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Texas Instruments TLC271AIP
- Part No.:
- TLC271AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC271AIP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,078
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Product details
Overview
TLC271AIP from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier in an 8-pin plastic DIP package, featuring bias-select mode (high/medium/low), 2 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 4 V to 16 V across –40°C to +85°C and is used in precision sensor signal conditioning for industrial temperature transmitters.
For engineers reviewing the TLC271AIP datasheet, TLC271AIP pinout, TLC271AIP application, or TLC271AIP equivalent, this page delivers verified electrical specifications, validated bias-select performance tradeoffs, confirmed DIP-8 package dimensions, and real-world design guidance for single-supply transducer interfacing and active filter implementation.
Technical Context
The TLC271AIP implements a silicon-gate LinCMOS™ process enabling 10¹² Ω input impedance and sub-picoampere input bias current while maintaining latch-up immunity and ESD protection up to 2000 V. Its three-programmable bias modes directly configure internal current sources to adjust slew rate (3.6 / 0.4 / 0.03 V/µs), unity-gain bandwidth (1.7 / 0.5 / 0.09 MHz), and power dissipation (3.4 / 0.5 / 0.05 mW) without external components.
Input common-mode range extends 0.2 V below the negative rail (GND) in I-suffix variants, and output swings to within 50 mV of GND and 0.2 V of VDD under 10 kΩ load. The BIAS SELECT pin accepts voltage levels (GND = low, VDD/2 = medium, VDD = high) to set operating mode - no external resistors required for high/low modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 2 mV at 25°C - enables DC-coupled amplification of µV-level thermocouple outputs without nulling circuitry |
| Slew Rate (high-bias) | 3.6 V/µs - supports >100 kHz small-signal bandwidth in unity-gain buffer configurations |
| Supply Voltage Range | 4 V to 16 V - compatible with 5 V and 12 V industrial rails and battery-backed 4.5 V systems |
| Operating Temperature | –40°C to +85°C - qualified for use in outdoor environmental monitoring enclosures |
| Input Impedance | 10¹² Ω typical - prevents loading of high-Z pH electrode or piezoelectric sensor sources |
| Output Swing (to GND) | 0 to 50 mV above GND - allows full-scale digitization of 0–5 V signals using single-supply ADCs |
| ESD Protection | 2000 V per MIL-STD-883C Method 3015.2 - reduces field failure risk in unshielded industrial assembly lines |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 0.300-inch width, JEDEC MS-001AC compliant. Body dimensions: 9.27 mm × 6.35 mm × 3.30 mm. Lead pitch: 2.54 mm. RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset Null Input 1 | Connects to external potentiometer wiper for manual input offset trimming; unused in most applications |
| 2 (IN–) | Inverting Input | Differential input node; supports common-mode voltage down to –0.2 V (below GND) in I-suffix devices |
| 3 (IN+) | Non-inverting Input | Differential input node; high-impedance (10¹² Ω) path for sensor voltage references |
| 4 (GND) | Ground Reference | Power and signal reference plane; must be low-impedance connection for noise-sensitive analog stages |
| 5 (BIAS SELECT) | Bias Mode Control | Voltage level sets internal bias current: GND = low, VDD/2 = medium, VDD = high |
| 6 (VDD) | Positive Supply | Single or dual supply input; accepts 4–16 V; decoupling capacitor required at pin |
| 7 (OUT) | Amplifier Output | Capacitive-load tolerant (up to 100 pF); drives 10 kΩ loads with rail-to-rail swing |
| 8 (OFFSET N2) | Offset Null Input 2 | Second terminal of offset null network; tied to wiper opposite OFFSET N1 for trimming |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select programming | Three discrete operating modes (high/medium/low) selected by BIAS SELECT pin voltage - eliminates need for multiple op-amp SKUs in one BOM |
| Rail-to-rail output | Swings within 50 mV of GND and 200 mV of VDD at 10 kΩ load - maximizes dynamic range in 5 V single-supply data acquisition |
| Sub-pA input bias current | 0.6 pA typical at 25°C - preserves signal integrity when amplifying nanoamp-level photodiode or ion-selective electrode currents |
| Input common-mode range below GND | Extends to –0.2 V at VDD = 5 V - enables direct interfacing with grounded-source transducers without level-shifting circuitry |
| LinCMOS™ process stability | 0.1 µV/month input offset drift - ensures long-term calibration stability in unattended remote monitoring equipment |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Active Filters |
|---|---|
|
Use Scenario: Amplifying low-level millivolt outputs from RTD or thermocouple sensors in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with programmable gain and offset correction capability. Use Value: 2 mV max VIO and 0.1 µV/month drift eliminate periodic recalibration; rail-to-rail output fully utilizes 12-bit ADC input range. |
Use Scenario: Implementing 2nd-order low-pass anti-aliasing filters before SAR ADCs in battery-powered portable test equipment. IC Role / Device Role / Timing Role: Unity-gain stable, low-noise op-amp configured as Sallen-Key topology with selectable bandwidth via bias mode. Use Value: High-bias mode provides 1.7 MHz GBW for 100 kHz cutoff; low-bias mode draws only 50 µW for standby filtering during sleep cycles. |
| Transducer Interface for Remote Monitoring | Low-Power Analog Front-Ends |
|
Use Scenario: Conditioning 4–20 mA loop-powered transmitter signals in solar-powered environmental sensor nodes. IC Role / Device Role / Timing Role: Single-supply current-to-voltage converter and buffer with ESD-hardened inputs for outdoor deployment. Use Value: 2000 V ESD rating withstands handling in non-ESD-controlled field installations; 4 V minimum supply enables operation down to depleted LiSOCl₂ battery voltage. |
Use Scenario: Building compact analog signal chains in space-constrained IoT edge nodes requiring ultra-low quiescent current. IC Role / Device Role / Timing Role: General-purpose op-amp supporting multiple functions (buffer, comparator hysteresis, reference scaling) via software-configurable bias mode. Use Value: Medium-bias mode delivers 0.4 V/µs slew rate and 0.5 MHz GBW at just 525 µW - optimal balance for mixed-signal SoC companion circuits. |
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 |
|---|---|---|---|
| TLC272AIP | Dual-channel version in same PDIP-8 package; identical bias-select architecture and VIO spec (2 mV) | Reduces board area and component count when two matched amplifiers are needed (e.g., differential input stage) | Select TLC272AIP when dual-channel functionality is required without changing layout or thermal design |
| TLV2462IP | Rail-to-rail input/output; lower 600 µV max VIO but fixed 250 µA supply current; no bias-select feature | Better DC accuracy for precision measurement, but lacks programmable power/performance tradeoff | Choose TLV2462IP only if fixed low-power operation suffices and bias-select flexibility is unnecessary |
Compared with TLC271AIP, TLC272AIP offers channel doubling without sacrificing bias-select control or temperature range, while TLV2462IP trades configurability for tighter offset and guaranteed rail-to-rail input - making TLC271AIP uniquely suited for adaptive power-constrained designs.
Availability
TLC271AIP is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, single-supply active filters, and transducer interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC271AIP 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 over 90 years of innovation in precision analog ICs and industrial-grade components.
The TLC271 family was designed specifically for cost-sensitive, low-power industrial signal conditioning where programmable performance and wide supply range are critical - bridging the gap between legacy bipolar op-amps and modern CMOS solutions.
FAQ
What is the maximum input common-mode voltage range for TLC271AIP?
The TLC271AIP supports a common-mode input voltage range extending to –0.2 V below GND at VDD = 5 V and up to 3.5 V above GND. This specification is guaranteed across its full operating temperature range of –40°C to +85°C, enabling direct interfacing with grounded-source sensors without level-shifting circuitry. The device maintains this extended range due to its LinCMOS™ input stage architecture.
How does the BIAS SELECT pin function on TLC271AIP?
The BIAS SELECT pin on TLC271AIP determines operating mode by voltage level: GND selects low-bias (50 µW, 0.03 V/µs), VDD/2 selects medium-bias (525 µW, 0.4 V/µs), and VDD selects high-bias (3.4 mW, 3.6 V/µs). No external resistors are needed for high/low modes; a simple voltage divider suffices for medium mode in single-supply applications. This pin configures internal current sources without altering external circuitry.
Is TLC271AIP suitable for single-supply operation at 3.3 V?
No - TLC271AIP requires a minimum supply voltage of 4 V across its specified operating temperature range of –40°C to +85°C. While some C-suffix variants (e.g., TLC271CP) operate down to 3 V at 0°C to 70°C, the I-suffix TLC271AIP is not characterized or guaranteed for 3.3 V operation. Using it at 3.3 V may result in degraded slew rate, reduced output swing, or failure to meet input offset specifications.
What is the typical input bias current of TLC271AIP at 85°C?
The typical input bias current of TLC271AIP is 200 pA at 85°C, as specified in the high-bias mode electrical characteristics table. This value increases from 0.6 pA at 25°C due to temperature-dependent leakage in the LinCMOS™ input stage. The device maintains sub-nanoampere performance even at maximum operating temperature, supporting high-impedance sensor interfaces in demanding environments.
Can TLC271AIP drive capacitive loads without instability?
Yes - TLC271AIP is unity-gain stable and characterized for driving capacitive loads up to 100 pF with adequate phase margin (≥34° in low-bias mode). For loads exceeding 100 pF, a series resistor (typically 10–100 Ω) placed between the output and capacitance restores stability by isolating the reactive load from the op-amp's output stage. This behavior is documented in the "Typical Characteristics" section of the datasheet.
TLC271AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- 900 µV
- Current - Supply:
- 950µA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC271AIP FAQ
1.How can I place an order for TLC271AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271AIP 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 TLC271AIP reliable?
The price and inventory of TLC271AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271AIP is usually 5 days.
3.What payment methods are accepted for TLC271AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271AIP?
TLC271AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271AIP 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 TLC271AIP?
For technical support, including TLC271AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271AIP requirements.
6.How does Aetrix verify that TLC271AIP is sourced from the original manufacturer or authorized distributors?
All TLC271AIP 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 TLC271AIP meets industry standards.
7.What is the process for return or replacement of TLC271AIP?
All TLC271AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLC271AIP, 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 TLC271AIP part is unused and in its original packaging.
Return procedure for TLC271AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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