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Texas Instruments TLC271BCPSR
- Part No.:
- TLC271BCPSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC271BCPSR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,039
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Product details
Overview
TLC271BCPSR from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier with 2 mV max input offset voltage (25°C), bias-select functionality enabling high/medium/low power-performance tradeoffs, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V supply across 0°C to 70°C, features 10¹² Ω input impedance, and is used in precision sensor signal conditioning and battery-powered instrumentation.
For engineers reviewing the TLC271BCPSR datasheet, TLC271BCPSR pinout, TLC271BCPSR application, or TLC271BCPSR equivalent, key selection criteria include its programmable bias modes (affecting slew rate, noise, and power), guaranteed 2 mV VIO grade, PSOP-8 package compatibility, and single-supply operation with common-mode range extending below ground.
Technical Context
The TLC271BCPSR implements a silicon-gate LinCMOS™ process delivering stable input offset voltage drift (0.1 µV/month) and ultra-low input bias current (0.6 pA typ at 25°C). Its bias-select architecture uses an external voltage on the BIAS SELECT pin to configure internal current sources, directly controlling slew rate (3.6 V/µs high-bias), unity-gain bandwidth (1.7 MHz), and input noise (25 nV/√Hz).
This device supports true single-supply operation with common-mode input voltage range extending to –0.2 V (at VDD = 5 V) and output swing to GND. It includes ESD protection rated to 2000 V (MIL-STD-883C) and latch-up immunity, making it suitable for industrial transducer interfaces where robustness and low power are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 2 mV at 25°C - enables precision DC-coupled amplification without trimming in cost-sensitive systems |
| Supply Voltage Range | 3 V to 16 V - supports wide-input single-supply operation in portable and industrial rails |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-impedance sources like pH electrodes or piezoelectric sensors |
| Slew Rate (high-bias) | 3.6 V/µs at VDD = 5 V - sufficient for audio-band and medium-speed data acquisition |
| Input Noise Density | 25 nV/√Hz at 1 kHz - low-noise performance critical for microvolt-level signal amplification |
| Common-Mode Input Range | Extends to –0.2 V below GND (VDD = 5 V) - allows direct interfacing with bipolar signals in single-supply systems |
| Output Swing | Includes negative rail - delivers full dynamic range when driving ADCs or comparators referenced to GND |
Pinout & Package
Package: PSOP-8 (Plastic Small Outline Package, 8-pin, gull-wing leads, 0.65 mm pitch).
| 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; accepts signals within specified common-mode range |
| 3 (IN+) | Non-inverting input | Differential input node; high-impedance path for reference or sensor inputs |
| 4 (GND) | Ground reference | Primary return path for supply and signal currents; must be low-impedance |
| 5 (BIAS SELECT) | Bias mode control | Voltage level (GND = low, VDD/2 = medium, VDD = high) sets power/performance operating point |
| 6 (VDD) | Positive supply | Accepts 3 V to 16 V; decoupling capacitor required near pin for stability |
| 7 (OUT) | Amplifier output | Capable of sourcing/sinking ±30 mA; rail-to-rail swing to GND |
| 8 (OFFSET N2) | Offset null input | Second terminal for external offset nulling network; used with Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select programming | Selects among three discrete bias levels to optimize power (50–3375 µW) vs. ac performance (SR, BW, noise) |
| Rail-to-rail output | Drives to GND under load, maximizing usable dynamic range in single-supply data acquisition |
| Sub-picoampere input bias | 0.6 pA typical at 25°C - preserves signal integrity from ultra-high-Z sources like photodiodes |
| ESD protection | 2000 V HBM rating per MIL-STD-883C Method 3015.2 - enhances handling robustness in manufacturing |
| Offset voltage stability | 0.1 µV/month drift including first 30 days - reduces long-term calibration requirements in test equipment |
Applications
| Transducer Signal Conditioning | Precision Instrumentation |
|---|---|
Use Scenario: Amplifying low-level outputs from strain gauges, thermocouples, or capacitive humidity sensors in industrial monitoring nodes. IC Role / Device Role / Timing Role: Primary gain stage with programmable bias to balance noise floor and battery life. Use Value: 25 nV/√Hz noise and 2 mV VIO enable sub-millivolt resolution without chopper stabilization. | Use Scenario: Front-end amplification in handheld multimeters and portable oscilloscope probes. IC Role / Device Role / Timing Role: DC-coupled buffer and level-shifter before ADC sampling. Use Value: Rail-to-rail output and –0.2 V common-mode range allow full-scale use of 0–3.3 V ADC references. |
| Battery-Powered Data Loggers | Analog Sensor Interface Modules |
Use Scenario: Signal chain in remote environmental sensors powered by coin-cell or Li-SOCl₂ batteries. IC Role / Device Role / Timing Role: Low-power analog front-end with selectable bias mode for duty-cycled measurement. Use Value: 50 µW low-bias mode extends multi-year battery life while maintaining usable bandwidth (90 kHz BOM). | Use Scenario: Standardized analog interface board for connecting legacy 4–20 mA or 0–10 V industrial sensors to microcontrollers. IC Role / Device Role / Timing Role: Reconfigurable gain block supporting multiple sensor types via bias mode and external feedback. Use Value: 10¹² Ω input impedance prevents loading of high-Z sensor outputs; PSOP-8 footprint simplifies layout reuse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC271CP | Same 2 mV VIO grade and PSOP-8 package, but in plastic DIP (P) package instead of PSOP-8 | Through-hole assembly only; no surface-mount capability; higher thermal resistance | Choose TLC271CP only for legacy through-hole designs requiring identical electrical specs |
| TLC272BCDR | Dual-channel version in SOIC-8; shares same VIO, bias-select, and LinCMOS™ process but doubles channel count | Requires redesign for dual-amplifier functions (e.g., instrumentation amp topology); not pin-compatible | Select TLC272BCDR when space-constrained PCBs need two matched amplifiers with identical bias-programmability |
Compared with TLC271CP and TLC272BCDR, the TLC271BCPSR provides surface-mount compatibility in PSOP-8, optimized thermal performance for compact layouts, and single-channel flexibility-making it preferred for modern SMT-based sensor nodes where board area and manufacturability are critical.
Availability
TLC271BCPSR is available at Aetrix Electronics and suitable for precision sensor conditioning, battery-powered instrumentation, and analog front-end design requiring stable component supply and long-lifecycle support.
Supply support for TLC271BCPSR 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, embedded processing, and connectivity technologies with over 50 years of innovation in precision analog ICs.
The TLC271BCPSR belongs to TI's LinCMOS™ operational amplifier product line, engineered for applications demanding low power, high input impedance, and programmable performance-particularly in portable and industrial sensing systems.
FAQ
What is the maximum input offset voltage specification for TLC271BCPSR at 25°C?
The TLC271BCPSR has a maximum input offset voltage of 2 mV at 25°C, as specified in the "Available Options" table of the SLOS090D datasheet for the C-suffix (0°C to 70°C) and B-grade devices. This value is guaranteed across the full operating temperature range (0°C to 70°C) up to 3 mV, ensuring predictable DC accuracy in precision amplification stages.
How does the BIAS SELECT pin function on the TLC271BCPSR?
The BIAS SELECT pin on the TLC271BCPSR configures one of three internal bias levels: grounding selects low-bias mode (50 µW, 0.03 V/µs SR), connecting to VDD/2 selects medium-bias (525 µW, 0.4 V/µs), and tying to VDD selects high-bias (3375 µW, 3.6 V/µs). This allows dynamic optimization of power versus speed/noise without changing external components, and is fully supported in the TLC271BCPSR's PSOP-8 pinout.
Is the TLC271BCPSR compatible with single-supply operation?
Yes, the TLC271BCPSR supports true single-supply operation with a common-mode input voltage range extending to –0.2 V below GND (at VDD = 5 V) and output swing to the negative rail. This enables direct interfacing with ground-referenced sensors and full utilization of ADC input ranges in 3 V–16 V systems-confirmed in the "Recommended Operating Conditions" and "Electrical Characteristics" sections of the SLOS090D datasheet.
What package type is used for the TLC271BCPSR?
The TLC271BCPSR uses a PSOP-8 (Plastic Small Outline Package, 8-pin) with gull-wing leads and 0.65 mm pitch. This surface-mount package is distinct from the D (SOIC-8), P (PDIP-8), and JG (CDIP-8) variants listed in the datasheet's "Available Options" table, and is explicitly designated by the "PSR" suffix in the part number.
Does the TLC271BCPSR include ESD protection?
Yes, the TLC271BCPSR incorporates internal ESD-protection circuitry qualified to 2000 V per MIL-STD-883C, Method 3015.2. This protection guards against functional failure during handling and board assembly, and is documented in the "Device Features" and "Absolute Maximum Ratings" sections of the SLOS090D datasheet-applying specifically to the TLC271B-grade devices including the TLC271BCPSR.
TLC271BCPSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 390 µV
- 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-SO
TLC271BCPSR FAQ
1.How can I place an order for TLC271BCPSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271BCPSR 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 TLC271BCPSR reliable?
The price and inventory of TLC271BCPSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271BCPSR is usually 5 days.
3.What payment methods are accepted for TLC271BCPSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271BCPSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271BCPSR?
TLC271BCPSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271BCPSR 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 TLC271BCPSR?
For technical support, including TLC271BCPSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271BCPSR requirements.
6.How does Aetrix verify that TLC271BCPSR is sourced from the original manufacturer or authorized distributors?
All TLC271BCPSR 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 TLC271BCPSR meets industry standards.
7.What is the process for return or replacement of TLC271BCPSR?
All TLC271BCPSR units undergo pre-shipment inspection (PSI). If there is an issue with TLC271BCPSR, 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 TLC271BCPSR part is unused and in its original packaging.
Return procedure for TLC271BCPSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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