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Texas Instruments TLC2254IDR
- Part No.:
- TLC2254IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2254IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:12,425
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Product details
Overview
TLC2254IDR from Texas Instruments is a quad rail-to-rail output, very low-power operational amplifier in an SOIC-14 package. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and 1 pA typical input bias current, enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC2254IDR datasheet, TLC2254IDR pinout, TLC2254IDR application, or TLC2254IDR equivalent, this page provides verified electrical specifications, thermal operating range (–40°C to 125°C), rail-to-rail output swing behavior, and validated alternative options for low-noise, micropower op-amp selection in single-supply analog front-ends.
Technical Context
The TLC2254IDR uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low input bias current (1 pA typ) and common-mode input voltage range extending to the negative rail. Its architecture supports stable operation with capacitive loads up to 100 pF and exhibits 63° phase margin at unity gain with 50 kΩ load and 100 pF compensation.
It is fully specified for both single-supply (VDD = 5 V) and split-supply (±5 V) operation, with input offset voltage ≤1500 µV (max) over full temperature range and CMRR ≥70 dB. The device includes ESD protection and internal trimming for offset stability across –40°C to 125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current per Channel | 35 µA typ - enables multi-channel, long-life battery operation in portable equipment |
| Input Bias Current | 1 pA typ - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - supports low-noise signal conditioning without external filtering overhead |
| Output Swing | Rail-to-rail - maximizes dynamic range into ADCs or low-voltage logic interfaces |
| Common-Mode Input Range | Includes negative rail - allows direct sensing of signals referenced to ground in single-supply systems |
| Operating Temperature | –40°C to 125°C - qualified for industrial and automotive under-hood applications |
| Gain-Bandwidth Product | 0.2 MHz - suitable for DC-coupled instrumentation, filters, and slow-settling sensor buffers |
Pinout & Package
Package: SOIC-14 (D package), tape-and-reel (R suffix), surface-mount, 8.65 mm × 3.91 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±50 mA, rail-to-rail swing |
| 2 | IN– A | Inverting input of Amp A - high-impedance node (10¹² Ω) |
| 3 | IN+ A | Non-inverting input of Amp A - accepts signals down to VDD– |
| 4 | VDD– / GND | Negative supply or ground reference - common return for all four amplifiers |
| 5 | IN+ B | Non-inverting input of Amp B - independent high-Z input |
| 6 | IN– B | Inverting input of Amp B - matched to Pin 2 for dual-channel symmetry |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A |
| 8 | OUT C | Amplifier C output - third independent rail-to-rail output |
| 9 | IN– C | Inverting input of Amp C - identical electrical characteristics to Pins 2 and 6 |
| 10 | IN+ C | Non-inverting input of Amp C - supports single-ended or differential configurations |
| 11 | VDD+ | Positive supply - operates from ±2.2 V to ±8 V or 4.4 V to 16 V single supply |
| 12 | IN+ D | Non-inverting input of Amp D - fourth independent input channel |
| 13 | IN– D | Inverting input of Amp D - fully characterized across temperature and supply |
| 14 | OUT D | Amplifier D output - completes quad configuration with no shared internal nodes |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range into 100 kΩ loads, minimizing headroom loss in 3.3 V or 5 V systems |
| Ultra-low input bias current | 1 pA typ ensures minimal loading error on high-Z transducers (e.g., pH electrodes, photodiodes) |
| Low input voltage noise | 19 nV/√Hz at 1 kHz reduces integrated noise in bandwidth-limited sensor paths |
| Single- and split-supply operation | Validated from ±2.2 V to ±8 V and 4.4 V to 16 V - eliminates need for dual supplies in mixed-signal designs |
| Extended temperature range | Specified from –40°C to 125°C - supports deployment in engine control units and industrial PLCs |
Applications
| Portable Gas Sensor Front-End | Industrial RTD Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level mV outputs from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Quad buffer and gain stage with rail-to-rail output driving 12-bit SAR ADC inputs. Use Value: 35 µA per channel extends battery life beyond 5 years; 1 pA input bias prevents drift in high-resistance sensor elements. | Use Scenario: Linearizing and amplifying 100 Ω Pt100 RTD bridge outputs in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched input pairs and low-offset drift. Use Value: 1500 µV max input offset and 0.5 µV/°C TC ensure <0.1% measurement error across –25°C to 85°C ambient. |
| Automotive Cabin Air Quality Monitor | Handheld Medical Pulse Oximeter Analog Path |
Use Scenario: Signal conditioning for NDIR CO₂ and VOC sensors in HVAC control units exposed to under-dash temperatures. IC Role / Device Role / Timing Role: Quad op-amp performing offset correction, filtering, and ADC driver functions in AEC-Q100-compliant design. Use Value: –40°C to 125°C rating and 70 dB CMRR reject common-mode noise from switching regulators and motor drivers. | Use Scenario: Amplifying weak AC-coupled photodiode currents (<100 nA) while rejecting ambient light interference. IC Role / Device Role / Timing Role: Transimpedance amplifier + DC offset removal + low-pass filter in compact wearable form factor. Use Value: 19 nV/√Hz noise floor and rail-to-rail output preserve SNR in 10-bit ADC digitization of plethysmographic waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power, rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2434IDR | Higher supply current (125 µA/ch), higher drive capability (60 mA), wider GBW (2.2 MHz) | Better suited for driving heavier capacitive loads or faster settling requirements | Select when slew rate >0.12 V/µs or output current >50 mA is required |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, lower noise (12 nV/√Hz), higher cost | Required for sub-µV offset stability over temperature in precision weigh scales or medical diagnostics | Select when long-term offset drift must be <0.5 µV over 10-year field life |
Compared with TLV2434IDR and OPA2333AIDR, the TLC2254IDR offers the lowest quiescent power (35 µA/ch) and highest input impedance (10¹² Ω) in its class, making it optimal for ultra-low-power, high-Z sensor interfacing where speed and zero-drift are secondary to energy efficiency and bias current.
Availability
TLC2254IDR is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and automotive cabin air quality monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2254IDR 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 for industrial, automotive, and personal electronics markets.
The TLC225x family was designed specifically for micropower, rail-to-rail output precision amplification in battery-operated and thermally constrained systems, emphasizing low input bias current and noise performance without sacrificing output drive.
FAQ
What is the maximum supply voltage for the TLC2254IDR?
The TLC2254IDR supports absolute maximum supply voltages of +8 V on VDD+ and –8 V on VDD–, with recommended operating range from ±2.2 V to ±8 V (split supply) or 4.4 V to 16 V (single supply). Operation beyond ±8 V risks permanent damage, and derating applies above 25°C ambient per the Dissipation Rating Table.
Does the TLC2254IDR support true rail-to-rail input?
No, the TLC2254IDR features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD–); the positive limit is VDD+ – 1.5 V. This allows ground-referenced inputs in single-supply systems but excludes full rail-to-rail input capability found in newer generations.
What is the input offset voltage specification for the TLC2254IDR over temperature?
The TLC2254IDR has a maximum input offset voltage of 1750 µV over its full operating range (–40°C to 125°C), with a typical value of 200 µV at 25°C. The I-suffix variant is not the enhanced "A" grade - for 850 µV max, the TLC2254AIDR would be required instead.
Can the TLC2254IDR drive capacitive loads directly?
Yes, the TLC2254IDR is stable with capacitive loads up to 100 pF when configured with a 50 kΩ load, as confirmed by 63° phase margin at unity gain. For larger capacitive loads (>100 pF), external isolation resistance or feedback network adjustment is recommended to maintain stability.
Is the TLC2254IDR qualified for automotive applications?
The TLC2254IDR is rated for operation from –40°C to 125°C and appears in TI's Q-temp automotive-grade listings, but it is not AEC-Q100 qualified. For production automotive use, the pin-compatible TLC2254AQD (Q-suffix) or TLC2254AQPW should be selected instead.
TLC2254IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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-SOIC
TLC2254IDR FAQ
1.How can I place an order for TLC2254IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254IDR 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 TLC2254IDR reliable?
The price and inventory of TLC2254IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254IDR is usually 5 days.
3.What payment methods are accepted for TLC2254IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254IDR?
TLC2254IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254IDR 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 TLC2254IDR?
For technical support, including TLC2254IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254IDR requirements.
6.How does Aetrix verify that TLC2254IDR is sourced from the original manufacturer or authorized distributors?
All TLC2254IDR 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 TLC2254IDR meets industry standards.
7.What is the process for return or replacement of TLC2254IDR?
All TLC2254IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254IDR, 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 TLC2254IDR part is unused and in its original packaging.
Return procedure for TLC2254IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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