My Inquiry
My Account
STMicroelectronics TS951IYLT
- Part No.:
- TS951IYLT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TS951IYLT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,177
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TS951IYLT from STMicroelectronics is a single-channel rail-to-rail input/output BiCMOS operational amplifier optimized for 3 V and 5 V battery-powered systems, featuring 3 MHz gain-bandwidth product, 1 V/µs slew rate, 0.9 mA supply current at 3 V, and operation from 2.7 V to 12 V. It is housed in an AEC-Q100 qualified SOT23-5 automotive-grade package and used in portable headphone speaker drivers and medical instrumentation signal conditioning.
For engineers reviewing the TS951IYLT datasheet, TS951IYLT pinout, TS951IYLT application, or TS951IYLT equivalent, key selection criteria include rail-to-rail I/O swing at low supply voltage, latch-up immunity, ±1 kV HBM ESD rating, and thermal resistance of 250 °C/W in SOT23-5 for compact PCB layouts.
Technical Context
The TS951IYLT employs a BiCMOS process enabling rail-to-rail input common-mode range (VDD − 0.2 V to VCC + 0.2 V) and rail-to-rail output swing (2.8 V high-level / 0.25 V low-level at 3 V supply, RL = 600 Ω). Its 3 MHz GBP and 1 V/µs slew rate support medium-speed signal buffering without phase margin degradation (60° at unity gain).
It delivers 80 dB supply voltage rejection ratio and 50–80 dB common-mode rejection across temperature, with input offset voltage ≤8 mV and drift of only 2 µV/°C - enabling precision DC-coupled amplification in automotive sensor interfaces and DAC output stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 12 V - supports single-supply operation in 3 V microcontroller systems and 5 V industrial rails. |
| Gain Bandwidth Product | 3 MHz - enables stable unity-gain buffer configurations up to audio frequencies (20 kHz) with >45° phase margin. |
| Slew Rate | 1 V/µs - ensures <1% THD at 10 kHz for 4 Vpk-pk output into 10 kΩ load. |
| Input Offset Voltage | ≤8 mV (max, −40°C to +125°C) - allows direct coupling in low-gain sensor front-ends without nulling circuitry. |
| Supply Current per Amplifier | 0.9 mA at 3 V - extends battery life in portable medical devices and automotive body-control modules. |
| Output Voltage Swing | Rail-to-rail: VOL ≤ 250 mV, VOH ≥ 2.8 V at 3 V supply, RL = 600 Ω - maximizes dynamic range in low-voltage ADC driver applications. |
| ESD Rating (HBM) | ±1 kV - meets baseline automotive module robustness requirements per ISO 10605. |
Pinout & Package
TS951IYLT is supplied in a 5-pin SOT23-5 package (2.9 mm × 2.8 mm footprint, 1.45 mm height), optimized for space-constrained automotive and portable designs. Thermal resistance is 250 °C/W (junction-to-ambient), requiring minimal copper pour for thermal management in ambient temperatures up to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (−) | Differential input node; accepts signals within rail-to-rail common-mode range (VDD − 0.2 V to VCC + 0.2 V). |
| 2 | Non-inverting Input (+) | Differential input node; bias current ≤100 nA (max) minimizes error in high-impedance sensor interfaces. |
| 3 | Output | Capable of sourcing/sinking ≥10 mA short-circuit current; drives 600 Ω loads to within 200 mV of rails. |
| 4 | VCC (Positive Supply) | Primary power pin; supports 2.7–12 V operation; decoupling capacitor required within 5 mm for stability. |
| 5 | VDD (Ground / Negative Supply) | Reference return path; must be connected directly to system ground plane to maintain CMRR and PSRR performance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends usable input voltage to within 200 mV of either supply rail - eliminates level-shifting in single-supply DAC buffers. |
| Rail-to-rail output swing | Delivers full 2.8 V peak output from 3 V supply - increases SNR by 3.5 dB vs. conventional op-amps in headphone driver stages. |
| Latch-up immunity | Rated for 200 mA injection - prevents catastrophic failure during transient overvoltage events in automotive CAN/LIN node interfaces. |
| AEC-Q100 qualified (Grade 1) | Validated for −40°C to +125°C operation with PPAP documentation - enables use in engine control unit (ECU) signal conditioning without derating. |
| Low 0.9 mA supply current at 3 V | Reduces quiescent power to 2.7 mW - suitable for always-on vehicle occupancy sensors and tire pressure monitoring systems (TPMS). |
Applications
| Automotive Cabin Sensor Interface | Portable Medical Pulse Oximeter |
|---|---|
|
Use Scenario: Amplifying weak analog signals from MEMS-based cabin temperature and humidity sensors in head-unit control modules. IC Role / Device Role / Timing Role: Single-supply signal conditioner with rail-to-rail I/O, driving 12-bit SAR ADC inputs. Use Value: 80 dB PSRR rejects ignition noise; 2 µV/°C offset drift maintains calibration accuracy across vehicle thermal cycles. |
Use Scenario: Buffering and filtering photodiode current outputs in battery-powered pulse oximeters. IC Role / Device Role / Timing Role: Transimpedance amplifier stage with low input bias current (≤100 nA) and low noise (25 nV/√Hz). Use Value: 0.9 mA supply current extends single-CR2032 battery life beyond 72 hours of continuous operation. |
| Industrial 4–20 mA Loop Receiver | Smartphone Audio Line Driver |
|
Use Scenario: Converting 4–20 mA loop current to 0–3 V voltage for PLC analog input modules. IC Role / Device Role / Timing Role: Precision I-to-V converter with 6 mV max input offset and 80 dB CMRR. Use Value: Enables 0.1% full-scale accuracy without trimming; rail-to-rail output matches 3 V ADC reference range. |
Use Scenario: Driving stereo headphone outputs (32 Ω) from smartphone baseband processor DACs. IC Role / Device Role / Timing Role: Low-distortion (0.01% THD), rail-to-rail output line driver. Use Value: 1 V/µs slew rate supports 20 kHz audio bandwidth; 2.8 V output swing delivers >100 mW into 32 Ω at 3 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-channel rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS951ILT | Same silicon, non-automotive grade (−40°C to +85°C), K101 marking, no AEC-Q100 qualification. | Not approved for under-hood or safety-critical cabin modules; limited to consumer-grade portable electronics. | Select when cost sensitivity outweighs automotive qualification requirements and operating temperature stays below 85°C. |
| MCP6001T-E/OT | Lower GBP (1 MHz), higher input offset (1.5 mV typ), but lower supply current (0.6 µA typ) and wider temp range (−40°C to +125°C). | Insufficient bandwidth for audio line drivers; better suited for ultra-low-power sensor wake-up circuits. | Choose only for sub-100 kHz DC-coupled sensing where microamp quiescent current is mandatory. |
Compared with TS951ILT and MCP6001T-E/OT, TS951IYLT uniquely combines AEC-Q100 Grade 1 qualification, 3 MHz bandwidth, and rail-to-rail I/O in SOT23-5 - making it the only option for space-constrained automotive signal chains requiring both speed and reliability.
Availability
TS951IYLT is available at Aetrix Electronics and suitable for automotive cabin control modules, portable medical instrumentation, and industrial 4–20 mA loop receivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS951IYLT 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 TS95x family belongs to ST's precision analog portfolio, engineered specifically for rail-to-rail performance in low-voltage, battery-operated, and automotive-qualified applications - emphasizing robustness, low power, and ease of integration.
FAQ
Is TS951IYLT pin-compatible with TS951ILT?
Yes - both share identical SOT23-5 pinout (In−, In+, Output, VCC, VDD) and electrical specifications. The only differences are automotive qualification (AEC-Q100 Grade 1), extended temperature validation (−40°C to +125°C), and marking (K102 vs. K101). No PCB redesign is needed when upgrading from TS951ILT to TS951IYLT.
What is the maximum capacitive load the TS951IYLT can drive without instability?
The TS951IYLT remains stable with up to 100 pF capacitive load when configured as a unity-gain buffer (phase margin = 60°, gain margin = 10 dB). For loads >100 pF, a series resistor (≥10 Ω) between output and capacitance is required to maintain stability - verified in Figure 3 (gain/phase vs. frequency) and Table 3 of DS1256 Rev 13.
Does TS951IYLT support dual-supply operation?
Yes - though optimized for single-supply use, TS951IYLT operates with split supplies (e.g., ±2.5 V) as long as total VCC − VDD remains within 2.7 V to 12 V. Input common-mode range extends to VDD − 0.2 V, allowing inputs down to −2.3 V with −2.5 V rail, and output swings within 200 mV of either rail.
How does the 250 °C/W thermal resistance affect layout in automotive PCBs?
With 250 °C/W RthJA, dissipating 10 mW (typical at 3 V) raises junction temperature by 2.5°C above ambient. To stay within 125°C max Tj at 85°C ambient, no thermal pad or copper pour is strictly required - but ST recommends connecting pin 5 (VDD) to a minimum 25 mm² internal ground plane to ensure consistent PSRR and avoid localized heating near ECU connectors.
TS951IYLT 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:
- 1V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 35 nA
- Voltage - Input Offset:
- 6 mV
- Current - Supply:
- 950µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TS951IYLT FAQ
1.How can I place an order for TS951IYLT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS951IYLT 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 TS951IYLT reliable?
The price and inventory of TS951IYLT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS951IYLT is usually 5 days.
3.What payment methods are accepted for TS951IYLT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS951IYLT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS951IYLT?
TS951IYLT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS951IYLT 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 TS951IYLT?
For technical support, including TS951IYLT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS951IYLT requirements.
6.How does Aetrix verify that TS951IYLT is sourced from the original manufacturer or authorized distributors?
All TS951IYLT 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 TS951IYLT meets industry standards.
7.What is the process for return or replacement of TS951IYLT?
All TS951IYLT units undergo pre-shipment inspection (PSI). If there is an issue with TS951IYLT, 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 TS951IYLT part is unused and in its original packaging.
Return procedure for TS951IYLT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS951IYLT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
