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Texas Instruments TLC2272AQDG4
- Part No.:
- TLC2272AQDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272AQDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,073
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Product details
Overview
TLC2272AQDG4 from Texas Instruments is a dual rail-to-rail output operational amplifier designed for precision signal conditioning in low-voltage, low-power systems. 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 output swing to both rails - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2272AQDG4 datasheet, TLC2272AQDG4 pinout, TLC2272AQDG4 application, or TLC2272AQDG4 equivalent, key selection criteria include rail-to-rail output swing under ±5-V supplies, sub-1-mV max input offset voltage (TLC2272A grade), ultra-low input bias current for high-impedance transducer interfaces, and Q-temp automotive qualification (–40°C to +125°C).
Technical Context
The TLC2272AQDG4 uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low noise and micropower operation. Its input stage supports common-mode voltage down to the negative rail, and its unity-gain-stable architecture ensures robust performance with capacitive loads up to 100 pF.
It operates across ±2.2 V to ±8 V supply ranges and is fully characterized at ±5 V and 5 V single-supply conditions. The device exhibits 75 dB minimum CMRR and 80 dB minimum PSRR over temperature, supporting stable DC-coupled amplification in noisy industrial environments.
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 split supplies. |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz with moderate gain (e.g., AV = 10) for sensor signal amplification. |
| Slew Rate | 3.6 V/µs - sufficient for 10-bit ADC driving at 100 kSPS with <0.1% distortion in unity-gain buffer configurations. |
| Input Offset Voltage (max) | 950 µV at TA = 25°C - tight DC accuracy for precision instrumentation without trimming in cost-sensitive designs. |
| Input Bias Current (typ) | 1 pA - preserves signal integrity when amplifying from >1 GΩ sources such as piezoelectric or pH electrodes. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–5 V or ±5 V reference inputs, maximizing SNR utilization. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than legacy TLC27x op-amps, critical for low-level analog signal fidelity. |
Pinout & Package
TLC2272AQDG4 is packaged in an 8-pin SOIC (D package) with body size 3.91 mm × 4.90 mm, optimized for automated assembly and thermal reliability in automotive control modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, Channel 1 | Amplified output node capable of sourcing/sinking ±20 mA; swings within 10 mV of either supply rail under light load. |
| 1IN− | Inverting Input, Channel 1 | Differential input terminal; accepts signals down to VDD− (negative rail); high-impedance (10¹² Ω) minimizes loading on source. |
| 1IN+ | Non-inverting Input, Channel 1 | Differential input terminal; common-mode range includes VDD−, enabling ground-referenced sensor interfaces. |
| VDD−/GND | Negative Supply / Ground | Reference node for split-supply (±5 V) or single-supply (0 V/GND) operation; must be low-impedance for noise immunity. |
| VDD+ | Positive Supply | Primary power rail; supports up to +8 V; decoupling capacitor required near pin for stability. |
| 2IN− | Inverting Input, Channel 2 | Independent second channel input; electrically isolated from Channel 1; same specs and rail-swing capability. |
| 2IN+ | Non-inverting Input, Channel 2 | Second differential input pair; enables dual-channel signal conditioning (e.g., differential sensor + reference buffer). |
| 2OUT | Output, Channel 2 | Second independent rail-to-rail output; usable simultaneously with Channel 1 without crosstalk degradation. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full-scale utilization of 12-bit+ ADCs without level-shifting circuitry, reducing BOM count and layout area. |
| Low input bias current (1 pA typ) | Preserves signal integrity from ultra-high-impedance sensors (e.g., glass pH electrodes, piezoresistive strain gauges) without guard traces or active guarding. |
| Q-temp automotive qualification | Rated for –40°C to +125°C operation with AEC-Q100 stress testing, suitable for engine control, HVAC, and ADAS subsystems. |
| Low noise (9 nV/√Hz) | Improves effective resolution by ≥1 LSB in 16-bit data acquisition systems compared to TLC272, especially at audio and sensor bandwidths. |
| Macromodel included | SPICE model validated against production silicon enables accurate AC/DC/transient simulation before prototype build. |
Applications
| Automotive Cabin Sensors | Industrial Transducer Interface |
|---|---|
Use Scenario: Amplifying low-level output from NTC thermistors and humidity sensors in vehicle climate control modules. IC Role / Device Role / Timing Role: Dual-channel precision buffer and gain stage, converting ratiometric sensor outputs to ADC-compatible voltage levels. Use Value: Rail-to-rail output ensures full 0–5 V span utilization with 5 V ADC references; low input bias current prevents thermistor self-heating errors. | Use Scenario: Conditioning piezoelectric accelerometer signals in predictive maintenance vibration monitors. IC Role / Device Role / Timing Role: Charge amplifier front-end with ultra-high input impedance and low noise to preserve signal-to-noise ratio. Use Value: 1-pA input bias current avoids signal attenuation; 9 nV/√Hz noise floor maintains >80 dB dynamic range at 1 kHz. |
| Battery-Powered Medical Devices | White Goods Motor Control Feedback |
Use Scenario: Amplifying ECG electrode potentials in portable patient monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-power, rail-to-rail instrumentation amplifier stage with DC-coupled input for baseline stability. Use Value: 2.4 mA supply current per amplifier extends battery life; rail-to-rail output maximizes ADC code usage without external biasing. | Use Scenario: Isolating and scaling current-sense signals from BLDC motor phase legs in smart washing machines. IC Role / Device Role / Timing Role: High-common-mode rejection differential amplifier feeding MCU ADC inputs. Use Value: 75 dB CMRR rejects PWM switching noise; ±5 V operation matches motor driver supply domains without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2432IDR | Higher quiescent current (550 µA vs. 2.4 mA per amp), lower GBW (2.3 MHz), no Q-temp rating. | Targeted at ultra-low-power portable electronics, not automotive-grade reliability. | Choose TLV2432IDR only if supply current is primary constraint and AEC-Q100 compliance is unnecessary. |
| OPA2333AIDR | Zero-drift architecture, 10 µV max VIO, but higher noise (5.5 µVPP), limited output drive (±25 mA), no rail-to-rail input. | Optimized for precision DC measurements (e.g., weigh scales), not wideband sensor conditioning. | Select OPA2333AIDR when microvolt-level DC accuracy dominates over bandwidth and rail-swing requirements. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2272AQDG4 uniquely balances rail-to-rail output, Q-temp qualification, 2.25-MHz bandwidth, and 1-pA input bias - making it optimal for automotive and industrial sensor signal chains where reliability, dynamic range, and high-impedance compatibility are jointly critical.
Availability
TLC2272AQDG4 is available at Aetrix Electronics and suitable for automotive cabin sensing, industrial transducer interfacing, and battery-powered medical monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2272AQDG4 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 high-reliability op-amp design.
The TLC227x family was engineered to upgrade legacy TLC27x designs with rail-to-rail output, lower noise, and improved input offset - specifically targeting automotive, industrial, and portable instrumentation applications demanding precision and robustness.
FAQ
What is the maximum operating temperature range for the TLC2272AQDG4?
The TLC2272AQDG4 is qualified for operation from –40°C to +125°C per AEC-Q100 Grade 2 requirements, making it suitable for under-hood automotive applications and industrial environments with elevated ambient temperatures. This rating is confirmed in the device's Recommended Operating Conditions table and applies across the full supply voltage range of ±2.2 V to ±8 V.
Does the TLC2272AQDG4 support single-supply operation?
Yes, the TLC2272AQDG4 is fully specified for single-supply operation - for example, with VDD+ = 5 V and VDD−/GND = 0 V. Its common-mode input voltage range extends to the negative rail, and its rail-to-rail output can swing within 10 mV of both supply rails, enabling true single-supply signal conditioning without external level-shifting components.
What is the input offset voltage specification for the TLC2272AQDG4?
The TLC2272AQDG4 ('A' grade) has a maximum input offset voltage of 950 µV at TA = 25°C and 1500 µV across the full operating temperature range (–40°C to +125°C). This is significantly tighter than the standard TLC2272 (2500 µV max at 25°C), enabling higher DC accuracy in precision measurement circuits without calibration.
Is the TLC2272AQDG4 pin-compatible with the standard TLC2272D?
Yes, the TLC2272AQDG4 shares identical 8-pin SOIC (D) package dimensions, pinout, and footprint with the TLC2272D and TLC2272ADG4. All electrical and thermal specifications align with the D-package variant, allowing direct substitution in existing PCB layouts without modification.
What are the ESD ratings for the TLC2272AQDG4?
The TLC2272AQDG4 meets AEC-Q100-002 HBM requirements with ±2000 V human-body model rating and ±1000 V charged-device model rating - verified for D and PW package variants. These ratings ensure robust handling during manufacturing and field deployment in electrostatic-prone environments like automotive assembly lines.
TLC2272AQDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TLC2272AQDG4 FAQ
1.How can I place an order for TLC2272AQDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272AQDG4 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 TLC2272AQDG4 reliable?
The price and inventory of TLC2272AQDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272AQDG4 is usually 5 days.
3.What payment methods are accepted for TLC2272AQDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272AQDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272AQDG4?
TLC2272AQDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272AQDG4 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 TLC2272AQDG4?
For technical support, including TLC2272AQDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272AQDG4 requirements.
6.How does Aetrix verify that TLC2272AQDG4 is sourced from the original manufacturer or authorized distributors?
All TLC2272AQDG4 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 TLC2272AQDG4 meets industry standards.
7.What is the process for return or replacement of TLC2272AQDG4?
All TLC2272AQDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272AQDG4, 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 TLC2272AQDG4 part is unused and in its original packaging.
Return procedure for TLC2272AQDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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