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Texas Instruments TLC27L4IPW
- Part No.:
- TLC27L4IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC27L4IPW.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,831
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Product details
Overview
TLC27L4IPW from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 10 mV max input offset voltage (25°C), ultra-low 68 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling use in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L4IPW datasheet, TLC27L4IPW pinout, TLC27L4IPW application, or TLC27L4IPW equivalent, key selection criteria include input offset stability over temperature, sub-1 pA input bias current, common-mode input range extending below ground, and TSSOP-14 packaging for space-constrained industrial sensing nodes.
Technical Context
The TLC27L4IPW implements a silicon-gate LinCMOS™ input stage delivering high input impedance (10¹² Ω) and extremely low input bias current (0.6 pA typ at 25°C), eliminating loading errors in high-impedance sensor interfaces. Its architecture supports single-supply operation from 4 V to 16 V across –40°C to +85°C, with common-mode input voltage range extending 0.2 V below GND.
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 device avoids bipolar power penalties while retaining precision DC performance - including 87 dB CMRR and 97 dB supply-voltage rejection ratio - making it suitable for analog front-ends in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max at 25°C - sets baseline DC error in precision gain stages and sensor bridges |
| Supply Current (4 amps) | 68 µA typical at 5 V - enables multi-year battery life in remote transmitters |
| Input Bias Current | 0.6 pA typical at 25°C - prevents signal degradation in pH, thermocouple, or piezoelectric sensor interfaces |
| Common-Mode Input Range | –0.2 V to 3.5 V at 5 V supply - allows direct interfacing to grounded sensors without level-shifting |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - supports full dynamic range utilization in 3.3 V/5 V systems |
| Unity-Gain Bandwidth | 85 kHz at 25°C - sufficient for slow-varying process signals (e.g., pressure, temperature, flow) |
| CMRR / PSRR | 87 dB / 97 dB - rejects noise from shared power rails and common-mode interference in industrial wiring |
Pinout & Package
TLC27L4IPW is housed in a 14-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, optimized for automated assembly and thermal performance in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (ch. 1–4) | High-impedance node for reference or sensor signal routing; accepts voltages down to –0.2 V |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (ch. 1–4) | Feedback or differential input node; matched with noninverting inputs for precision amplification |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (ch. 1–4) | Rail-to-rail capable output driving loads ≥1 MΩ; low-level swing to GND enables single-supply signal chain design |
| VDD | Positive power supply | Accepts 4 V to 16 V; powers all four op-amps simultaneously with minimal quiescent draw |
| GND | Ground / negative supply | Reference for all inputs and outputs; common return path for sensor and load circuits |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | Delivers 10¹² Ω input impedance and sub-picoamp bias current - critical for high-Z sensor buffering without drift |
| Single-supply operation | Operates from 4 V to 16 V with inputs extending below GND and outputs swinging to GND - eliminates dual-rail complexity |
| Input offset drift | 0.1 µV/month (including first 30 days) - ensures long-term calibration stability in unattended field instruments |
| ESD protection | 2000 V HBM rating per MIL-STD-883C - improves robustness during handling and in electrically noisy industrial environments |
| Latch-up immunity | Designed-in immunity prevents catastrophic failure during overvoltage or ESD events - enhances system reliability |
Applications
| Pressure Transmitter | Smoke Detector |
|---|---|
Use Scenario: Amplifies low-level mV output from silicon piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with rail-to-rail output driving ADC input. Use Value: Sub-pA input bias prevents sensor bridge imbalance; 10 mV VIO enables <0.1% FS error without trimming. | Use Scenario: Conditions ionization chamber current in residential and commercial smoke alarms. IC Role / Device Role / Timing Role: Ultra-low-current transimpedance amplifier converting pA-level chamber current to measurable voltage. Use Value: 0.6 pA typical IIB minimizes dark-current error; 68 µA total supply current extends 10-year battery life. |
| Temperature Transmitter | Flow Transmitter |
Use Scenario: Interfaces Pt100 RTD or thermistor in 2-/3-/4-wire configurations for industrial temperature monitoring. IC Role / Device Role / Timing Role: Constant-current source driver and buffer for ratiometric measurement circuits. Use Value: Common-mode range extending below GND enables 3-wire RTD Kelvin sensing without level shifters. | Use Scenario: Amplifies millivolt output from electromagnetic flow meters in water/wastewater treatment plants. IC Role / Device Role / Timing Role: Low-drift, low-noise signal conditioner preceding sigma-delta ADC. Use Value: 70 nV/√Hz input noise and 87 dB CMRR suppress 50/60 Hz pickup from nearby motors and pumps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2474IDR | Lower VIO (1.6 mV max), higher supply current (600 µA), rail-to-rail I/O, wider temp range (–40°C to 125°C) | Better DC accuracy but 9× higher power - unsuitable for battery operation; preferred for high-temp industrial controllers | Select TLV2474IDR when VIO < 2 mV and extended temperature are required, and power budget allows >500 µA |
| LM324DR | Higher VIO (7 mV typ), higher IIB (45 nA), no below-rail input, lower cost, wider availability | Acceptable for non-critical industrial analog blocks where 10 mV offset and 50 nA bias are tolerable | Select LM324DR only for cost-sensitive, non-battery, non-high-Z applications where precision is secondary |
Compared with TLV2474IDR and LM324DR, the TLC27L4IPW uniquely balances ultra-low power (68 µA), sub-pA bias current, and below-rail input capability - making it irreplaceable in long-life, high-impedance, single-supply sensor nodes where both accuracy and energy efficiency are mandatory.
Availability
TLC27L4IPW is available at Aetrix Electronics and suitable for pressure transmitter design, smoke detector certification, and temperature transmitter production requiring stable component supply and long-term lifecycle support.
Supply support for TLC27L4IPW 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 for ultra-low-power, high-input-impedance industrial sensing - targeting field transmitters, battery-operated safety devices, and upgrade paths for legacy bipolar op-amp designs.
FAQ
What is the maximum operating temperature range for the TLC27L4IPW?
The TLC27L4IPW is characterized for operation from –40°C to +85°C, matching the I-suffix grade specification. This extended temperature range enables reliable deployment in outdoor industrial enclosures, automotive under-hood sensor modules, and building automation systems exposed to wide ambient swings - unlike the C-suffix variant limited to 0°C–70°C.
Does the TLC27L4IPW support true rail-to-rail input operation?
The TLC27L4IPW supports common-mode input voltage down to –0.2 V (below GND) but does not extend fully to VDD. Its input range is –0.2 V to 3.5 V at 5 V supply and –0.2 V to 8.5 V at 10 V supply. Therefore, TLC27L4IPW provides below-rail input capability - essential for grounded-sensor interfaces - but not full rail-to-rail input swing.
Can the TLC27L4IPW drive capacitive loads directly?
The TLC27L4IPW exhibits stable unity-gain performance with up to 20 pF capacitive load (34° phase margin at 25°C), but larger loads induce peaking or oscillation. For loads >20 pF - such as ADC input capacitance or long PCB traces - a series isolation resistor (e.g., 100 Ω) must be added between TLC27L4IPW output and the load to maintain stability.
What is the typical input offset voltage drift over time for the TLC27L4IPW?
The TLC27L4IPW specifies input offset voltage drift of typically 0.1 µV/month, including the first 30 days. This exceptional long-term stability - enabled by TI's LinCMOS™ process - ensures minimal calibration drift in field-deployed equipment, reducing maintenance cycles and improving measurement confidence over multi-year deployments.
Is the TLC27L4IPW pin-compatible with other TSSOP-14 quad op-amps?
The TLC27L4IPW uses standard TSSOP-14 pinout per Figure 4-1 in its datasheet, matching industry-standard quad op-amp layout (e.g., channels 1–4 arranged sequentially, VDD on pin 4, GND on pin 11). However, electrical differences - especially input stage architecture and supply current - mean functional substitution requires validation; TLC27L4IPW is not a drop-in replacement for bipolar or CMOS op-amps with different biasing or drive requirements.
TLC27L4IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-TSSOP
TLC27L4IPW FAQ
1.How can I place an order for TLC27L4IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4IPW 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 TLC27L4IPW reliable?
The price and inventory of TLC27L4IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4IPW is usually 5 days.
3.What payment methods are accepted for TLC27L4IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4IPW?
TLC27L4IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4IPW 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 TLC27L4IPW?
For technical support, including TLC27L4IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4IPW requirements.
6.How does Aetrix verify that TLC27L4IPW is sourced from the original manufacturer or authorized distributors?
All TLC27L4IPW 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 TLC27L4IPW meets industry standards.
7.What is the process for return or replacement of TLC27L4IPW?
All TLC27L4IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4IPW, 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 TLC27L4IPW part is unused and in its original packaging.
Return procedure for TLC27L4IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4IPW Tags
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