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STMicroelectronics TSV6191ILT
- Part No.:
- TSV6191ILT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TSV6191ILT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,072
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Product details
Overview
TSV6191ILT from STMicroelectronics is a rail-to-rail input/output CMOS operational amplifier optimized for ultra-low-power, low-voltage sensor signal conditioning. It delivers 450 kHz gain bandwidth product, 10 µA supply current at 5 V, 1.5–5.5 V operating range, 800 µV max input offset voltage (A version), and operates across –40 to +85 °C - ideal for battery-powered smoke detectors and proximity sensors.
For engineers reviewing the TSV6191ILT datasheet, TSV6191ILT pinout, TSV6191ILT application, or TSV6191ILT equivalent, key selection criteria include minimum stable gain (≥4), rail-to-rail output swing within 35 mV of rails, ultra-low 1 pA input bias current, and SOT23-5 package compatibility with space-constrained portable instrumentation designs.
Technical Context
The TSV6191ILT uses complementary PMOS/NMOS input stages to achieve rail-to-rail input common-mode range (VCC− −0.1 V to VCC+ +0.1 V) and rail-to-rail output swing (≤35 mV from either rail into 10 kΩ). Its unity-gain-stable architecture requires minimum closed-loop gain of 4 (or –3) to ensure ≥60° phase margin with 20 pF load.
It features 2 μV/°C input offset drift, 80 dB typical CMRR at 5 V, and 93 dB SVR - enabling precision DC-coupled amplification in single-supply medical and industrial sensor front-ends where supply rejection and thermal stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.5–5.5 V - supports direct operation from single-cell Li-ion (3.0–3.7 V), alkaline (1.5 V), or regulated 3.3/5 V rails without level-shifting. |
| Supply Current | 10.5 µA typ at 5 V - enables >1-year battery life in always-on smoke detector nodes powered by CR2032 coin cells. |
| Gain Bandwidth Product | 450 kHz typ - sufficient for anti-aliasing and low-frequency sensor filtering (e.g., piezoresistive bridge outputs up to 100 Hz). |
| Input Offset Voltage | 800 µV max (TSV6191A variant) - ensures ≤0.8 mV baseline error in 12-bit ADC interfaces with 2.5 V reference. |
| Input Bias Current | 1 pA typ - prevents significant voltage drop across high-impedance sources (e.g., pH electrodes, photodiode transimpedance feedback networks). |
| Output Swing | Within 35 mV of VCC and GND into 10 kΩ - preserves dynamic range in single-supply 1.8 V systems with 12-bit SAR ADCs. |
| Stable Gain Configuration | Minimum gain ≥4 (non-inverting) or –3 (inverting) - mandates external resistor network design to avoid oscillation in active filter stages. |
Pinout & Package
SOT23-5 (SC70-5 compatible) package: 2.9 mm × 1.6 mm × 1.1 mm body, 0.95 mm lead pitch, surface-mount, RoHS-compliant ECOPACK®2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VCC+ | Positive supply rail | Accepts 1.5–5.5 V; requires local 10 nF ceramic decoupling to minimize PSRR degradation at high frequencies. |
| 2 - In− | Inverting input | High-impedance node (1 pA bias); sensitive to PCB leakage - guard ring recommended for <100 MΩ source impedances. |
| 3 - In+ | Non-inverting input | Rail-to-rail common-mode range allows direct connection to resistive divider outputs or thermistor networks referenced to VCC/2. |
| 4 - VCC− | Negative supply rail (GND) | Must be low-impedance ground plane tie; shared return path with ADC reference improves noise immunity in mixed-signal layouts. |
| 5 - Out | Amplifier output | Capable of sourcing 58 mA / sinking 52 mA at 5 V - drives 10 kΩ loads directly but requires series R for capacitive loads >100 pF. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range extends 0.1 V beyond rails; output swings to within 35 mV - maximizes usable dynamic range in 1.8 V and 3.3 V systems. |
| Ultra-low input bias current | 1 pA typ - eliminates significant offset errors in high-Z sensor interfaces (e.g., electrochemical gas sensors, capacitive humidity elements). |
| Low power consumption | 10.5 µA at 5 V - reduces self-heating to <10 µW, critical for thermally stable measurements in sealed enclosures. |
| Stable at unity-gain forbidden | Requires ≥4 V/V non-inverting gain - prevents instability when used in buffered voltage references or precision gain blocks. |
| Wide temperature range | –40 to +85 °C operation - qualified for industrial and automotive cabin ambient environments without derating. |
Applications
| Smoke Detector Signal Chain | Proximity Sensor Front-End |
|---|---|
|
Use Scenario: Amplifying weak ionization chamber current (pA–nA) in battery-powered residential smoke alarms. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with rail-to-rail output driving comparator input. Use Value: 1 pA input bias avoids loading high-impedance chamber; 10 µA quiescent current extends CR2032 battery life beyond 2 years in standby mode. |
Use Scenario: Conditioning analog output from infrared proximity sensors in handheld consumer devices. IC Role / Device Role / Timing Role: Single-supply DC-coupled amplifier buffering photodiode or IR LED receiver signals. Use Value: Rail-to-rail input accepts near-ground-level sensor offsets; 450 kHz GBW supports fast response to hand-waving gestures without slew-induced distortion. |
| Portable Medical Pulse Oximeter | Low-Power Active Filter |
|
Use Scenario: Amplifying red/IR photodiode signals in wearable pulse oximeters powered by rechargeable LiPo cells. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage before 12-bit ADC sampling at 100 Hz. Use Value: 800 µV max Vio ensures <0.2% measurement error in SpO₂ calculation; 2 µV/°C drift minimizes recalibration frequency. |
Use Scenario: Implementing 2nd-order low-pass filtering for vibration sensor outputs in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Unity-gain stable op-amp configured as Sallen-Key topology with external RC components. Use Value: 450 kHz GBW enables cutoff frequencies up to 50 kHz while maintaining phase margin; 10 µA draw aligns with sub-100 µA system sleep budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-I/OT | Lower GBP (1 MHz), higher supply current (100 µA), no guaranteed min gain requirement. | Better for unity-gain buffers; unsuitable for high-precision DC-coupled sensor amps due to 2 mV Vio max. | Select when simplicity and unity-gain stability outweigh ultra-low power and offset requirements. |
| TLV9001IDBVR | Higher GBP (1 MHz), higher supply current (60 µA), rail-to-rail I/O, 0.3 mV Vio max. | Superior AC performance and offset; requires 1.8–5.5 V supply - not rated below 1.8 V like TSV6191ILT. | Select when operating at ≥1.8 V and needing lower offset or faster settling in active filters. |
Compared with MCP6001T-I/OT and TLV9001IDBVR, the TSV6191ILT uniquely combines sub-15 µA supply current, 1.5 V minimum supply, and guaranteed rail-to-rail I/O in SOT23-5 - making it the only choice for 1.5 V coin-cell-powered, precision analog front-ends requiring long-term stability.
Availability
TSV6191ILT is available at Aetrix Electronics and suitable for battery-powered applications, smoke detectors, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TSV6191ILT 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, MEMS, and power solutions for industrial, automotive, and consumer markets.
The TSV6191ILT belongs to ST's precision low-power op-amp product line, engineered specifically for energy-constrained sensor interface applications demanding rail-to-rail operation, nanopower consumption, and robust performance from 1.5 V supplies.
FAQ
What is the minimum stable gain configuration for TSV6191ILT?
The TSV6191ILT requires a minimum closed-loop gain of 4 V/V in non-inverting configuration or –3 V/V in inverting configuration to maintain ≥60° phase margin with 20 pF capacitive load. Using unity-gain or gains below this threshold risks oscillation, especially in active filter or buffer applications. This is verified per datasheet Figure 4 and Table 5 stability conditions.
Can TSV6191ILT operate from a 1.5 V supply?
Yes - the TSV6191ILT is fully specified and guaranteed to operate from 1.5 V to 5.5 V. Electrical characteristics including 450 kHz GBP, 10 µA supply current, and rail-to-rail output swing are validated at 1.5 V per Table 3 and Figures 2–3 in the official datasheet. It is one of few op-amps rated for reliable 1.5 V coin-cell operation.
What is the maximum capacitive load the TSV6191ILT can drive without compensation?
The TSV6191ILT remains stable with up to 20 pF capacitive load when configured at minimum gain (≥4 V/V) and using recommended PCB layout practices. Driving >20 pF (e.g., long traces or ADC input capacitance) requires isolation resistor (10–100 Ω) between output and load to prevent peaking or oscillation, as confirmed in Section 3.4 and Figure 9 of the datasheet.
Does TSV6191ILT have phase reversal under rail-to-rail input overdrive?
No - the TSV6191ILT is explicitly guaranteed against phase reversal across its full input common-mode range (VCC− −0.1 V to VCC+ +0.1 V), even during transitions between PMOS/NMOS input pairs. This is stated in Section 3.2 and verified in characterization curves (Figures 13–14), ensuring safe operation in sensor interfaces where inputs may transiently exceed rails.
TSV6191ILT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.08V/µs
- Gain Bandwidth Product:
- 450 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 10.5µA
- Current - Output / Channel:
- 63 mA
- Voltage - Supply Span (Min):
- 1.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TSV6191ILT FAQ
1.How can I place an order for TSV6191ILT through Aetrix?
Please submit a Request for Quotation (RFQ) for TSV6191ILT 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 TSV6191ILT reliable?
The price and inventory of TSV6191ILT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSV6191ILT is usually 5 days.
3.What payment methods are accepted for TSV6191ILT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSV6191ILT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSV6191ILT?
TSV6191ILT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSV6191ILT 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 TSV6191ILT?
For technical support, including TSV6191ILT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSV6191ILT requirements.
6.How does Aetrix verify that TSV6191ILT is sourced from the original manufacturer or authorized distributors?
All TSV6191ILT 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 TSV6191ILT meets industry standards.
7.What is the process for return or replacement of TSV6191ILT?
All TSV6191ILT units undergo pre-shipment inspection (PSI). If there is an issue with TSV6191ILT, 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 TSV6191ILT part is unused and in its original packaging.
Return procedure for TSV6191ILT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TSV6191ILT Tags
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LM358DT
STMicroelectronics
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