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Texas Instruments TLC2272AQDR
- Part No.:
- TLC2272AQDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272AQDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
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Product details
Overview
TLC2272AQDR 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, 1-pA typical input bias current, and ±5-V supply operation with rail-to-rail output swing - enabling direct interfacing with 12-bit ADCs in battery-powered handheld monitoring systems.
For engineers reviewing the TLC2272AQDR datasheet, TLC2272AQDR pinout, TLC2272AQDR application, or TLC2272AQDR equivalent, key selection criteria include its guaranteed 950-µV max input offset voltage (A-grade), Q-temp automotive qualification (–40°C to +125°C), SOIC-8 packaging, and rail-to-rail output capability under single- or split-supply conditions.
Technical Context
The TLC2272AQDR uses advanced LinCMOS process technology to achieve ultra-low input bias current (1 pA typ) while maintaining rail-to-rail output swing across the full supply range (±2.2 V to ±8 V). Its input stage operates down to the negative rail, supporting true single-supply operation with common-mode input voltage extending to VDD−.
It features internal compensation for unity-gain stability with 100-pF capacitive load, exhibits 75-dB typical CMRR and 95-dB typical PSRR at 25°C, and maintains 1.7-V/µs minimum slew rate over full temperature range - making it suitable for transducer amplification where DC accuracy and dynamic response must coexist.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports industrial and automotive split-supply rails without level-shifting circuitry |
| Input Offset Voltage (max) | 950 µV at TA = 25°C - enables <0.1% error in 1-V full-scale precision sensor front-ends |
| Gain-Bandwidth Product | 2.25 MHz at ±5 V - sufficient for anti-aliasing filters up to ~200 kHz with gain ≥10 |
| Slew Rate (min) | 1.7 V/µs over full temperature - ensures <1.5 µs settling to 0.1% for 4.6-V step inputs |
| Input Bias Current (typ) | 1 pA - preserves signal integrity in >1-GΩ source impedance applications (e.g., piezoelectric sensors) |
| Output Swing | Rail-to-rail - delivers full 9.98-VPP output at ±5 V supplies, maximizing dynamic range into ADCs |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC272, critical for low-level analog signal amplification |
Pinout & Package
Package: SOIC-8 (D package), body size 3.91 mm × 4.90 mm, standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±50 mA; rail-to-rail swing enables direct ADC interface |
| 2 | IN− A | Inverting input A - high-impedance node (10¹² Ω); requires guarded layout for pA-level bias current |
| 3 | IN+ A | Non-inverting input A - common-mode range includes VDD−, enabling single-supply sensor biasing |
| 4 | VDD−/GND | Negative supply or ground reference - shared return for both amplifiers; decoupling required |
| 5 | IN+ B | Non-inverting input B - independent channel; identical specs to Channel A |
| 6 | IN− B | Inverting input B - matched to IN− A for differential pair configurations |
| 7 | OUT B | Amplifier B output - fully independent; supports dual-channel signal paths without crosstalk |
| 8 | VDD+ | Positive supply - accepts up to +8 V; internal ESD protection per AEC-Q100 HBM ±2000 V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply-voltage dynamic range - eliminates need for level-shifting when driving SAR or sigma-delta ADCs |
| Low input bias current (1 pA typ) | Minimizes voltage drop across high-impedance sources (e.g., pH electrodes, photodiodes), preserving signal fidelity |
| Q-temp automotive qualification | Rated for –40°C to +125°C operation with full parametric validation - suitable for engine control and ADAS sensor nodes |
| Low noise (9 nV/√Hz) | Reduces integrated noise floor in bandwidth-limited sensor interfaces, improving effective resolution of 16-bit ADCs |
| Single- and split-supply support | Operates from +4.4 V to +16 V (single) or ±2.2 V to ±8 V (split) - simplifies power architecture in mixed-signal systems |
Applications
| Hand-held Monitoring Systems | Transducer Interfaces |
|---|---|
Use Scenario: Portable blood glucose meters and environmental CO₂ sensors requiring microamp-level excitation and low-noise amplification. IC Role / Device Role / Timing Role: Precision front-end amplifier for electrochemical sensor outputs with high source impedance (>100 MΩ). Use Value: 1-pA input bias current prevents measurement drift; rail-to-rail output maximizes ADC utilization without external biasing. | Use Scenario: Piezoelectric vibration sensors in predictive maintenance modules mounted on industrial motors. IC Role / Device Role / Timing Role: Charge amplifier and signal conditioner converting high-impedance charge output to low-impedance voltage. Use Value: 9 nV/√Hz noise density preserves weak signal integrity; 2.25-MHz GBW supports resonance detection up to 200 kHz. |
| Battery-Powered Applications | White Goods Control |
Use Scenario: Smart thermostat sensor hubs powered by coin-cell batteries with multi-year runtime requirements. IC Role / Device Role / Timing Role: Low-quiescent-current (2.4 mA typ) signal conditioner for thermistor and humidity sensor bridges. Use Value: 2.4-mA supply current enables >5-year operation on CR2032; rail-to-rail output simplifies 3.3-V MCU ADC interface. | Use Scenario: Refrigerator compressor control boards needing reliable op-amps for motor current sensing and defrost cycle timing. IC Role / Device Role / Timing Role: Dual-channel amplifier for isolated current shunt measurement and temperature feedback loop conditioning. Use Value: Q-temp rating ensures reliability at +85°C ambient; matched dual channels reduce BOM count and layout area. |
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 |
|---|---|---|---|
| TLV2432IDR | Higher quiescent current (1.3 mA/channel), lower GBW (2.5 MHz), no automotive temp grade | Targeted at commercial-grade portable instruments; lacks Q-temp validation for under-hood use | Select when lower cost and higher speed outweigh automotive qualification needs |
| OPA2333AIDR | Zero-drift architecture, 12-µV max VIO, 0.17-µV/°C drift, but 350-kHz GBW and 0.16-V/µs slew rate | Optimized for ultra-precision DC-coupled applications (e.g., weigh scales), not dynamic signal conditioning | Select when nanovolt-level DC accuracy is mandatory and bandwidth <100 kHz suffices |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2272AQDR uniquely balances automotive-grade reliability, rail-to-rail output, 2.25-MHz bandwidth, and 1-pA input bias - making it optimal for battery-powered sensor nodes requiring both precision and responsiveness across extended temperature ranges.
Availability
TLC2272AQDR is available at Aetrix Electronics and suitable for hand-held monitoring systems, transducer interfaces, and battery-powered applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for TLC2272AQDR 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 automotive-qualified components.
The TLC227x family was engineered for rail-to-rail output performance in low-noise, low-input-bias applications - targeting sensor signal conditioning, portable instrumentation, and automotive subsystems where dynamic range and DC accuracy are jointly critical.
FAQ
What is the maximum operating temperature range for the TLC2272AQDR?
The TLC2272AQDR is qualified to the AEC-Q100 Grade 2 standard, with a specified operating free-air temperature range of –40°C to +125°C. This Q-temp automotive rating is validated across all electrical parameters in the datasheet, including input offset voltage, CMRR, and slew rate - ensuring reliable operation in under-hood and powertrain control environments where the TLC2272AQDR is commonly deployed.
Does the TLC2272AQDR support single-supply operation?
Yes, the TLC2272AQDR fully supports single-supply operation from +4.4 V to +16 V. Its common-mode input voltage range extends to the negative rail (VDD−/GND), and its rail-to-rail output swings within 15 mV of both supply rails - enabling direct interfacing with 3.3-V or 5-V microcontrollers and ADCs without external level-shifting circuitry. This capability is explicitly characterized in the datasheet's Recommended Operating Conditions table.
What is the input offset voltage specification for the TLC2272AQDR?
The TLC2272AQDR has a maximum input offset voltage of 950 µV at TA = 25°C, as defined by the "A" suffix in its part number. This is tighter than the base TLC2272 (2500 µV max) and is guaranteed over the full –40°C to +125°C temperature range up to 1500 µV. The low offset enables high-accuracy DC-coupled amplification in applications such as strain gauge bridges and thermopile signal conditioning where <0.1% gain error is required.
Is the TLC2272AQDR pin-compatible with the TLC2272CDR?
No, the TLC2272AQDR is not pin-compatible with the TLC2272CDR. While both are SOIC-8 packaged dual op-amps sharing identical pinout (per TI's Pin Configuration and Functions section), the "Q" suffix denotes Q-temp automotive qualification with extended temperature validation and different screening/test flow. Electrically and physically, the pin functions and layout are identical - but system-level qualification requirements (e.g., AEC-Q100 stress testing) differ significantly between C-grade and Q-grade variants.
What PCB layout considerations are recommended for the TLC2272AQDR?
For optimal performance, route high-impedance inputs (pins 2, 3, 5, 6) away from noisy traces and use guard rings tied to low-impedance nodes. Place 0.1-µF ceramic decoupling capacitors between pins 4 (VDD−/GND) and 8 (VDD+) as close as possible to the SOIC-8 pads. Avoid thermal vias under the package center pad (none exists in SOIC-8), and maintain >2-mm clearance from board edges to minimize parasitic capacitance affecting 1-pA input bias current accuracy - practices confirmed in TI's Layout Guidelines section (page 29 of SLOS190H).
TLC2272AQDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-SOIC
TLC2272AQDR FAQ
1.How can I place an order for TLC2272AQDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272AQDR 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 TLC2272AQDR reliable?
The price and inventory of TLC2272AQDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272AQDR is usually 5 days.
3.What payment methods are accepted for TLC2272AQDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272AQDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272AQDR?
TLC2272AQDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272AQDR 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 TLC2272AQDR?
For technical support, including TLC2272AQDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272AQDR requirements.
6.How does Aetrix verify that TLC2272AQDR is sourced from the original manufacturer or authorized distributors?
All TLC2272AQDR 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 TLC2272AQDR meets industry standards.
7.What is the process for return or replacement of TLC2272AQDR?
All TLC2272AQDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272AQDR, 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 TLC2272AQDR part is unused and in its original packaging.
Return procedure for TLC2272AQDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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