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Texas Instruments TLC2272QDRG4
- Part No.:
- TLC2272QDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272QDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,923
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Product details
Overview
TLC2272QDRG4 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, ±5-V supply operation, and 950-µV maximum input offset voltage (TLC2272A grade) at 25°C - enabling high-fidelity analog front-ends in battery-powered sensor interfaces.
For engineers reviewing the TLC2272QDRG4 datasheet, TLC2272QDRG4 pinout, TLC2272QDRG4 application, or TLC2272QDRG4 equivalent, key selection criteria include rail-to-rail output swing (±4.91 V at ±5 V supplies), ultra-low input bias current (1 pA typical), common-mode input range extending to negative rail, and Q-temp automotive qualification (–40°C to +125°C).
Technical Context
The TLC2272QDRG4 employs advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage operates with common-mode voltage down to VDD−, supporting single-supply configurations where the negative rail is grounded.
It features unity-gain stable compensation, 52° phase margin at ±5 V with 10-kΩ load and 100-pF capacitive load, and supports both split-supply (±2.2 V to ±8 V) and single-supply (4.4 V to 16 V) operation - making it suitable for interfacing directly with 12-bit and 16-bit ADCs requiring full-scale dynamic range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - enables stable closed-loop gain up to ~22 at 100 kHz for anti-aliasing or sensor amplification |
| Slew rate | 3.6 V/µs - supports 20-kHz full-scale sine output with ≤0.03% THD+N into 10-kΩ load |
| Input offset voltage | ≤950 µV (max, TA = 25°C) - ensures ≤0.02% gain error in 5-V full-scale instrumentation paths |
| Input bias current | 1 pA typical - preserves signal integrity from high-impedance sources like piezoelectric transducers |
| Output voltage swing | ±4.91 V (min) at ±5 V supplies, IO = ±500 µA - delivers >98% of rail-to-rail range for maximum ADC utilization |
| Supply voltage range | ±2.2 V to ±8 V - compatible with standard ±5-V industrial rails and extended-range automotive supplies |
| Operating temperature | –40°C to +125°C (Q-grade) - qualified per AEC-Q100 for under-hood and powertrain applications |
Pinout & Package
TLC2272QDRG4 is packaged in an 8-pin TSSOP (PW package), body size 4.40 mm × 3.00 mm, with exposed pad for thermal enhancement and moisture sensitivity level 2a.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output channel A; rail-to-rail capable, drives loads ≥10 kΩ without phase reversal |
| 2 | IN− A | Inverting input for channel A; high-impedance CMOS node (10¹² Ω), sensitive to PCB leakage |
| 3 | IN+ A | Non-inverting input for channel A; common-mode range includes VDD−, enabling ground-referenced sensing |
| 4 | VDD−/GND | Negative supply or ground reference; must be low-impedance for rail-to-rail output fidelity |
| 5 | IN+ B | Non-inverting input for channel B; electrically isolated from channel A, supports dual independent signal paths |
| 6 | IN− B | Inverting input for channel B; matched bias current minimizes offset drift between channels |
| 7 | OUT B | Output for channel B; identical AC/DC specs to OUT A, usable for differential output or dual-sensor buffering |
| 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 | Delivers >98% of supply voltage range at ±500 µA load, maximizing dynamic range into SAR or sigma-delta ADCs |
| Low input voltage noise | 9 nV/√Hz at 1 kHz enables sub-µV resolution in low-frequency sensor amplifiers (e.g., thermopile, strain gauge) |
| Ultra-low input bias current | 1 pA typical eliminates significant voltage drop across >100-MΩ source impedances (e.g., pH electrodes, photodiodes) |
| Q-temp automotive qualification | AEC-Q100 Grade 2 rating (–40°C to +125°C) supports deployment in engine control, HVAC, and ADAS subsystems |
| Fully specified single- and split-supply operation | Validated performance from 4.4 V single supply to ±8 V split supply - simplifies design reuse across industrial and automotive platforms |
Applications
| Automotive Cabin Temperature Sensing | Portable ECG Front-End |
|---|---|
Use Scenario: Monitoring NTC thermistor voltage in vehicle HVAC control modules under varying battery voltage (9–16 V) and ambient temperature (–40°C to +85°C). IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 10, referenced to ground, driving 12-bit SAR ADC input. Use Value: Rail-to-rail output ensures full 0–5 V ADC range utilization; 1-pA bias current prevents thermistor self-heating error; Q-grade temp range guarantees reliability across vehicle life cycle. | Use Scenario: Amplifying microvolt-level biopotential signals from dry-electrode ECG leads in handheld patient monitors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer (gain = 1), configured with matched feedback networks for CMRR preservation. Use Value: 9 nV/√Hz input noise maintains SNR > 70 dB at 10 Hz; rail-to-rail output accommodates variable reference voltages; low IDD (2.4 mA) extends battery life in Class II medical devices. |
| Industrial Pressure Transducer Interface | Battery-Powered Gas Detector |
Use Scenario: Conditioning mV-level bridge outputs from MEMS pressure sensors in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Dual-channel differential amplifier: one channel for bridge excitation monitoring, second for bridge output amplification. Use Value: Matched channel specs minimize inter-channel gain/offset mismatch; ±5-V operation aligns with standard PLC supply rails; 75-dB CMRR rejects common-mode noise from 50/60-Hz mains coupling. | Use Scenario: Signal conditioning for electrochemical CO sensors operating from coin-cell batteries (2.0–3.6 V) over 5-year field life. IC Role / Device Role / Timing Role: Transimpedance amplifier converting nanoamp-level sensor current to voltage, followed by low-pass filtering. Use Value: 1-pA input bias current avoids baseline shift in high-gain TIA configurations; 2.4-mA supply current enables >2-year runtime on CR2032; rail-to-rail output maximizes ADC resolution per µA of sensor current. |
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 (1.2 mA/channel vs. 2.4 mA total), lower GBW (2.5 MHz), no A-grade option for <950 µV VIO | Optimized for higher-speed, lower-precision applications; lacks Q-temp qualification | Select TLV2432IDR only if >2.5-MHz bandwidth is required and automotive qualification is unnecessary |
| LMV722QDR | Lower supply voltage range (2.7–5.5 V), higher input noise (17 nV/√Hz), wider VIO range (1.8 mV max), AEC-Q100 qualified | Targeted at 3.3-V systems; less suitable for ±5-V or wide-VDD designs | Choose LMV722QDR when operating strictly from 3.3-V single supply and cost is prioritized over noise performance |
Compared with TLV2432IDR and LMV722QDR, the TLC2272QDRG4 uniquely balances ultra-low input bias current (1 pA), low noise (9 nV/√Hz), rail-to-rail output, and Q-temp qualification - making it the preferred choice for high-impedance, wide-temperature, precision analog signal chains.
Availability
TLC2272QDRG4 is available at Aetrix Electronics and suitable for automotive cabin control, portable medical instrumentation, industrial sensor interface, and battery-powered gas detection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2272QDRG4 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 delivering analog and embedded processing solutions, with leadership in precision analog, power management, and automotive ICs.
The TLC227x family was engineered for rail-to-rail output precision amplification in space-constrained, low-power, and high-reliability applications - particularly targeting automotive sensor interfaces, portable instrumentation, and industrial process control where input bias current and noise critically impact measurement fidelity.
FAQ
What is the maximum output voltage swing of the TLC2272QDRG4 at ±5-V supplies?
The TLC2272QDRG4 delivers a minimum peak-to-peak output voltage of ±4.91 V at ±5-V supplies with ±500 µA load current and TA = 25°C. This rail-to-rail capability ensures >98% of the available supply range is usable, directly supporting high-resolution ADC interfacing without external level-shifting circuitry. The TLC2272QDRG4 maintains this performance across its full –40°C to +125°C operating range.
Does the TLC2272QDRG4 support single-supply operation?
Yes, the TLC2272QDRG4 is fully specified for single-supply operation from 4.4 V to 16 V. Its common-mode input voltage range extends to VDD− (ground in single-supply mode), and its rail-to-rail output swings within 9 mV of each rail under light load. This allows direct use in 5-V or 12-V systems - such as PLC analog input modules or battery-powered data loggers - without requiring dual supplies or input/output biasing networks.
What is the input offset voltage specification for the TLC2272QDRG4?
The TLC2272QDRG4 is part of the TLC2272A variant, guaranteeing a maximum input offset voltage of 950 µV at TA = 25°C and ±5-V supplies. Over the full –40°C to +125°C temperature range, the maximum VIO remains 1500 µV. This tight offset spec - combined with a low 2 µV/°C drift - ensures minimal DC error in precision gain stages, such as those used in weigh scale or pressure transducer signal chains.
Is the TLC2272QDRG4 qualified for automotive applications?
Yes, the TLC2272QDRG4 carries Q-temp automotive qualification per AEC-Q100 Grade 2, rated for operation from –40°C to +125°C. It also meets HBM ESD requirements of ±2000 V and CDM ESD of ±1000 V (for D and PW packages). These qualifications make the TLC2272QDRG4 suitable for under-hood and cabin applications including engine control, HVAC, and ADAS sensor signal conditioning.
How does the TLC2272QDRG4 compare to the legacy TLC272 in terms of performance?
The TLC2272QDRG4 provides significant improvements over the TLC272: rail-to-rail output (vs. limited swing), 9 nV/√Hz input voltage noise (vs. 25 nV/√Hz), 1-pA input bias current (vs. 100-pA), and lower input offset voltage (950 µV max vs. 1.5 mV max). These enhancements enable higher accuracy, better SNR, and broader supply flexibility - making the TLC2272QDRG4 a direct performance upgrade path in existing TLC272-based designs without layout changes.
TLC2272QDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
TLC2272QDRG4 FAQ
1.How can I place an order for TLC2272QDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272QDRG4 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 TLC2272QDRG4 reliable?
The price and inventory of TLC2272QDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272QDRG4 is usually 5 days.
3.What payment methods are accepted for TLC2272QDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272QDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272QDRG4?
TLC2272QDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272QDRG4 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 TLC2272QDRG4?
For technical support, including TLC2272QDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272QDRG4 requirements.
6.How does Aetrix verify that TLC2272QDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC2272QDRG4 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 TLC2272QDRG4 meets industry standards.
7.What is the process for return or replacement of TLC2272QDRG4?
All TLC2272QDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272QDRG4, 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 TLC2272QDRG4 part is unused and in its original packaging.
Return procedure for TLC2272QDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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