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Texas Instruments TLC271CPWR
- Part No.:
- TLC271CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC271CPWR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,338
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Product details
Overview
TLC271CPWR 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. It operates from 3 V to 16 V supply over 0°C to 70°C and is used in battery-powered sensor signal conditioning where power/performance tradeoffs are critical.
For engineers reviewing the TLC271CPWR datasheet, TLC271CPWR pinout, TLC271CPWR application, or TLC271CPWR equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in single-supply transducer interfacing, and confirmed alternative options for design flexibility and supply continuity.
Technical Context
The TLC271CPWR implements a silicon-gate LinCMOS™ process enabling 10¹² Ω typical input impedance and sub-picoampere input bias current. Its programmable bias-select architecture allows dynamic configuration of ac performance versus quiescent power - selecting high-bias yields 3.6 V/µs slew rate and 25 nV/√Hz noise, while low-bias reduces supply current to 50 µW with 0.03 V/µs slew rate.
It supports true single-supply operation with common-mode input range extending below the negative rail (down to –0.2 V at VDD = 5 V), and features internal ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2. The device is latch-up immune and specified for stable operation with capacitive loads up to 20 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets worst-case dc error in precision gain stages without trimming |
| Supply Voltage Range | 3 V to 16 V - enables direct interface with 3.3 V, 5 V, and 12 V systems without regulation |
| Slew Rate (high-bias) | 3.6 V/µs - supports >100 kHz small-signal bandwidth in unity-gain buffer configurations |
| Input Bias Current (typ) | 0.6 pA at 25°C - preserves signal integrity in high-impedance pH or photodiode sensor front-ends |
| Common-Mode Input Range | Extends to –0.2 V below negative rail - allows ground-referenced inputs in single-supply designs |
| Output Voltage Swing | Includes negative rail - eliminates need for dual supplies in level-shifting and comparator-like applications |
| ESD Protection | 2000 V HBM - meets industrial handling requirements without external protection diodes |
Pinout & Package
Package: 8-pin TSSOP (PW), 3.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null input | Connects to external potentiometer wiper for manual input offset trimming |
| 2 (IN–) | Inverting input | Differential input node; high-impedance LinCMOS™ gate input |
| 3 (IN+) | Non-inverting input | Differential input node; supports common-mode voltage down to –0.2 V |
| 4 (GND) | Negative supply / reference | Return path for supply and signal; serves as common-mode reference in single-supply use |
| 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 V to 16 V; internal regulation not required |
| 7 (OUT) | Amplifier output | Capable of sourcing/sinking ±30 mA; swings to negative rail and within 1.2 V of VDD |
| 8 (OFFSET N2) | Offset null input | Second terminal of offset null network; completes trimming circuit with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select mode | Three user-configurable operating points (high/medium/low) enable dynamic optimization of speed, noise, and power for each stage |
| Rail-to-rail output | Output drives to GND and within 1.2 V of VDD - maximizes dynamic range in 3.3 V or 5 V single-supply systems |
| Ultra-low input bias current | 0.6 pA typical - avoids loading errors in megohm-range sensor networks and piezoelectric interfaces |
| Designed-in latch-up immunity | Robust against transient overvoltage and supply sequencing faults - no external current limiting required |
| LinCMOS™ process stability | 0.1 µV/month input offset drift - ensures long-term calibration stability in unattended monitoring equipment |
Applications
| Transducer Signal Conditioning | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Amplifying low-level mV outputs from strain gauges or thermopiles in industrial pressure sensors. IC Role / Device Role / Timing Role: Precision dc-coupled gain stage with offset trimming capability and rail-to-rail output for ADC driver. Use Value: 10 mV max VIO and 0.1 µV/month drift maintain measurement accuracy over 5+ years without recalibration. | Use Scenario: Front-end amplification and filtering of temperature/humidity sensor signals in portable environmental monitors. IC Role / Device Role / Timing Role: Low-power signal conditioner operating from coin-cell or Li-ion battery with sleep-mode bias selection. Use Value: Low-bias mode draws only 50 µW, extending battery life beyond 2 years in periodic-sampling deployments. |
| Active Filter Blocks | Analog Computing Circuits |
Use Scenario: 2nd-order Sallen-Key low-pass filter for anti-aliasing before SAR ADC in medical instrumentation. IC Role / Device Role / Timing Role: Unity-gain stable op-amp with 1.7 MHz GBW and 46° phase margin at CL = 20 pF. Use Value: High-bias mode provides 3.6 V/µs slew rate to preserve step response fidelity up to 100 kHz. | Use Scenario: Summing amplifier and integrator in analog PID controllers for HVAC actuators. IC Role / Device Role / Timing Role: High-input-impedance, low-drift building block for precision linear computation. Use Value: 10¹² Ω input impedance prevents loading of upstream resistor networks; 25 nV/√Hz noise maintains SNR in closed-loop feedback paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CP | Dual-channel version in PDIP-8; identical bias-select architecture and 10 mV VIO grade | Requires PCB redesign for dual-amplifier functions (e.g., instrumentation amp front-end) | Select when needing two matched programmable op-amps on one die to reduce board area and inter-channel mismatch |
| TLV2461CDR | Single, rail-to-rail I/O, fixed 250 µA quiescent current; no bias-select; 2.5 mV VIO max | Lacks programmability but offers lower offset and guaranteed rail-to-rail input | Choose when precise dc accuracy outweighs power adaptability - e.g., precision reference buffers where 2.5 mV VIO is mandatory |
Compared with TLC272CP and TLV2461CDR, the TLC271CPWR uniquely balances programmable power/performance scaling, ultra-low bias current, and offset-null capability - making it optimal for cost-sensitive, battery-constrained systems requiring long-term dc stability without trimming.
Availability
TLC271CPWR is available at Aetrix Electronics and suitable for transducer interfacing, battery-powered data loggers, active filter blocks, and analog computing circuits requiring stable component supply across industrial and embedded production cycles.
Supply support for TLC271CPWR 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 leader specializing in analog and embedded processing technologies, with decades of heritage in precision op-amp design and manufacturing.
The TLC271CPWR belongs to TI's LinCMOS™ programmable op-amp product line, engineered for applications demanding configurable power-performance tradeoffs in single-supply, low-drift, high-impedance signal chains.
FAQ
What is the maximum supply voltage rating for the TLC271CPWR?
The absolute maximum supply voltage for the TLC271CPWR is 18 V, though the recommended operating range is 3 V to 16 V across its full temperature specification (0°C to 70°C). Operation above 16 V risks exceeding internal junction limits and is not supported per the SLOS090D datasheet.
Does the TLC271CPWR support true rail-to-rail input operation?
No - the TLC271CPWR supports rail-to-rail *output* swing (to GND and within 1.2 V of VDD), but its common-mode input range extends only to –0.2 V below the negative rail and up to VDD – 1.5 V. It does not accept inputs at the positive rail, distinguishing it from modern rail-to-rail input op-amps.
How is bias mode selected on the TLC271CPWR?
Bias mode is selected by applying a defined voltage to the BIAS SELECT pin (Pin 5): GND for low-bias (50 µW), VDD/2 for medium-bias (525 µW), or VDD for high-bias (3375 µW). In single-supply systems, a resistive divider is required to generate the midpoint voltage, using high-value resistors (e.g., 1 MΩ) to minimize current draw.
Can the TLC271CPWR drive capacitive loads reliably?
Yes - the TLC271CPWR is characterized for stable operation with up to 20 pF capacitive load at unity gain, as confirmed in Figures 98–100 of the SLOS090D datasheet. Phase margin remains ≥43° under these conditions. For loads >20 pF, external isolation resistance (e.g., 10–100 Ω in series with the output) is recommended.
Is the TLC271CPWR pin-compatible with other variants like TLC271BCPWR?
Yes - all TLC271x variants (including TLC271CPWR, TLC271ACPWR, and TLC271BCPWR) share identical 8-pin TSSOP (PW) packaging and pinout. Differences lie solely in input offset voltage grade (10 mV / 5 mV / 2 mV) and temperature range (C-suffix = 0°C to 70°C), not mechanical or electrical pin function.
TLC271CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TLC271CPWR FAQ
1.How can I place an order for TLC271CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271CPWR 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 TLC271CPWR reliable?
The price and inventory of TLC271CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271CPWR is usually 5 days.
3.What payment methods are accepted for TLC271CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271CPWR?
TLC271CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271CPWR 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 TLC271CPWR?
For technical support, including TLC271CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271CPWR requirements.
6.How does Aetrix verify that TLC271CPWR is sourced from the original manufacturer or authorized distributors?
All TLC271CPWR 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 TLC271CPWR meets industry standards.
7.What is the process for return or replacement of TLC271CPWR?
All TLC271CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC271CPWR, 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 TLC271CPWR part is unused and in its original packaging.
Return procedure for TLC271CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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