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Texas Instruments TLC2254CPW
- Part No.:
- TLC2254CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2254CPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:270
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Product details
Overview
TLC2254CPW 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, enabling precision signal conditioning in battery-powered sensor interfaces and single-supply data acquisition systems.
For engineers reviewing the TLC2254CPW datasheet, TLC2254CPW pinout, TLC2254CPW application, or TLC2254CPW equivalent, key selection criteria include its rail-to-rail output swing (enabling full dynamic range with 5 V or ±5 V supplies), low-input-offset-voltage variants (TLC2254A series), and compatibility with high-impedance sources such as piezoelectric transducers and pH electrodes.
Technical Context
The TLC2254CPW uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining micropower operation. Its input stage includes high-impedance CMOS transistors with common-mode input range extending to the negative rail, supporting true single-supply operation down to 4.4 V total supply.
Each of the four amplifiers features fully characterized performance across 0°C to 70°C, with guaranteed specifications for input offset voltage (≤1500 µV max), CMRR (≥70 dB), and supply voltage rejection ratio (≥80 dB) - making it suitable for moderate-precision analog front-ends where power and input impedance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current (per channel) | 35 µA typ - enables multi-channel sensing in energy-constrained IoT nodes and portable medical devices |
| Input Bias Current | 1 pA typ - preserves signal integrity when interfacing with >1 GΩ source impedances (e.g., glass pH electrodes) |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level sensor outputs without excessive filtering |
| Rail-to-Rail Output Swing | Within 20 mV of rails (at 5 V, 100 kΩ load) - maximizes ADC utilization in 12-bit+ single-supply systems |
| Common-Mode Input Range | Includes negative rail (VDD–/GND) - allows direct connection to ground-referenced sensors without level-shifting circuitry |
| Gain-Bandwidth Product | 0.2 MHz - sufficient for DC-coupled instrumentation, filter stages, and anti-aliasing up to ~20 kHz |
| Input Offset Voltage | 1500 µV max (TLC2254C) - defines minimum resolvable differential signal in open-loop or high-gain configurations |
Pinout & Package
Package: 14-pin TSSOP (PW), 5.0 mm × 4.4 mm, 0.65 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±50 mA; rail-to-rail swing supports full-scale ADC input |
| 2 | IN– A | Inverting input - high-impedance node (10¹² Ω); sensitive to PCB leakage and EMI coupling |
| 3 | IN+ A | Non-inverting input - referenced to VDD–/GND; accepts signals down to negative rail |
| 4 | VDD+ | Positive supply - accepts 4.4 V to 16 V (single) or ±2.2 V to ±8 V (split); decoupling required within 1 cm |
| 5 | IN+ B | Non-inverting input of amplifier B - electrically isolated; shares no internal nodes with A |
| 6 | IN– B | Inverting input of amplifier B - matched bias current ensures low offset in differential configurations |
| 7 | OUT B | Amplifier B output - identical drive capability and rail-to-rail behavior as OUT A |
| 8 | VDD–/GND | Negative supply or ground reference - return path for all four amplifiers; must be low-impedance |
| 9 | OUT C | Amplifier C output - independent channel; usable for multi-stage gain or parallel buffering |
| 10 | IN– C | Inverting input of amplifier C - layout symmetry recommended vs. IN– A/B for matching |
| 11 | IN+ C | Non-inverting input of amplifier C - supports independent sensor channel or reference buffer |
| 12 | VDD+ | Positive supply (redundant connection) - ties to Pin 4; improves supply current distribution |
| 13 | IN+ D | Non-inverting input of amplifier D - enables 4-channel simultaneous sampling or multi-function analog processing |
| 14 | OUT D | Amplifier D output - final channel; commonly used for reference voltage buffering or active filtering |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 20 mV of VDD+ and VDD– under 100 kΩ load - eliminates need for dual supplies in 5 V systems |
| Ultra-low input bias current | 1 pA typical - prevents signal degradation in high-Z sensor circuits (e.g., electrochemical cells) |
| Low-noise architecture | 19 nV/√Hz at 1 kHz - 4× lower than legacy TLC27L4, enabling cleaner signal chain SNR |
| Single- and split-supply operation | Fully specified from VDD = 4.4 V to 16 V or VDD± = ±2.2 V to ±8 V - simplifies design reuse across platforms |
| Macromodel included | SPICE model provided by TI - accelerates simulation of stability, settling time, and loop response |
Applications
| Piezoelectric Sensor Interface | Portable pH Meter Front-End |
|---|---|
Use Scenario: Amplifying charge-mode output from accelerometers or ultrasonic transducers with minimal loading. IC Role / Device Role / Timing Role: First-stage charge-to-voltage converter and buffer, operating from coin-cell supply. Use Value: 1 pA input bias avoids signal droop; rail-to-rail output drives 12-bit SAR ADC directly with 0–5 V full scale. | Use Scenario: Conditioning mV-level output from glass pH electrode in handheld field instrument. IC Role / Device Role / Timing Role: High-impedance unity-gain buffer isolating electrode from downstream circuitry. Use Value: Input bias current <1 pA prevents electrode polarization; low noise preserves resolution below 0.01 pH unit. |
| Multi-Channel Data Logger | Low-Power Thermocouple Amplifier |
Use Scenario: Simultaneous analog conditioning of 4 temperature, pressure, and humidity sensor outputs. IC Role / Device Role / Timing Role: Quad-channel signal conditioner with shared supply and compact layout. Use Value: 140 µA total quiescent current (35 µA × 4) extends battery life; matched channels reduce calibration overhead. | Use Scenario: Cold-junction compensation and gain stage for Type-K thermocouple in wireless sensor node. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain. Use Value: Rail-to-rail output accommodates wide thermocouple range (–5 mV to +60 mV) after cold-junction offset correction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail, low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434IPW | Higher drive (100 mA), higher supply current (600 µA total), wider GBW (2.2 MHz) | Better for driving capacitive loads or higher-speed filtering; less suitable for ultra-low-power designs | Select TLV2434IPW when output drive or bandwidth exceeds TLC2254CPW capabilities |
| LMV324IPW | Lower cost, higher input offset (3 mV max), rail-to-rail input/output, 120 µA per channel | Acceptable for non-precision industrial monitoring; not recommended for high-Z or low-noise applications | Choose LMV324IPW for cost-sensitive, moderate-accuracy applications where power is secondary |
Compared with TLV2434IPW and LMV324IPW, the TLC2254CPW uniquely balances ultra-low power (35 µA/channel), sub-picoampere input bias, and 19 nV/√Hz noise - making it optimal for battery-operated, high-impedance sensor systems where precision and longevity are co-prioritized.
Availability
TLC2254CPW is available at Aetrix Electronics and suitable for portable medical devices, environmental sensor networks, and industrial data loggers requiring stable component supply over extended production lifecycles.
Supply support for TLC2254CPW 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 delivering analog, embedded processing, and connectivity solutions since 1930.
The TLC225x family was engineered for micropower, rail-to-rail signal conditioning in battery-powered instrumentation - targeting applications where input impedance, noise, and supply current constrain traditional op-amp selection.
FAQ
What is the maximum supply voltage for the TLC2254CPW?
The TLC2254CPW supports a maximum total supply voltage of 16 V in single-supply mode (VDD+ to VDD–/GND) or ±8 V in split-supply mode. Absolute maximum ratings specify ±8 V on each supply rail; operation beyond these limits risks permanent damage. Recommended operating range is ±2.2 V to ±8 V for split supplies or 4.4 V to 16 V for single supplies - verified across the 0°C to 70°C commercial temperature range.
Does the TLC2254CPW support rail-to-rail input?
No, the TLC2254CPW provides rail-to-rail *output* swing but does not feature 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 allows ground-referenced inputs in single-supply systems but requires input signals to remain ≥1.5 V below VDD+ - a key distinction from true rail-to-rail input amplifiers like the TLV2464.
Can the TLC2254CPW drive an ADC input directly?
Yes, the TLC2254CPW can drive SAR and delta-sigma ADC inputs directly in single-supply systems. Its rail-to-rail output swing (within 20 mV of VDD+ and VDD– at 100 kΩ load) matches standard 5 V or 3.3 V ADC reference ranges, and its low output impedance (<200 Ω at 25 kHz) minimizes settling errors. For high-resolution (>14-bit) or high-speed (>1 MSPS) ADCs, external RC filtering may still be needed to limit noise bandwidth and ensure full-scale accuracy.
What is the input offset voltage specification for the TLC2254CPW?
The TLC2254CPW (C-suffix, commercial grade) has a maximum input offset voltage of 1500 µV at 25°C and 1750 µV across the full 0°C to 70°C operating range. This value is guaranteed per device - not typical. For applications requiring tighter offset control, the pin-compatible TLC2254ACPW variant offers ≤850 µV max at 25°C and ≤1000 µV over temperature, with identical package, pinout, and electrical interface.
Is the TLC2254CPW suitable for piezoelectric sensor amplification?
Yes, the TLC2254CPW is well-suited for piezoelectric sensor amplification due to its 1 pA typical input bias current, which prevents charge leakage from high-impedance sensor elements, and its 19 nV/√Hz input voltage noise at 1 kHz, which preserves signal fidelity in vibration and acoustic sensing. Its rail-to-rail output enables direct interfacing with 5 V ADCs, and quad configuration allows integration of charge amplifier, filter, and buffer stages in one package - reducing board area and inter-stage noise coupling.
TLC2254CPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC2254CPW FAQ
1.How can I place an order for TLC2254CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254CPW 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 TLC2254CPW reliable?
The price and inventory of TLC2254CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254CPW is usually 5 days.
3.What payment methods are accepted for TLC2254CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254CPW?
TLC2254CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254CPW 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 TLC2254CPW?
For technical support, including TLC2254CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254CPW requirements.
6.How does Aetrix verify that TLC2254CPW is sourced from the original manufacturer or authorized distributors?
All TLC2254CPW 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 TLC2254CPW meets industry standards.
7.What is the process for return or replacement of TLC2254CPW?
All TLC2254CPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254CPW, 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 TLC2254CPW part is unused and in its original packaging.
Return procedure for TLC2254CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2254CPW Tags
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