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Texas Instruments TLC27L2AIP
- Part No.:
- TLC27L2AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L2AIP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,939
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Product details
Overview
TLC27L2AIP from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 5 mV max input offset voltage at 25°C, ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling accurate amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L2AIP datasheet, TLC27L2AIP pinout, TLC27L2AIP application, or TLC27L2AIP equivalent, key selection factors include its LinCMOS™ input stage (10¹² Ω impedance, <60 pA bias current), −0.2 V to 3.5 V common-mode input range at 5 V supply, and guaranteed operation from 0°C to 70°C in PDIP-8 packaging.
Technical Context
The TLC27L2AIP uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input offset voltage (drift ≤ 0.1 µV/month) and latch-up immunity without bipolar power penalties. Its dual-channel architecture supports independent signal paths with matched gain and phase characteristics across temperature.
It operates from 3 V to 16 V supply in commercial temperature range (0°C to 70°C), supports single-supply configurations with inputs extending below ground, and features internal ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max at 25°C - enables high-accuracy DC-coupled amplification of low-level sensor outputs without frequent nulling. |
| Supply Current (dual) | 34 µA typical at VDD = 5 V - supports >10-year battery life in remote, low-duty-cycle monitoring nodes. |
| Input Impedance | 10¹² Ω typical - minimizes loading on high-impedance sources like piezoelectric sensors and pH electrodes. |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct interfacing to ground-referenced transducers without level-shifting circuitry. |
| Output Voltage Swing | Within 50 mV of negative rail and 0.9 V of positive rail - maximizes dynamic range in single-supply systems. |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for DC–10 kHz analog signal conditioning in industrial transmitters. |
| Input Bias Current | 60 pA max at 70°C - ensures negligible offset error from source resistance up to 10 MΩ. |
Pinout & Package
Package: PDIP-8 (Plastic Dual In-line Package, 0.300-inch width).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting input, Channel 1 | High-impedance node accepting reference or sensor signal; accepts voltages down to −0.2 V with 5 V supply. |
| 2 (IN−) | Inverting input, Channel 1 | Feedback or gain-setting node; matched to IN+ for precision differential operation. |
| 3 (OUT) | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; swings within 50 mV of GND and 0.9 V of VDD. |
| 4 (GND) | Ground / Negative supply | Reference for both input common-mode range and output swing; serves as return path for all currents. |
| 5 (IN+) | Noninverting input, Channel 2 | Independent second channel input; identical electrical specs to Pin 1. |
| 6 (IN−) | Inverting input, Channel 2 | Independent second channel input; electrically isolated from Channel 1 except via shared supply rails. |
| 7 (OUT) | Output, Channel 2 | Second fully functional op-amp output; no crosstalk specified beyond PSRR/CMRR limits. |
| 8 (VDD) | Positive supply | Accepts 3–16 V; supplies both amplifiers; decoupling capacitor required near pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | Delivers 10¹² Ω input impedance and sub-60 pA bias current - critical for high-Z sensor interfaces without external guarding. |
| Input offset drift | ≤0.1 µV/month including first 30 days - eliminates need for periodic recalibration in field-deployed instrumentation. |
| Rail-to-rail output | Swings to within 50 mV of GND and 0.9 V of VDD - preserves full signal headroom in 5 V single-supply systems. |
| ESD protection | 2000 V HBM rating per MIL-STD-883C - reduces handling sensitivity and improves manufacturing yield in automated assembly. |
| Latch-up immunity | Designed-in immunity per JEDEC JESD78 - prevents destructive failure during overvoltage or supply sequencing events. |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying microamp-level ionization chamber current or thermopile voltage in residential fire alarms. IC Role / Device Role / Timing Role: Precision DC-coupled transimpedance and buffer amplifier for analog front-end conditioning. Use Value: Ultra-low input bias current (<60 pA) prevents signal loss across high-value feedback resistors; 5 mV VIO ensures <0.1% full-scale error in 5 V output span. | Use Scenario: Signal conditioning of millivolt-level bridge outputs in industrial pressure sensors. IC Role / Device Role / Timing Role: Instrumentation-grade dual amplifier for bridge excitation buffering and differential gain staging. Use Value: Matched dual channels enable ratiometric measurement; −0.2 V to 3.5 V common-mode range accommodates bridge mid-point offsets without level shifters. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and scaling RTD or thermistor voltage in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Low-power, precision op-amp for analog computation (e.g., polynomial correction) and current-loop drive interface. Use Value: 34 µA supply current enables full functionality within 3.5 mA loop budget; 85 kHz bandwidth supports fast thermal response without instability. | Use Scenario: Amplifying weak pyroelectric sensor signals in PIR-based occupancy sensors. IC Role / Device Role / Timing Role: High-input-impedance AC-coupled preamplifier with adjustable gain and filtering. Use Value: 10¹² Ω input impedance prevents signal attenuation from sensor capacitance; rail-to-rail output drives comparator inputs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2CP | 10 mV max VIO (vs. 5 mV), same package and temperature grade - lower precision, lower cost. | Suitable where 0.2% system accuracy suffices; not recommended for <0.1% error budgets. | Select when cost sensitivity outweighs offset-critical performance; verify VIO drift impact on long-term calibration stability. |
| TLV2462IP | Rail-to-rail I/O, 600 µA supply current, 6.4 MHz GBW - higher speed and power, different process (BiCMOS). | Better for AC-coupled or wideband applications; unsuitable for multi-year battery operation. | Choose only if bandwidth >100 kHz or rail-to-rail input is required; avoid where ultra-low IDD is mandatory. |
Compared with TLC27L2CP and TLV2462IP, the TLC27L2AIP uniquely balances sub-5 mV offset, 34 µA supply current, and −0.2 V input capability - making it optimal for precision, low-power, single-supply sensor interfaces where long-term drift and battery life are primary constraints.
Availability
TLC27L2AIP is available at Aetrix Electronics and suitable for smoke detector design, pressure transmitter production, and temperature transmitter development requiring stable component supply across extended product lifecycles.
Supply support for TLC27L2AIP 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The TLC27Lx family was designed specifically for precision, ultra-low-power analog signal conditioning in battery-operated and remote sensing applications - emphasizing offset stability, input impedance, and single-supply operability.
FAQ
What is the maximum operating supply voltage for the TLC27L2AIP?
The TLC27L2AIP supports a maximum supply voltage of 16 V across its rated temperature range (0°C to 70°C). Absolute maximum rating is 18 V, but continuous operation above 16 V is not recommended due to increased power dissipation and potential reliability degradation. Always observe derating curves in Section 5.2 for sustained thermal performance.
Does the TLC27L2AIP support true single-supply operation with inputs below ground?
Yes, the TLC27L2AIP supports true single-supply operation with its common-mode input voltage range extending to −0.2 V (at VDD = 5 V, 25°C). This allows direct connection of ground-referenced sensors without level-shifting circuitry. The specification holds across the full 0°C to 70°C range, though the lower limit degrades slightly at temperature extremes.
What is the typical input bias current of the TLC27L2AIP at 70°C?
The typical input bias current of the TLC27L2AIP at 70°C is 50 pA, with a maximum specified value of 600 pA. This low bias current is enabled by the LinCMOS™ process and ensures minimal voltage error across high-impedance sensor sources - critical for applications like pH electrodes or photodiode transimpedance amplifiers.
Can the TLC27L2AIP drive capacitive loads without oscillation?
The TLC27L2AIP is unity-gain stable but exhibits reduced phase margin under capacitive loading. At 25°C with VDD = 5 V, phase margin drops to 34° with 20 pF load (Figure 5-29). For loads >100 pF, external isolation resistance (e.g., 100 Ω in series with output) is recommended to maintain stability. Always verify loop response in final PCB layout using actual parasitic capacitance.
Is the TLC27L2AIP pin-compatible with other devices in the TLC27Lx family?
Yes, the TLC27L2AIP is pin-compatible with all PDIP-8 variants in the TLC27Lx family, including TLC27L2CP, TLC27L2BP, and TLC27L7IP. All share identical pinout (SOIC-8, PDIP-8, SOP-8, TSSOP-8), allowing drop-in replacement for offset grade upgrades or downgrades without PCB modification - provided supply and temperature requirements remain within spec.
TLC27L2AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 20µA (x2 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC27L2AIP FAQ
1.How can I place an order for TLC27L2AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2AIP 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 TLC27L2AIP reliable?
The price and inventory of TLC27L2AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2AIP is usually 5 days.
3.What payment methods are accepted for TLC27L2AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2AIP?
TLC27L2AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2AIP 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 TLC27L2AIP?
For technical support, including TLC27L2AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2AIP requirements.
6.How does Aetrix verify that TLC27L2AIP is sourced from the original manufacturer or authorized distributors?
All TLC27L2AIP 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 TLC27L2AIP meets industry standards.
7.What is the process for return or replacement of TLC27L2AIP?
All TLC27L2AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2AIP, 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 TLC27L2AIP part is unused and in its original packaging.
Return procedure for TLC27L2AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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