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Texas Instruments TLC2254CDR
- Part No.:
- TLC2254CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2254CDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,315
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Product details
Overview
TLC2254CDR from Texas Instruments is a quad rail-to-rail output operational amplifier in an 8-pin SOIC (D) package, delivering 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and 1500 µV max input offset voltage at 25°C. It operates from ±2.2 V to ±8 V supplies and supports single- or split-supply configurations for precision signal conditioning in battery-powered sensor interfaces.
For engineers reviewing the TLC2254CDR datasheet, TLC2254CDR pinout, TLC2254CDR application, or TLC2254CDR equivalent, key selection criteria include micropower operation (≤250 µA total), rail-to-rail output swing, low input bias current (1 pA typ), and compatibility with high-impedance sources such as piezoelectric transducers and remote-sensing front ends.
Technical Context
The TLC2254CDR uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low power consumption. Its input stage includes high-impedance CMOS inputs with common-mode range extending to the negative rail, enabling direct interfacing with ground-referenced sensors.
It features fully specified performance across 0°C to 70°C ambient temperature, with guaranteed parameters including large-signal voltage gain (≥100 V/mV), CMRR (≥70 dB), and phase margin (63°), ensuring stable unity-gain operation into capacitive loads up to 100 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 140–250 µA total (four channels), enabling multi-amplifier designs in energy-constrained systems |
| Input Offset Voltage | 200–1500 µV max at 25°C, suitable for DC-coupled amplification where offset error must stay below 1.5 mV |
| Input Bias Current | 1 pA typical, preserving signal integrity in >1 GΩ source impedance applications like pH electrodes |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz, supporting low-noise amplification of microvolt-level transducer outputs |
| Output Swing | Rail-to-rail (within 100 mV of rails at 500 µA load), maximizing dynamic range when driving ADCs with 0–5 V input ranges |
| Common-Mode Range | Extends to VDD– (negative rail), allowing direct connection to single-supply grounded sensors |
| Gain-Bandwidth Product | 0.2 MHz, sufficient for anti-aliasing filters and low-frequency instrumentation (<100 kHz) |
Pinout & Package
Package: SOIC-14 (D package, 14-pin narrow-body). Tape-and-reel delivery confirmed by R suffix per TI documentation.
| 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 for amplifier A; high-impedance CMOS node (10¹² Ω) |
| 3 | IN+ A | Non-inverting input for amplifier 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 for amplifier B; electrically isolated from other inputs |
| 6 | IN− B | Inverting input for amplifier B; matched bias current with pin 2 |
| 7 | OUT B | Amplifier B output; identical specs to pin 1 |
| 8 | OUT C | Amplifier C output; independent channel with same rail-to-rail capability |
| 9 | IN− C | Inverting input for amplifier C; low input offset drift (0.5 µV/°C) |
| 10 | IN+ C | Non-inverting input for amplifier C; supports common-mode voltages to VDD− |
| 11 | VDD+ | Positive supply rail; accepts ±2.2 V to ±8 V or single 4.4–16 V |
| 12 | IN+ D | Non-inverting input for amplifier D; decoupled layout recommended |
| 13 | IN− D | Inverting input for amplifier D; matched with pins 2, 6, and 9 |
| 14 | OUT D | Amplifier D output; full 4-channel functionality in one SOIC-14 package |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full supply-voltage dynamic range-critical for maximizing SNR when driving 12-bit+ ADCs |
| Ultra-low input bias current | 1 pA typical enables accurate amplification of signals from high-Z sources (e.g., photodiodes, piezo elements) |
| Low-noise architecture | 19 nV/√Hz at 1 kHz reduces integrated noise in bandwidth-limited sensor front ends |
| Single- and split-supply support | Operates from 4.4 V to 16 V single supply or ±2.2 V to ±8 V dual supply-simplifies system power design |
| Specified over commercial temp range | Guaranteed performance from 0°C to 70°C meets industrial control and consumer electronics requirements |
Applications
| Medical Sensor Signal Conditioning | Portable Gas Detector Front End |
|---|---|
Use Scenario: Amplifying low-level analog output from electrochemical gas sensors in handheld analyzers. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous signal conditioning for multiple sensor channels with matched gain and offset. Use Value: Micropower operation extends battery life beyond 12 months; rail-to-rail output ensures full utilization of 10-bit ADC input range. | Use Scenario: Buffering and filtering thermistor and NDIR detector outputs in battery-operated air quality monitors. IC Role / Device Role / Timing Role: Configured as unity-gain buffer and active low-pass filter to reject EMI and preserve signal fidelity. Use Value: 1 pA input bias prevents loading of high-resistance thermistor networks; low noise avoids masking ppm-level gas concentration changes. |
| Industrial Process Controller I/O Module | Smart Home Environmental Hub |
Use Scenario: Isolating and scaling 4–20 mA loop signals in PLC analog input cards. IC Role / Device Role / Timing Role: Used in precision current-to-voltage conversion and level-shifting stages before ADC sampling. Use Value: Input offset voltage ≤1500 µV limits measurement error to <0.015% of full scale; wide supply range accommodates 24 V loop power. | Use Scenario: Signal conditioning for humidity, temperature, and VOC sensors in Wi-Fi–enabled home hubs. IC Role / Device Role / Timing Role: Provides gain, filtering, and drive capability for mixed-signal SoC ADC inputs. Use Value: 35 µA/channel supply current allows continuous monitoring without compromising wireless transmission duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2444IDR | Higher supply current (125 µA/channel), lower input offset (1500 µV max), wider GBW (1.8 MHz) | Better for higher-speed filtering but consumes >3× more power | Select when bandwidth >100 kHz is required and power budget permits |
| LMV324IDR | Rail-to-rail input/output, 130 µA/channel, higher input bias (10 nA), no guaranteed 0°C–70°C spec | Suitable for cost-sensitive consumer apps but lacks low-bias advantage | Choose for non-critical, high-volume applications where 1 pA bias is not needed |
Compared with TLV2444IDR and LMV324IDR, the TLC2254CDR delivers the lowest input bias current and best noise performance in its power class, making it uniquely suited for high-impedance, low-level analog sensing where signal integrity is paramount.
Availability
TLC2254CDR is available at Aetrix Electronics and suitable for medical sensor interfaces, portable environmental monitors, industrial I/O modules, and smart home hubs requiring stable component supply and long-term production continuity.
Supply support for TLC2254CDR 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 TLC225x family was designed specifically for micropower, rail-to-rail output applications in battery-operated and high-impedance sensor systems-emphasizing low noise, low bias, and robust AC performance at sub-250 µA total supply current.
FAQ
What is the maximum operating supply voltage for the TLC2254CDR?
The TLC2254CDR supports a maximum supply voltage of ±8 V in split-supply mode or 16 V in single-supply mode. Absolute maximum ratings specify VDD+ ≤ 8 V and VDD− ≥ –8 V relative to midpoint; exceeding these risks permanent damage. Recommended operation stays within ±2.2 V to ±8 V for reliable performance across the 0°C to 70°C temperature range.
Does the TLC2254CDR support true rail-to-rail input?
No, the TLC2254CDR provides rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD−). The positive end is limited to VDD+ – 1.5 V under recommended conditions. This allows ground-referenced sensor interfacing but requires level-shifting for signals near VDD+.
Can the TLC2254CDR drive capacitive loads without oscillation?
Yes-the TLC2254CDR maintains 63° phase margin at unity gain with a 100 pF capacitive load and 50 kΩ series resistance, as verified in the datasheet's operating characteristics. For heavier loads (>100 pF), adding a small isolation resistor (10–100 Ω) between output and capacitance restores stability without degrading DC accuracy.
How does the input offset voltage of the TLC2254CDR compare to the TLC2254ACDR variant?
The TLC2254CDR has a maximum input offset voltage of 1500 µV at 25°C, while the TLC2254ACDR (A-grade) is tighter at 850 µV max. Both share identical pinout, package, and electrical architecture-the A-grade version undergoes additional trimming for improved DC precision in applications demanding sub-millivolt accuracy.
Is the TLC2254CDR RoHS compliant and lead-free?
Yes, the TLC2254CDR is RoHS compliant and lead-free per Texas Instruments' standard packaging. The SOIC-14 (D) package uses matte tin lead finish, and TI's official product folder confirms compliance with EU Directive 2011/65/EU and JEDEC J-STD-609 Category 1 marking.
TLC2254CDR 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2254CDR FAQ
1.How can I place an order for TLC2254CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2254CDR 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 TLC2254CDR reliable?
The price and inventory of TLC2254CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2254CDR is usually 5 days.
3.What payment methods are accepted for TLC2254CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2254CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2254CDR?
TLC2254CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2254CDR 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 TLC2254CDR?
For technical support, including TLC2254CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2254CDR requirements.
6.How does Aetrix verify that TLC2254CDR is sourced from the original manufacturer or authorized distributors?
All TLC2254CDR 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 TLC2254CDR meets industry standards.
7.What is the process for return or replacement of TLC2254CDR?
All TLC2254CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2254CDR, 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 TLC2254CDR part is unused and in its original packaging.
Return procedure for TLC2254CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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