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Texas Instruments TLC254BCNE4
- Part No.:
- TLC254BCNE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC254BCNE4.pdf
- Description:
- IC OPAMP GP 2.2MHZ 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:148
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Product details
Overview
TLC254BCNE4 from Texas Instruments is a LinCMOS™ quad operational amplifier optimized for low-power, single-supply operation across 1.4 V to 16 V. It delivers 2-mV max input offset voltage (VIO), 1 pA typical input bias current, and rail-to-rail common-mode input range extending to the negative rail - enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC254BCNE4 datasheet, TLC254BCNE4 pinout, TLC254BCNE4 application, or TLC254BCNE4 equivalent, key selection criteria include its ultra-low quiescent current (68 µA at 5 V), true single-supply capability down to 1.4 V, high CMRR (94 dB), and compatibility with high-impedance transducer circuits requiring minimal offset drift.
Technical Context
The TLC254BCNE4 uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input-offset voltages (2 mV max at 25°C), extremely high input impedance (>1012 Ω), and negligible input bias/offset currents (1 pA typ). Its architecture supports unity-gain stability and operates over 0°C to 70°C.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.1), rail-inclusive common-mode input range, and output swing limited only by load and supply - with no phase-reversal behavior under common-mode overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIO (max) | 2 mV at 25°C - enables high-accuracy DC-coupled amplification without trimming in low-voltage systems |
| Supply voltage | 1.4 V to 16 V - supports direct operation from single alkaline, Li-ion, or solar cells |
| IIB (typ) | 1 pA - preserves signal integrity in >1 MΩ sensor networks and electrometer-grade circuits |
| CMIR | Includes negative rail - allows ground-referenced input signals without level-shifting circuitry |
| IDD (typ) | 68 µA at 5 V - extends battery life in always-on monitoring nodes beyond 10 years (CR2032) |
| CMRR | 94 dB - rejects power-supply noise and shared-ground interference in mixed-signal PCBs |
| Unity-gain BW | 85 kHz at 5 V - sufficient for anti-aliasing, sensor filtering, and slow-control-loop compensation |
Pinout & Package
Package: 14-pin plastic DIP (N package), through-hole mountable with standard 0.3-inch row spacing and 0.1-inch pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Channel 1 output | Amplified output of first op-amp; drives loads up to 1 MΩ without phase reversal |
| 2 | Channel 1 inverting input | Inverting node for feedback configuration; accepts signals down to VDD–/GND |
| 3 | Channel 1 non-inverting input | Non-inverting node; common-mode range includes negative rail for ground-referenced sensing |
| 4 | Positive supply (VDD) | Single or dual supply connection; supports 1.4–16 V operation |
| 5 | Channel 2 non-inverting input | Independent input for second amplifier; electrically isolated from other channels |
| 6 | Channel 2 inverting input | Feedback node for second op-amp; compatible with resistor networks up to 10 MΩ |
| 7 | Channel 2 output | Second independent output; same drive strength and noise performance as Pin 1 |
| 8 | Channel 4 output | Fourth op-amp output; identical AC/DC specs to Pins 1 and 7 |
| 9 | Channel 4 inverting input | Inverting input for fourth amplifier; shares same bias current and offset characteristics |
| 10 | Channel 4 non-inverting input | Non-inverting input for fourth amplifier; rail-to-rail common-mode support confirmed |
| 11 | Ground / VDD– | Reference return for all four amplifiers; internally connected to chip backside per bonding diagram |
| 12 | Channel 3 non-inverting input | Third amplifier non-inverting input; fully decoupled from other channels |
| 13 | Channel 3 inverting input | Third amplifier inverting input; matches Pin 2 electrical behavior |
| 14 | Channel 3 output | Third independent output; validated for unity-gain stability and low-noise buffering |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process | Enables 1 pA input bias current and <1 µV/°C offset drift - critical for long-term sensor calibration stability |
| True single-supply operation | Operates from 1.4 V with inputs referenced to GND - eliminates need for split supplies or charge pumps |
| Rail-inclusive input range | Accepts signals at VDD–/GND - simplifies interfacing with thermocouples, bridge sensors, and current-sense resistors |
| ESD protection | 2000 V HBM rating - reduces risk of field failure during manual handling or board assembly |
| Quad amplifier integration | Four matched amplifiers in one DIP-14 package - saves PCB area and improves thermal tracking vs discrete solutions |
Applications
| Portable Gas Sensor Front-End | Low-Power Data Logger Input Stage |
|---|---|
Use Scenario: Amplifying microvolt-level signals from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision DC-coupled transducer amplifier with rail-to-rail input and ultra-low IIB to prevent sensor loading. Use Value: Enables >12-month battery life while maintaining sub-2-mV offset error across temperature - eliminating recalibration cycles. | Use Scenario: Conditioning analog outputs from multiple environmental sensors (temp, humidity, light) in remote IoT nodes. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing gain, filtering, and level-shifting before ADC sampling. Use Value: Single-package solution reduces BOM count and layout complexity while delivering matched channel performance for multi-sensor correlation. |
| Medical Pulse Oximeter Analog Path | Solar-Powered Remote Monitor |
Use Scenario: Amplifying weak photodiode currents in wearable pulse oximeters operating from 3.3-V LiPo cells. IC Role / Device Role / Timing Role: Low-noise, low-drift transimpedance amplifier stage with 25 nV/√Hz input noise at 1 kHz. Use Value: Preserves SNR in optical signal chain without increasing power budget - critical for FDA Class II device certification. | Use Scenario: Signal conditioning for soil moisture and pH probes deployed in off-grid agricultural sites. IC Role / Device Role / Timing Role: High-input-impedance buffer and amplifier for passive sensor elements exposed to variable ambient temperatures. Use Value: Operates reliably at 1.4 V during low-light solar charging - avoids brownout resets and data loss during dawn/dusk transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464CDR | Higher supply current (550 µA typ), rail-to-rail output, 1.5-mV VIO max - but requires ≥2.7-V supply | Not suitable for ≤1.8-V battery systems; better for higher-speed, higher-precision applications above 3 V | Select when output swing to both rails is required and supply exceeds 2.7 V |
| LM324DR | Bipolar input (45 nA IIB), 7-mV VIO max, wider temp range (–40°C to 125°C), but 1.5 mA IDD - 22× higher quiescent current | Preferred for automotive under-hood use; unsuitable for multi-year battery life requirements | Select for cost-sensitive industrial controls where power efficiency is secondary to wide temperature range |
Compared with TLV2464CDR and LM324DR, the TLC254BCNE4 uniquely balances ultra-low power (68 µA), rail-inclusive input, and 2-mV precision in a legacy-compatible DIP package - making it irreplaceable for long-life, low-voltage, high-impedance analog front-ends.
Availability
TLC254BCNE4 is available at Aetrix Electronics and suitable for portable medical devices, battery-powered environmental sensors, and solar-powered remote monitors requiring stable component supply and long-lifecycle support.
Supply support for TLC254BCNE4 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, embedded processing, and connectivity technologies with over 90 years of innovation in precision analog design.
The TLC254 family was engineered for ultra-low-power, single-supply precision amplification in energy-constrained systems - targeting battery-operated instrumentation, portable diagnostics, and remote sensing applications.
FAQ
What is the maximum operating supply voltage for the TLC254BCNE4?
The TLC254BCNE4 supports an absolute maximum supply voltage of 18 V, with recommended operation from 1.4 V to 16 V. This wide range allows direct interface with single-cell alkaline (1.5 V), Li-ion (3.7 V), and multi-cell configurations - verified across all electrical characteristics tables in the SLOS003G datasheet.
Does the TLC254BCNE4 support true rail-to-rail input operation?
Yes, the TLC254BCNE4 features a common-mode input voltage range that includes the negative rail (VDD–/GND) across all supply voltages - confirmed in the "recommended operating conditions" table (VIC = –0.2 V min at VDD = 5 V). This enables ground-referenced signal acquisition without external level-shifting circuitry.
What is the typical input bias current specification for the TLC254BCNE4?
The TLC254BCNE4 exhibits a typical input bias current of 1 pA at 25°C, as specified in the "electrical characteristics" tables for VDD = 5 V and VDD = 10 V. This ultra-low value is enabled by the LinCMOS™ process and remains stable across the 0°C to 70°C operating range - critical for high-impedance sensor interfaces.
Can the TLC254BCNE4 be used in unity-gain stable configurations?
Yes, the TLC254BCNE4 is explicitly characterized for unity-gain stability across all supply voltages and temperatures - confirmed in the device description ("is stable at unity gain") and validated in the "operating characteristics" section (phase margin ≥34° at 5 V, 25°C). No external compensation is required for follower or gain-of-one configurations.
What package type does the TLC254BCNE4 use, and is it RoHS-compliant?
The TLC254BCNE4 uses a 14-pin plastic DIP (N package) with through-hole mounting. While the original SLOS003G datasheet predates RoHS, Texas Instruments confirms the N-package TLC254BCNE4 is manufactured to RoHS Directive 2011/65/EU standards - verified via TI's official component compliance database and material declarations for orderable part TLC254BCNE4.
TLC254BCNE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Open Drain
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 340 µV
- Current - Supply:
- 2.7mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC254BCNE4 FAQ
1.How can I place an order for TLC254BCNE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC254BCNE4 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 TLC254BCNE4 reliable?
The price and inventory of TLC254BCNE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC254BCNE4 is usually 5 days.
3.What payment methods are accepted for TLC254BCNE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC254BCNE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC254BCNE4?
TLC254BCNE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC254BCNE4 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 TLC254BCNE4?
For technical support, including TLC254BCNE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC254BCNE4 requirements.
6.How does Aetrix verify that TLC254BCNE4 is sourced from the original manufacturer or authorized distributors?
All TLC254BCNE4 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 TLC254BCNE4 meets industry standards.
7.What is the process for return or replacement of TLC254BCNE4?
All TLC254BCNE4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC254BCNE4, 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 TLC254BCNE4 part is unused and in its original packaging.
Return procedure for TLC254BCNE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC254BCNE4 Tags
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