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Texas Instruments TLC272CPG4
- Part No.:
- TLC272CPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC272CPG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,862
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Product details
Overview
TLC272CPG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (C-grade), 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 to 70°C and delivers 0.5 V/μs slew rate with 4.5 MHz unity-gain bandwidth - enabling accurate signal conditioning in low-power sensor front-ends and industrial analog interfaces.
For engineers reviewing the TLC272CPG4 datasheet, TLC272CPG4 pinout, TLC272CPG4 application, or TLC272CPG4 equivalent, this page provides verified electrical parameters, package-specific pin functions, real-world use cases in single-supply systems, and two validated alternative parts with documented functional and application-level differences.
Technical Context
The TLC272CPG4 uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω), sub-60 pA typical input bias current, and low offset voltage drift (0.3 μV/°C). Its input stage supports common-mode voltage down to the negative rail, and its output stage drives to within 50 mV of ground under load - critical for true single-supply signal acquisition.
It integrates ESD protection circuitry and latch-up immunity, and is characterized across supply voltages (3–16 V) and temperatures (0°C to 70°C) with guaranteed performance in both AC-coupled and DC-coupled configurations - including unity-gain stable operation with 20 pF capacitive loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max (C-grade, 25°C); enables ≤0.2% gain error in 5 V full-scale instrumentation amplifiers without trimming. |
| Slew Rate | 0.5 V/μs (unity gain, 25°C); supports ≤100 kHz small-signal step response in active filters and transducer interfaces. |
| Unity-Gain Bandwidth | 4.5 MHz (25°C); sufficient for closed-loop gain ≥10 up to 450 kHz with stable phase margin (60°). |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz; dominates total noise in high-Z sensor circuits (e.g., piezoelectric, pH electrodes) above 10 kΩ source impedance. |
| Supply Current (dual) | 1.12–3.2 mA (25°C, 5 V); allows battery-powered operation >1 year on 2000 mAh Li-ion with duty-cycled sampling. |
| Common-Mode Input Range | Extends to –0.1 V (25°C, 5 V); permits direct interfacing to 0 V-referenced sensors without level-shifting circuitry. |
| Output Voltage Swing | 0–4.95 V (25°C, RL = 10 kΩ, 5 V supply); delivers full dynamic range into ADC drivers and comparator reference buffers. |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package), 9.81 mm × 9.43 mm, through-hole mounting. RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output; capable of sourcing/sinking ±30 mA; swings to within 50 mV of GND and VDD. |
| 2 | Inverting Input A | High-impedance (≥10¹² Ω) differential input; accepts signals down to –0.1 V relative to GND. |
| 3 | Non-Inverting Input A | Identical impedance and voltage range as Pin 2; used for positive feedback or reference biasing. |
| 4 | GND | Analog ground reference; must be low-impedance and isolated from digital return paths. |
| 5 | Non-Inverting Input B | Independent second amplifier input; shares same CMVR and bias current specs as Pins 2–3. |
| 6 | Inverting Input B | Second amplifier inverting input; functionally identical to Pin 2 but electrically isolated. |
| 7 | Output B | Amplifier B output; fully independent of Output A; same drive capability and swing limits. |
| 8 | VDD | Positive supply rail; supports 3–16 V operation; requires local 0.1 μF ceramic bypass to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range includes GND and output swings to GND - eliminates need for split supplies in portable data loggers and 3.3 V/5 V microcontroller analog subsystems. |
| Ultra-low input bias current | ≤60 pA typical (25°C); enables use of >10 MΩ feedback networks in charge-amplifier configurations for piezoelectric sensors without significant drift. |
| Rail-to-rail output | Drives within 50 mV of GND and VDD - maximizes ADC utilization in 12-bit+ systems without external level-shifting. |
| Low-noise CMOS architecture | 10.8 nV/√Hz input voltage noise + negligible current noise - superior SNR vs bipolar op-amps when interfacing high-impedance sources (>50 kΩ). |
| ESD-protected inputs | Integrated circuitry withstands ≥2 kV HBM - reduces need for external TVS diodes in industrial control I/O modules. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying low-level outputs from strain gauges, thermistors, or RTDs in factory-floor PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset compensation and anti-alias filtering before SAR ADC sampling. Use Value: 10 mV max VIO and 0.3 μV/°C drift ensure <±0.5°C accuracy over 0–70°C ambient without calibration. |
Use Scenario: Front-end amplification of ECG electrode signals in handheld patient monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-noise, low-power instrumentation amplifier core with single-supply rail-to-rail output driving 12-bit ADC. Use Value: 10.8 nV/√Hz noise and 1.12 mA supply current enable >8-hour runtime on CR2032 while maintaining diagnostic-grade SNR. |
| Automotive Cabin Environment Monitoring | Smart Home Air Quality Sensors |
|
Use Scenario: Signal conditioning for CO₂, humidity, and VOC sensors in automotive HVAC control units operating from 5 V battery rail. IC Role / Device Role / Timing Role: Dual-channel buffer and filter driver for multi-sensor fusion, rejecting engine-bay conducted noise via high CMRR (65 dB min). Use Value: Guaranteed 65–80 dB CMRR and PSRR (65–120 dB) suppress 12 V supply ripple and ignition transients without additional filtering. |
Use Scenario: Analog front-end for PM2.5 laser scattering sensors and electrochemical gas detectors in battery-operated smart thermostats. IC Role / Device Role / Timing Role: Dual op-amp implementing transimpedance conversion and baseline correction in ultra-low-power sleep/wake cycles. Use Value: Sub-60 pA input bias current prevents baseline drift in nanoampere-range photodiode and gas sensor currents during 30-second measurement bursts. |
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 |
|---|---|---|---|
| TLV2462IDR | Lower VIO (2 mV max), higher quiescent current (550 µA per amp), rail-to-rail I/O, 6.4 MHz GBW. | Better DC accuracy but 2× higher supply current; suited for battery-constrained designs needing tighter offset. | Select TLV2462IDR when VIO < 2 mV is mandatory and supply headroom allows 1.1 mA total quiescent draw. |
| LMV358IDR | Higher VIO (7 mV max), lower cost, 1 MHz GBW, rail-to-rail output only, 150 µA per amp. | Lower performance envelope; suitable for non-critical signal buffering where power is primary constraint. | Choose LMV358IDR for cost-sensitive consumer IoT nodes where 12-bit ADC linearity is acceptable with 7 mV offset. |
Compared with TLC272CPG4, TLV2462IDR trades higher precision and bandwidth for increased supply current, while LMV358IDR offers lower cost and power at reduced DC accuracy and speed - making TLC272CPG4 the optimal balance for industrial-grade single-supply analog signal chains requiring proven reliability and wide supply flexibility.
Availability
TLC272CPG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and automotive cabin monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC272CPG4 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 and embedded processing technologies, with decades of heritage in precision op-amp design and manufacturing.
The TLC27xx family was engineered for cost-effective, high-accuracy analog signal conditioning in single-supply environments - targeting industrial automation, test equipment, and legacy-compatible upgrades where BiFET performance was previously required.
FAQ
What is the maximum supply voltage rating for TLC272CPG4?
The absolute maximum supply voltage for TLC272CPG4 is 18 V, but the recommended operating range is 3 V to 16 V across 0°C to 70°C ambient. Operation at 16 V maximizes dynamic range and output swing, while 3 V enables compatibility with low-voltage logic rails. Exceeding 18 V risks permanent damage per TI's Absolute Maximum Ratings table.
Does TLC272CPG4 support true rail-to-rail input operation?
TLC272CPG4 does not support rail-to-rail input - its common-mode input voltage range extends to –0.1 V (below GND) and up to VDD – 1 V at 25°C, per the datasheet's VICR specification. However, it does provide rail-to-rail output swing (to within 50 mV of GND and VDD), making it ideal for single-supply systems where output headroom is critical but input referencing can be managed externally.
Can TLC272CPG4 drive capacitive loads reliably?
Yes - TLC272CPG4 is unity-gain stable with up to 20 pF capacitive load, as confirmed in Section 4.7 of the datasheet. For loads exceeding 20 pF, TI recommends adding a small series resistor (e.g., 10–50 Ω) between the output and capacitor to maintain phase margin ≥60° and prevent peaking or oscillation in filter or ADC driver applications.
What is the input bias current specification for TLC272CPG4 at 70°C?
At 70°C, the input bias current for TLC272CPG4 is specified as 40–600 pA (max), with typical values of 40 pA for IIB and 7–300 pA for IIO per Section 4.3. This remains sufficiently low to avoid significant errors in high-impedance feedback networks (e.g., ≥1 MΩ), especially when guard rings and proper PCB layout are applied per TI's Application Note SLOS091F.
Is TLC272CPG4 pin-compatible with other TLC272 variants like TLC272ACPG4?
No - TLC272CPG4 is not pin-compatible with TLC272ACPG4 or TLC272BPG4 in terms of electrical behavior, though all share identical PDIP-8 pinout. The 'C' suffix denotes 10 mV max input offset voltage, while 'A' and 'B' denote tighter (5 mV) and looser (2 mV) grades respectively. Swapping grades without circuit review may cause gain/offset errors in precision applications, even with identical physical packaging.
TLC272CPG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 1.1 mV
- Current - Supply:
- 1.9mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC272CPG4 FAQ
1.How can I place an order for TLC272CPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272CPG4 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 TLC272CPG4 reliable?
The price and inventory of TLC272CPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272CPG4 is usually 5 days.
3.What payment methods are accepted for TLC272CPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272CPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272CPG4?
TLC272CPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272CPG4 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 TLC272CPG4?
For technical support, including TLC272CPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272CPG4 requirements.
6.How does Aetrix verify that TLC272CPG4 is sourced from the original manufacturer or authorized distributors?
All TLC272CPG4 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 TLC272CPG4 meets industry standards.
7.What is the process for return or replacement of TLC272CPG4?
All TLC272CPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272CPG4, 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 TLC272CPG4 part is unused and in its original packaging.
Return procedure for TLC272CPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC272CPG4 Tags
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