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Texas Instruments TLC271BCPS
- Part No.:
- TLC271BCPS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC271BCPS.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:690
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Product details
Overview
TLC271BCPS from Texas Instruments is a programmable low-power LinCMOS™ operational amplifier with 2 mV max input offset voltage (25°C), bias-select functionality for tradeoff between speed and power, and rail-to-rail output swing down to 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 TLC271BCPS datasheet, TLC271BCPS pinout, TLC271BCPS application, or TLC271BCPS equivalent, key selection criteria include its three-bias-mode programmability (high/medium/low), input offset voltage grade (2 mV), temperature range (0°C to 70°C), SOIC-8 package, and LinCMOS™ process advantages over bipolar or BiFET op-amps.
Technical Context
The TLC271BCPS implements a silicon-gate LinCMOS™ architecture enabling high input impedance (10¹² Ω typ), ultra-low input bias current (0.6 pA typ at 25°C), and stable offset voltage drift (0.1 µV/month). Its bias-select pin allows dynamic configuration of power dissipation (50–3375 µW) and ac performance (slew rate: 0.03–3.6 V/µs; unity-gain bandwidth: 0.09–1.7 MHz).
It supports single-supply operation with common-mode input voltage extending below the negative rail (–0.2 V at VDD = 5 V), rail-to-rail output swing, and built-in ESD protection (2000 V per MIL-STD-883C). The device is characterized for 0°C to 70°C operation and specified for supply voltages from 3 V to 16 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max 2 mV at 25°C - enables precision dc-coupled amplification without external trimming |
| Supply Voltage Range | 3 V to 16 V - supports single-supply battery operation (e.g., 3.3 V, 5 V, 9 V, 12 V systems) |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-impedance sources like piezoelectric sensors |
| Slew Rate (High Bias) | 3.6 V/µs at VDD = 5 V - sufficient for audio-band and medium-speed signal conditioning |
| Unity-Gain Bandwidth | 1.7 MHz (high bias, VDD = 5 V) - supports stable closed-loop gain ≥1 up to ~1 MHz |
| Input Offset Drift | 1.8 µV/°C (25°C to 70°C) - ensures stable dc accuracy over commercial temperature range |
| ESD Rating | 2000 V HBM - provides robust handling during PCB assembly and system integration |
Pinout & Package
Package: SOIC-8 (PS suffix), 150 mil width, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OFFSET N1) | Offset null terminal 1 | Connects to external potentiometer wiper for manual input offset trimming |
| 2 (IN–) | Inverting input | Differential input node; accepts signals within common-mode range (–0.2 V to VDD – 1.5 V) |
| 3 (IN+) | Non-inverting input | Differential input node; same common-mode range as IN– |
| 4 (GND) | Negative supply / ground reference | Return path for supply current and signal reference; supports single-supply operation |
| 5 (BIAS SELECT) | Bias mode control input | Voltage level selects high/medium/low bias: GND = high, VDD/2 = medium, VDD = low |
| 6 (VDD) | Positive supply | Accepts 3 V to 16 V; powers internal LinCMOS™ circuitry and output stage |
| 7 (OUT) | Amplifier output | Rail-to-rail capable; drives loads ≥10 kΩ with full swing from GND to VDD – 0.2 V |
| 8 (OFFSET N2) | Offset null terminal 2 | Completes offset null network with OFFSET N1 and external resistor/potentiometer |
Key Features
| Feature | Design Value |
|---|---|
| Bias-select programmability | Three user-configurable operating modes (high/medium/low) enable optimization of power vs. bandwidth/slew rate per application |
| LinCMOS™ process technology | Delivers 10¹² Ω input impedance and sub-pA input bias current - critical for high-source-impedance transducer interfaces |
| Rail-to-rail output swing | Output reaches within 200 mV of GND and within 200 mV of VDD - maximizes dynamic range in single-supply systems |
| Extended common-mode input range | Inputs operate down to –0.2 V below GND - supports sensing referenced below ground (e.g., current-sense shunts) |
| Integrated ESD protection | Withstands 2000 V HBM - reduces need for external protection in cost-sensitive industrial and consumer designs |
Applications
| Transducer Signal Conditioning | Battery-Powered Instrumentation |
|---|---|
Use Scenario: Amplifying low-level output from strain gauges, thermopiles, or piezoelectric sensors in industrial monitoring systems. IC Role / Device Role / Timing Role: Precision dc-coupled amplifier with offset trim capability and ultra-high input impedance to prevent signal source loading. Use Value: 2 mV max VIO and 1.8 µV/°C drift ensure stable measurement accuracy across 0°C–70°C without recalibration. | Use Scenario: Front-end amplification in portable multimeters, handheld gas detectors, or wireless sensor nodes. IC Role / Device Role / Timing Role: Low-power, single-supply op-amp enabling >1-year battery life while maintaining rail-to-rail output swing. Use Value: 50 µW low-bias mode power consumption extends runtime; 3 V minimum supply supports alkaline or Li-ion battery discharge profiles. |
| Active Filter Stages | Analog Sensor Interface IC |
Use Scenario: Implementing 2nd-order Sallen-Key or multiple-feedback filters in data acquisition front-ends. IC Role / Device Role / Timing Role: Unity-gain-stable voltage follower or gain stage with 1.7 MHz bandwidth (high bias) and 46° phase margin. Use Value: Programmable bias allows tradeoff: high bias for filter stability at 100 kHz, low bias for quiescent power reduction in standby mode. | Use Scenario: Core amplification block inside integrated analog front-ends for pressure, humidity, or ambient light sensors. IC Role / Device Role / Timing Role: Configurable gain stage with offset null pins enabling factory calibration and long-term drift compensation. Use Value: Dedicated OFFSET N1/N2 pins allow <10 µV post-calibration offset; LinCMOS™ process ensures minimal drift over product lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272BCD | Dual-channel version in SOIC-8; identical VIO (2 mV), bias-select, and LinCMOS™ specs per channel | Used where space-constrained dual-amplifier functions (e.g., differential receiver + reference buffer) are required | Select when needing two matched amplifiers on one die to reduce board area and inter-channel mismatch |
| TLV2462CDR | Rail-to-rail I/O, 600 µA supply current (vs. 675–1600 µA high-bias TLC271BCPS), no bias-select, 2.5 V to 6 V supply only | Targeted at ultra-low-voltage (e.g., 3.3 V) portable apps where programmable bias is unnecessary | Choose for fixed low-power, rail-to-rail I/O at 3.3 V; avoid if >6 V supply or bias flexibility is needed |
Compared with TLC272BCD and TLV2462CDR, the TLC271BCPS uniquely offers single-channel programmable bias, 3–16 V operation, and factory-trimmed 2 mV offset - making it optimal for cost-sensitive, wide-supply, precision analog stages requiring configurability.
Availability
TLC271BCPS is available at Aetrix Electronics and suitable for transducer interfacing, battery-powered instrumentation, active filter design, and analog sensor interface applications requiring stable component supply and long-term parametric consistency.
Supply support for TLC271BCPS 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 family belongs to TI's LinCMOS™ precision op-amp product line, designed specifically for applications demanding high input impedance, low power, and stable dc performance in commercial-temperature environments.
FAQ
What is the maximum input offset voltage specification for the TLC271BCPS at 25°C?
The TLC271BCPS has a maximum input offset voltage of 2 mV at 25°C, as specified in the "Available Options" table for C-suffix devices with B-grade offset. This value is guaranteed across the 0°C to 70°C operating range, with typical drift of 1.8 µV/°C.
How does the BIAS SELECT pin configure operating modes on the TLC271BCPS?
The BIAS SELECT pin on the TLC271BCPS sets operating mode by voltage level: GND selects high bias (3.6 V/µs slew rate), VDD/2 selects medium bias (0.4 V/µs), and VDD selects low bias (0.03 V/µs). This allows real-time tradeoff between speed and power (50–3375 µW) without changing hardware.
Can the TLC271BCPS operate from a single 3.3-V supply?
Yes, the TLC271BCPS supports single-supply operation from 3 V to 16 V. At 3.3 V, it maintains rail-to-rail output swing (GND to ~3.1 V), common-mode input down to –0.2 V, and functional bias-select operation - making it suitable for modern low-voltage embedded systems.
Does the TLC271BCPS require external components for offset nulling?
Yes, the TLC271BCPS provides dedicated OFFSET N1 and OFFSET N2 pins for external nulling. A 10-kΩ potentiometer connected between these pins, with wiper to VDD or GND depending on polarity, enables adjustment of input offset voltage to <10 µV in final calibration.
What package type and footprint does the TLC271BCPS use?
The TLC271BCPS uses an 8-pin SOIC (Small Outline Integrated Circuit) package with PS suffix, 150-mil body width, and standard JEDEC MS-012AC outline. It is compatible with automated SMT placement and reflow processes, and tape-and-reel packaging is available (TLC271BCPSR).
TLC271BCPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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:
- 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
TLC271BCPS FAQ
1.How can I place an order for TLC271BCPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC271BCPS 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 TLC271BCPS reliable?
The price and inventory of TLC271BCPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC271BCPS is usually 5 days.
3.What payment methods are accepted for TLC271BCPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC271BCPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC271BCPS?
TLC271BCPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC271BCPS 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 TLC271BCPS?
For technical support, including TLC271BCPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC271BCPS requirements.
6.How does Aetrix verify that TLC271BCPS is sourced from the original manufacturer or authorized distributors?
All TLC271BCPS 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 TLC271BCPS meets industry standards.
7.What is the process for return or replacement of TLC271BCPS?
All TLC271BCPS units undergo pre-shipment inspection (PSI). If there is an issue with TLC271BCPS, 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 TLC271BCPS part is unused and in its original packaging.
Return procedure for TLC271BCPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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