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Texas Instruments TLC272ACPG4
- Part No.:
- TLC272ACPG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC272ACPG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,383
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Product details
Overview
TLC272ACPG4 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 analog front-ends.
For engineers reviewing the TLC272ACPG4 datasheet, TLC272ACPG4 pinout, TLC272ACPG4 application, or TLC272ACPG4 equivalent, key selection criteria include input offset voltage grade (A-suffix = 5 mV), PDIP-8 package compatibility, single-supply common-mode range extending below ground, low bias current (<60 pA), and ESD-protected input stage - all critical for low-power, high-impedance transducer amplification.
Technical Context
The TLC272ACPG4 uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω) and low input bias current (10–60 pA), minimizing loading on high-impedance sources like piezoelectric sensors and pH electrodes. Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V), enabling true single-supply operation without level-shifting circuitry.
Internally, it integrates latch-up immunity and ESD protection, with specified operation across 0°C–70°C (C-suffix). The dual-amplifier architecture shares a single 8-pin PDIP package, with independent inputs/outputs and no internal cross-coupling - supporting discrete gain stages or differential-to-single-ended conversion in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max at 25°C - enables accurate DC-coupled amplification of mV-level sensor outputs without trimming. |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - ensures minimal added noise in audio preamps and precision instrumentation. |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop gain up to ~100× at 45 kHz with adequate phase margin (60°). |
| Slew Rate | 0.5 V/μs - sufficient for <100 kHz full-power sine waves at ±2 V output swing into 10 kΩ. |
| Supply Voltage Range | 3 V to 16 V - compatible with 3.3 V, 5 V, and 12 V systems; allows direct interface with TTL/HCMOS logic rails. |
| Common-Mode Input Range | –0.1 V to VDD – 1 V (25°C) - permits input signals referenced to ground in single-supply configurations. |
| Output Voltage Swing | Within 50 mV of negative rail and within 50 mV of positive rail - maximizes dynamic range in low-voltage applications. |
Pinout & Package
The TLC272ACPG4 is housed in an 8-pin Plastic Dual In-line Package (PDIP) measuring 9.81 mm × 9.43 mm, with standard 0.3-inch row spacing and through-hole mounting. This package supports manual prototyping and legacy PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential input signal; requires guard ring for leakage-sensitive applications. |
| 2 | Non-Inverting Input (Amplifier A) | High-Z reference or sensor connection point; bias current ≤60 pA minimizes voltage error across high-value dividers. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; swings within 50 mV of rails under 10 kΩ load. |
| 4 | Negative Supply (V–) | Ground reference for single-supply use; supports common-mode input down to –0.1 V relative to this pin. |
| 5 | Non-Inverting Input (Amplifier B) | Independent second channel input; identical specs to Pin 2 - enables dual-stage filtering or differential pair. |
| 6 | Inverting Input (Amplifier B) | Second channel inverting node; matched offset and noise performance to Amplifier A for consistent dual-channel behavior. |
| 7 | Output (Amplifier B) | Independent output with same drive capability and rail-swing as Pin 3 - supports parallel or cascaded configurations. |
| 8 | Positive Supply (V+) | Accepts 3–16 V; supply current 1.12–3.2 mA per dual amplifier - enables low-quiescent-power operation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 50 mV of both supply rails, preserving >95% of available dynamic range in 3.3 V or 5 V systems. |
| Ultra-low input bias current | ≤60 pA typical at 25°C - enables use with >1 MΩ source impedances without significant DC error. |
| Single-supply optimized input stage | Common-mode range extends 0.1 V below V–, eliminating need for external bias networks in ground-referenced designs. |
| ESD-protection circuitry | Integrated protection on all pins per JEDEC JS-001 - withstands ≥2 kV HBM, reducing board-level transient suppression needs. |
| Latch-up immunity | Designed-in robustness against inadvertent current injection during power sequencing or fault conditions. |
Applications
| Medical Sensor Interface | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from thermocouples and strain gauges in portable diagnostic devices. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low drift and negligible input loading. Use Value: 5 mV max VIO and 0.3 µV/°C tempco ensure <±0.5°C accuracy over 0–70°C without calibration. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation. IC Role / Device Role / Timing Role: Single-supply I/V converter and buffer driving ADC reference inputs. Use Value: Rail-to-rail output swing and 3 V min supply enable direct interface with 3.3 V SAR ADCs. |
| Portable Audio Preamp | Automotive Cabin Sensors |
|
Use Scenario: Low-noise microphone preamplifier in battery-operated voice recorders and IoT edge nodes. IC Role / Device Role / Timing Role: First-stage amplification with 10.8 nV/√Hz noise floor and high Zin. Use Value: 10.8 nV/√Hz noise and <60 pA bias current preserve SNR when paired with 2.2 kΩ electret elements. |
Use Scenario: Signal conditioning for humidity and CO₂ sensors in automotive HVAC control modules. IC Role / Device Role / Timing Role: High-impedance buffer and anti-alias filter driver for 12-bit microcontroller ADCs. Use Value: >10¹² Ω input impedance prevents loading of capacitive polymer sensors; 0°C–70°C rating matches cabin spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV272IP | Lower VIO (2 mV max), lower supply current (1.25 mA), but narrower supply range (2.7–16 V) and no C-suffix temp grade. | Better for ultra-low-power battery applications; not rated for 0°C–70°C industrial ambient without derating. | Select TLV272IP only if sub-2 mV offset and <1.3 mA supply current are mandatory and temperature range is relaxed. |
| OPA2333AIDR | Zero-drift architecture, 12 µV max VIO, 0.1 µV/°C drift, but higher cost and 1.8–5.5 V supply limit. | Required for <0.1 µV/°C drift in precision weigh scales; incompatible with 12 V or 16 V supplies used with TLC272ACPG4. | Choose OPA2333AIDR only when microvolt-level drift stability is essential and supply is constrained to ≤5.5 V. |
Compared with TLV272IP and OPA2333AIDR, the TLC272ACPG4 offers the broadest supply range (3–16 V), proven C-suffix industrial temperature qualification, and optimal balance of offset (5 mV), noise (10.8 nV/√Hz), and cost for general-purpose precision analog signal chains.
Availability
TLC272ACPG4 is available at Aetrix Electronics and suitable for medical sensor interfaces, industrial process monitoring, portable audio preamplifiers, and automotive cabin sensor signal conditioning requiring stable component supply across extended production lifecycles.
Supply support for TLC272ACPG4 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 expertise in precision op-amps and industrial-grade signal conditioning ICs.
The TLC272ACPG4 belongs to TI's TLC27xx precision dual op-amp family, designed specifically for cost-sensitive, single-supply applications demanding low offset, low noise, and rail-to-rail output - including sensor front-ends and portable instrumentation.
FAQ
What is the maximum input offset voltage specification for TLC272ACPG4 at 25°C?
The TLC272ACPG4 has a maximum input offset voltage of 5 mV at 25°C, as defined by its A-suffix grade. This value is guaranteed across the full operating temperature range (0°C to 70°C), with a typical temperature coefficient of 0.3 µV/°C - making TLC272ACPG4 suitable for applications where moderate DC accuracy is required without active trimming.
Does TLC272ACPG4 support true single-supply operation with inputs referenced to ground?
Yes, the TLC272ACPG4 supports true single-supply operation: its common-mode input voltage range extends to –0.1 V relative to the negative supply pin (V–), allowing direct connection of grounded sensor signals. This eliminates the need for external biasing networks in applications such as thermocouple amplifiers and bridge sensor interfaces using TLC272ACPG4.
What package type and dimensions does TLC272ACPG4 use?
The TLC272ACPG4 uses an 8-pin Plastic Dual In-line Package (PDIP) with dimensions of 9.81 mm × 9.43 mm and standard 0.3-inch row spacing. This through-hole package is compatible with manual soldering, breadboarding, and legacy industrial PCB assemblies - distinct from surface-mount variants like SOIC or TSSOP offered in the same TLC272 family.
Can unused amplifier channels in TLC272ACPG4 be left floating?
No - unused amplifier channels in TLC272ACPG4 must not be left floating. TI recommends configuring them as grounded unity-gain followers (non-inverting input tied to ground, output connected to inverting input) to prevent oscillation, excessive current draw, or unpredictable output states that could affect the active channel's performance or system stability.
What is the typical input voltage noise density of TLC272ACPG4 and at what frequency is it measured?
The TLC272ACPG4 has a typical input voltage noise density of 10.8 nV/√Hz, measured at 1 kHz with a 20 Ω source resistance. This low noise performance - combined with ultra-low input bias current (<60 pA) - makes TLC272ACPG4 especially effective in high-impedance sensor interfaces where noise current would otherwise dominate total system noise.
TLC272ACPG4 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:
- 900 µV
- 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
TLC272ACPG4 FAQ
1.How can I place an order for TLC272ACPG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272ACPG4 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 TLC272ACPG4 reliable?
The price and inventory of TLC272ACPG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272ACPG4 is usually 5 days.
3.What payment methods are accepted for TLC272ACPG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272ACPG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272ACPG4?
TLC272ACPG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272ACPG4 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 TLC272ACPG4?
For technical support, including TLC272ACPG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272ACPG4 requirements.
6.How does Aetrix verify that TLC272ACPG4 is sourced from the original manufacturer or authorized distributors?
All TLC272ACPG4 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 TLC272ACPG4 meets industry standards.
7.What is the process for return or replacement of TLC272ACPG4?
All TLC272ACPG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272ACPG4, 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 TLC272ACPG4 part is unused and in its original packaging.
Return procedure for TLC272ACPG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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