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Texas Instruments TLC271CPWRG4
- Part No.:
- TLC271CPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC271CPWRG4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,103
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Product details
Overview
TLC271CPWRG4 from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier with bias-select functionality, 2 mV max input offset voltage (25°C), 3.6 V/µs slew rate (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 supports single-supply sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the TLC271CPWRG4 datasheet, TLC271CPWRG4 pinout, TLC271CPWRG4 application, or TLC271CPWRG4 equivalent, key selection criteria include its three-programmable bias modes (high/medium/low), ultra-low input bias current (0.6 pA typ), 10¹² Ω input impedance, and offset voltage drift of 0.1 µV/month - critical for precision DC-coupled amplification and long-term stability in portable medical and industrial monitoring systems.
Technical Context
The TLC271CPWRG4 implements a silicon-gate LinCMOS™ process enabling high input impedance and low input bias current while maintaining latch-up immunity and ESD protection up to 2000 V. Its bias-select pin allows dynamic configuration between high-bias (3.6 V/µs, 25 nV/√Hz), medium-bias (0.4 V/µs, 32 nV/√Hz), and low-bias (0.03 V/µs, 68 nV/√Hz) operating points without external component changes.
Input common-mode range extends below the negative rail (down to –0.2 V at VDD = 5 V), and output swings to within 50 mV of GND and 3.8 V of VDD (at VDD = 5 V, RL = 10 kΩ). The device features internal offset null terminals (OFFSET N1/N2) for fine-tuning and is characterized for operation across 0°C to 70°C per C-suffix specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 2 mV at 25°C - enables accurate DC amplification without frequent recalibration in 12-bit+ data acquisition |
| Slew Rate (high-bias) | 3.6 V/µs - supports >1 MHz small-signal bandwidth in unity-gain buffer configurations |
| Input Bias Current (typ) | 0.6 pA - minimizes voltage error in high-impedance source interfaces (e.g., pH electrodes, photodiode transimpedance) |
| Supply Voltage Range | 3 V to 16 V - compatible with single-cell Li-ion (3.0–4.2 V), dual AA (3 V), and industrial 12 V rails |
| Common-Mode Input Range | Extends to –0.2 V below GND - allows direct interfacing with ground-referenced sensors in single-supply systems |
| Output Voltage Swing | Within 50 mV of GND and 3.8 V of VDD (VDD = 5 V) - maximizes dynamic range in low-voltage ADC front-ends |
| Offset Drift | 0.1 µV/month - ensures long-term calibration stability in unattended remote monitoring equipment |
Pinout & Package
Package: TSSOP-8 (PW), 8-pin thin shrink small-outline package, 3.0 mm × 4.4 mm body, 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 referenced to GND or negative rail |
| 3 (IN+) | Non-inverting input | Differential input node; supports common-mode voltages down to –0.2 V |
| 4 (GND) | Ground reference | Power and signal return; required for bias-select voltage divider midpoint in single-supply mode |
| 5 (BIAS SELECT) | Bias mode control | Voltage level sets operating mode: GND = low-bias, VDD/2 = medium-bias, VDD = high-bias |
| 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; drives 10 kΩ loads with rail-to-rail swing |
| 8 (OFFSET N2) | Offset null output | Completes nulling circuit; connects to potentiometer end opposite OFFSET N1 |
Key Features
| Feature | Design Value |
|---|---|
| Programmable bias-select modes | Three user-configurable operating points trade ac performance (slew rate, bandwidth) against power (50–3375 µW) without changing PCB layout |
| Rail-to-rail output swing | Output reaches within 50 mV of GND and VDD - preserves full ADC input range in 3.3 V or 5 V systems |
| Ultra-high input impedance | 10¹² Ω typical - prevents loading of high-Z sources like piezoelectric sensors and electrochemical cells |
| Internal ESD protection | Withstands 2000 V per MIL-STD-883C Method 3015.2 - reduces need for external transient suppression in field-deployed equipment |
| Latch-up immunity | Designed-in robustness against current-induced failure during overvoltage or ESD events - improves system reliability in harsh environments |
Applications
| Portable Gas Sensor Signal Conditioning | Industrial RTD Bridge Amplifier |
|---|---|
Use Scenario: Amplifying low-level mV outputs from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier with low quiescent current and rail-to-rail output driving 12-bit SAR ADC. Use Value: Low 50 µW power in low-bias mode extends battery life beyond 5 years; 0.6 pA input bias avoids sensor polarization errors. | Use Scenario: Amplifying differential voltage from 3-wire Pt100 RTD bridges in factory-floor temperature controllers. IC Role / Device Role / Timing Role: High-input-impedance, low-drift gain stage with offset trimming capability before ADC digitization. Use Value: 2 mV max VIO and 0.1 µV/month drift ensure <±0.1°C measurement accuracy over 12-month calibration cycles. |
| Medical ECG Front-End Buffer | Battery-Powered Data Logger Analog Front-End |
Use Scenario: First-stage buffering of microvolt-level biopotential signals with high common-mode rejection. IC Role / Device Role / Timing Role: Non-inverting unity-gain buffer with extended common-mode range (to –0.2 V) enabling single-supply design. Use Value: Input common-mode range below GND eliminates need for split supplies or level-shifting circuitry, reducing BOM count and board area. | Use Scenario: Signal conditioning for multi-channel environmental sensors (humidity, pressure, light) logging to flash memory. IC Role / Device Role / Timing Role: Configurable gain stage where bias-select adapts bandwidth and noise to sensor type (e.g., high-bias for fast-response anemometers). Use Value: Single IC replaces multiple fixed-performance op-amps; reduces inventory SKUs and simplifies firmware-driven analog path reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CP | Dual-channel version in PDIP-8; identical bias-select architecture, same 2 mV VIO max, but higher IDD (1.3 mA vs 0.7 mA for TLC271CPWRG4 at VDD = 5 V) | Used where space permits dual op-amp integration and board real estate favors through-hole mounting | Select when dual-channel functionality is required and TSSOP assembly is not available in production line |
| TLV2461CDR | Single rail-to-rail output op-amp with 600 µA IDD, 0.65 V/µs slew rate, no bias-select feature; 2.5 mV VIO max; optimized for 2.7–6 V operation | Preferred for ultra-low-voltage (2.7 V) battery systems where programmability is unnecessary and lower cost is prioritized | Select when fixed low-power operation suffices and bias-select flexibility is not needed for system adaptation |
Compared with TLC272CP and TLV2461CDR, the TLC271CPWRG4 uniquely delivers programmable ac performance scaling in a space-constrained TSSOP-8 package, making it optimal for compact, multi-mode sensor nodes requiring long-life battery operation and field-upgradable signal chain behavior.
Availability
TLC271CPWRG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial temperature monitoring systems, and battery-powered environmental data loggers requiring stable component supply and long-term calibration integrity.
Supply support for TLC271CPWRG4 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLC271 product line was designed as a LinCMOS™ programmable op-amp family targeting precision, low-power, single-supply applications - especially where long-term offset stability, high input impedance, and flexible speed/power tradeoffs are essential.
FAQ
What is the maximum input offset voltage specification for TLC271CPWRG4 at 25°C?
The TLC271CPWRG4 has a maximum input offset voltage of 2 mV at 25°C, as specified for the TLC271C grade in the official Texas Instruments SLOS090D datasheet. This value applies specifically to the C-suffix commercial temperature range (0°C to 70°C) and is confirmed in the "Electrical Characteristics" tables under high-bias mode testing conditions.
How does the BIAS SELECT pin configure operating modes in TLC271CPWRG4?
The BIAS SELECT pin on the TLC271CPWRG4 sets one of three bias levels: connecting to GND selects low-bias mode (50 µW, 0.03 V/µs), to VDD/2 selects medium-bias (525 µW, 0.4 V/µs), and to VDD selects high-bias (3375 µW, 3.6 V/µs). This configuration is voltage-based and requires no external logic, enabling analog runtime adaptation of the TLC271CPWRG4's performance envelope.
Does TLC271CPWRG4 support rail-to-rail input common-mode range?
No, the TLC271CPWRG4 does not support rail-to-rail input common-mode range. Its common-mode input voltage range extends to –0.2 V below GND (at VDD = 5 V) and up to 3.5 V above GND - meaning it accepts inputs below the negative rail but not up to VDD. The output, however, swings rail-to-rail (within 50 mV of both rails).
What package type and dimensions does TLC271CPWRG4 use?
The TLC271CPWRG4 uses the TSSOP-8 (PW) package: 8-pin thin shrink small-outline package with 3.0 mm × 4.4 mm body size, 0.65 mm lead pitch, and 1.2 mm maximum height. This surface-mount package is RoHS-compliant and optimized for high-density PCB layouts in portable electronics.
Can TLC271CPWRG4 be used in single-supply sensor interface circuits?
Yes, the TLC271CPWRG4 is explicitly designed for single-supply operation. Its input common-mode range extends below the negative rail (to –0.2 V), and its output swings to within 50 mV of GND - enabling direct interfacing with ground-referenced sensors (e.g., thermocouples, strain gauges) without level-shifting circuitry. This capability is documented in the "Recommended Operating Conditions" and "Electrical Characteristics" sections of the TLC271CPWRG4 datasheet.
TLC271CPWRG4 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:
- 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:
- 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
TLC271CPWRG4 FAQ
1.How can I place an order for TLC271CPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271CPWRG4 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 TLC271CPWRG4 reliable?
The price and inventory of TLC271CPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271CPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC271CPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271CPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271CPWRG4?
TLC271CPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271CPWRG4 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 TLC271CPWRG4?
For technical support, including TLC271CPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271CPWRG4 requirements.
6.How does Aetrix verify that TLC271CPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC271CPWRG4 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 TLC271CPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC271CPWRG4?
All TLC271CPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC271CPWRG4, 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 TLC271CPWRG4 part is unused and in its original packaging.
Return procedure for TLC271CPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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