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Texas Instruments TLC27L2IPW
- Part No.:
- TLC27L2IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC27L2IPW.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,846
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Product details
Overview
TLC27L2IPW 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 10 mV max input offset voltage (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 of weak transducer signals in battery-powered field transmitters.
For engineers reviewing the TLC27L2IPW datasheet, TLC27L2IPW pinout, TLC27L2IPW application, or TLC27L2IPW equivalent, this device is selected for its LinCMOS™ process stability, −0.2 V to 3.5 V common-mode input range at 5 V supply, and guaranteed operation from −40°C to +85°C - critical for flow, pressure, temperature, and level transmitter designs requiring long-term offset drift < 0.1 µV/month.
Technical Context
The TLC27L2IPW uses Texas Instruments' silicon-gate LinCMOS™ technology to achieve high input impedance (10¹² Ω typical) and low input bias current (0.6 pA typical at 25°C), enabling direct interfacing with high-impedance sensors without signal degradation. Its architecture supports single-supply operation with common-mode input extending below ground and output swing including the negative rail.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and stable unity-gain performance (85 kHz bandwidth, 34° phase margin at 25°C). The I-suffix grade ensures full specification across −40°C to +85°C, with supply voltage range of 4 V to 16 V under those conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets baseline DC error in precision gain stages; impacts zero-point accuracy in transmitter front-ends |
| Supply Current (typ) | 34 µA at VDD = 5 V - enables multi-year battery life in wireless sensor nodes and portable instrumentation |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct sensing of signals referenced below ground (e.g., thermocouples, bridge outputs) |
| Output Voltage Swing | Includes negative rail (VOL ≤ 50 mV at IOL = 0 mA) - preserves dynamic range in single-supply systems with grounded references |
| Unity-Gain Bandwidth | 85 kHz at 25°C - sufficient for DC–10 kHz sensor signal conditioning (e.g., pressure/temperature transducers) |
| Input Bias Current (typ) | 0.6 pA at 25°C - minimizes voltage drop across high-Z source impedances (>100 MΩ), critical for piezoresistive and capacitive sensors |
| ESD Protection | 2000 V HBM - reduces risk of field failure during handling and PCB assembly in industrial environments |
Pinout & Package
Packaged in an 8-pin TSSOP (PW), the TLC27L2IPW provides compact surface-mount integration with thermal and space efficiency for dense industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for differential or single-ended signal routing; accepts voltages down to −0.2 V |
| 1IN− | Inverting input, Channel 1 | Feedback path connection point; matched to 1IN+ for common-mode rejection |
| 1OUT | Output, Channel 1 | Rail-to-rail capable output driving loads ≥ 1 MΩ; VOL ≤ 50 mV ensures compatibility with ADC reference thresholds |
| GND | Ground / Negative supply | Reference return for both channels and power supply; must be low-impedance to minimize noise coupling |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second sensor channel or signal processing stage |
| 2IN− | Inverting input, Channel 2 | Enables dual-channel instrumentation amplifier configurations or independent gain blocks |
| VDD | Positive supply | Accepts 4 V to 16 V; powers both op-amps; decoupling capacitor required near pin for stability |
| NC | No connect | Pin 7 is unconnected - no internal bond wire; must remain floating per TI design |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ process technology | Delivers 10¹² Ω input impedance and sub-pA bias current - eliminates loading errors on high-Z sensors like pH electrodes and strain gauges |
| Ultra-low power consumption | 34 µA supply current enables >10-year operation on a single CR2032 coin cell in intermittent-sampling sensor nodes |
| Single-supply rail-to-rail output | Output swings to within 50 mV of GND and 1.1 V below VDD - maximizes usable dynamic range in 3.3 V or 5 V systems |
| Extended temperature grade (I-suffix) | Guaranteed performance from −40°C to +85°C - suitable for outdoor industrial enclosures and automotive under-hood monitoring |
| Latch-up immunity & ESD protection | Withstands 2000 V HBM ESD and resists parasitic SCR triggering - improves reliability in noisy factory-floor environments |
Applications
| Flow Transmitter | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level mV output from differential pressure sensors in HVAC or process control loops. IC Role / Device Role / Timing Role: Precision dual op-amp configured as instrumentation amplifier front-end and output buffer. Use Value: 10 mV max VIO and 0.1 µV/month drift ensure long-term calibration stability; rail-to-rail output drives 4–20 mA loop drivers directly. |
Use Scenario: Conditioning Wheatstone bridge signals from MEMS or piezoresistive pressure sensors. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one amp for bridge excitation regulation, one for differential gain. Use Value: 0.6 pA input bias avoids bridge imbalance errors; −0.2 V to 3.5 V VICR accommodates bridge mid-point offsets. |
| Temperature Transmitter | Level Transmitter |
Use Scenario: Linearizing and amplifying RTD or thermistor voltage outputs in industrial temperature monitoring. IC Role / Device Role / Timing Role: Constant-current source driver and precision gain stage for analog temperature scaling. Use Value: Ultra-low IDD extends battery life in wireless temperature nodes; CMOS input prevents self-heating errors in high-resistance thermistors. |
Use Scenario: Signal conditioning for ultrasonic or capacitance-based liquid level sensors in tanks or silos. IC Role / Device Role / Timing Role: Low-noise preamplifier and active filter for weak echo or capacitance-change signals. Use Value: 68 nV/√Hz input noise preserves SNR in microvolt-level echo detection; dual channels support transmit/receive separation. |
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 | Lower VIO (1.6 mV max), higher supply current (550 µA), rail-to-rail I/O, 6.4 MHz GBW | Better DC precision but 16× higher power - unsuitable for battery operation; preferred for AC-coupled, wideband sensor interfaces | Select TLV2462IDR only when bandwidth >100 kHz and VIO < 2 mV are mandatory; avoid in energy-constrained designs. |
| LMV358IDGKR | Higher VIO (7 mV max), higher IDD (150 µA), rail-to-rail output only, 1 MHz GBW, wider temp range (−40°C to +125°C) | Lower cost and higher speed, but less stable over time - acceptable for non-critical consumer-grade level sensing | Choose LMV358IDGKR for cost-sensitive, non-battery applications where 0.1 µV/month drift is not required. |
Compared with TLV2462IDR and LMV358IDGKR, the TLC27L2IPW uniquely balances ultra-low power (34 µA), proven long-term offset stability (<0.1 µV/month), and −40°C to +85°C operation - making it irreplaceable in field-deployed, maintenance-free industrial transmitters.
Availability
TLC27L2IPW is available at Aetrix Electronics and suitable for flow transmitter, pressure transmitter, temperature transmitter, and level transmitter designs requiring stable component supply across extended temperature ranges and multi-year field deployment.
Supply support for TLC27L2IPW 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 over 90 years of innovation in precision analog ICs.
The TLC27Lx family was designed specifically for low-power, high-stability sensor signal conditioning in industrial field instruments - emphasizing long-term offset drift performance, single-supply operation, and robustness in harsh environments.
FAQ
What is the maximum input offset voltage specification for TLC27L2IPW at 25°C?
The TLC27L2IPW has a maximum input offset voltage of 10 mV at 25°C, as specified in the Electrical Characteristics table for the I-suffix grade. This value applies across the full operating temperature range (−40°C to +85°C), with a worst-case of 13 mV. The parameter is measured under standard test conditions (VO = 1.4 V, RS = 50 Ω, VIC = 0 V, RL = 1 MΩ) and defines the inherent DC error introduced by the amplifier in precision gain stages.
Does TLC27L2IPW support true single-supply operation with inputs extending below ground?
Yes, the TLC27L2IPW supports true single-supply operation with a common-mode input voltage range that extends to −0.2 V at VDD = 5 V (and −0.2 V at VDD = 10 V). This allows direct interfacing with transducer outputs referenced below the negative rail - such as grounded thermocouples or bridge circuits with negative common-mode offsets - without requiring level-shifting circuitry.
What is the typical supply current for TLC27L2IPW at 5 V and 25°C?
The typical supply current for TLC27L2IPW is 34 µA at VDD = 5 V and TA = 25°C, with a maximum of 42 µA over the full −40°C to +85°C range. This ultra-low quiescent current enables multi-year battery life in wireless sensor transmitters and portable instrumentation, distinguishing it from higher-power alternatives like the TLV2462 or LMV358.
Is pin 7 of the TLC27L2IPW package connected internally?
No, pin 7 of the TLC27L2IPW (8-pin TSSOP) is a no-connect (NC) terminal with no internal bond wire or circuit connection. Texas Instruments explicitly states this in the Pin Configuration and Functions section of the datasheet. It must remain unconnected on the PCB - neither tied to GND nor left floating via pull-up/down - to ensure proper device operation and reliability.
How does the LinCMOS™ process benefit TLC27L2IPW in sensor applications?
The LinCMOS™ process used in TLC27L2IPW delivers 10¹² Ω typical input impedance and sub-picoampere input bias current (0.6 pA typ), minimizing loading errors on high-impedance sensors such as RTDs, thermistors, and piezoelectric elements. This ensures signal integrity without external guarding or active compensation, directly improving measurement accuracy and long-term stability in field transmitter designs.
TLC27L2IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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:
- 1.1 mV
- 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-TSSOP
TLC27L2IPW FAQ
1.How can I place an order for TLC27L2IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2IPW 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 TLC27L2IPW reliable?
The price and inventory of TLC27L2IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2IPW is usually 5 days.
3.What payment methods are accepted for TLC27L2IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2IPW?
TLC27L2IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2IPW 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 TLC27L2IPW?
For technical support, including TLC27L2IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2IPW requirements.
6.How does Aetrix verify that TLC27L2IPW is sourced from the original manufacturer or authorized distributors?
All TLC27L2IPW 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 TLC27L2IPW meets industry standards.
7.What is the process for return or replacement of TLC27L2IPW?
All TLC27L2IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2IPW, 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 TLC27L2IPW part is unused and in its original packaging.
Return procedure for TLC27L2IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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