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Texas Instruments TLC2254AIDR
- Part No.:
- TLC2254AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2254AIDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,385
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Product details
Overview
TLC2254AIDR from Texas Instruments is a quad rail-to-rail output, very low-power operational amplifier in the Advanced LinCMOS™ family. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and 850 µV maximum input offset voltage at 25°C. Designed for single- or split-supply battery-powered signal conditioning, it interfaces directly with precision ADCs in portable instrumentation and remote sensor nodes.
For engineers reviewing the TLC2254AIDR datasheet, TLC2254AIDR pinout, TLC2254AIDR application, or TLC2254AIDR equivalent, key selection criteria include rail-to-rail output swing (±4.8 V at ±5 V supplies), ultra-low input bias current (1 pA typ), common-mode input range extending to the negative rail, and guaranteed performance over –40°C to 125°C.
Technical Context
The TLC2254AIDR uses an advanced LinCMOS™ process enabling rail-to-rail output swing while maintaining micropower operation. Its input stage features high-impedance CMOS transistors delivering 10¹² Ω differential and common-mode input resistance, supporting high-impedance sources like piezoelectric sensors without loading error.
It operates across ±2.2 V to ±8 V dual supplies or 4.4 V to 16 V single supply, with common-mode input voltage range from VDD– to (VDD+ – 1.5 V). The device exhibits 0.2 MHz gain-bandwidth product, 63° phase margin, and 15 dB gain margin under standard test conditions (RL = 50 kΩ, CL = 100 pF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 140–250 µA total (35–62.5 µA per channel) - enables multi-channel sensing in energy-constrained systems |
| Input Offset Voltage | ≤850 µV max at 25°C - supports DC-coupled precision amplification without trimming |
| Input Bias Current | 1 pA typical - preserves signal integrity from high-impedance sources (e.g., pH electrodes) |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than prior micropower CMOS op-amps for cleaner small-signal gain |
| Output Swing | Rail-to-rail (e.g., ±4.8 V at ±5 V) - maximizes dynamic range into ADCs and low-voltage logic |
| Common-Mode Range | Includes negative rail (VDD–) - allows direct interface with ground-referenced transducers |
| Operating Temp | –40°C to +125°C - qualified for automotive and industrial environments |
Pinout & Package
Package: SOIC-14 (D package), tape-and-reel (R suffix), RoHS-compliant, 1.27 mm pitch.
| 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 CMOS 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 for second channel |
| 6 | IN– B | Inverting input of Amp B - matched to Pin 2 for differential pair use |
| 7 | OUT B | Amplifier B output - fully independent rail-to-rail output stage |
| 8 | OUT C | Amplifier C output - third identical channel, no shared internal nodes |
| 9 | IN– C | Inverting input of Amp C - electrically isolated from other channels |
| 10 | IN+ C | Non-inverting input of Amp C - supports independent sensor conditioning |
| 11 | VDD+ | Positive supply - powers all four amplifiers; accepts 4.4–16 V (single) or ±2.2–±8 V (dual) |
| 12 | IN+ D | Non-inverting input of Amp D - fourth independent input for multi-sensor systems |
| 13 | IN– D | Inverting input of Amp D - matches input specs of Pins 2/6/9 |
| 14 | OUT D | Amplifier D output - full rail-to-rail capability, decoupled from other outputs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full supply swing (e.g., 0–5 V or ±4.8 V), eliminating headroom loss before ADC sampling |
| Ultra-low input bias current | 1 pA typical enables accurate amplification of nanoamp-level currents from photodiodes or ion-selective electrodes |
| Low-noise micropower design | 19 nV/√Hz at 1 kHz with only 35 µA/channel - optimal trade-off for battery-operated precision front-ends |
| Extended temperature range | Specified from –40°C to +125°C - suitable for under-hood automotive and industrial control applications |
| Single- and split-supply operation | Fully characterized at 5 V and ±5 V - simplifies design reuse across power architecture variants |
Applications
| Portable Medical Sensors | Automotive Cabin Pressure Monitoring |
|---|---|
Use Scenario: Amplifying low-level mV outputs from MEMS pressure transducers in handheld blood pressure cuffs or pulse oximeters. IC Role / Device Role / Timing Role: Quad-channel signal conditioner - each amplifier handles one sensor path (e.g., systolic/diastolic/ambient/reference) with independent DC-coupled gain. Use Value: Rail-to-rail output ensures full utilization of 12-bit ADC input range; 1 pA bias current prevents offset drift in high-impedance bridge configurations. | Use Scenario: Conditioning analog outputs from cabin air pressure sensors in HVAC control modules for climate regulation feedback. IC Role / Device Role / Timing Role: Precision buffer and level-shifter - converts sensor output to 0–5 V range compatible with microcontroller ADCs while rejecting supply ripple. Use Value: 850 µV max VIO and 95 dB SVR ensure stable readings across 12 V battery fluctuations; –40°C to 125°C rating supports under-dash mounting. |
| Industrial Remote Temperature Nodes | Low-Power Data Acquisition Systems |
Use Scenario: Signal conditioning for thermistor or RTD bridges in wireless sensor networks deployed in factory floors or utility substations. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier front-end - provides gain, filtering, and rail-compatible output for SAR ADCs. Use Value: 35 µA/channel supply current extends battery life to >5 years on coin cells; common-mode range to VDD– supports grounded sensor configurations. | Use Scenario: Multi-channel analog front-end in portable oscilloscopes or handheld multimeters requiring simultaneous voltage/current measurement. IC Role / Device Role / Timing Role: Quad-channel programmable gain stage - each amplifier configured as non-inverting gain block (G = 1, 10, 100, 1000) with shared reference. Use Value: Matched channel specs (VIO, noise, bandwidth) ensure consistent accuracy across channels; SOIC-14 footprint enables compact PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2254CDR | Same architecture but 0°C to 70°C temp range; 1500 µV max VIO vs. 850 µV | Suitable for commercial-grade portable electronics, not automotive or extended-temp industrial | Select when cost sensitivity outweighs temperature or offset requirements |
| TLV2434IDR | Higher supply current (125 µA/channel), wider GBW (2.2 MHz), lower VIO (150 µV max) | Better for higher-speed signal chains (>10 kHz) where power budget allows | Choose when slew rate (0.5 V/µs) or offset stability is critical over micropower operation |
Compared with TLC2254CDR, the TLC2254AIDR offers tighter offset and extended temperature support at identical pinout and quiescent power; versus TLV2434IDR, it trades speed and offset for 3.5× lower supply current - making it optimal for always-on, long-life sensor nodes.
Availability
TLC2254AIDR is available at Aetrix Electronics and suitable for portable medical devices, automotive cabin sensors, and industrial remote monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2254AIDR 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 heritage in precision op-amp design and manufacturing excellence.
The TLC225x family was engineered for ultra-low-power, rail-to-rail signal conditioning in battery-constrained and harsh-environment applications - targeting medical wearables, automotive subsystems, and industrial IoT endpoints.
FAQ
What is the maximum supply voltage for TLC2254AIDR?
The TLC2254AIDR supports absolute maximum supply voltages of +8 V on VDD+ and –8 V on VDD–, with recommended operating range of ±2.2 V to ±8 V for dual supply or 4.4 V to 16 V for single supply. Exceeding these limits risks permanent damage per the Absolute Maximum Ratings table in the SLOS176D datasheet.
Does TLC2254AIDR support true rail-to-rail input?
No, the TLC2254AIDR features rail-to-rail *output* swing but its common-mode input voltage range extends only to VDD– and up to (VDD+ – 1.5 V). Input signals must remain within this range to avoid phase reversal or increased distortion - confirmed by VICR specifications in both single- and dual-supply operating conditions.
Can TLC2254AIDR drive capacitive loads directly?
The TLC2254AIDR is stable with up to 100 pF capacitive load when driving into 50 kΩ, as verified by 63° phase margin and 15 dB gain margin in the datasheet. For larger capacitive loads (e.g., >200 pF), external isolation resistance (≥100 Ω) is required between the output and load to maintain stability and prevent oscillation.
What is the typical input offset voltage drift over temperature for TLC2254AIDR?
The TLC2254AIDR has a temperature coefficient of input offset voltage (αVIO) of 0.5 µV/°C, measured from 25°C to 85°C. This means VIO changes by approximately ±0.5 µV per °C deviation from 25°C - resulting in ≤0.5 mV total drift across the full –40°C to +125°C operating range, well within its 850 µV max specification at 25°C.
Is TLC2254AIDR pin-compatible with TLC2254CDR?
Yes, the TLC2254AIDR and TLC2254CDR share identical SOIC-14 (D) package dimensions, pinout, and electrical interface. They differ only in temperature grade (–40°C to +125°C vs. 0°C to +70°C) and input offset voltage specification (850 µV max vs. 1500 µV max), allowing drop-in replacement where extended temperature operation is required.
TLC2254AIDR 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
TLC2254AIDR FAQ
1.How can I place an order for TLC2254AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254AIDR 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 TLC2254AIDR reliable?
The price and inventory of TLC2254AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254AIDR is usually 5 days.
3.What payment methods are accepted for TLC2254AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254AIDR?
TLC2254AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254AIDR 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 TLC2254AIDR?
For technical support, including TLC2254AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254AIDR requirements.
6.How does Aetrix verify that TLC2254AIDR is sourced from the original manufacturer or authorized distributors?
All TLC2254AIDR 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 TLC2254AIDR meets industry standards.
7.What is the process for return or replacement of TLC2254AIDR?
All TLC2254AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254AIDR, 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 TLC2254AIDR part is unused and in its original packaging.
Return procedure for TLC2254AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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