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Texas Instruments TLC2272AMDR
- Part No.:
- TLC2272AMDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272AMDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,327
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Product details
Overview
TLC2272AMDR 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 950-µV maximum input offset voltage at 25°C - enabling accurate amplification of microvolt-level transducer outputs in battery-powered instrumentation.
For engineers reviewing the TLC2272AMDR datasheet, TLC2272AMDR pinout, TLC2272AMDR application, or TLC2272AMDR equivalent, key selection criteria include rail-to-rail output swing (±4.91 V at ±5 V supply), common-mode input range extending to negative rail, low 2.4-mA supply current per amplifier, and Q-temp automotive qualification (–40°C to 125°C) for industrial control and automotive subsystems.
Technical Context
The TLC2272AMDR uses Advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typ) and low noise (9 nV/√Hz). Its input stage operates with common-mode voltage down to VDD−, supporting single-supply operation with ground-referenced inputs.
It features unity-gain stable compensation, 52° phase margin, and 10-dB gain margin under 10-kΩ load and 100-pF capacitive load conditions. The device is fully specified across ±2.2 V to ±8 V dual-supply and 4.4 V to 16 V single-supply ranges, with input offset voltage drift of only 2 µV/°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V dual; supports wide-input-range sensing without level-shifting |
| Input Offset Voltage | ≤950 µV max at 25°C - enables DC-coupled precision amplification with <0.1% error at 1-V output |
| Slew Rate | 3.6 V/µs typ - sustains 20-kHz full-scale sine output at 1-Vpp without distortion |
| Gain-Bandwidth Product | 2.25 MHz typ at ±5 V - allows stable closed-loop gain ≥10 up to 200 kHz |
| Input Bias Current | 1 pA typ - preserves signal integrity from >1-GΩ sources like piezoelectric sensors |
| Output Swing | ±4.91 V min at ±5 V / 500 µA - drives ADC inputs directly with >98% dynamic range utilization |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC272, critical for low-amplitude bio-signal conditioning |
Pinout & Package
Package: SOIC-8 (3.91 mm × 4.90 mm), RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, Channel 1 | Rail-to-rail output capable of sourcing/sinking ±200 µA within 150 mV of either rail |
| 1IN− | Inverting Input, Channel 1 | Differential input node with 10¹² Ω common-mode resistance; accepts signals down to VDD− |
| 1IN+ | Non-inverting Input, Channel 1 | High-impedance node optimized for low-current sensor interfacing (1 pA bias) |
| VDD−/GND | Negative Supply / Ground | Reference terminal for single-supply (GND) or split-supply (VDD−) operation |
| VDD+ | Positive Supply | Accepts 4.4 V to 16 V (single) or up to +8 V (dual); internal regulation ensures stable biasing |
| 2IN− | Inverting Input, Channel 2 | Independent high-Z input identical to 1IN−; enables dual-channel differential front-end |
| 2IN+ | Non-inverting Input, Channel 2 | Matches 1IN+ performance; supports simultaneous dual-sensor acquisition |
| 2OUT | Output, Channel 2 | Functionally identical to 1OUT; enables independent signal paths without cross-talk |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable output voltage within 90 mV of either supply rail at ±5 V, maximizing ADC input range |
| Low input bias current | 1-pA typical enables direct connection to high-impedance pH electrodes and photodiode transimpedance nodes |
| Low input voltage noise | 9 nV/√Hz at 1 kHz reduces integrated noise floor in 10-Hz–10-kHz bandwidth sensor channels |
| Q-temp automotive qualification | Specified from –40°C to +125°C ambient, meeting AEC-Q100 Grade 2 requirements for engine bay modules |
| Single- and split-supply operation | Fully characterized at 5 V and ±5 V - eliminates need for external level-shifting in mixed-voltage systems |
Applications
| Industrial Sensor Interface | Battery-Powered Data Logger |
|---|---|
Use Scenario: Amplifying millivolt-level output from load cells and strain gauges in factory automation PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low offset drift, driving 16-bit SAR ADC reference buffers. Use Value: 950-µV max VIO and 2 µV/°C drift ensure <±0.05% full-scale error over –25°C to 70°C operating range. | Use Scenario: Signal conditioning for thermistor and humidity sensor arrays in portable environmental monitoring units. IC Role / Device Role / Timing Role: Dual-channel buffer/amplifier powering low-noise analog front-end before multiplexed ADC sampling. Use Value: 2.4-mA total supply current per channel extends 2-AA battery life beyond 12 months at 1-sample/sec duty cycle. |
| Automotive Cabin Climate Control | Medical Patient Monitor Front-End |
Use Scenario: Conditioning NTC thermistor signals for HVAC blower motor temperature feedback in passenger compartment modules. IC Role / Device Role / Timing Role: Rail-to-rail output op-amp interfacing with 3.3-V microcontroller ADC inputs under 12-V battery supply. Use Value: Q-temp qualification and –40°C to 125°C operation guarantee reliability across vehicle lifetime thermal cycling. | Use Scenario: Low-noise amplification of ECG electrode signals prior to 24-bit delta-sigma ADC conversion. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with ultra-low input current to minimize electrode polarization. Use Value: 1-pA input bias current prevents DC offset buildup on Ag/AgCl electrodes during multi-hour patient monitoring sessions. |
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 1.8-mA/channel supply current; 0.15-mV max VIO; 1.5-MHz GBW | Better DC precision but lower bandwidth; not qualified for automotive temp range | Select TLV2432IDR when sub-200-µV offset is required and temperature range ≤85°C |
| OPA2333AIDR | Zero-drift architecture; 2-µV max VIO; 350-nA supply current; 350-kHz GBW | Superior DC accuracy and ultra-low power, but insufficient bandwidth for >10-kHz sensor signals | Choose OPA2333AIDR for static or low-frequency measurements where long-term drift must be <0.01 µV/°C |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2272AMDR uniquely balances 2.25-MHz bandwidth, rail-to-rail output, automotive temperature rating, and 1-pA input bias - making it optimal for dynamic, high-impedance sensor interfaces in harsh environments where both AC response and DC stability matter.
Availability
TLC2272AMDR is available at Aetrix Electronics and suitable for industrial sensor interface, battery-powered data logger, and automotive cabin climate control applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2272AMDR 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 specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The TLC227x family was engineered for rail-to-rail output performance in low-noise, low-input-bias applications - targeting high-impedance transducer interfaces, portable instrumentation, and automotive subsystems demanding extended temperature operation.
FAQ
What is the maximum operating supply voltage for the TLC2272AMDR?
The TLC2272AMDR supports dual-supply operation up to ±8 V and single-supply operation from 4.4 V to 16 V. Absolute maximum ratings specify ±8 V on VDD+ and VDD− terminals. Exceeding these limits risks permanent damage. Operation at ±8 V is validated across the full –40°C to 125°C temperature range for Q-temp grade devices, including the TLC2272AMDR.
Does the TLC2272AMDR support true rail-to-rail input common-mode range?
The TLC2272AMDR features rail-to-rail *output* swing but its common-mode input voltage range extends only to VDD− (negative rail) and up to VDD+ −1.5 V. At ±5 V supply, VICR is –5.3 V to +3.5 V - meaning the non-inverting input can accept signals at ground but cannot reach the positive rail. This design prioritizes low input bias current and noise over full rail-to-rail input capability.
How does the TLC2272AMDR differ from the standard TLC2272DR?
The TLC2272AMDR is the A-grade version: it guarantees maximum input offset voltage of 950 µV (vs. 2500 µV for standard TLC2272DR) and is qualified to Q-temp automotive standards (–40°C to 125°C). Both share identical pinout, package (SOIC-8), bandwidth, slew rate, and noise performance. The "A" suffix denotes tighter DC specifications and extended temperature validation.
Can the TLC2272AMDR drive a 10-kΩ load while maintaining rail-to-rail output?
Yes. At ±5 V supply and 25°C, the TLC2272AMDR delivers ±4.91 V minimum output swing into 500 µA load (equivalent to 10 kΩ at ±4.91 V), confirmed in Section 6.6 of the datasheet. Output voltage degrades to ±4.25 V at ±1 mA load (≈4.25 kΩ), so for full rail-to-rail performance, keep load impedance ≥10 kΩ or reduce output current demand via gain-setting resistors.
Is the TLC2272AMDR suitable for driving ADC inputs directly?
Yes. With rail-to-rail output swing (±4.91 V at ±5 V), low 1.4-µVpp integrated input noise (0.1–10 Hz), and 2.25-MHz bandwidth, the TLC2272AMDR is well-suited to drive SAR and delta-sigma ADCs. Its 140-Ω closed-loop output impedance at 1 MHz ensures stable settling into typical ADC input capacitance (10–20 pF) without external isolation resistors in most 16-bit applications.
TLC2272AMDR 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2272AMDR FAQ
1.How can I place an order for TLC2272AMDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272AMDR 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 TLC2272AMDR reliable?
The price and inventory of TLC2272AMDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272AMDR is usually 5 days.
3.What payment methods are accepted for TLC2272AMDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272AMDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272AMDR?
TLC2272AMDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272AMDR 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 TLC2272AMDR?
For technical support, including TLC2272AMDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272AMDR requirements.
6.How does Aetrix verify that TLC2272AMDR is sourced from the original manufacturer or authorized distributors?
All TLC2272AMDR 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 TLC2272AMDR meets industry standards.
7.What is the process for return or replacement of TLC2272AMDR?
All TLC2272AMDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272AMDR, 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 TLC2272AMDR part is unused and in its original packaging.
Return procedure for TLC2272AMDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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