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Texas Instruments TLC2272AIP
- Part No.:
- TLC2272AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC2272AIP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:228
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Product details
Overview
TLC2272AIP 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, ≤950 µV input offset voltage (max), and operates from ±2.2 V to ±8 V supplies. It is used in battery-powered handheld monitoring systems interfacing piezoelectric transducers with ADCs.
For engineers reviewing the TLC2272AIP datasheet, TLC2272AIP pinout, TLC2272AIP application, or TLC2272AIP equivalent, key selection criteria include rail-to-rail output swing, ultra-low input bias current (1 pA typ), low-noise performance, single- or split-supply flexibility, and guaranteed input offset voltage specification across temperature.
Technical Context
The TLC2272AIP uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage includes common-mode range extending to the negative rail, enabling true single-supply operation with ground-referenced inputs.
It features internal compensation for unity-gain stability, supports full-swing output into 10-kΩ loads, and exhibits 75-dB CMRR and 95-dB PSRR at 25°C under ±5-V supply conditions - critical for precision DC-coupled amplification in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz at AV = 10 without phase margin degradation. |
| Slew rate | 3.6 V/µs - supports clean 100-kHz, 2-VPP sine wave output without distortion. |
| Input offset voltage (max) | 950 µV - ensures ≤0.02% error in 5-V full-scale instrumentation amplifier front-ends. |
| Input bias current (typ) | 1 pA - preserves signal integrity when amplifying from >1-GΩ sources like piezoelectric sensors. |
| Input voltage noise density | 9 nV/√Hz at 1 kHz - contributes <1.8 µV RMS noise in 100-kHz bandwidth, suitable for µV-level sensor signals. |
| Supply voltage range | ±2.2 V to ±8 V - allows direct use with standard ±5-V rails or low-voltage ±2.5-V systems. |
| Common-mode input range | Extends to VDD− - enables ground-sensing in single-supply configurations without level-shifting circuitry. |
| Output swing (RL = 10 kΩ) | Within 15 mV of both rails - maximizes dynamic range when driving SAR or delta-sigma ADCs with 0–5-V input ranges. |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), body size 3.91 mm × 4.90 mm, plastic, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, Channel 1 | Amplified output node for first op-amp; rail-to-rail capable, drives 10-kΩ load to within 15 mV of either supply. |
| 1IN− | Inverting input, Channel 1 | Differential input terminal; accepts signals down to VDD−, supports DC-coupled feedback networks. |
| 1IN+ | Non-inverting input, Channel 1 | Differential input terminal; matched impedance to 1IN−, enables high-CMRR differential sensing. |
| VDD+ | Positive supply | Highest potential supply pin; must be ≥ |VDD−| + 4.4 V for specified operation per recommended conditions. |
| VDD−/GND | Negative supply / Ground | Reference for split-supply (±V) or ground return for single-supply (VDD+, GND); common-mode range includes this pin. |
| 2IN− | Inverting input, Channel 2 | Independent second amplifier input; electrically isolated from Channel 1, same specs and biasing. |
| 2IN+ | Non-inverting input, Channel 2 | Second amplifier positive input; supports dual-channel signal conditioning without crosstalk. |
| 2OUT | Output, Channel 2 | Second independent rail-to-rail output; usable for active filtering, I/V conversion, or reference buffering. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range to ADCs without external level-shifting or supply boosting. |
| Low input bias current (1 pA typ) | Minimizes voltage error across high-impedance sensor elements and feedback resistors >1 MΩ. |
| Low input voltage noise (9 nV/√Hz) | Enables accurate amplification of microvolt-level signals from strain gauges or thermopiles. |
| Specified for single- and split-supply operation | Eliminates need for separate design variants - same schematic works with 5-V or ±5-V rails. |
| Input common-mode range includes negative rail | Supports ground-referenced sensor interfaces (e.g., bridge outputs) without input biasing resistors. |
| Maximum input offset voltage ≤950 µV | Guaranteed initial accuracy simplifies calibration in portable medical or environmental monitors. |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level output from piezoelectric pressure sensors in HVAC airflow meters. IC Role / Device Role / Timing Role: First-stage low-noise, high-input-impedance amplifier conditioning microvolt-level AC signals before filtering and digitization. Use Value: 1-pA input bias avoids loading high-Z sensor capacitance; rail-to-rail output fully utilizes 12-bit ADC input range. | Use Scenario: Signal conditioning in portable ECG patch devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Dual-channel amplifier for lead-I and lead-II biopotential acquisition with DC-coupled baseline stabilization. Use Value: 2.4-mA supply current per amplifier extends battery life; ±2.2-V min supply enables operation down to 4.4-V battery stack. |
| White Goods Control | Configuration & Print Support |
Use Scenario: Temperature sensing and motor current monitoring in smart refrigerator control boards. IC Role / Device Role / Timing Role: Dual op-amp performing RTD signal amplification and H-bridge current sense amplification simultaneously. Use Value: Guaranteed 950-µV max VIO ensures consistent temperature reading accuracy across production units; wide supply range tolerates line fluctuations. | Use Scenario: Analog front-end for paper jam detection and toner level sensing in laser printers. IC Role / Device Role / Timing Role: Precision comparator driver and photodiode transimpedance amplifier in optical sensing subsystems. Use Value: Low 9-nV/√Hz noise improves SNR in low-light optical detection; rail-to-rail output interfaces directly with microcontroller ADCs. |
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 |
|---|---|---|---|
| TLC2272IP | Higher max input offset voltage (2500 µV vs. 950 µV); otherwise identical architecture, pinout, and specs. | Suitable where initial DC accuracy is less critical, e.g., AC-coupled audio preamps or non-precision comparators. | Select TLC2272IP only if cost sensitivity outweighs need for guaranteed low VIO in production calibration. |
| TLV2432IDR | Higher slew rate (10 V/µs), lower supply current (1.3 mA), but higher input offset (2000 µV max) and no guaranteed VIO spec over temperature. | Better for higher-speed signal paths (e.g., active filters above 500 kHz), but requires tighter layout for stability. | Choose TLV2432IDR when speed and power efficiency dominate; avoid if system-level DC accuracy validation is required. |
Compared with TLC2272IP and TLV2432IDR, the TLC2272AIP uniquely guarantees ≤950 µV input offset voltage across temperature - making it the preferred choice for production-grade instrumentation where factory calibration overhead must be minimized.
Availability
TLC2272AIP is available at Aetrix Electronics and suitable for white goods control, battery-powered monitoring, and transducer interface applications requiring stable component supply, long-term parametric consistency, and automotive-grade reliability options (Q-temp variants).
Supply support for TLC2272AIP 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 for industrial, automotive, and personal electronics markets.
The TLC227x family was engineered to replace legacy TLC27x op-amps with improved noise, offset, and rail-to-rail output capability - specifically targeting precision, low-power, high-impedance sensor signal chains in space-constrained equipment.
FAQ
What is the maximum guaranteed input offset voltage for TLC2272AIP?
The TLC2272AIP has a maximum input offset voltage of 950 µV at TA = 25°C, and 1500 µV across its full operating temperature range (–40°C to 125°C for I-level parts). This guaranteed spec distinguishes it from the standard TLC2272IP (2500 µV max) and enables reduced system-level calibration effort in production test flows for the TLC2272AIP.
Does TLC2272AIP support true single-supply operation with input referenced to ground?
Yes, the TLC2272AIP supports true single-supply operation: its common-mode input voltage range extends to VDD− (i.e., ground when VDD− = GND), and its output swings rail-to-rail. This allows direct amplification of ground-referenced sensor signals (e.g., bridge outputs) without input biasing networks - a confirmed capability documented in the TLC2272AIP datasheet Section 6.5 and 6.6.
What package options are available for TLC2272AIP?
The TLC2272AIP is offered exclusively in the 8-pin SOIC (D) package with body dimensions of 3.91 mm × 4.90 mm. Other variants like TLC2272APW (TSSOP) or TLC2272AMJ (CDIP) exist in the family, but the 'IP' suffix specifically denotes the SOIC package - verified in TI's official orderable addendum and packaging documentation for the TLC2272AIP.
Can TLC2272AIP drive capacitive loads without instability?
The TLC2272AIP is unity-gain stable with capacitive loads up to 100 pF when using a 10-kΩ load resistor, as confirmed by phase margin (52°) and gain margin (10 dB) measurements in the datasheet (Section 6.6). For loads >100 pF, external isolation resistance (e.g., 10–50 Ω in series with the output) is required to maintain stability - a design constraint explicitly validated for the TLC2272AIP.
How does TLC2272AIP compare to TLC2272AM in terms of temperature range and screening?
The TLC2272AIP is rated for industrial temperature range (–40°C to 125°C) and manufactured to standard commercial/industrial quality levels. In contrast, the TLC2272AM is a military-spec part qualified from –55°C to 125°C with enhanced screening (e.g., burn-in, lot acceptance testing) per MIL-PRF-38535. Both share identical electrical specs, but the TLC2272AIP is not subjected to military-level qualification - a distinction clearly defined in TI's device information tables for the TLC2272AIP.
TLC2272AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC2272AIP FAQ
1.How can I place an order for TLC2272AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272AIP 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 TLC2272AIP reliable?
The price and inventory of TLC2272AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272AIP is usually 5 days.
3.What payment methods are accepted for TLC2272AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272AIP?
TLC2272AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272AIP 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 TLC2272AIP?
For technical support, including TLC2272AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272AIP requirements.
6.How does Aetrix verify that TLC2272AIP is sourced from the original manufacturer or authorized distributors?
All TLC2272AIP 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 TLC2272AIP meets industry standards.
7.What is the process for return or replacement of TLC2272AIP?
All TLC2272AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272AIP, 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 TLC2272AIP part is unused and in its original packaging.
Return procedure for TLC2272AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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