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Texas Instruments TLV2254IN
- Part No.:
- TLV2254IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2254IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,518
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Product details
Overview
TLV2254IN from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage, micropower operation. It delivers 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and 34 µA per channel supply current across a 2.7 V to 8 V supply range. Its common-mode input voltage includes the negative rail and supports single-supply interfacing with ADCs in battery-powered sensor signal conditioning.
For engineers reviewing the TLV2254IN datasheet, TLV2254IN pinout, TLV2254IN application, or TLV2254IN equivalent, key selection criteria include its rail-to-rail output swing, sub-1 pA input bias current for high-impedance source interfacing, 850 µV max input offset voltage (A-grade), and compatibility with 3 V–5 V portable systems requiring low-noise, low-power amplification.
Technical Context
The TLV2254IN uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining CMOS-level input impedance (>10¹² Ω) and ultra-low input bias current. Its architecture supports stable unity-gain operation with 63° phase margin and 15 dB gain margin under 50 kΩ//100 pF load conditions.
It is fully characterized from −40°C to +125°C at both 3 V and 5 V supplies, with guaranteed common-mode input range extending to VDD− and output swing within 100 mV of each rail at 500 µA load. The device exhibits 0.187 MHz gain-bandwidth product and 0.07–0.12 V/µs slew rate depending on supply and output voltage swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 8 V - enables direct use in 3 V and 5 V battery-powered systems without level-shifting. |
| Input Bias Current | 1 pA typ - preserves signal integrity when amplifying from piezoelectric or pH sensors with >1 GΩ source impedance. |
| Input Voltage Noise | 19 nV/√Hz @ 1 kHz - supports precision low-frequency measurement where thermal noise dominates. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–3 V or 0–5 V reference rails. |
| Quiescent Current | 34 µA per channel (136 µA total) - extends battery life in always-on remote sensing nodes. |
| Input Offset Voltage | 850 µV max (A-grade) - ensures <0.1% gain error in 1 V full-scale instrumentation front-ends. |
| Common-Mode Range | Includes VDD− - allows direct DC coupling to ground-referenced transducers without bias networks. |
Pinout & Package
TLV2254IN is supplied in a 14-pin plastic DIP (N) package with through-hole mounting and industry-standard pin spacing (0.300″ wide body). The package provides mechanical robustness and thermal performance suitable for industrial temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to ±50 mA; rail-to-rail swing supports direct ADC interface. |
| 2 | IN1− | Inverting input of Amp 1 - high-impedance node (10¹² Ω) for precision feedback networks. |
| 3 | IN1+ | Non-inverting input of Amp 1 - accepts signals down to VDD−; enables single-supply sensor biasing. |
| 4 | VDD− / GND | Negative supply or ground reference - serves as common return for all four amplifiers and input sources. |
| 5 | IN2+ | Non-inverting input of Amp 2 - electrically isolated from other inputs; supports independent signal paths. |
| 6 | IN2− | Inverting input of Amp 2 - matched to Pin 2 for consistent AC/DC performance across channels. |
| 7 | OUT2 | Amplifier 2 output - identical electrical specs to Pin 1; enables dual-channel signal processing in one package. |
| 8 | OUT3 | Amplifier 3 output - shares same die with other channels; no crosstalk degradation beyond spec limits. |
| 9 | IN3− | Inverting input of Amp 3 - layout symmetry ensures matched parasitics across all four op-amps. |
| 10 | IN3+ | Non-inverting input of Amp 3 - referenced to same VDD− as all inputs; maintains common-mode consistency. |
| 11 | VDD+ | Positive supply - powers all four amplifiers; decoupling capacitor required at pin for stability. |
| 12 | IN4+ | Non-inverting input of Amp 4 - supports fourth independent channel without external buffering. |
| 13 | IN4− | Inverting input of Amp 4 - matches input capacitance (8 pF) and resistance specs of other inputs. |
| 14 | OUT4 | Amplifier 4 output - completes quad configuration; enables multi-sensor analog front-end integration. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range to load - eliminates need for dual supplies in data acquisition systems. |
| Ultra-low input bias current (1 pA) | Minimizes voltage error across high-value feedback resistors - critical for >1 MΩ gain-setting networks. |
| Low input voltage noise (19 nV/√Hz) | Enables accurate amplification of microvolt-level sensor outputs without dominating system noise floor. |
| Single-supply operation from 2.7 V | Supports direct integration into Li-ion (3.0–3.7 V) and two-AA (3.0 V) powered devices. |
| Specified over −40°C to +125°C | Validated for automotive cabin and industrial control environments without derating. |
Applications
| Portable ECG Monitor Front-End | Piezoelectric Vibration Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying low-amplitude, high-impedance biopotential signals from dry electrodes in battery-operated wearable ECG units. IC Role / Device Role / Timing Role: Quad TLV2254IN configures three amplifiers as instrumentation amplifier stages and one as reference buffer. Use Value: 1 pA input bias current prevents electrode polarization drift; rail-to-rail output maximizes ADC utilization of 0–3.3 V input range. | Use Scenario: Conditioning charge-mode output from industrial accelerometers in predictive maintenance gateways. IC Role / Device Role / Timing Role: First-stage charge amplifier with ultra-high input impedance, followed by filtering and level-shifting stages. Use Value: 10¹² Ω input resistance preserves signal fidelity from >100 MΩ piezo sources; low 19 nV/√Hz noise maintains SNR in sub-100 Hz vibration bands. |
| Remote Temperature Transmitter | Low-Power Gas Sensor Interface |
Use Scenario: Amplifying millivolt-level outputs from RTD or thermistor bridges in 4–20 mA loop-powered field instruments. IC Role / Device Role / Timing Role: Precision gain stage with programmable offset correction using one amplifier channel. Use Value: 850 µV max input offset ensures <0.1°C error in 0–100°C range; 34 µA/channel current enables >10-year battery life. | Use Scenario: Biasing and amplifying electrochemical gas sensor outputs in handheld air quality analyzers. IC Role / Device Role / Timing Role: Transimpedance amplifier for picoamp-level sensor currents, plus reference and filter stages. Use Value: Sub-1 pA input bias avoids loading nanoamp sensor currents; rail-to-rail output accommodates variable reference voltages across sensor families. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2254AIN | Same pinout and package; tighter 850 µV max input offset voltage (vs. 1500 µV for TLV2254IN). | Required for <0.05% gain accuracy in precision bridge amplification. | Select TLV2254AIN when offset-critical applications demand guaranteed ≤850 µV VIO at 25°C. |
| TLV2434IN | Higher output drive (±25 mA vs. ±50 mA), wider input voltage range (VDD− to VDD+−1.3 V), but higher quiescent current (125 µA/channel). | Suitable for driving heavier loads or higher-voltage signal chains where power budget allows. | Choose TLV2434IN when interfacing with 10 kΩ ADC inputs or requiring >3 V output swing at full load. |
Compared with TLV2254AIN, the TLV2254IN offers lower cost and sufficient offset for most industrial sensor interfaces, while TLV2434IN trades micropower efficiency for enhanced output capability-making TLV2254IN optimal for battery-constrained, low-noise, rail-to-rail applications.
Availability
TLV2254IN is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, battery-powered test equipment, and environmental monitoring systems requiring stable component supply across extended temperature ranges.
Supply support for TLV2254IN 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 and embedded processing technologies, with decades of expertise in precision op-amps and low-power signal chain solutions.
The TLV2254IN belongs to TI's TLV225x family of rail-to-rail output CMOS op-amps, designed specifically for micropower, low-noise, single-supply operation in portable and remote-sensing applications.
FAQ
What is the maximum operating temperature range for the TLV2254IN?
The TLV2254IN is rated for continuous operation from −40°C to +125°C, meeting industrial and automotive under-hood requirements. This range is validated per the manufacturer's recommended operating conditions and absolute maximum ratings, with full electrical specifications guaranteed across the entire span.
Does the TLV2254IN support true rail-to-rail input common-mode range?
No-the TLV2254IN features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD−); the upper limit is VDD+ −1.3 V at 3 V supply and VDD+ −1.3 V at 5 V supply. Input signals must remain within this specified VICR to avoid phase reversal or increased distortion.
Can the TLV2254IN drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes-the TLV2254IN sustains rail-to-rail output swing into 10 kΩ loads at room temperature and across its full operating range. At 500 µA load, output swing remains within 100–150 mV of each rail; heavier loads reduce swing margin, but 10 kΩ presents negligible current draw (<500 µA at 5 V), preserving full dynamic range.
How does the noise performance of the TLV2254IN compare to the TLV2324?
The TLV2254IN delivers 19 nV/√Hz input voltage noise at 1 kHz-four times lower than the TLV2324's typical 75 nV/√Hz. This improvement directly enhances resolution in low-frequency sensor applications such as strain gauge or thermopile amplification where 1/f noise dominates.
Is the TLV2254IN pin-compatible with the TLV2254ID or TLV2254IPWLE packages?
No-TLV2254IN (14-pin DIP) is not pin-compatible with TLV2254ID (8-pin SOIC) or TLV2254IPWLE (14-pin TSSOP). While all share identical internal circuitry and electrical behavior, their physical pinouts differ due to package-specific pad layouts and terminal assignments. PCB redesign is required when substituting between N, D, and PW packages.
TLV2254IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.12V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 140µA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2254IN FAQ
1.How can I place an order for TLV2254IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2254IN 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 TLV2254IN reliable?
The price and inventory of TLV2254IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2254IN is usually 5 days.
3.What payment methods are accepted for TLV2254IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2254IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2254IN?
TLV2254IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2254IN 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 TLV2254IN?
For technical support, including TLV2254IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2254IN requirements.
6.How does Aetrix verify that TLV2254IN is sourced from the original manufacturer or authorized distributors?
All TLV2254IN 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 TLV2254IN meets industry standards.
7.What is the process for return or replacement of TLV2254IN?
All TLV2254IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2254IN, 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 TLV2254IN part is unused and in its original packaging.
Return procedure for TLV2254IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2254IN Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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