHz (typ.) - supports closed-loop bandwidths up to ~150 kHz at gain = 10, suitable for sensor amplification and audio pre-amplification. |
| Supply Current per Channel | 400 µA (typ.) - allows integration into always-on subsystems with sub-1 mA total quiescent budget. |
| Input Offset Voltage | 1 mV (typ.), 6 mV (max) over temperature - ensures ≤1.2 mV error in 12-bit ADC front-ends with 3 V full-scale range. |
| Output Drive Capability | ±65 mA (typ.) - drives 600 Ω loads to rail with <100 mV headroom, sufficient for headphone drivers and analog multiplexer buffers. |
| Common-Mode Input Range | VCC− − 0.2 V to VCC+ + 0.2 V - accepts signals beyond supply rails, simplifying level-shifting in mixed-supply systems. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive and industrial edge-sensing applications. |
Pinout & Package
SOT23-5L micropackage (3.0 × 2.8 × 1.3 mm, 5-pin, gull-wing); RoHS-compliant, ECOPACK®-qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking ±65 mA into 600 Ω load. |
| 2 (−IN) | Inverting input | Differential input node; bias current ≤150 nA (max) minimizes offset in high-impedance sensor interfaces. |
| 3 (VCC−) | Negative supply rail | Ground reference for single-supply operation; supports true 0 V input common-mode down to −0.2 V. |
| 4 (+IN) | Non-inverting input | High-impedance input node; extends common-mode range 200 mV beyond VCC−/VCC+, enabling direct connection to DAC outputs. |
| 5 (VCC+) | Positive supply rail | Accepts 1.8–6 V; internal regulation not required - reduces BOM count in space-constrained designs. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 1.8 V systems - output swings to within 100 mV of both rails with 600 Ω load. |
| Extended Vicm | Supports input signals 200 mV below VCC− and 200 mV above VCC+, eliminating need for external level shifters in mixed-rail sensor nodes. |
| AEC-Q100 Qualified | Automotive-grade reliability confirmed via stress testing per AEC-Q100 Rev G; marked "Y" in part number per Table 13. |
| Low Power Operation | 400 µA supply current enables >1-year battery life in coin-cell-powered IoT sensors operating at 10 µA average system current. |
| High Output Drive | 65 mA sink/source capability allows direct driving of analog switches, LED bias circuits, and low-impedance transducer interfaces. |
Applications
| Portable Audio Interface | Battery-Powered Sensor Node |
|---|---|
|
Use Scenario: Amplifying MEMS microphone output before ADC sampling in wireless earbuds. IC Role / Device Role / Timing Role: Low-noise (27 nV/√Hz), rail-to-rail op-amp configured as non-inverting gain stage with 1.8 V supply. Use Value: Delivers full 0–1.8 V signal swing to 12-bit SAR ADC while consuming only 400 µA - extending battery runtime by 30% vs. legacy 5 V op-amps. |
Use Scenario: Conditioning thermistor voltage in automotive cabin temperature sensor module. IC Role / Device Role / Timing Role: Precision buffer with extended Vicm, operating from 3.3 V rail across −40 °C to +125 °C ambient. Use Value: Maintains <1.5 mV offset drift over full temperature range, enabling ±0.5 °C measurement accuracy without calibration. |
| Laptop Touchpad Controller | Industrial Handheld Scanner |
|
Use Scenario: Driving capacitive touch sense electrodes in ultrabook trackpads. IC Role / Device Role / Timing Role: High-output-drive (±65 mA) buffer isolating MCU GPIO from 100 pF electrode capacitance. Use Value: Slew rate of 0.54 V/µs ensures fast settling (<1 µs) during mutual capacitance scanning, reducing frame latency by 22%. |
Use Scenario: Amplifying photodiode current in ruggedized barcode scanner with 2.8 V Li-ion supply. IC Role / Device Role / Timing Role: Transimpedance amplifier with rail-to-rail output, optimized for 1.8–2.8 V operation and ESD-hardened inputs. Use Value: 2 kV HBM ESD rating eliminates need for external TVS diodes on optical front-end, reducing PCB area by 12 mm². |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS1871ILT | Same silicon, SOT23-5L package, commercial grade (−40 °C to +85 °C) - lacks AEC-Q100 qualification and extended temp screening. | Not approved for automotive under-hood or safety-critical modules requiring Grade 2 or Grade 0 temperature coverage. | Select when cost sensitivity outweighs automotive qualification needs and ambient temperature stays below 85 °C. |
| MCP6001T-E/OT | Microchip device; 1 µA supply current, 1 MHz GBW, 0.6 V/µs slew rate - lower drive (23 mA), no extended Vicm (VSS to VDD − 0.3 V). | Insufficient output current for 600 Ω headphone loads; limited common-mode range restricts use with DACs referenced to VDD. | Choose only for ultra-low-power sensor buffering where output drive and rail extension are non-critical. |
Compared with TS1871ILT, the TS1871IYLT adds automotive-grade reliability without sacrificing bandwidth or drive strength; versus MCP6001T-E/OT, it trades 0.6 µA quiescent current for 65× higher output current and 400 mV wider input range - making it superior for audio, actuator, and harsh-environment sensing.
Availability
TS1871IYLT is available at Aetrix Electronics and suitable for automotive cabin sensors, portable medical monitors, and industrial handheld scanners requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS1871IYLT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
The TS187x family was developed specifically for ultra-low-voltage, rail-to-rail signal conditioning in battery-constrained and automotive environments - emphasizing precision, robustness, and minimal external components.
FAQ
Is TS1871IYLT pin-compatible with TS1871ILT?
Yes - both share identical SOT23-5L pinout (OUT, −IN, VCC−, +IN, VCC+) and electrical behavior. The only differences are temperature rating (−40 °C to +125 °C vs. −40 °C to +85 °C) and AEC-Q100 qualification, which do not affect physical or functional compatibility in non-automotive designs.
What is the maximum capacitive load the TS1871IYLT can drive without instability?
The TS1871IYLT remains unity-gain stable with up to 100 pF capacitive load, as verified by 53° phase margin in Figure 33 of the datasheet. For loads >100 pF, a series resistor (≥10 Ω) between output and capacitor is required to maintain stability.
Does TS1871IYLT support single-supply operation with input signals at ground?
Yes - its extended common-mode input range includes VCC− − 0.2 V, allowing direct connection of 0 V-referenced signals (e.g., from resistive sensors or DACs) even when VCC− = 0 V, without external level-shifting circuitry.
How does the 2 kV HBM ESD rating impact board-level design?
The 2 kV HBM rating means the device withstands typical handling ESD events without external protection. However, for interfaces exposed to user contact (e.g., audio jacks), adding a 100 pF/1 kΩ RC filter at the input is still recommended to suppress RF ingress and transient coupling.
TS1871IYLT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 500µA
- Current - Output / Channel:
- 80 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TS1871IYLT FAQ
1.How can I place an order for TS1871IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS1871IYLT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TS1871IYLT reliable?
The price and inventory of TS1871IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS1871IYLT is usually 5 days.
3.What payment methods are accepted for TS1871IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS1871IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS1871IYLT?
TS1871IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS1871IYLT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TS1871IYLT?
For technical support, including TS1871IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS1871IYLT requirements.
6.How does Aetrix verify that TS1871IYLT is sourced from the original manufacturer or authorized distributors?
All TS1871IYLT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TS1871IYLT meets industry standards.
7.What is the process for return or replacement of TS1871IYLT?
All TS1871IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TS1871IYLT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TS1871IYLT part is unused and in its original packaging.
Return procedure for TS1871IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS1871IYLT Tags
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LM358DT
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