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Diodes Incorporated TLV271CW5-7
- Part No.:
- TLV271CW5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV271CW5-7.pdf
- Description:
- IC CMOS 1 CIRCUIT SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:471,063
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Product details
Overview
TLV271CW5-7 from Diodes Incorporated is a single-channel CMOS rail-to-rail output operational amplifier in SOT25 package, designed for low-voltage, low-power sensor signal conditioning and battery-powered systems. It operates from 2.7 V to 16 V supply, delivers 2 MHz unity-gain bandwidth, 2.0 V/µs slew rate, and draws only 550 µA per channel at 5 V - enabling high-precision analog front-ends in Li-ion powered instrumentation.
For engineers reviewing the TLV271CW5-7 datasheet, TLV271CW5-7 pinout, TLV271CW5-7 application, or TLV271CW5-7 equivalent, key selection criteria include its 1 pA input bias current for high-impedance source interfacing, 35 nV/√Hz input voltage noise for clean signal amplification, rail-to-rail output swing down to 2.7 V supply, and commercial-grade (0°C to +70°C) temperature specification in compact SOT25 footprint.
Technical Context
The TLV271CW5-7 uses a CMOS input stage with 1 pA typical input bias current and 35 nV/√Hz input voltage noise, supporting high-impedance sensor interfaces such as thermistors and photodiodes. Its rail-to-rail output stage achieves 2.58 V high-level and 0.1 V low-level output voltage at 1 mA load under 2.7 V supply, ensuring full dynamic range utilization in low-voltage systems.
Internally compensated for unity-gain stability, it delivers 2 MHz bandwidth with 65° phase margin into 10 pF capacitive load and maintains 2.0 V/µs slew rate across –40°C to +125°C. The device is fully specified for single-supply (2.7–16 V) and split-supply (±1.35 V to ±8 V) operation, with PSRR of 80 dB and CMRR of 70 dB at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct interface with Li-ion cells (3.0–4.2 V), microcontroller I/O rails, and legacy 5 V/±5 V systems. |
| Unity-Gain Bandwidth | 2 MHz - enables stable amplification of audio-band and fast-sensor signals (e.g., piezoelectric transducers) without external compensation. |
| Slew Rate | 2.0 V/µs - ensures ≤2.9 µs settling to 0.1% for 1 V step, suitable for pulse amplification and active filtering up to ~100 kHz. |
| Input Bias Current | 1 pA - minimizes voltage error in high-Z circuits (e.g., pH electrodes, capacitive touch sensors), eliminating need for guard traces or bias resistors. |
| Input Voltage Noise | 35 nV/√Hz at 1 kHz - preserves SNR in precision DC-coupled gain stages where thermal noise dominates over resistor noise. |
| Rail-to-Rail Output | Swings within 100 mV of rails at 1 mA - maximizes ADC input range in 3.3 V or lower data acquisition systems without level-shifting circuitry. |
| Quiescent Current | 550 µA per channel - allows continuous operation in always-on sensor nodes with <1 µA sleep current budget when paired with enable control. |
Pinout & Package
SOT25 (5-pin small-outline transistor) package: 2.8 mm × 2.9 mm × 1.3 mm body, surface-mount, lead-free, RoHS-compliant. Thermal resistance θJA = 180°C/W on standard 1-in² copper pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connection (N/C) | Internally unconnected; must be left floating or tied to ground per layout best practice - no routing required. |
| 2 | Inverting input (IN−) | Differential input node accepting feedback network; high impedance (100 MΩ) enables stable gain-setting with MΩ-range resistors. |
| 3 | Non-inverting input (IN+) | High-impedance sensor interface point; 12 pF common-mode input capacitance limits RF susceptibility above 10 MHz. |
| 4 | Ground (GND) | Reference return for single-supply operation; requires low-inductance connection to PCB ground plane to minimize PSRR degradation. |
| 5 | Output (OUT) | Capable of sourcing/sinking ±100 mA peak; rail-to-rail swing supports direct driving of SAR ADC reference buffers or LED bias circuits. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale output from 100 mV above GND to 100 mV below VDD at 1 mA load - eliminates need for dual supplies in portable medical sensors. |
| Ultra-low input bias current | 1 pA maximum at +25°C - reduces offset drift in high-impedance transducer interfaces (e.g., electrochemical gas sensors) without external guarding. |
| Low-noise CMOS input stage | 35 nV/√Hz input voltage noise at 1 kHz - maintains >80 dB SNR in 100 mV full-scale 16-bit ADC front-ends with 10 kΩ source impedance. |
| Wide supply voltage range | Operates from 2.7 V to 16 V - compatible with single-cell Li-ion, two-cell alkaline, and industrial 12 V rails without LDO pre-regulation. |
| Industrial temperature grade option | TLV271IW5-7 variant rated –40°C to +125°C - qualified for automotive cabin ambient and motor-control feedback loops. |
Applications
| Portable Gas Sensors | Li-ion Battery Monitor IC Interface |
|---|---|
Use Scenario: Amplifying nanoamp-level current from electrochemical CO sensor using transimpedance configuration. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with ultra-low input bias current and rail-to-rail output to maximize dynamic range into 3.3 V ADC. Use Value: 1 pA input bias avoids >10 mV offset error across 10 MΩ feedback resistor, enabling sub-ppm gas detection resolution. | Use Scenario: Buffering cell voltage from battery management system (BMS) analog front-end before ADC sampling. IC Role / Device Role / Timing Role: Low-drift, low-noise voltage follower isolating high-impedance voltage divider from ADC input capacitance. Use Value: 35 nV/√Hz noise and 0.5 mV max input offset ensure <0.1% cell voltage measurement error over 0–4.2 V range at room temperature. |
| Wearable Heart Rate Monitor | Industrial Temperature Transmitter |
Use Scenario: Amplifying weak AC-coupled photoplethysmography (PPG) signal from green LED/photodiode pair. IC Role / Device Role / Timing Role: Low-power, low-noise instrumentation amplifier stage with 2 MHz bandwidth for pulse waveform fidelity. Use Value: 2.0 V/µs slew rate preserves 100 Hz pulse harmonics; 550 µA quiescent current extends wearable runtime beyond 7 days on coin cell. | Use Scenario: Conditioning 4–20 mA loop transmitter output using RTD or thermocouple signal conditioner. IC Role / Device Role / Timing Role: Rail-to-rail output buffer driving 250 Ω load in 4–20 mA current loop receiver stage. Use Value: Output swings to within 100 mV of 3.3 V rail at 20 mA load, ensuring full compliance with HART physical layer voltage margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-channel rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT (Microchip) | Lower bandwidth (1 MHz), higher input bias current (100 pA), same SOT23-5 package and 2.7–6 V supply range. | Less suitable for >100 kHz sensor signals; acceptable for DC-coupled temperature sensing with <100 kΩ source impedance. | Select when cost sensitivity outweighs bandwidth/noise requirements and supply is limited to ≤6 V. |
| LMV321IDBVR (TI) | Higher quiescent current (80 µA typ), lower slew rate (0.85 V/µs), but wider temp range (–40°C to +125°C) in same SOT23-5 footprint. | Better suited for high-temp industrial environments but sacrifices speed and noise performance in battery-powered designs. | Prefer for automotive under-hood or factory-floor applications where temperature robustness is primary over power efficiency. |
Compared with MCP6001T-E/OT and LMV321IDBVR, TLV271CW5-7 uniquely balances 2 MHz bandwidth, 1 pA input bias, and 550 µA supply current in commercial-grade SOT25 - making it optimal for portable instrumentation requiring both precision and energy efficiency.
Availability
TLV271CW5-7 is available at Aetrix Electronics and suitable for portable medical devices, battery-powered IoT sensors, and industrial 4–20 mA loop interfaces requiring stable component supply across production volumes and long-term design cycles.
Supply support for TLV271CW5-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for industrial, computing, and consumer markets.
The TLV27x series was developed to replace TLC27x op-amps in battery-constrained applications, delivering rail-to-rail output, extended low-voltage operation (down to 2.7 V), and industry-leading input bias current for sensor interface fidelity.
FAQ
Is TLV271CW5-7 unity-gain stable?
Yes, TLV271CW5-7 is internally compensated for unity-gain stability. It maintains ≥65° phase margin with 10 pF capacitive load and exhibits no oscillation in voltage-follower configuration per Figure 21–23 of DS35394. For loads >100 pF, a 20 Ω series resistor at the output is recommended to preserve stability.
What is the maximum capacitive load the TLV271CW5-7 can drive directly?
The TLV271CW5-7 is characterized for stable operation with up to 10 pF capacitive load. Driving >100 pF directly risks reduced phase margin and potential ringing; Diodes recommends inserting a 20 Ω isolation resistor between the output and capacitive load, as shown in Figure 28 of the datasheet, to restore stability.
Does TLV271CW5-7 support dual-supply operation?
Yes, TLV271CW5-7 supports dual-supply operation from ±1.35 V to ±8 V. The input common-mode range extends to within 1.35 V of either rail, and output swings rail-to-rail under split-supply conditions - verified in Recommended Operating Conditions table (page 4) and Electrical Characteristics (page 5).
How does input offset voltage drift affect accuracy in precision temperature sensing?
TLV271CW5-7 has 6 µV/°C typical offset drift. In a 100 kΩ bridge-based RTD circuit with 1 V excitation, this contributes ≤0.6 mV error over a 100°C span - equivalent to ~0.15°C measurement uncertainty. For sub-0.1°C accuracy, external calibration or chopper-stabilized alternatives are advised.
TLV271CW5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 1.9 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 550µA
- Current - Output / Channel:
- 8 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
TLV271CW5-7 FAQ
1.How can I place an order for TLV271CW5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV271CW5-7 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 TLV271CW5-7 reliable?
The price and inventory of TLV271CW5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV271CW5-7 is usually 5 days.
3.What payment methods are accepted for TLV271CW5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV271CW5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV271CW5-7?
TLV271CW5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV271CW5-7 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 TLV271CW5-7?
For technical support, including TLV271CW5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV271CW5-7 requirements.
6.How does Aetrix verify that TLV271CW5-7 is sourced from the original manufacturer or authorized distributors?
All TLV271CW5-7 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 TLV271CW5-7 meets industry standards.
7.What is the process for return or replacement of TLV271CW5-7?
All TLV271CW5-7 units undergo pre-shipment inspection (PSI). If there is an issue with TLV271CW5-7, 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 TLV271CW5-7 part is unused and in its original packaging.
Return procedure for TLV271CW5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV271CW5-7 Tags
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LM358DT
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