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Texas Instruments TLC2272IDR
- Part No.:
- TLC2272IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2272IDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,678
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Product details
Overview
TLC2272IDR from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for precision, low-noise signal conditioning in single- or split-supply 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 rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2272IDR datasheet, TLC2272IDR pinout, TLC2272IDR application, or TLC2272IDR equivalent, key selection criteria include its rail-to-rail output capability under ±5 V or 5-V supply, ultra-low input bias current for high-impedance transducer interfaces, and guaranteed 950-µV max input offset voltage (A-grade variant), critical for DC-coupled precision amplification.
Technical Context
The TLC2272IDR uses 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 range extending to the negative rail, supporting true single-supply operation down to 4.4 V total supply (±2.2 V).
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin into 10-kΩ//100-pF loads - ensuring robust stability in unity-gain buffers and active filters without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - supports closed-loop bandwidth up to ~2 MHz at moderate gains for sensor signal conditioning. |
| Slew rate | 3.6 V/µs - enables accurate reproduction of fast-changing signals up to ~570 kHz at 10-Vpp output. |
| Input bias current | 1 pA typical - minimizes voltage error across high-impedance sources like piezoelectric sensors or pH electrodes. |
| Input voltage noise | 9 nV/√Hz at 1 kHz - ensures low-noise amplification of microvolt-level signals without significant SNR degradation. |
| Input offset voltage | ≤950 µV (max, TLC2272A grade) - reduces DC error in precision instrumentation and sensor offset calibration circuits. |
| Supply voltage range | ±2.2 V to ±8 V (or 4.4 V to 16 V single-supply) - accommodates industrial 5-V, automotive 12-V, and portable 3.3-V/5-V rails. |
| Common-mode input range | Extends to VDD− - allows direct sensing of signals referenced to ground in single-supply configurations. |
Pinout & Package
TLC2272IDR is supplied in an 8-pin SOIC (D) package measuring 3.91 mm × 4.90 mm, with standard JEDEC MS-012AC footprint and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplified output of Channel 1; rail-to-rail swing supports full dynamic range utilization with ADCs. |
| 2 | IN− A | Inverting input of Channel 1; high impedance (10¹² Ω) minimizes loading on feedback networks. |
| 3 | IN+ A | Non-inverting input of Channel 1; common-mode range includes VDD−, enabling ground-referenced inputs. |
| 4 | VDD−/GND | Negative supply or ground reference; must be connected - not NC - for proper biasing and rail-to-rail operation. |
| 5 | IN+ B | Non-inverting input of Channel 2; electrically isolated from Channel 1; supports dual independent signal paths. |
| 6 | IN− B | Inverting input of Channel 2; matched input characteristics enable consistent performance across both channels. |
| 7 | OUT B | Amplified output of Channel 2; identical AC/DC specs to OUT A for synchronized dual-channel designs. |
| 8 | VDD+ | Positive supply terminal; accepts up to +8 V (or +16 V in single-supply mode) with thermal derating. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers >99% of supply rail-to-rail voltage range under 20-µA load - maximizes ADC input utilization and dynamic range. |
| Low input bias current | 1-pA typical enables use with >1-GΩ source impedances (e.g., electret mics, photodiode TIA feedback) without significant offset drift. |
| Low input voltage noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC272 - improves SNR in audio preamps and strain-gauge bridges. |
| Specified for single- and split-supply | Guaranteed operation from 4.4 V single supply to ±8 V - simplifies design reuse across portable, industrial, and automotive platforms. |
| High CMRR & PSRR | 75 dB CMRR and 95 dB PSRR - suppresses power supply ripple and common-mode interference in noisy environments. |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from piezoelectric accelerometers or capacitive humidity sensors. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier with rail-to-rail output driving SAR ADC input. Use Value: 1-pA input bias prevents signal loss across high-Z sensor elements; rail-to-rail swing ensures full-scale ADC utilization without level-shifting circuitry. | Use Scenario: Signal conditioning in handheld ECG or blood glucose meters operating from coin-cell batteries. IC Role / Device Role / Timing Role: Low-power, low-noise front-end amplifier for analog sensor preprocessing before digitization. Use Value: 2.4-mA supply current at ±5 V enables multi-hour operation; 9 nV/√Hz noise preserves diagnostic signal fidelity at sub-mV levels. |
| White Goods Control | ADC Driver |
Use Scenario: Temperature and motor current sensing in refrigerator control boards exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Dual-channel signal conditioner handling thermistor voltage division and shunt-based current measurement. Use Value: Guaranteed operation from –40°C to 125°C (I-grade); 950-µV max VIO reduces calibration burden across temperature. | Use Scenario: Driving the input of 12-bit to 16-bit SAR ADCs in data acquisition modules. IC Role / Device Role / Timing Role: Unity-gain buffer isolating sensitive ADC input from source impedance variations. Use Value: 50° phase margin and 10-dB gain margin ensure stable settling within 3.2 µs (0.01%) - meeting timing requirements of 200-kSPS ADCs. |
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 slew rate (10 V/µs), higher supply current (1.3 mA per channel), no A-grade offset option. | Better suited for higher-speed active filters; less optimal for ultra-low-power or ultra-low-offset DC applications. | Select TLV2432IDR when bandwidth >5 MHz or slew rate >5 V/µs is required; avoid when <1-pA bias or ≤950-µV VIO is mandatory. |
| OPA2333AIDR | Zero-drift architecture, 0.02-µV/°C offset drift, 17-µV max VIO, but higher noise (5.5 µVpp, 0.1–10 Hz). | Superior for long-term DC stability in precision weigh scales; overqualified for general-purpose transducer buffering. | Select OPA2333AIDR only when microvolt-level offset drift over temperature is critical; TLC2272IDR remains preferred for cost-sensitive, noise-limited, or high-Z applications. |
Compared with TLV2432IDR and OPA2333AIDR, TLC2272IDR uniquely balances ultra-low input bias current, rail-to-rail output, and industry-standard SOIC packaging - making it the optimal choice for high-impedance, battery-constrained, and cost-sensitive dual-amplifier signal chains where sub-microvolt drift is not required.
Availability
TLC2272IDR is available at Aetrix Electronics and suitable for white goods control, handheld monitoring systems, and transducer interface applications requiring stable component supply, long-term manufacturability, and TI-qualified automotive-grade variants (Q-temp).
Supply support for TLC2272IDR 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, embedded processing, and digital signal technologies with over 50 years of innovation in precision analog ICs.
The TLC227x family was designed specifically for rail-to-rail output precision amplification in high-impedance, low-power, and single-supply systems - succeeding the TLC27x with improved noise, offset, and dynamic range.
FAQ
What supply voltage ranges does the TLC2272IDR support?
The TLC2272IDR operates from ±2.2 V to ±8 V in split-supply mode or 4.4 V to 16 V in single-supply mode. At ±5 V, it delivers rail-to-rail output swing with 3.6-V/µs slew rate and 2.25-MHz gain-bandwidth. The device maintains specified performance across this full range, including guaranteed operation at the minimum ±2.2 V condition - critical for low-voltage portable designs using the TLC2272IDR.
Does the TLC2272IDR have rail-to-rail input capability?
No, the TLC2272IDR features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD−), not the positive rail. The maximum common-mode input is typically VDD+ − 1.5 V at 25°C. This allows ground-referenced inputs in single-supply configurations but requires input signals to remain ≥1.5 V below VDD+ - a key constraint when designing with the TLC2272IDR in high-side sensing applications.
What is the maximum input offset voltage specification for the TLC2272IDR?
The TLC2272IDR is part of the TLC2272A grade, with a maximum input offset voltage of 950 µV at TA = 25°C and full-range maximum of 1500 µV. This is explicitly specified in the "TLC2272 and TLC2272A Electrical Characteristics" tables for both VDD = 5 V and VDD± = ±5 V conditions. Designers relying on tight DC accuracy must account for this 1.5-mV worst-case offset when using the TLC2272IDR in precision gain stages.
Can the TLC2272IDR drive heavy capacitive loads directly?
The TLC2272IDR is unity-gain stable into 100-pF capacitive loads with 10-kΩ series resistance, as verified by 50° phase margin and 10-dB gain margin in the datasheet. However, direct driving of >500-pF loads (e.g., long PCB traces or unbuffered ADC inputs) risks instability and ringing. For such cases, a small isolation resistor (e.g., 10–50 Ω) between TLC2272IDR output and the capacitive load is recommended to preserve step response integrity.
Is the TLC2272IDR suitable for automotive applications?
Yes - the TLC2272IDR is offered in Q-temp automotive qualification (AEC-Q100 Grade 2, –40°C to +125°C), with tested ESD ratings (±2000 V HBM) and extended temperature characterization. Its guaranteed performance across –40°C to 125°C, low drift (2 µV/°C), and robust PSRR/CMRR make it suitable for engine control, cabin climate, and ADAS sensor signal conditioning where the TLC2272IDR replaces legacy op-amps in automotive ECUs.
TLC2272IDR 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2272IDR FAQ
1.How can I place an order for TLC2272IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2272IDR 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 TLC2272IDR reliable?
The price and inventory of TLC2272IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2272IDR is usually 5 days.
3.What payment methods are accepted for TLC2272IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2272IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2272IDR?
TLC2272IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2272IDR 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 TLC2272IDR?
For technical support, including TLC2272IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2272IDR requirements.
6.How does Aetrix verify that TLC2272IDR is sourced from the original manufacturer or authorized distributors?
All TLC2272IDR 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 TLC2272IDR meets industry standards.
7.What is the process for return or replacement of TLC2272IDR?
All TLC2272IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2272IDR, 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 TLC2272IDR part is unused and in its original packaging.
Return procedure for TLC2272IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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