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Texas Instruments TLC2272QPWRG4
- Part No.:
- TLC2272QPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2272QPWRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
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Product details
Overview
TLC2272QPWRG4 from Texas Instruments is a dual rail-to-rail output operational amplifier designed for precision signal conditioning in low-power, high-impedance sensor interfaces. It delivers 2.2-MHz gain-bandwidth, 3.6-V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, ±5 V supply operation, and rail-to-rail output swing - enabling direct interfacing with 12-bit ADCs in battery-powered handheld monitoring systems.
For engineers reviewing the TLC2272QPWRG4 datasheet, TLC2272QPWRG4 pinout, TLC2272QPWRG4 application, or TLC2272QPWRG4 equivalent, key selection criteria include input bias current (1 pA typ), input offset voltage (≤950 µV max), common-mode input range extending to negative rail, low quiescent current (2.4 mA typ at ±5 V), and Q-temp automotive qualification (–40°C to +125°C).
Technical Context
The TLC2272QPWRG4 employs Advanced LinCMOS™ process technology to achieve ultra-low input bias current and rail-to-rail output capability without compromising AC performance. Its input stage supports common-mode voltages down to VDD−, and its output can swing within 15 mV of either rail under light load, making it suitable for single-supply data acquisition front-ends.
It operates across ±2.2 V to ±8 V supply ranges, maintains ≥75 dB CMRR and ≥80 dB PSRR over temperature, and features internal compensation for unity-gain stability with 100-pF capacitive loads - eliminating need for external compensation in most transducer interface configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports wide industrial and automotive supply rails including ±5 V standard and ±3.3 V low-voltage systems |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz with moderate gain (e.g., AV = 10) |
| Slew Rate | 3.6 V/µs - supports clean 10-kHz full-scale sine output at 2-Vpp without distortion |
| Input Offset Voltage | ≤950 µV (max, TA = 25°C) - ensures ≤0.02% error in 5-V full-scale measurement systems |
| Input Bias Current | 1 pA (typ) - minimizes voltage error across >10-MΩ source impedances (e.g., piezoelectric sensors) |
| Output Swing | Within 15 mV of rails at ±5 V, IO = ±20 µA - eliminates need for level-shifting when driving SAR ADC references |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC272, critical for low-level thermocouple or strain gauge amplification |
Pinout & Package
TLC2272QPWRG4 is packaged in an 8-pin TSSOP (PW) with 4.40 mm × 3.00 mm body size and 0.65-mm lead pitch. The package is RoHS-compliant, moisture-sensitive level 2a, and qualified per AEC-Q100 Grade 2 (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output channel A; capable of sourcing/sinking ±20 µA while maintaining rail-to-rail swing |
| 2 | IN− A | Inverting input for channel A; high-impedance node (10¹² Ω) requiring guarded layout for <1-pA leakage paths |
| 3 | IN+ A | Non-inverting input for channel A; accepts common-mode voltage from VDD− to (VDD+ − 1.5 V) |
| 4 | VDD−/GND | Negative supply or ground reference; must be low-impedance; shared return for both channels |
| 5 | IN− B | Inverting input for channel B; electrically isolated from channel A but shares same supply pins |
| 6 | IN+ B | Non-inverting input for channel B; identical electrical specs to IN+ A |
| 7 | OUT B | Output for channel B; independently driven; no crosstalk specification given but typical isolation >80 dB |
| 8 | VDD+ | Positive supply; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stability |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full dynamic range utilization in single-supply 3.3-V or 5-V systems without level-shifting circuitry |
| 1-pA typical input bias current | Preserves signal integrity from high-impedance sources (e.g., pH electrodes, photodiodes) without added parallel resistance |
| 9 nV/√Hz input voltage noise | Reduces integrated noise floor in 10-Hz–10-kHz bandwidth applications by >3 µVrms vs. TLC272 |
| Q-temp automotive qualification | Validated for under-hood and infotainment modules per AEC-Q100 Grade 2, including HTOL and TC testing |
| Common-mode input range to VDD− | Allows direct sensing of signals referenced to ground in single-supply configurations (e.g., current-sense shunt amplifiers) |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from piezoelectric accelerometers in structural health monitoring nodes. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with ultra-low input bias current to prevent charge leakage on high-Z sensor elements. Use Value: 1-pA input bias current prevents signal decay during multi-second integration windows; rail-to-rail output drives 12-bit SAR ADC input directly. | Use Scenario: Signal conditioning in portable ECG patch devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel front-end amplifier for differential lead I/II/III derivation with simultaneous low-noise amplification and power optimization. Use Value: 2.4-mA supply current at ±5 V enables >72-hour runtime; 9-nV/√Hz noise ensures diagnostic-grade SNR for 0.5–40-Hz cardiac band. |
| White Goods Control | Analog Sensor Hub |
Use Scenario: Temperature and motor current feedback in inverter-driven refrigerator compressors. IC Role / Device Role / Timing Role: Dual op-amp performing RTD excitation buffering and shunt-based current sensing in harsh thermal environments. Use Value: AEC-Q100 Grade 2 qualification ensures reliability at 125°C ambient; rail-to-rail output accommodates variable VDD due to unregulated DC bus. | Use Scenario: Multi-sensor aggregation node in smart building HVAC controllers (CO₂, humidity, occupancy). IC Role / Device Role / Timing Role: Dual amplifier providing programmable gain stages for analog sensor outputs prior to multiplexed ADC sampling. Use Value: Input offset voltage ≤950 µV guarantees <0.02% FSR error across all calibrated sensors; 2.25-MHz GBW supports fast settling for time-division multiplexing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2272IPW | Same silicon, Industrial temp grade (–40°C to +85°C); not AEC-Q100 qualified | Lacks automotive stress testing and extended temperature validation | Select when cost sensitivity outweighs automotive qualification requirements |
| TLV2432IDR | Higher slew rate (10 V/µs), higher supply current (1.2 mA/channel), lower noise (11 nV/√Hz), SOIC-8 only | Optimized for higher-speed control loops but less suitable for ultra-low-power battery operation | Prefer for servo position feedback where speed > power efficiency |
Compared with TLC2272QPWRG4, TLC2272IPW offers identical electrical performance but lacks automotive qualification and extended temperature coverage, while TLV2432IDR trades ultra-low bias current and noise for higher speed and power - making TLC2272QPWRG4 optimal for precision, low-power, automotive-qualified dual-amplifier roles.
Availability
TLC2272QPWRG4 is available at Aetrix Electronics and suitable for automotive infotainment modules, industrial sensor transmitters, and portable medical diagnostics equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for TLC2272QPWRG4 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 across industrial, automotive, and personal electronics markets.
The TLC227x family was engineered specifically for precision, low-power, rail-to-rail signal conditioning in high-impedance sensor interfaces - targeting applications where input bias current, noise, and output swing limitations of legacy CMOS op-amps caused measurement errors.
FAQ
What is the maximum operating temperature range for the TLC2272QPWRG4?
The TLC2272QPWRG4 is qualified per AEC-Q100 Grade 2 with an operating free-air temperature range of –40°C to +125°C. This rating is validated through high-temperature operating life (HTOL), temperature cycling (TC), and other stress tests required for automotive under-hood applications. The device maintains specified electrical performance across this full range, including input offset voltage ≤1500 µV and supply current ≤3 mA.
Does the TLC2272QPWRG4 support single-supply operation?
Yes, the TLC2272QPWRG4 is fully specified for single-supply operation. With VDD− tied to ground, it accepts input common-mode voltages from 0 V (GND) up to (VDD+ − 1.5 V), and its output swings within 15 mV of GND and within 15 mV of VDD+. For example, at VDD+ = 5 V and VDD− = GND, the output delivers 0.015 V to 4.985 V - enabling direct connection to 5-V ADCs without level-shifting circuitry.
What is the input offset voltage specification for the TLC2272QPWRG4?
The TLC2272QPWRG4 is the 'A' variant of the TLC2272 family, guaranteeing a maximum input offset voltage of 950 µV at TA = 25°C. Over the full operating temperature range (–40°C to +125°C), the maximum offset is 1500 µV. This is confirmed in Section 6.5 and 6.6 of the SLOS190H datasheet under both VDD = 5 V and VDD± = ±5 V conditions, with typical values at 300 µV.
Is the TLC2272QPWRG4 pin-compatible with the standard TLC2272?
Yes, the TLC2272QPWRG4 uses the same 8-pin TSSOP (PW) package and identical pinout as the base TLC2272 family. Pin assignments - including OUT A (1), IN− A (2), IN+ A (3), VDD−/GND (4), IN− B (5), IN+ B (6), OUT B (7), and VDD+ (8) - match exactly. No PCB layout changes are required when upgrading from industrial-grade TLC2272IPW or TLC2272CPW to the automotive-qualified TLC2272QPWRG4.
What decoupling is recommended for stable operation of the TLC2272QPWRG4?
A 0.1-µF ceramic capacitor placed within 5 mm of the VDD+ (pin 8) and VDD−/GND (pin 4) pins is mandatory for stable operation. TI's SLOS190H datasheet specifies this in Section 9 (Power Supply Recommendations) and confirms stability with 100-pF capacitive loads. For noisy environments, adding a 4.7-µF tantalum or aluminum electrolytic capacitor in parallel improves low-frequency PSRR. Ground-plane integrity and short, direct return paths are critical due to the device's 1-pA input bias current sensitivity.
TLC2272QPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 2.4mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLC2272QPWRG4 FAQ
1.How can I place an order for TLC2272QPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272QPWRG4 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 TLC2272QPWRG4 reliable?
The price and inventory of TLC2272QPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272QPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC2272QPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272QPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272QPWRG4?
TLC2272QPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272QPWRG4 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 TLC2272QPWRG4?
For technical support, including TLC2272QPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272QPWRG4 requirements.
6.How does Aetrix verify that TLC2272QPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC2272QPWRG4 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 TLC2272QPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC2272QPWRG4?
All TLC2272QPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272QPWRG4, 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 TLC2272QPWRG4 part is unused and in its original packaging.
Return procedure for TLC2272QPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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