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Texas Instruments TLC272ACPS
- Part No.:
- TLC272ACPS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC272ACPS.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,876
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Product details
Overview
TLC272ACPS 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 front-ends and industrial analog interfaces.
For engineers reviewing the TLC272ACPS datasheet, TLC272ACPS pinout, TLC272ACPS application, or TLC272ACPS equivalent, key selection considerations include its C-suffix temperature grade (0°C to 70°C), PS (SOP-8) package footprint, low-input-bias-current architecture (<60 pA typ), and compatibility with single-supply systems requiring ground-referenced inputs and outputs.
Technical Context
The TLC272ACPS employs a polysilicon-gate CMOS input stage delivering >10¹² Ω input impedance and sub-60 pA input bias current, enabling high-impedance source interfacing without significant error. Its common-mode input range extends below the negative rail (–0.1 V at VDD = 5 V), supporting true single-supply operation with grounded reference points.
It integrates ESD protection circuitry and latch-up immunity, and achieves 65–80 dB common-mode rejection (CMRR) and 65–120 dB supply-voltage rejection (kSVR) across temperature - ensuring stable DC accuracy in noisy industrial environments where supply ripple and ground shifts are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max at 25°C - enables accurate DC-coupled amplification of low-level signals without external trimming. |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor outputs (e.g., thermocouples, strain gauges). |
| Unity-Gain Bandwidth | 4.5 MHz - sufficient for anti-aliasing filtering, active instrumentation amplifiers, and medium-speed signal conditioning. |
| Slew Rate | 0.5 V/μs - limits large-signal transient response but ensures stability with capacitive loads up to 20 pF. |
| Supply Voltage Range | 3 V to 16 V (0°C–70°C) - compatible with 3.3 V, 5 V, and 12 V logic/system rails without level-shifting. |
| Common-Mode Input Range | Extends to –0.1 V below negative rail at VDD = 5 V - allows direct interface to 0 V referenced sensors and transducers. |
| Output Voltage Swing | Includes negative rail (VOL ≤ 50 mV at IOL = 0) - preserves dynamic range in single-supply configurations with ground-referenced loads. |
Pinout & Package
Package: PS (SOP-8), 6.2 mm × 7.8 mm body size with standard 1.27 mm pitch; surface-mount, gull-wing leads; RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential input signal; requires guard ring routing in PCB layout for leakage-sensitive applications. |
| 2 | Non-Inverting Input (Amplifier A) | Accepts reference or signal source; common-mode range includes negative rail - usable as ground-referenced input. |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; output swing reaches within 50 mV of negative rail - suitable for driving ADC reference buffers. |
| 4 | Negative Supply (V–) | Connect to system ground in single-supply mode; serves as return path for both amplifiers' quiescent current (max 4.4 mA total). |
| 5 | Non-Inverting Input (Amplifier B) | Independent input channel; identical electrical specs to Pin 2 - enables dual-channel signal processing on one die. |
| 6 | Inverting Input (Amplifier B) | Matches Pin 1 performance; use with feedback network for second gain stage or comparator hysteresis. |
| 7 | Output (Amplifier B) | Functionally identical to Pin 3; supports independent load driving - e.g., dual-channel sensor signal conditioning. |
| 8 | Positive Supply (V+) | Accepts 3–16 V DC; internal regulation not required; bypass capacitor (0.1 μF ceramic) recommended adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimized architecture | Enables operation from 3 V with input common-mode range extending below ground and rail-to-rail output swing - eliminates need for split supplies in portable and industrial systems. |
| Low input bias current (<60 pA typ) | Permits use of high-value resistor networks (e.g., MΩ-range voltage dividers) for reference generation without loading error - critical for battery-operated sensor nodes. |
| Polysilicon-gate CMOS process | Reduces input offset voltage drift to 0.3 μV/°C (25°C–70°C) and long-term drift to ~0.1 μV/month - ensures stable calibration over time and temperature. |
| ESD-protection circuitry | Withstands human-body-model (HBM) ESD events per JEDEC JESD22-A114 - improves manufacturing yield and field reliability in unshielded assembly environments. |
| Latch-up immunity | Guarantees no destructive latch-up under normal operating conditions per JEDEC JESD78 - enhances robustness in systems with transient supply faults or hot-plug events. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-amplitude, high-impedance outputs from RTDs, thermistors, and piezoresistive pressure sensors in factory-floor monitoring systems. IC Role / Device Role / Timing Role: Precision dual op-amp configured as instrumentation amplifier front-end and low-pass filter driver. Use Value: 5 mV max VIO and 10.8 nV/√Hz noise preserve microvolt-level resolution; rail-to-rail output drives 12-bit SAR ADCs directly from 5 V supply. |
Use Scenario: Signal conditioning for ECG electrode interfaces and pulse oximeter photodiode amplifiers in handheld diagnostic devices. IC Role / Device Role / Timing Role: Dual-channel transimpedance and gain-stage amplifier with single-supply biasing. Use Value: Sub-60 pA input bias current prevents electrode polarization error; 3 V minimum supply enables operation from coin-cell or Li-ion sources. |
| Automotive Cabin Environment Monitoring | Programmable Logic Controller (PLC) Analog I/O Modules |
Use Scenario: Processing cabin temperature, humidity, and CO₂ sensor outputs in automotive HVAC control units. IC Role / Device Role / Timing Role: Dual op-amp implementing ratiometric scaling, offset correction, and anti-alias filtering before MCU ADC sampling. Use Value: 0°C–70°C C-suffix rating matches automotive interior ambient spec; 65–80 dB CMRR rejects engine compartment EMI coupled onto sensor lines. |
Use Scenario: Isolated analog input conditioning for 4–20 mA loop receivers and thermocouple cold-junction compensation in industrial PLC backplanes. IC Role / Device Role / Timing Role: Dual amplifier providing loop-powered signal buffering and linearization circuitry. Use Value: 16 V max supply accommodates industrial 24 V rails; latch-up immunity ensures survival during field wiring faults and surge events. |
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 |
|---|---|---|---|
| TLV272IDR | Lower VIO (2 mV max), higher quiescent current (1.25 mA vs 3.2 mA), same SOP-8 package. | Better DC accuracy but reduced battery life in portable systems; not rated for 16 V operation (max 6 V). | Select TLV272IDR when ultra-low offset dominates over supply voltage range and power budget. |
| LMV358IDR | Rail-to-rail input/output, lower cost, but higher VIO (7 mV max) and noise (40 nV/√Hz); same SOP-8 footprint. | Acceptable for non-critical signal paths (e.g., LED dimming control) but insufficient for precision sensor front-ends. | Choose LMV358IDR only for cost-sensitive, non-precision applications where 3.3 V/5 V operation suffices. |
Compared with TLV272IDR and LMV358IDR, the TLC272ACPS uniquely balances 5 mV offset, 3–16 V supply flexibility, and 10.8 nV/√Hz noise - making it the optimal choice for industrial and medical designs requiring wide-voltage single-supply operation without sacrificing DC precision.
Availability
TLC272ACPS 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 production lifecycles.
Supply support for TLC272ACPS 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 chain solutions.
The TLC272ACPS belongs to TI's TLC27xx precision dual op-amp family, designed specifically for single-supply, low-power, high-input-impedance applications in industrial automation, medical instrumentation, and sensor signal conditioning.
FAQ
What is the maximum supply voltage rating for the TLC272ACPS?
The TLC272ACPS has an absolute maximum supply voltage (VDD) rating of 18 V, with recommended operation from 3 V to 16 V over the 0°C to 70°C temperature range. Exceeding 16 V in continuous operation risks parametric degradation, while operation below 3 V may compromise output swing and slew rate performance. Always observe derating curves in Section 4.1 of the SLOS091F datasheet.
Does the TLC272ACPS support true rail-to-rail input operation?
The TLC272ACPS does not provide full rail-to-rail input common-mode range. Its common-mode input voltage extends to –0.1 V below the negative rail (enabling ground-referenced inputs) but only up to VDD – 1 V at 25°C (e.g., 4 V max at VDD = 5 V). This asymmetric range is intentional for single-supply optimization and differs from modern RRI/RRO op-amps.
Can unused amplifier sections in the TLC272ACPS be left floating?
No - unused amplifier sections in the TLC272ACPS must not be left floating. TI explicitly recommends configuring them as grounded unity-gain followers (non-inverting buffer with output tied to inverting input and non-inverting input tied to ground) to prevent oscillation, phase reversal, or increased supply current due to internal node instability.
What is the typical input bias current of the TLC272ACPS at 70°C?
The typical input bias current of the TLC272ACPS is 40 pA at 70°C, with a maximum of 600 pA across the full 0°C to 70°C operating range. This value is confirmed in Table 4.3 (Electrical Characteristics, VDD = 5 V) of the SLOS091F datasheet and reflects the device's polysilicon-gate CMOS process stability at elevated temperatures.
Is the TLC272ACPS pin-compatible with the TLC272CP?
Yes - the TLC272ACPS (SOP-8) and TLC272CP (PDIP-8) share identical pin numbering and functional assignment per Figure 3-1 of the datasheet. However, they differ in package type, thermal resistance, and board-level mechanical integration; PCB layout must be redesigned to accommodate the SOP-8 footprint and reflow requirements of the PS package.
TLC272ACPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SO
TLC272ACPS FAQ
1.How can I place an order for TLC272ACPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272ACPS 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 TLC272ACPS reliable?
The price and inventory of TLC272ACPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272ACPS is usually 5 days.
3.What payment methods are accepted for TLC272ACPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272ACPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272ACPS?
TLC272ACPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272ACPS 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 TLC272ACPS?
For technical support, including TLC272ACPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272ACPS requirements.
6.How does Aetrix verify that TLC272ACPS is sourced from the original manufacturer or authorized distributors?
All TLC272ACPS 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 TLC272ACPS meets industry standards.
7.What is the process for return or replacement of TLC272ACPS?
All TLC272ACPS units undergo pre-shipment inspection (PSI). If there is an issue with TLC272ACPS, 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 TLC272ACPS part is unused and in its original packaging.
Return procedure for TLC272ACPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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