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Texas Instruments TLC271CPW
- Part No.:
- TLC271CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC271CPW.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:359
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Product details
Overview
TLC271CPW from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier in an 8-pin TSSOP package, featuring bias-select mode (high/medium/low), 10 mV max input offset voltage at 25°C, 3.6 V/µs slew rate in high-bias mode, and rail-to-rail output swing down to the negative rail - used in precision sensor signal conditioning for industrial temperature monitoring systems.
For engineers reviewing the TLC271CPW datasheet, TLC271CPW pinout, TLC271CPW application, or TLC271CPW equivalent, key selection criteria include its programmable bias architecture enabling trade-offs between power (50–3375 µW), bandwidth (0.09–1.7 MHz), noise (25–68 nV/√Hz), and input offset stability (0.1 µV/month drift), especially for battery-powered analog front-ends requiring single-supply operation from 3 V to 16 V.
Technical Context
The TLC271CPW implements a silicon-gate LinCMOS™ process delivering ultra-high input impedance (10¹² Ω typ) and sub-picoampere input bias current (0.6 pA typ), with internal ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2. Its bias-select pin enables dynamic configuration of three distinct operating modes via external voltage level.
In high-bias mode, it achieves 1.7 MHz unity-gain bandwidth and 3.6 V/µs slew rate; in low-bias mode, it draws only 50 µW while maintaining 480 V/mV large-signal gain and 0.09 MHz bandwidth - all without sacrificing input offset voltage drift (<0.1 µV/month) or common-mode range extending below the negative rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 16 V - supports single-supply operation in portable and remote sensing applications. |
| Input Offset Voltage (max) | 10 mV at 25°C - defines worst-case DC error in precision amplification stages. |
| Slew Rate (high-bias) | 3.6 V/µs - enables accurate reproduction of signals up to ~570 kHz at 1 Vpp. |
| Input Bias Current (typ) | 0.6 pA - minimizes loading error on high-impedance sources like thermistors or pH electrodes. |
| Common-Mode Input Range | Extends 0.2 V below negative rail - allows direct interfacing with ground-referenced sensors. |
| Output Voltage Swing | Includes negative rail - simplifies level-shifting and eliminates need for dual supplies. |
| Offset Drift | 0.1 µV/month - ensures long-term calibration stability in unattended instrumentation. |
Pinout & Package
Package: 8-pin TSSOP (PW), 3.0 mm × 4.4 mm, 0.65 mm pitch, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null input | Connects to external potentiometer for manual input offset trimming. |
| 2 (IN–) | Inverting input | Differential input node; high-impedance CMOS input with 10¹² Ω typical resistance. |
| 3 (IN+) | Non-inverting input | Differential input node; supports common-mode voltage down to –0.2 V (VDD = 5 V). |
| 4 (GND) | Negative supply / reference | Ground reference for single-supply operation; common return for bias-select network. |
| 5 (BIAS SELECT) | Bias mode control | Voltage level (GND = low, VDD/2 = medium, VDD = high) selects power/performance operating point. |
| 6 (VDD) | Positive supply | Accepts 3–16 V; internal regulation enables stable operation across wide voltage range. |
| 7 (OUT) | Amplifier output | Rail-to-rail capable; drives 10 kΩ load with <50 mV low-level saturation at 0°C–70°C. |
| 8 (OFFSET N2) | Offset null output | Second terminal for external offset nulling circuit; used with Pin 1 for trim adjustment. |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select programmability | Three user-configurable operating modes (high/medium/low) enable real-time optimization of power vs. speed/noise. |
| LinCMOS™ process technology | Delivers 10¹² Ω input impedance and sub-pA bias current - critical for high-Z sensor interfaces. |
| Rail-to-rail output swing | Drives to within 50 mV of GND and within 200 mV of VDD - maximizes dynamic range in single-supply systems. |
| ESD protection | 2000 V HBM rating per MIL-STD-883C - reduces handling sensitivity and field-failure risk. |
| Offset voltage stability | 0.1 µV/month drift including first 30 days - supports multi-year calibration intervals in deployed equipment. |
Applications
| Industrial Temperature Monitoring | Portable Gas Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying low-level output from platinum RTD or thermistor bridges in factory-floor environmental controllers. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with offset trimming capability. Use Value: 10 mV max VIO and 0.1 µV/month drift ensure measurement accuracy remains within ±0.1°C over 12 months without recalibration. | Use Scenario: Conditioning microamp-level current from electrochemical gas sensors in handheld air-quality meters. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier with programmable gain and bias. Use Value: 25 nV/√Hz input noise (high-bias) and 0.6 pA input bias minimize signal degradation in 100 kΩ–1 MΩ feedback networks. |
| Battery-Powered Data Loggers | Analog Front-End for Microcontroller ADCs |
Use Scenario: Signal conditioning for multi-channel analog inputs in solar-powered environmental data loggers. IC Role / Device Role / Timing Role: Low-quiescent-current buffer and level shifter preceding SAR ADC sampling. Use Value: 50 µW power draw (low-bias mode) extends 2xAA battery life to >5 years in sleep-active cycling applications. | Use Scenario: Driving the input of a 12-bit microcontroller ADC in smart home HVAC controllers. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full-scale utilization of ADC reference range. Use Value: Output swing to GND enables accurate digitization of 0–3.3 V sensor outputs without external level-shifting components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CPW | Dual-channel version in same PW package; identical bias-select architecture and specs per channel. | Reduces board space in multi-sensor systems but increases quiescent current by ~2× when both channels active. | Select when two matched amplifiers are required in same footprint; verify thermal derating for dual-channel dissipation. |
| TLV2461CPW | Single-supply rail-to-rail I/O op amp; no bias-select feature; 600 µA IQ vs. TLC271CPW's 50–1600 µA range. | Lacks programmable power/performance trade-off; optimized for fixed low-power, not ultra-low-drift applications. | Choose when consistent 600 µA operation suffices and offset drift <0.1 µV/month is not required. |
Compared with TLC272CPW and TLV2461CPW, the TLC271CPW uniquely provides selectable bias modes enabling design flexibility across power-constrained, noise-sensitive, and precision-stability requirements - making it irreplaceable where dynamic adaptation of ac performance versus quiescent power is essential.
Availability
TLC271CPW is available at Aetrix Electronics and suitable for industrial temperature monitoring, portable gas sensor signal chains, battery-powered data loggers, and microcontroller analog front-end designs requiring stable component supply across extended product lifecycles.
Supply support for TLC271CPW 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog ICs.
The TLC271CPW belongs to TI's LinCMOS™ programmable op amp product line, engineered for applications demanding ultra-low input bias current, exceptional offset stability, and configurable power-performance trade-offs in single-supply environments.
FAQ
What is the maximum supply voltage rating for the TLC271CPW?
The absolute maximum supply voltage for the TLC271CPW is 18 V, though the recommended operating range is 3 V to 16 V across its specified temperature range (0°C to 70°C for the 'C' suffix). Exceeding 16 V may compromise long-term reliability and is not guaranteed to meet electrical specifications per the SLOS090D datasheet.
How does the BIAS SELECT pin function on the TLC271CPW?
The BIAS SELECT pin on the TLC271CPW sets operating mode: grounded for low-bias (50 µW), connected to VDD/2 for medium-bias (525 µW), or tied to VDD for high-bias (3375 µW). This directly controls slew rate (0.03–3.6 V/µs), noise (68–25 nV/√Hz), and bandwidth (0.09–1.7 MHz), allowing dynamic adaptation of the TLC271CPW to system-level power and performance needs.
Can the TLC271CPW operate from a single 3.3-V supply?
Yes, the TLC271CPW is fully specified for 3-V operation and functions reliably from a 3.3-V single supply. Its common-mode input range extends to –0.2 V (below GND) and output swings to within 50 mV of GND, enabling full utilization of the 0–3.3 V range for interfacing with modern low-voltage microcontrollers and ADCs in the TLC271CPW design.
What is the purpose of the OFFSET N1 and OFFSET N2 pins on the TLC271CPW?
The OFFSET N1 and OFFSET N2 pins on the TLC271CPW provide access to the internal offset nulling circuitry, allowing external trimming of input offset voltage using a 10-kΩ potentiometer. This capability is critical for achieving sub-millivolt DC accuracy in precision instrumentation applications where the inherent 10 mV max VIO of the TLC271CPW must be actively reduced.
Is the TLC271CPW suitable for automotive applications?
No, the TLC271CPW is characterized for 0°C to 70°C operation (C-suffix) and is not qualified for automotive AEC-Q100 stress testing. For automotive use, TI offers the TLC271IP (I-suffix, –40°C to 85°C) or TLC271MP (M-suffix, –55°C to 125°C), which share the same core architecture but undergo extended temperature validation - the TLC271CPW itself is intended for commercial/industrial equipment only.
TLC271CPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 5.3V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 950µA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLC271CPW FAQ
1.How can I place an order for TLC271CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271CPW 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 TLC271CPW reliable?
The price and inventory of TLC271CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271CPW is usually 5 days.
3.What payment methods are accepted for TLC271CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271CPW?
TLC271CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271CPW 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 TLC271CPW?
For technical support, including TLC271CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271CPW requirements.
6.How does Aetrix verify that TLC271CPW is sourced from the original manufacturer or authorized distributors?
All TLC271CPW 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 TLC271CPW meets industry standards.
7.What is the process for return or replacement of TLC271CPW?
All TLC271CPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC271CPW, 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 TLC271CPW part is unused and in its original packaging.
Return procedure for TLC271CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC271CPW Tags
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LM358DR
Texas Instruments
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LM358P
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