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Texas Instruments TLC271CP
- Part No.:
- TLC271CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC271CP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,142
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Product details
Overview
TLC271CP 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), 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 TLC271CP datasheet, TLC271CP pinout, TLC271CP application, or TLC271CP equivalent, key selection considerations include its programmable bias modes for tradeoffs between power (50–3375 µW), ac performance (0.03–3.6 V/µs slew rate), noise (25–68 nV/√Hz), and unity-gain bandwidth (0.09–1.7 MHz) across 0°C to 70°C operation.
Technical Context
The TLC271CP implements a silicon-gate LinCMOS™ process enabling 10¹² Ω typical input impedance and sub-picoampere input bias current, with internal ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2. Its bias-select pin accepts three voltage levels (GND, midpoint, VDD) to configure high/medium/low operating modes without external components.
It supports single-supply operation from 3 V to 16 V over 0°C to 70°C, with common-mode input range extending 0.2 V below the negative rail. The device exhibits latch-up immunity and includes two offset null terminals (OFFSET N1/N2) for precision trimming in high-accuracy analog front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets baseline dc error in precision amplification stages |
| Slew Rate (high-bias) | 3.6 V/µs at VDD = 5 V - enables stable gain-of-100 amplification up to ~36 kHz |
| Supply Current (high-bias) | 1600 µA typical at 25°C - balances speed and power in battery-constrained designs |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-Z sources like piezoelectric sensors |
| Common-Mode Range | Extends 0.2 V below negative rail - supports true single-supply transducer interfacing |
| Output Swing | Includes negative rail - allows full-scale output near ground in 3.3 V or 5 V systems |
| ESD Rating | 2000 V HBM - reduces need for external protection in board-level ESD zones |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 0.3-inch width, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null input | Connects to potentiometer wiper for manual input offset trimming |
| 2 (IN–) | Inverting input | Differential input node with 10¹² Ω impedance and ±5 mA absolute max rating |
| 3 (IN+) | Non-inverting input | Differential input node; common-mode range extends below GND in C-suffix devices |
| 4 (GND) | Negative supply rail | Reference for single-supply operation; common-mode range includes this pin |
| 5 (BIAS SELECT) | Bias configuration control | Voltage level (GND = low, VDD/2 = medium, VDD = high) selects power/performance mode |
| 6 (VDD) | Positive supply rail | Accepts 3–16 V; internal regulation enables stable operation across wide supply range |
| 7 (OUT) | Amplifier output | Rail-to-rail capable; drives ≥10 kΩ load with <50 mV low-level saturation |
| 8 (OFFSET N2) | Offset null output | Completes nulling circuit with Pin 1; required for precision offset calibration |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select programming | Three user-configurable operating modes (high/medium/low) via single pin voltage - eliminates need for multiple op-amp SKUs |
| LinCMOS™ process | 10¹² Ω input impedance and pA-level input bias current - preserves signal integrity from high-impedance pH or thermocouple sensors |
| Rail-to-rail output | Swings to GND and within 0.2 V of VDD - maximizes dynamic range in 3.3 V microcontroller ADC interfaces |
| Offset voltage drift | 0.1 µV/month including first 30 days - ensures long-term calibration stability in unattended environmental monitors |
| Single-supply compatibility | Operates from 3 V to 16 V with input range extending below GND - simplifies power architecture in portable instrumentation |
Applications
| Industrial Sensor Signal Conditioning | Portable Battery-Powered Instrumentation |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from RTD or thermistor bridges in factory-floor temperature controllers. IC Role / Device Role / Timing Role: Precision dc-coupled gain stage with offset trimming capability and low drift. Use Value: 10 mV max VIO and 0.1 µV/month drift enable ±0.5°C accuracy over 12-month calibration cycles without recalibration. |
Use Scenario: Signal buffering and level-shifting for 3.3 V ADC inputs in handheld multimeters. IC Role / Device Role / Timing Role: Rail-to-rail output driver with programmable bias to extend battery life. Use Value: Low-bias mode draws only 50 µW - extends AA battery life to >18 months in sleep-wake measurement cycles. |
| Active Filter Design | Analog Front-End for Data Acquisition |
|
Use Scenario: 2nd-order Sallen-Key low-pass filter for anti-aliasing before sigma-delta ADCs. IC Role / Device Role / Timing Role: High-speed, low-noise gain block with 1.7 MHz unity-gain bandwidth. Use Value: 3.6 V/µs slew rate and 25 nV/√Hz noise support clean 100 kHz filter response with <0.01% THD. |
Use Scenario: Multiplexed sensor interface in PLC analog input modules with cold-junction compensation. IC Role / Device Role / Timing Role: Programmable-gain amplifier with offset nulling for multi-channel calibration. Use Value: OFFSET N1/N2 pins allow channel-specific trimming; 10¹² Ω input prevents crosstalk in 16-channel designs. |
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 same PDIP-8 package; identical bias-select architecture and 10 mV VIO grade | Reduces board space in dual-amplifier circuits (e.g., inverting + non-inverting paths), but shares supply and thermal environment | Select when needing two matched amplifiers with synchronized bias control and shared layout footprint |
| TLV2462CP | Rail-to-rail input/output, 600 µA supply current, no bias-select feature; 2.5 mV VIO max; SOIC-8 only | Lacks programmability but offers lower noise (22 nV/√Hz) and better ac specs - suited for fixed-performance, low-voltage (2.7 V) designs | Select when bias flexibility is unnecessary and rail-to-rail input is required for 0–VDD signal acquisition |
Compared with TLC272CP and TLV2462CP, the TLC271CP provides unique bias-select configurability in a single-channel PDIP-8 format, enabling optimized power/performance tradeoffs per stage - critical for mixed-signal systems where some channels demand speed while others prioritize ultra-low quiescent current.
Availability
TLC271CP is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable battery-powered instrumentation, active filter design, and analog front-end for data acquisition requiring stable component supply across extended product lifecycles.
Supply support for TLC271CP 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 50 years of op-amp innovation.
The TLC271CP belongs to TI's LinCMOS™ programmable op-amp family, designed specifically for applications demanding configurable power/performance tradeoffs in cost-sensitive industrial and instrumentation systems.
FAQ
What is the maximum supply voltage for the TLC271CP?
The TLC271CP supports an absolute maximum supply voltage of 18 V, with recommended operation from 3 V to 16 V across its 0°C to 70°C temperature range. Exceeding 18 V risks permanent damage per the absolute maximum ratings table in the SLOS090D datasheet. At 16 V, the device maintains full specification compliance including output swing and slew rate.
How does the BIAS SELECT pin configure operating modes on the TLC271CP?
The TLC271CP BIAS SELECT pin configures high/medium/low bias modes by applying GND (low), VDD/2 (medium), or VDD (high). In single-supply systems, a resistive divider generates the midpoint voltage; large-value resistors minimize current draw but require careful RC time constant design to avoid startup delay. Each mode alters power dissipation, slew rate, noise, and bandwidth as documented in Table 1 of the datasheet.
Can the TLC271CP operate from a single 3.3 V supply?
Yes, the TLC271CP is fully specified for single-supply operation down to 3 V at 0°C to 70°C. At 3.3 V, it delivers rail-to-rail output swing (0 V to ~3.1 V), common-mode input range from –0.2 V to ~3.1 V, and maintains 10 mV max input offset voltage. Slew rate drops to ~1.8 V/µs in high-bias mode, sufficient for ≤100 kHz signal conditioning.
What is the purpose of the OFFSET N1 and OFFSET N2 pins on the TLC271CP?
The TLC271CP uses OFFSET N1 (Pin 1) and OFFSET N2 (Pin 8) to connect an external 10-kΩ potentiometer for manual input offset voltage nulling. This calibration corrects initial VIO errors - critical in precision applications like weigh scales or medical sensors where 10 mV max VIO must be reduced to <100 µV. The potentiometer wiper connects to OFFSET N1, and both ends tie to OFFSET N2 and VDD/GND as shown in Figure 1 of the datasheet.
Does the TLC271CP support rail-to-rail input operation?
No, the TLC271CP does not support rail-to-rail input. Its common-mode input voltage range extends 0.2 V below the negative rail (GND) but only up to VDD – 1.5 V at 5 V supply - verified in the "Common-mode input voltage range" parameter tables for C-suffix devices. For true rail-to-rail input, consider TI's TLV246x or OPA344 families instead.
TLC271CP 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:
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC271CP FAQ
1.How can I place an order for TLC271CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271CP 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 TLC271CP reliable?
The price and inventory of TLC271CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271CP is usually 5 days.
3.What payment methods are accepted for TLC271CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271CP?
TLC271CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271CP 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 TLC271CP?
For technical support, including TLC271CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271CP requirements.
6.How does Aetrix verify that TLC271CP is sourced from the original manufacturer or authorized distributors?
All TLC271CP 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 TLC271CP meets industry standards.
7.What is the process for return or replacement of TLC271CP?
All TLC271CP units undergo pre-shipment inspection (PSI). If there is an issue with TLC271CP, 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 TLC271CP part is unused and in its original packaging.
Return procedure for TLC271CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC271CP Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902DR
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LM358P
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