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Texas Instruments TLC27L2AID
- Part No.:
- TLC27L2AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L2AID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:928
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Product details
Overview
TLC27L2AID 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 TLC27L2AID datasheet, TLC27L2AID pinout, TLC27L2AID application, or TLC27L2AID equivalent, key selection criteria include its 5 mV precision grade, −0.2 V to 3.5 V common-mode input range at 5 V supply, 85 kHz unity-gain bandwidth, LinCMOS™ input impedance >10¹² Ω, and SOIC-8 packaging for space-constrained industrial sensing nodes.
Technical Context
The TLC27L2AID uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input offset voltage (5 mV max, 1.1 µV/°C drift) and femtoamp-level input bias currents (0.6 pA typ), eliminating thermal drift errors in high-impedance sensor interfaces. Its dual-channel architecture supports independent signal paths for differential or multi-sensor configurations without crosstalk.
Designed for single-supply operation from 3 V to 16 V, the device features a common-mode input range extending 0.2 V below GND and rail-to-rail output swing - enabling direct interfacing with 0–5 V ADCs and microcontrollers in remote monitoring systems without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max at 25°C - ensures ≤0.1% gain error in 5 V full-scale sensor amplification |
| Supply Current (2 ch) | 34 µA typical at VDD = 5 V - enables >10-year battery life in low-duty-cycle IoT sensors |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - accepts signals below ground for thermocouple or bridge-based transducers |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for <10 kHz analog sensor signals (e.g., pressure, temperature, flow) |
| Input Impedance | >10¹² Ω - prevents loading of high-Z sources like piezoelectric or pH electrodes |
| Output Swing | Rail-to-rail low-side (1 mV above GND) - maximizes dynamic range into 0–5 V ADCs |
| ESD Rating | 2000 V HBM - withstands handling in uncontrolled assembly environments |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm body, 1.27 mm pitch, gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, channel 1 | High-impedance node for sensor signal reference or positive leg of differential pair |
| 1IN− | Inverting input, channel 1 | Feedback path connection point; sets closed-loop gain with external resistors |
| 1OUT | Output, channel 1 | Drives next stage (ADC buffer, filter, or comparator) with rail-to-rail swing |
| GND | Ground / negative supply | Reference for both inputs and outputs; must be low-impedance return path |
| 2IN+ | Noninverting input, channel 2 | Independent signal path for second sensor or diagnostic channel |
| 2IN− | Inverting input, channel 2 | Configurable for instrumentation, difference, or active filtering topologies |
| VDD | Positive supply | Accepts 3–16 V; powers both amplifiers and enables single-supply system simplification |
| NC | No connect | Pin 8 is unused; must remain unconnected per TI specification |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | Enables 0.6 pA typical input bias current - critical for high-resistance sensor interfaces (e.g., gas sensors, pH probes) |
| Single-supply operation | Eliminates need for split supplies in portable or distributed field devices - reduces BOM cost and PCB area |
| Input offset voltage drift | 0.1 µV/month stability - ensures long-term calibration integrity in unattended monitoring equipment |
| Latch-up immunity | Prevents destructive failure during power sequencing or transient overvoltage events in industrial control cabinets |
| ESD protection | 2000 V HBM rating - allows safe manual handling and board-level assembly without special ESD controls |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifies low-level ionization chamber or thermistor signals in residential/commercial fire alarm panels. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner for analog smoke/temperature sensing front-end. Use Value: 5 mV offset and rail-to-rail output ensure full utilization of 8–12-bit ADC range, improving detection sensitivity by ≥15% vs. standard op amps. | Use Scenario: Conditions millivolt-level bridge outputs from MEMS or strain-gauge pressure sensors in HVAC or process control. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core (with external resistors) for ratiometric bridge excitation and differential gain. Use Value: 10¹² Ω input impedance prevents bridge imbalance errors; 34 µA supply current extends battery life in wireless pressure nodes. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Interfaces Pt100/RTD or thermocouple signals in 4–20 mA loop-powered field instruments. IC Role / Device Role / Timing Role: Cold-junction compensation amplifier and linearization stage in analog temperature transmitter signal chain. Use Value: −0.2 V common-mode range allows direct connection to thermocouple negative leg; low drift maintains ±0.1°C accuracy over 5-year field deployment. | Use Scenario: Amplifies weak pyroelectric (PIR) sensor outputs in security lighting or occupancy sensors. IC Role / Device Role / Timing Role: Low-noise, low-power preamplifier with adjustable gain and AC coupling for motion-triggered event detection. Use Value: 68 nV/√Hz input noise and 85 kHz bandwidth enable reliable detection of sub-millivolt PIR pulses while consuming <10 µW in sleep mode. |
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 |
|---|---|---|---|
| TLV2462IDR | Higher 250 µA supply current, 2.5 mV offset, rail-to-rail I/O, 6.4 MHz GBW | Better for higher-speed active filters or fast-settling data acquisition; unsuitable for multi-year battery use | Select when bandwidth >100 kHz or rail-to-rail input is required; avoid for ultra-low-power sensor nodes |
| OPA2333AIDR | Zero-drift architecture, 12 µV offset, 17 µA supply current, 350 kHz GBW | Superior DC accuracy for precision weigh scales or medical diagnostics; higher cost and complexity | Select when sub-20 µV offset and near-zero drift are mandatory; over-spec for general industrial transmitters |
Compared with TLV2462IDR and OPA2333AIDR, the TLC27L2AID provides optimal balance of 5 mV precision, 34 µA quiescent current, and −0.2 V input range for cost-sensitive, battery-operated field transmitters where moderate bandwidth suffices.
Availability
TLC27L2AID is available at Aetrix Electronics and suitable for smoke detector design, pressure transmitter production, and temperature sensor module development requiring stable component supply across extended product lifecycles.
Supply support for TLC27L2AID 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 consumer markets.
The TLC27Lx family was designed specifically for precision, low-power analog signal conditioning in battery-operated and harsh-environment industrial sensors - emphasizing offset stability, input impedance, and single-supply usability.
FAQ
What is the maximum operating temperature range for the TLC27L2AID?
The TLC27L2AID is characterized for operation from −40°C to +85°C (I-suffix grade). Its electrical specifications - including 5 mV input offset voltage and 34 µA supply current - are guaranteed across this full industrial temperature range, making it suitable for outdoor or factory-floor deployments without derating.
Does the TLC27L2AID support true rail-to-rail input?
No, the TLC27L2AID does not support rail-to-rail input. Its common-mode input voltage range extends to −0.2 V (below GND) and up to 3.5 V at VDD = 5 V, but it cannot accept signals at the positive rail. However, its rail-to-rail output swing (down to 1 mV above GND) is fully supported, which is critical for maximizing ADC dynamic range in single-supply systems.
Can the TLC27L2AID drive capacitive loads directly?
The TLC27L2AID exhibits stable phase margin (≥34°) with 20 pF capacitive load at unity gain, per datasheet Figure 5-29. For loads >50 pF, external isolation resistance (e.g., 100 Ω in series with output) is recommended to prevent peaking or oscillation - especially in PCB traces longer than 2 cm or when driving ADC input capacitance.
How does the input offset voltage drift affect long-term calibration in field instruments?
The TLC27L2AID's specified input offset voltage drift is 0.1 µV/month, including the first 30 days. Over 5 years, this accumulates to <6 µV - well within its 5 mV initial spec. This stability eliminates need for periodic recalibration in sealed field transmitters, reducing maintenance cost and downtime for industrial customers deploying the TLC27L2AID.
Is the TLC27L2AID pin-compatible with other TLC27Lx variants?
Yes, the TLC27L2AID shares identical SOIC-8 pinout and footprint with all TLC27Lx dual op amps (e.g., TLC27L2IDR, TLC27L2BIDR, TLC27L7IDR). This allows drop-in replacement for different offset grades without PCB redesign - enabling design flexibility during prototyping or cost optimization in volume production while maintaining identical layout and routing.
TLC27L2AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC27L2AID FAQ
1.How can I place an order for TLC27L2AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2AID 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 TLC27L2AID reliable?
The price and inventory of TLC27L2AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2AID is usually 5 days.
3.What payment methods are accepted for TLC27L2AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2AID?
TLC27L2AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2AID 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 TLC27L2AID?
For technical support, including TLC27L2AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2AID requirements.
6.How does Aetrix verify that TLC27L2AID is sourced from the original manufacturer or authorized distributors?
All TLC27L2AID 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 TLC27L2AID meets industry standards.
7.What is the process for return or replacement of TLC27L2AID?
All TLC27L2AID units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2AID, 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 TLC27L2AID part is unused and in its original packaging.
Return procedure for TLC27L2AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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