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Texas Instruments TLC27L2ACDG4
- Part No.:
- TLC27L2ACDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L2ACDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,646
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Product details
Overview
TLC27L2ACDG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning in industrial and remote applications. 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 with common-mode input extending below ground - enabling direct interfacing with transducer outputs down to 0 V.
For engineers reviewing the TLC27L2ACDG4 datasheet, TLC27L2ACDG4 pinout, TLC27L2ACDG4 application, or TLC27L2ACDG4 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 analog front-ends.
Technical Context
The TLC27L2ACDG4 uses Texas Instruments' silicon-gate LinCMOS™ process, delivering superior offset voltage stability (<0.1 μV/month drift) and latch-up immunity versus metal-gate alternatives. Its dual-channel architecture supports independent signal paths with matched gain and phase characteristics across temperature.
It operates from 3 V to 16 V over 0°C to 70°C (C-suffix), supports single-supply operation with inputs extending 0.2 V below GND, and features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2).
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 cost-sensitive transducer interfaces |
| Supply Current (typ) | 34 µA at VDD = 5 V - supports multi-year battery life in wireless field transmitters and portable instrumentation |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct connection to 0–5 V sensors and ground-referenced bridges |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for low-frequency sensor signals (e.g., pressure, temperature, flow) with stable closed-loop response |
| Input Impedance | 10¹² Ω typical - minimizes loading error on high-impedance sources like piezoresistive elements and pH electrodes |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - provides maximum dynamic range in single-supply systems |
| ESD Rating | 2000 V HBM - reduces need for external protection in industrial I/O modules handling exposed sensor wiring |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm body, 1.27 mm pitch, surface-mount.
| 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 node for configuring gain, filtering, or comparator hysteresis |
| 1OUT | Output, channel 1 | Drives loads up to ±30 mA; swings within 50 mV of GND and 0.9 V of VDD |
| GND | Ground / negative supply | Reference for both power and signal; common return for dual-channel operation |
| 2IN+ | Noninverting input, channel 2 | Independent second channel input; identical electrical specs to channel 1 |
| 2IN− | Inverting input, channel 2 | Enables dual-path signal processing (e.g., differential pair, dual-sensor conditioning) |
| VDD | Positive supply | Accepts 3–16 V; powers both amplifiers; decoupling required per layout guidelines |
| NC | No connect | Pin 8 is not bonded - no external connection; maintain isolation per TI design guidance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 34 µA supply current enables >10-year battery life in 25 µA average-load IoT sensor nodes |
| Rail-to-rail output capability | Output swings to within 50 mV of GND and 0.9 V of VDD, maximizing ADC utilization in 5 V systems |
| Extended common-mode input range | Inputs operate down to −0.2 V, allowing direct interface with grounded thermocouples and strain gauges |
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-pA bias currents prevent signal loss in high-Z sensor circuits |
| Integrated ESD protection | 2000 V HBM rating eliminates need for discrete TVS diodes in Class B industrial environments |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in battery-powered fire alarm units. IC Role / Device Role / Timing Role: Precision DC amplifier for analog smoke/heat sensing front-end with offset-stable gain. Use Value: 5 mV max VIO and <0.1 μV/month drift ensure long-term calibration stability without periodic recalibration. | Use Scenario: Conditioning bridge output from MEMS or piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core with matched channels for ratiometric bridge excitation and differential readout. Use Value: 10¹² Ω input impedance prevents bridge imbalance errors; rail-to-rail output maximizes 12-bit ADC resolution. |
| Temperature Transmitter | Level Transmitter |
Use Scenario: Linearizing and scaling RTD or thermistor voltage outputs for 4–20 mA loop transmission. IC Role / Device Role / Timing Role: Low-drift, low-power op-amp in analog signal chain preceding DAC and current driver. Use Value: 34 µA supply current enables full analog path operation within 100 µA loop budget; −0.2 V input range accommodates cold-junction compensation. | Use Scenario: Signal conditioning for ultrasonic or capacitive tank level sensors in remote water/wastewater monitoring. IC Role / Device Role / Timing Role: Dual amplifier for echo amplification and threshold detection in low-duty-cycle sensing cycles. Use Value: Dual-channel integration reduces PCB area and component count; SOIC-8 footprint supports compact enclosure designs. |
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 |
|---|---|---|---|
| TLC27L2CDR | Same 5 mV VIO spec, but C-suffix rated for 0°C to 70°C only; identical SOIC-8 package and pinout | Suitable for commercial-grade equipment where extended temperature is not required | Select TLC27L2CDR if ambient operating temperature stays within 0–70°C and tape-and-reel procurement is preferred |
| TLV2462IDR | Higher 100 µA supply current, 2.5 mV VIO, rail-to-rail I/O, wider 2.7–6 V supply range | Better suited for 3.3 V systems and higher-speed applications (650 kHz GBW), but consumes >2× more power | Choose TLV2462IDR when 3.3 V operation or faster settling is needed, accepting higher quiescent current |
Compared with TLC27L2CDR, the TLC27L2ACDG4 offers identical performance and pin compatibility but is supplied in tube packaging (DG4 suffix); compared with TLV2462IDR, it trades bandwidth and rail-to-rail input for 3× lower supply current and proven long-term offset stability in industrial field deployments.
Availability
TLC27L2ACDG4 is available at Aetrix Electronics and suitable for industrial sensor transmitters, battery-powered environmental monitors, and analog front-ends in process automation requiring stable component supply across extended product lifecycles.
Supply support for TLC27L2ACDG4 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 TLC27Lx family was developed to deliver LinCMOS™-based precision op-amps for low-power, high-impedance sensor signal conditioning in harsh industrial and remote environments - prioritizing offset stability, ESD robustness, and single-supply usability.
FAQ
What is the maximum operating temperature range for the TLC27L2ACDG4?
The TLC27L2ACDG4 is a C-suffix device characterized for operation from 0°C to 70°C. It is not rated for extended temperature ranges such as −40°C to +85°C (I-suffix) or −55°C to +125°C (M-suffix). Operation outside 0–70°C may result in parametric degradation or functional failure.
Does the TLC27L2ACDG4 support true rail-to-rail input operation?
No, the TLC27L2ACDG4 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 does not reach VDD. However, it does provide rail-to-rail output swing - within 50 mV of GND and 0.9 V below VDD.
Can the TLC27L2ACDG4 be used in single-supply configurations with grounded sensors?
Yes, the TLC27L2ACDG4 is explicitly designed for single-supply operation. Its input common-mode range includes −0.2 V, allowing direct connection to grounded transducers such as RTDs, thermocouples (with cold-junction compensation), and bridge sensors referenced to system ground - without level-shifting circuitry.
What is the typical supply current draw of the TLC27L2ACDG4 at 5 V?
The TLC27L2ACDG4 draws 34 µA typical supply current (two amplifiers) at VDD = 5 V and TA = 25°C, with a maximum of 42 µA at 0°C and 28 µA at 70°C. This ultra-low quiescent current makes it ideal for battery-powered field instruments with multi-year service intervals.
Is the TLC27L2ACDG4 pin-compatible with other devices in the TLC27Lx family?
Yes, the TLC27L2ACDG4 is pin-compatible with all SOIC-8 variants in the TLC27Lx family (e.g., TLC27L2CDR, TLC27L2IDR, TLC27L2MDR), sharing identical pin functions and layout requirements. Differences are limited to offset voltage grade, temperature rating, and packaging - no PCB redesign is needed when upgrading or substituting within the same D-package variant.
TLC27L2ACDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC27L2ACDG4 FAQ
1.How can I place an order for TLC27L2ACDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2ACDG4 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 TLC27L2ACDG4 reliable?
The price and inventory of TLC27L2ACDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2ACDG4 is usually 5 days.
3.What payment methods are accepted for TLC27L2ACDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2ACDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2ACDG4?
TLC27L2ACDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2ACDG4 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 TLC27L2ACDG4?
For technical support, including TLC27L2ACDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2ACDG4 requirements.
6.How does Aetrix verify that TLC27L2ACDG4 is sourced from the original manufacturer or authorized distributors?
All TLC27L2ACDG4 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 TLC27L2ACDG4 meets industry standards.
7.What is the process for return or replacement of TLC27L2ACDG4?
All TLC27L2ACDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2ACDG4, 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 TLC27L2ACDG4 part is unused and in its original packaging.
Return procedure for TLC27L2ACDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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