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STMicroelectronics TSL6401ILT
- Part No.:
- TSL6401ILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSL6401ILT.pdf
- Description:
- Linear IC's
- Quantity:
- Payment:
- Shipping:
Inventory:1,050
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Product details
Overview
TSL6401ILT from STMicroelectronics is a single-channel, rail-to-rail input/output operational amplifier optimized for high-bandwidth signal conditioning in low-voltage systems. It delivers 50 MHz gain bandwidth product, 30 V/µs slew rate, and operates from 2.2 V to 5.5 V supply - enabling precision analog front-ends in battery-powered medical sensors and industrial IoT nodes.
For engineers reviewing the TSL6401ILT datasheet, TSL6401ILT pinout, TSL6401ILT application, or TSL6401ILT equivalent, key selection criteria include its 1 pA input bias current, -40 °C to +125 °C extended temperature range, rail-to-rail output swing, and SOT23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TSL6401ILT uses a unity-gain-stable voltage-feedback architecture with a fully differential input stage supporting rail-to-rail common-mode input range (VCC− −0.1 V to VCC+ +0.1 V). Its 50 MHz GBP enables stable operation at AV = 1 without external compensation.
It features internal ESD protection (2 kV HBM), 95 dB open-loop gain, and 90 dB CMRR over full operating temperature, making it suitable for high-accuracy DC-coupled amplification where input offset drift (2 µV/°C) and supply rejection (100 dB SVR) directly impact measurement fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 50 MHz - supports closed-loop bandwidth up to ~45 MHz at AV = 1 with phase margin ≥50° |
| Slew Rate | 30 V/µs - enables clean 10 MHz sine-wave output at 10 Vpp without distortion |
| Input Offset Voltage | 4.5 mV typ. - introduces ≤0.45% error in 1 V full-scale 10-bit ADC interface |
| Input Bias Current | 1 pA typ. - allows use with >10 MΩ sensor sources without significant voltage drop |
| Supply Voltage Range | 2.2 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V) and 3.3 V/5 V logic domains |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive and industrial control environments |
| Output Voltage Swing | Rail-to-rail - delivers >99% of supply range at 10 kΩ load, minimizing headroom loss |
Pinout & Package
SOT23-5 surface-mount package with 1.27 mm pitch, 2.9 mm × 2.8 mm footprint, and thermal resistance Rth-JA = 250 °C/W - suited for compact, thermally isolated analog sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Amplifier output | Drives loads down to 10 kΩ while maintaining rail-to-rail swing and stability |
| 2 VCC− | Negative supply | Reference node for dual-supply operation; tied to GND in single-supply configurations |
| 3 IN+ | Non-inverting input | Accepts signals from VCC− −0.1 V to VCC+ +0.1 V - enables true single-supply sensor interfacing |
| 4 IN− | Inverting input | Supports precision feedback networks; matched to IN+ for low input offset |
| 5 VCC+ | Positive supply | Accepts 2.2–5.5 V; internal regulation ensures consistent biasing across voltage range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full dynamic range utilization in 3.3 V systems - no level-shifting required for ADC drivers |
| 50 MHz GBP | Permits high-speed active filtering (e.g., 2nd-order anti-aliasing at 5 MHz cutoff) without stability risk |
| 1 pA input bias current | Preserves signal integrity when amplifying high-impedance pH or photodiode sensors |
| Extended temperature range | Validated operation from -40 °C to +125 °C - eliminates derating in motor control feedback loops |
| Low 7.2 mA supply current | Supports always-on sensing nodes with <10 µA average current when duty-cycled |
Applications
| Medical Wearable Sensor Interface | Industrial Current Loop Receiver |
|---|---|
|
Use Scenario: Amplifying microvolt-level ECG signals from dry electrodes in ultra-low-power patch monitors. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in first-stage gain block before 12-bit SAR ADC sampling at 1 kHz. Use Value: 1 pA input bias avoids electrode polarization error; rail-to-rail output maximizes ADC utilization without external biasing. |
Use Scenario: Converting 4–20 mA loop current to 0–3.3 V for PLC analog input modules operating in factory environments. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with 250 Ω sense resistor and low-drift buffer stage. Use Value: 4.5 mV VOS contributes <0.14% full-scale error; 125 °C rating ensures reliability near power converters. |
| Battery-Powered Gas Detector | Automotive Cabin Air Quality Monitor |
|
Use Scenario: Signal amplification for electrochemical CO sensors with 100 nA–10 µA output currents in portable safety devices. IC Role / Device Role / Timing Role: Low-noise, low-power transimpedance amplifier driving 10-bit ADC in 3.3 V system powered by CR2032 coin cell. Use Value: 7.2 mA ICC enables >1-year battery life at 10 s readout interval; 15 nV/√Hz noise preserves ppm-level resolution. |
Use Scenario: Conditioning output from NDIR CO₂ sensors in HVAC control units mounted on vehicle dashboards. IC Role / Device Role / Timing Role: High-accuracy buffer and level shifter between sensor analog output and automotive-grade microcontroller ADC. Use Value: AEC-Q100 qualified variant (TSL6401IYLT) available; 100 dB SVR rejects alternator ripple noise in 12 V supply domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-bandwidth, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911ILT | Lower GBP (8 MHz), higher VOS (1.5 mV max), same SOT23-5 package | Better DC precision but insufficient bandwidth for >1 MHz signal chains | Select when offset and noise dominate over speed - e.g., precision instrumentation at <100 kHz |
| LMV321IDBVR | Higher supply current (110 µA), lower GBP (1 MHz), same pinout | Optimized for ultra-low-power, not high-speed - unsuitable for >100 kHz closed-loop designs | Choose only for sub-10 µA average current budgets where bandwidth is secondary |
Compared with TSV911ILT and LMV321IDBVR, the TSL6401ILT uniquely balances 50 MHz bandwidth, rail-to-rail operation, and 1 pA bias current in SOT23-5 - making it the only option among the three for high-fidelity, battery-operated sensor interfaces requiring both speed and input impedance integrity.
Availability
TSL6401ILT is available at Aetrix Electronics and suitable for medical wearables, industrial current-loop receivers, and automotive cabin air quality monitors requiring stable component supply across extended temperature and long production lifecycles.
Supply support for TSL6401ILT 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 microcontrollers, analog ICs, power management, and MEMS sensors for industrial, automotive, and consumer markets.
The TSL640x series belongs to ST's precision high-speed op amp product line, engineered specifically for cost-sensitive, battery-powered applications demanding rail-to-rail performance, wide temperature operation, and robust ESD tolerance without sacrificing bandwidth.
FAQ
Is the TSL6401ILT qualified for automotive applications?
Yes - the TSL6401ILT is rated for -40 °C to +125 °C operation and meets AEC-Q100 stress test requirements. Its automotive-grade variant (TSL6401IYLT) undergoes additional screening per AEC-Q001/Q002, including advanced ESD and HTOL testing, making it suitable for cabin air quality sensors and body control modules.
Can the TSL6401ILT drive capacitive loads directly?
No - the TSL6401ILT is not unity-gain stable into capacitive loads >100 pF. For driving ADC inputs or cables, a small isolation resistor (10–50 Ω) must be placed between the output and capacitance to maintain phase margin ≥50°, as confirmed in DS14311 Section 3.2 AC performance characterization.
What is the maximum allowable supply voltage for continuous operation?
The absolute maximum supply voltage is 6 V, but continuous operation must remain within 2.2 V to 5.5 V per Table 5. Exceeding 5.5 V risks parametric shift and accelerated aging - ST specifies 5 V as the production screening voltage, ensuring full-range functionality only within the rated operating window.
Does the TSL6401ILT support dual-supply operation?
Yes - the device supports symmetric dual supplies (e.g., ±2.5 V) or asymmetric configurations (e.g., VCC+ = 5 V, VCC− = -1.8 V), provided total supply voltage does not exceed 6 V and common-mode input range remains within VCC− −0.1 V to VCC+ +0.1 V, as defined in Table 5.
TSL6401ILT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 1
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 50 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSL6401ILT FAQ
1.How can I place an order for TSL6401ILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSL6401ILT 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 TSL6401ILT reliable?
The price and inventory of TSL6401ILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSL6401ILT is usually 5 days.
3.What payment methods are accepted for TSL6401ILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSL6401ILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSL6401ILT?
TSL6401ILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSL6401ILT 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 TSL6401ILT?
For technical support, including TSL6401ILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSL6401ILT requirements.
6.How does Aetrix verify that TSL6401ILT is sourced from the original manufacturer or authorized distributors?
All TSL6401ILT 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 TSL6401ILT meets industry standards.
7.What is the process for return or replacement of TSL6401ILT?
All TSL6401ILT units undergo pre-shipment inspection (PSI). If there is an issue with TSL6401ILT, 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 TSL6401ILT part is unused and in its original packaging.
Return procedure for TSL6401ILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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