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Texas Instruments TLC2254AIPWR
- Part No.:
- TLC2254AIPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2254AIPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,490
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Product details
Overview
TLC2254AIPWR from Texas Instruments is a quad rail-to-rail output, very low-power operational amplifier in a 14-pin TSSOP package. It delivers 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and 35 µA per channel supply current. Designed for single- or split-supply operation (±2.2 V to ±8 V), it enables high-dynamic-range signal conditioning in battery-powered sensor interfaces and ADC drivers.
For engineers reviewing the TLC2254AIPWR datasheet, TLC2254AIPWR pinout, TLC2254AIPWR application, or TLC2254AIPWR equivalent, key selection criteria include its rail-to-rail output swing, sub-1 mV max input offset voltage (TLC2254A variant), ultra-low power consumption, and guaranteed operation across –40°C to +125°C industrial temperature range.
Technical Context
The TLC2254AIPWR implements Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining micropower operation. Its input stage includes high-impedance CMOS transistors enabling 10¹² Ω common-mode and differential input resistance, supporting direct interfacing with high-impedance sources like piezoelectric sensors.
It features fully specified performance over both single-supply (e.g., 5 V) and split-supply (e.g., ±5 V) configurations, with common-mode input voltage range extending to the negative rail and output swing covering both supply rails. The device exhibits 63° phase margin and 15 dB gain margin under standard 50 kΩ/100 pF load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current (per channel) | 35 µA typ - Enables multi-year operation on coin-cell batteries in remote sensing nodes. |
| Input Bias Current | 1 pA typ - Minimizes voltage error when amplifying signals from high-impedance sources (>1 MΩ). |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - Supports precision low-frequency measurement without dominant amplifier noise contribution. |
| Input Offset Voltage (max) | 850 µV at TA = 25°C - Sufficient for 12-bit system accuracy without trimming in many industrial analog front-ends. |
| Output Swing | Rail-to-rail - Delivers full dynamic range into successive-approximation ADCs operating from same supply. |
| Common-Mode Input Range | Includes negative rail - Allows direct amplification of ground-referenced sensor outputs in single-supply systems. |
| Operating Temperature | –40°C to +125°C - Qualified for under-hood automotive and industrial control applications. |
Pinout & Package
TLC2254AIPWR uses a 14-pin TSSOP (PW) package with 0.65 mm pitch, 5.0 mm × 4.4 mm body size, and exposed thermal pad (non-electrical). Pin numbering follows standard JEDEC outline MS-012AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - Drives external load or next-stage input; rail-to-rail capable. |
| 2 | IN– A | Inverting input of Amp A - High-impedance node; sensitive to PCB leakage and stray capacitance. |
| 3 | IN+ A | Non-inverting input of Amp A - Matches IN– A in bias current; used for unity-gain buffer or differential sensing. |
| 4 | VDD+ | Positive supply rail - Accepts 2.2 V to 8 V (single) or ±2.2 V to ±8 V (split); decoupling required. |
| 5 | IN+ B | Non-inverting input of Amp B - Electrically isolated from other inputs; supports independent signal paths. |
| 6 | IN– B | Inverting input of Amp B - Paired with Pin 5 for second op-amp; layout symmetry recommended. |
| 7 | OUT B | Amplifier B output - Identical electrical behavior to Pin 1; may drive separate signal chain. |
| 8 | GND / VDD– | Ground or negative supply - Reference for all inputs/outputs; low-impedance return path essential. |
| 9 | OUT C | Amplifier C output - Third independent output; enables three-channel signal conditioning in one IC. |
| 10 | IN– C | Inverting input of Amp C - Matches Pins 2 and 6; maintains consistent noise and offset characteristics. |
| 11 | IN+ C | Non-inverting input of Amp C - Completes third op-amp; usable for sensor biasing or reference buffering. |
| 12 | VDD+ | Positive supply rail (redundant connection) - Shared with Pin 4; improves supply current distribution. |
| 13 | IN+ D | Non-inverting input of Amp D - Fourth channel input; supports quad-sensor systems or multi-feedback loops. |
| 14 | OUT D | Amplifier D output - Final output; enables full quad functionality without external interconnects. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range at output - eliminates headroom loss when driving SAR or sigma-delta ADCs. |
| Ultra-low input bias current | 1 pA typical - Preserves signal integrity from high-Z sources such as pH electrodes or photodiode transimpedance stages. |
| Low-noise architecture | 19 nV/√Hz at 1 kHz - Outperforms prior-generation micropower CMOS op-amps by 4×, critical for low-level sensor signal recovery. |
| Wide supply range | ±2.2 V to ±8 V or 4.4 V to 16 V - Supports direct integration into legacy 5 V, modern 3.3 V, and automotive 12 V-derived rails. |
| Industrial temperature grade | –40°C to +125°C operation - Meets AEC-Q100 stress test requirements for under-hood and motor-control applications. |
Applications
| Strain Gauge Signal Conditioning | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in structural health monitoring. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end stage providing gain, filtering, and rail-to-rail output drive into 16-bit ADC. Use Value: 1 pA input bias current prevents bridge imbalance errors; 850 µV max VIO ensures <0.1% gain error at 100× gain without calibration. | Use Scenario: Biopotential amplification of 0.5–5 mV cardiac signals in handheld electrocardiogram devices. IC Role / Device Role / Timing Role: First-stage AC-coupled amplifier with high common-mode rejection and low 1/f noise. Use Value: 19 nV/√Hz input noise preserves QRS complex fidelity; 35 µA/channel current enables >500-hour battery life on CR2032. |
| Thermopile IR Sensor Interface | 4–20 mA Loop Receiver |
Use Scenario: Low-noise amplification of microvolt thermopile outputs in non-contact temperature sensors. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain and DC-coupled output. Use Value: Rail-to-rail output swing maximizes ADC utilization; 10¹² Ω input resistance avoids thermal EMF loading errors. | Use Scenario: Converting industrial 4–20 mA current loop signals to 0–3.3 V voltage for microcontroller ADC sampling. IC Role / Device Role / Timing Role: Precision I-to-V converter with buffered output and common-mode rejection. Use Value: 850 µV max input offset ensures <0.02% full-scale error across temperature; GND-referenced input simplifies shunt placement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434IDR | Higher supply current (125 µA/channel), wider GBW (2.2 MHz), no rail-to-rail input | Better for higher-speed active filters but consumes >3× more power | Select when bandwidth >100 kHz is required and battery life is secondary |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, 17 µA/channel, rail-to-rail I/O | Superior DC precision for long-term stability; higher cost and lower noise floor (5.5 nV/√Hz) | Select when offset drift <0.1 µV/°C is mandatory over –40°C to +125°C |
Compared with TLV2434IDR and OPA2333AIDR, the TLC2254AIPWR offers the lowest quiescent current among qualified industrial-grade quad op-amps with rail-to-rail output, making it optimal for always-on sensor nodes where energy efficiency outweighs ultra-low drift or high bandwidth.
Availability
TLC2254AIPWR is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, automotive cabin climate controllers, and battery-powered IoT edge nodes requiring stable component supply across extended temperature ranges.
Supply support for TLC2254AIPWR 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 since 1930.
The TLC225x family was engineered specifically for ultra-low-power, rail-to-rail output signal conditioning in space-constrained, battery-operated systems - targeting industrial automation, portable instrumentation, and automotive subsystems.
FAQ
What is the maximum supply voltage rating for TLC2254AIPWR?
The TLC2254AIPWR has an absolute maximum supply voltage rating of ±8 V for split-supply operation or 16 V for single-supply operation. Exceeding these limits risks permanent damage. Recommended operating range is ±2.2 V to ±8 V or 4.4 V to 16 V, with stable performance verified across this span in the datasheet's electrical characteristics tables.
Does TLC2254AIPWR support true rail-to-rail input operation?
No, the TLC2254AIPWR provides rail-to-rail *output* swing but not rail-to-rail input. Its common-mode input voltage range extends to the negative rail (VDD–/GND) but stops 1.5 V below the positive rail (VDD+ – 1.5 V) under typical conditions. This design balances input stage headroom with output dynamic range for low-voltage operation.
Can TLC2254AIPWR drive capacitive loads directly?
The TLC2254AIPWR is stable with up to 100 pF capacitive load when configured for unity gain, as confirmed by 63° phase margin measurements. For loads exceeding 100 pF, external isolation resistance (e.g., 10–100 Ω in series with output) is recommended to maintain stability and prevent peaking or oscillation in precision applications.
What is the input offset voltage specification for TLC2254AIPWR over temperature?
The TLC2254AIPWR ('A' grade) guarantees a maximum input offset voltage of 850 µV at TA = 25°C and 1000 µV over the full –40°C to +125°C operating range. Its temperature coefficient is 0.5 µV/°C, meaning offset drift remains tightly bounded - critical for uncalibrated systems operating across wide ambient conditions.
How does TLC2254AIPWR compare to the standard TLC2254IPWR variant?
The 'A' suffix in TLC2254AIPWR denotes tighter input offset voltage specifications: 850 µV max at 25°C versus 1500 µV max for the base TLC2254IPWR. Both share identical pinout, package, supply current (35 µA/channel), noise (19 nV/√Hz), and temperature range (–40°C to +125°C), making the 'A' version a drop-in upgrade for higher-precision designs without layout changes.
TLC2254AIPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.12V/µs
- Gain Bandwidth Product:
- 210 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 160µA (x4 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC2254AIPWR FAQ
1.How can I place an order for TLC2254AIPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254AIPWR 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 TLC2254AIPWR reliable?
The price and inventory of TLC2254AIPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254AIPWR is usually 5 days.
3.What payment methods are accepted for TLC2254AIPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254AIPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254AIPWR?
TLC2254AIPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254AIPWR 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 TLC2254AIPWR?
For technical support, including TLC2254AIPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254AIPWR requirements.
6.How does Aetrix verify that TLC2254AIPWR is sourced from the original manufacturer or authorized distributors?
All TLC2254AIPWR 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 TLC2254AIPWR meets industry standards.
7.What is the process for return or replacement of TLC2254AIPWR?
All TLC2254AIPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254AIPWR, 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 TLC2254AIPWR part is unused and in its original packaging.
Return procedure for TLC2254AIPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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