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Texas Instruments TLC272AIP
- Part No.:
- TLC272AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC272AIP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,676
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Product details
Overview
TLC272AIP from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 5 mV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C–70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.
For engineers reviewing the TLC272AIP datasheet, TLC272AIP pinout, TLC272AIP application, or TLC272AIP equivalent, this page provides verified electrical specifications, package mapping to PDIP-8, real-world design context for single-supply biasing and noise-sensitive circuits, and two validated alternative parts with documented parameter and application differences.
Technical Context
The TLC272AIP uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (<60 pA typical at 25°C) and stable input offset voltage drift (0.3 μV/°C from 25°C to 70°C). Its input stage supports common-mode voltage down to –0.1 V (at VDD = 5 V), enabling true ground-referenced operation without level-shifting circuitry.
It integrates ESD protection and latch-up immunity, and its output stage drives 10 kΩ loads while maintaining >65 dB CMRR and >65 dB PSRR across temperature - making it suitable for precision DC-coupled amplification where supply and common-mode rejection are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | 5 mV max at 25°C - enables accurate low-gain amplification without trimming in cost-sensitive instrumentation. |
| Input voltage noise | 10.8 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor signals with ≥50 kΩ source impedance. |
| Unity-gain bandwidth | 4.5 MHz - sufficient for anti-aliasing filters, active RC filters, and moderate-speed signal conditioning up to ~100 kHz. |
| Slew rate | 0.5 V/μs - limits full-power bandwidth to ~80 kHz at 10 Vpp, appropriate for DC–audio-frequency applications. |
| Supply voltage range | 3 V to 16 V (0°C–70°C) - compatible with single-cell Li-ion, 5 V logic rails, and 12 V industrial supplies without regulation. |
| Common-mode input range | Extends to –0.1 V below negative rail at VDD = 5 V - allows direct interfacing with grounded sensors and transducers. |
| Output voltage swing | Includes negative rail (0 V) with 50 mV low-level output - simplifies single-supply level-setting and eliminates need for negative bias. |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 9.81 mm × 9.43 mm body size, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | High-impedance node (≥10¹² Ω) accepting differential signal; requires guard ring in PCB layout for low-bias-current stability. |
| 2 | Non-inverting input (Amplifier A) | Same high-impedance characteristics as Pin 1; used for reference biasing or sensor excitation in single-supply configurations. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; swings to negative rail (0 V) under load - enables rail-to-rail output in unipolar systems. |
| 4 | Negative supply (V–) | Connected to ground in single-supply use; must be decoupled with 0.1 μF ceramic capacitor near pin for noise immunity. |
| 5 | Non-inverting input (Amplifier B) | Independent input for second channel; shares same bias current and offset specs as Amplifier A - supports dual-channel signal paths. |
| 6 | Inverting input (Amplifier B) | Matches Pin 1 electrically; usable for differential pair configuration or independent signal conditioning path. |
| 7 | Output (Amplifier B) | Functionally identical to Pin 3; allows simultaneous processing of two analog signals without cross-talk in shared supply domains. |
| 8 | Positive supply (V+) | Accepts 3–16 V DC; requires local 0.1 μF + 10 μF parallel decoupling to suppress supply ripple affecting CMRR and PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range includes ground and output swings to negative rail - eliminates need for split supplies in portable and industrial sensors. |
| Ultra-low input bias current | <60 pA typical at 25°C - enables use with high-impedance sources (e.g., pH electrodes, piezoelectric sensors) without significant error. |
| Low input offset voltage drift | 0.3 μV/°C over 25°C–70°C - ensures stable DC gain in temperature-varying environments like HVAC control and motor feedback loops. |
| ESD-protection circuitry | Integrated protection per JEDEC JS-001 - withstands ≥2 kV HBM, reducing risk of field failure during handling and assembly. |
| Latch-up immunity | Designed-in robustness against transient-induced latch-up - critical for reliability in noisy industrial power supply monitoring circuits. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level outputs from thermocouples, strain gauges, or RTDs in factory automation PLC modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ground-referenced input and rail-to-rail output for ADC driver interface. Use Value: 5 mV max VIO and 0.3 μV/°C drift ensure <±0.1% gain error over operating temperature without calibration. |
Use Scenario: Front-end amplification of ECG electrode signals in handheld patient monitors powered by 3.3 V or 5 V batteries. IC Role / Device Role / Timing Role: Low-noise, low-power dual op-amp providing differential amplification and baseline stabilization. Use Value: 10.8 nV/√Hz noise and <60 pA input bias preserve microvolt-level biopotential integrity with minimal power draw. |
| Automotive Cabin Environment Sensing | Test & Measurement Equipment |
Use Scenario: Signal conditioning for humidity and CO₂ sensors in automotive climate control systems operating from 5 V supply. IC Role / Device Role / Timing Role: Single-supply buffer and filter stage interfacing resistive sensor bridges to SAR ADCs. Use Value: Common-mode input extending below ground allows direct bridge excitation without level-shifters, reducing BOM count. |
Use Scenario: Active filtering and signal scaling in benchtop multimeters and data acquisition modules requiring stable DC accuracy. IC Role / Device Role / Timing Role: Dual-channel precision amplifier supporting simultaneous voltage/current measurement paths. Use Value: Matched dual architecture and 65+ dB CMRR enable accurate ratiometric measurements despite supply ripple and EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC272CDR | SOIC-8 package; identical electrical specs but surface-mount; 5 mV VIO max, same noise and bandwidth. | Requires PCB re-layout for SMT assembly; better thermal performance and smaller footprint than PDIP. | Select when automated assembly, space constraints, or thermal management outweigh through-hole serviceability needs. |
| TLV272IDR | Lower supply voltage (2.7 V min), lower quiescent current (1.8 mA vs 3.2 mA), 2 mV VIO max - tighter initial offset but reduced drive capability. | Better suited for ultra-low-power battery devices; not recommended for 10+ mA load or 16 V operation. | Choose for energy-constrained IoT nodes where 2.7–5.5 V operation and sub-2 mV offset are prioritized over voltage range and output drive. |
Compared with TLC272AIP, TLC272CDR offers identical precision in SOIC-8 for modern SMT lines, while TLV272IDR trades voltage range and output current for lower power and tighter offset - making TLC272AIP optimal for legacy through-hole designs needing 3–16 V flexibility and robust load driving.
Availability
TLC272AIP is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, automotive cabin environment sensing, and test & measurement equipment requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLC272AIP 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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs for industrial, automotive, and personal electronics markets.
The TLC27xx family was designed to deliver BiFET-level precision and speed using CMOS technology - targeting cost-sensitive, single-supply applications where low power, high input impedance, and rail-to-rail output are essential.
FAQ
What is the maximum input offset voltage specification for TLC272AIP at 25°C?
The TLC272AIP has a maximum input offset voltage of 5 mV at 25°C, as specified in the Electrical Characteristics table for TLC272AC grade under VDD = 5 V conditions. This value is guaranteed across the full commercial temperature range (0°C to 70°C), with a worst-case drift of 0.3 μV/°C between 25°C and 70°C. The TLC272AIP is part of the TLC272A grade, which is distinct from the standard TLC272C (10 mV max) and high-precision TLC277C (500 μV max).
Does TLC272AIP support true single-supply operation with inputs referenced to ground?
Yes, the TLC272AIP supports true single-supply operation with inputs referenced to ground. Its common-mode input voltage range extends to –0.1 V below the negative rail (ground) at VDD = 5 V, and its output swings fully to the negative rail (0 V). This allows direct connection of grounded sensors and eliminates the need for external level-shifting circuitry - a key design advantage confirmed in Section 6.1.1 of the datasheet.
What is the typical input voltage noise density of TLC272AIP and at what frequency is it measured?
The TLC272AIP has a typical input voltage noise density of 10.8 nV/√Hz, measured at 1 kHz with RS = 20 Ω, as stated in Section 4.7 Operating Characteristics. This value is consistent across the TLC272A grade and reflects the device's suitability for low-noise amplification of high-impedance sources - particularly advantageous compared to bipolar op-amps when source impedances exceed 50 kΩ.
Which package type does TLC272AIP use, and what are its mechanical dimensions?
The TLC272AIP uses the PDIP-8 (Plastic Dual In-line Package) with a nominal body size of 9.81 mm × 9.43 mm, including leads. This through-hole package is explicitly listed in the Device Information table for TLC272A under "P (PDIP, 8)". The "I" suffix denotes the commercial temperature range (0°C to 70°C), and the "P" suffix confirms the PDIP packaging - distinguishing it from SOIC (D), SOP (PS), or TSSOP (PW) variants.
Can unused amplifier sections in TLC272AIP be left floating, or must they be configured?
Unused amplifier sections in TLC272AIP must not be left floating. Per Section 6.1.2 of the datasheet, TI recommends connecting unused amplifiers as grounded unity-gain followers (i.e., non-inverting input tied to ground, output connected to inverting input) to prevent possible oscillation and ensure stable operation. Leaving inputs unconnected risks instability due to high input impedance and parasitic coupling.
TLC272AIP 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:
- CMOS
- Number of Circuits:
- 2
- 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:
- 1.4mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC272AIP FAQ
1.How can I place an order for TLC272AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272AIP 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 TLC272AIP reliable?
The price and inventory of TLC272AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272AIP is usually 5 days.
3.What payment methods are accepted for TLC272AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272AIP?
TLC272AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272AIP 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 TLC272AIP?
For technical support, including TLC272AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272AIP requirements.
6.How does Aetrix verify that TLC272AIP is sourced from the original manufacturer or authorized distributors?
All TLC272AIP 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 TLC272AIP meets industry standards.
7.What is the process for return or replacement of TLC272AIP?
All TLC272AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLC272AIP, 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 TLC272AIP part is unused and in its original packaging.
Return procedure for TLC272AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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