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Texas Instruments TLC27L4AIDR
- Part No.:
- TLC27L4AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4AIDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,750
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Product details
Overview
TLC27L4AIDR from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 5 mV max input offset voltage (25°C), ultra-low 195 µW quiescent power at 5 V, and rail-to-rail output swing with common-mode input extending below ground. It is widely deployed in battery-powered field transmitters including pressure, temperature, and flow sensors.
For engineers reviewing the TLC27L4AIDR datasheet, TLC27L4AIDR pinout, TLC27L4AIDR application, or TLC27L4AIDR equivalent, this page provides verified specifications, validated pin functions, confirmed operating conditions across –40°C to +85°C, and two rigorously cross-referenced alternative parts for precision analog front-end design.
Technical Context
The TLC27L4AIDR implements a silicon-gate LinCMOS™ input stage enabling 10¹² Ω typical input impedance and sub-picoampere bias currents (0.6 pA typ at 25°C). Its architecture supports true single-supply operation with common-mode input range extending 0.2 V below GND and output swing to within 50 mV of GND at 5 V supply.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2) and exhibits stable offset drift of 0.1 µV/month, including first 30 days. The device is characterized over –40°C to +85°C (I-suffix), with supply voltage range 4 V to 16 V in that grade.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 5 mV at 25°C - enables high-accuracy DC-coupled amplification without trimming in low-gain sensor interfaces |
| Supply Current (typ) | 68 µA at 25°C - supports multi-year operation on coin-cell or primary batteries in remote sensing nodes |
| Input Impedance (typ) | 10¹² Ω - minimizes loading error on high-impedance sources like piezoresistive bridges and pH electrodes |
| Common-Mode Input Range | –0.2 V to 3.5 V at 5 V supply - allows direct interfacing to grounded or negative-referenced transducers |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD at 5 V - preserves dynamic range in single-supply systems with limited headroom |
| Unity-Gain Bandwidth (typ) | 85 kHz at 5 V, 25°C - sufficient for anti-aliasing, filtering, and buffering of slow-varying industrial sensor outputs |
| ESD Protection | 2000 V HBM - reduces risk of field failure during handling and PCB assembly in unshielded environments |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 3.91 mm body, 1.27 mm pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal routing; accepts voltages down to –0.2 V |
| 1IN– | Inverting input, Channel 1 | Feedback or differential input node; matched to 1IN+ for common-mode rejection |
| 1OUT | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; swings to within 50 mV of GND under load |
| 2IN+, 2IN–, 2OUT | Inputs/Output, Channel 2 | Electrically identical to Channel 1; independent operation supports dual-sensor or gain-stage cascading |
| 3IN+, 3IN–, 3OUT | Inputs/Output, Channel 3 | Same performance as Channels 1–2; enables three-channel signal conditioning without external multiplexing |
| 4IN+, 4IN–, 4OUT | Inputs/Output, Channel 4 | Full quad functionality; all channels share same VDD and GND, with no crosstalk degradation per spec |
| GND | Ground / Negative Supply | Reference for all inputs and outputs; common return path for all four amplifiers |
| VDD | Positive Power Supply | Single supply rail (4–16 V); powers all four op-amps; decoupling required within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 195 µW at 5 V - extends battery life in portable instrumentation and wireless sensor nodes |
| Rail-to-rail output capability | Swings to within 50 mV of GND and 0.9 V of VDD - maximizes usable signal range in 3.3 V or 5 V systems |
| Input common-mode range below GND | Extends to –0.2 V - enables direct connection to grounded thermocouples or bridge transducers without level-shifting |
| Stable offset voltage drift | 0.1 µV/month (including first 30 days) - ensures long-term calibration stability in field-deployed equipment |
| Integrated ESD protection | 2000 V HBM - eliminates need for external TVS diodes in cost-sensitive industrial control modules |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifies mV-level output from piezoresistive pressure sensors in HVAC and process control systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with gain-setting and offset compensation. Use Value: 5 mV max VIO and 0.1 µV/month drift maintain accuracy over 10+ years of unattended operation. |
Use Scenario: Conditions signals from RTDs and thermistors in industrial temperature monitoring nodes. IC Role / Device Role / Timing Role: Low-power, single-supply signal buffer and filter driver for ADC input stages. Use Value: 10¹² Ω input impedance prevents loading errors on high-resistance thermal sensors. |
| Flow Transmitter | Smoke Detector Analog Front-End |
Use Scenario: Processes differential voltage from magnetic flow meter coils in water/wastewater treatment plants. IC Role / Device Role / Timing Role: Low-noise, low-drift preamplifier with common-mode rejection for noisy plant-floor environments. Use Value: 87 dB CMRR and 97 dB kSVR suppress interference from variable-frequency drives and AC mains coupling. |
Use Scenario: Amplifies weak ionization current from smoke chamber in battery-powered residential detectors. IC Role / Device Role / Timing Role: Ultra-low-current transimpedance amplifier with rail-to-rail output for microcontroller ADC interface. Use Value: 0.6 pA typical IIB enables accurate measurement of sub-picoampere smoke currents without guard traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464AIDR | Lower VIO (1.6 mV max), higher supply current (520 µA typ), rail-to-rail I/O, 1.5 MHz GBW | Better DC accuracy but 8× higher power; suited for higher-speed, AC-coupled sensor paths | Select when bandwidth >100 kHz and VIO <2 mV are mandatory; avoid in battery-constrained designs |
| LM324DR | Higher VIO (7 mV max), bipolar input (65 nA IIB), no ESD rating, wider temp range (–40°C to 125°C) | Lower cost, higher power tolerance, but lacks LinCMOS low-IIB and ESD robustness | Select for non-critical, line-powered applications where cost dominates and sensor impedance <100 kΩ |
Compared with TLV2464AIDR and LM324DR, the TLC27L4AIDR uniquely balances ultra-low power (68 µA), sub-pA bias current, and 2000 V ESD protection-making it optimal for long-life, high-impedance, field-deployed analog front-ends where reliability and battery longevity are critical.
Availability
TLC27L4AIDR is available at Aetrix Electronics and suitable for pressure transmitter design, temperature sensor signal conditioning, and smoke detector analog front-ends requiring stable component supply across extended product lifecycles.
Supply support for TLC27L4AIDR 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 innovation.
The TLC27Lx family was engineered specifically for low-power, high-impedance sensor interfacing in industrial field instruments-prioritizing long-term offset stability, single-supply usability, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27L4AIDR?
The TLC27L4AIDR is an I-suffix device characterized for continuous operation from –40°C to +85°C. This rating is confirmed in Section 5.3 (Recommended Operating Conditions) and Table 5-8 through 5-11 of the official TI datasheet SLOS053E. All electrical specifications-including input offset voltage, supply current, and common-mode range-are guaranteed across this full industrial temperature span.
Does the TLC27L4AIDR support true single-supply operation with input signals below ground?
Yes. The TLC27L4AIDR's common-mode input voltage range extends to –0.2 V (relative to GND) at 5 V supply, as specified in Sections 5.3 and 5.4. This allows direct connection to grounded transducers such as thermocouples or bridge sensors without external level-shifting circuitry-enabling simplified, low-component-count front-end designs.
What is the typical input bias current of the TLC27L4AIDR, and why does it matter?
The TLC27L4AIDR has a typical input bias current of 0.6 pA at 25°C (Section 5.4). This ultra-low value-enabled by LinCMOS™ technology-is critical when interfacing with high-impedance sensors (e.g., pH electrodes, piezoelectric elements, or RTDs above 10 kΩ), where even nanoampere-level leakage would introduce significant offset and gain errors.
Can the TLC27L4AIDR drive capacitive loads, and what is its phase margin?
At unity gain with 20 pF load, the TLC27L4AIDR exhibits a typical phase margin of 34° at 25°C (Section 5.5). While stable under light capacitive loads, driving >100 pF directly may require isolation resistance or gain adjustment. TI recommends verifying stability in final layout using Figure 5-29 (Phase Margin vs Capacitive Load) from the datasheet.
Is the TLC27L4AIDR pin-compatible with other devices in the TLC27Lx family?
Yes. The TLC27L4AIDR shares identical SOIC-14 (D) pinout and footprint with TLC27L4IDR, TLC27L4BIDR, and TLC27L9IDR-as confirmed in Figure 4-1 and Table 4-1 of SLOS053E. This allows drop-in substitution within the same package grade for different offset voltage grades, provided system-level VIO and drift requirements are met.
TLC27L4AIDR 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:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.05V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 57µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27L4AIDR FAQ
1.How can I place an order for TLC27L4AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4AIDR 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 TLC27L4AIDR reliable?
The price and inventory of TLC27L4AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4AIDR is usually 5 days.
3.What payment methods are accepted for TLC27L4AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4AIDR?
TLC27L4AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4AIDR 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 TLC27L4AIDR?
For technical support, including TLC27L4AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4AIDR requirements.
6.How does Aetrix verify that TLC27L4AIDR is sourced from the original manufacturer or authorized distributors?
All TLC27L4AIDR 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 TLC27L4AIDR meets industry standards.
7.What is the process for return or replacement of TLC27L4AIDR?
All TLC27L4AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4AIDR, 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 TLC27L4AIDR part is unused and in its original packaging.
Return procedure for TLC27L4AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4AIDR Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
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LM2904DGKR
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LM324PWR
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LM2902DR
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LM358P
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