My Inquiry
My Account
Texas Instruments TLC27L4ING4
- Part No.:
- TLC27L4ING4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L4ING4.pdf
- Description:
- IC CMOS 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,693
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC27L4ING4 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 195 µW quiescent power at 5 V, and rail-to-rail output swing with common-mode input range extending below ground - enabling direct interfacing with transducers in battery-powered field transmitters.
For engineers reviewing the TLC27L4ING4 datasheet, TLC27L4ING4 pinout, TLC27L4ING4 application, or TLC27L4ING4 equivalent, this device is selected for high-impedance analog front-ends requiring stable DC accuracy, ESD-hardened operation up to 2000 V, and extended temperature support (–40°C to +85°C) in industrial sensing systems.
Technical Context
The TLC27L4ING4 implements four independent precision op-amp channels in a single monolithic LinCMOS™ die, achieving 10¹² Ω typical input impedance and sub-picoampere bias currents. Its architecture supports single-supply operation down to 4 V while maintaining CMRR ≥ 65 dB and PSRR ≥ 70 dB across –40°C to +85°C.
It features internal ESD protection per MIL-STD-883C Method 3015.2, latch-up immunity, and guaranteed operation with input common-mode voltage as low as –0.2 V relative to GND - critical for ground-referenced sensor bridges and current-sense amplifiers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets worst-case DC error in precision gain stages without trimming |
| Supply Current (typ) | 68 µA per amplifier at 5 V - enables multi-channel operation on microamp-level power budgets |
| Input Impedance (typ) | 10¹² Ω - preserves signal integrity from high-Z sources like piezoelectric sensors or pH electrodes |
| Common-Mode Input Range | Extends to –0.2 V below GND - allows direct connection to grounded shunt resistors or thermocouples |
| Output Voltage Swing | Includes negative rail (GND) - supports true single-supply signal buffering without level-shifting circuitry |
| ESD Protection | 2000 V HBM - reduces need for external transient suppression in field-deployed instrumentation |
| Operating Temperature | –40°C to +85°C - qualified for industrial process control and remote environmental monitoring |
Pinout & Package
TLC27L4ING4 is housed in a 14-pin PDIP (N) package with 0.3-inch body width and through-hole mounting compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for differential or single-ended signal injection into first op-amp |
| 1IN– | Inverting input, Channel 1 | Feedback path entry point; accepts resistor networks for gain configuration |
| 1OUT | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; drives loads directly or feeds next stage |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second signal path (e.g., reference buffer) |
| 2IN– | Inverting input, Channel 2 | Supports active filtering or summing configurations without cross-talk |
| 2OUT | Output, Channel 2 | Electrically isolated output channel; usable for dual-sensor conditioning |
| 3IN+ | Noninverting input, Channel 3 | Third dedicated input for auxiliary functions (e.g., temperature compensation) |
| 3IN– | Inverting input, Channel 3 | Enables programmable gain or offset adjustment via external resistors |
| 3OUT | Output, Channel 3 | Provides third analog output; compatible with ADC input ranges |
| 4IN+ | Noninverting input, Channel 4 | Fourth independent input for system diagnostics or redundancy monitoring |
| 4IN– | Inverting input, Channel 4 | Allows implementation of window comparators or fault-detection circuits |
| 4OUT | Output, Channel 4 | Final buffered output; supports driving long traces or multiple downstream loads |
| GND | Ground / Negative supply | Reference node for all inputs/outputs; must be low-impedance for noise rejection |
| VDD | Positive supply | Accepts 4 V to 16 V; powers all four amplifiers simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 195 µW total at 5 V - extends battery life in portable gas detectors and wireless sensor nodes |
| Rail-inclusive input range | Common-mode extends to –0.2 V below GND - eliminates need for negative supply in single-rail systems |
| High DC precision stability | 0.1 µV/month offset drift - ensures long-term calibration retention in unattended field instruments |
| ESD-hardened architecture | 2000 V HBM rating - improves manufacturing yield and field reliability in handling-intensive environments |
| Latch-up immunity | Designed-in robustness against overvoltage transients - prevents catastrophic failure during hot-plug events |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in fire alarm panels. IC Role / Device Role / Timing Role: Quad-channel signal conditioner performing offset correction, gain scaling, and output buffering for analog smoke/heat outputs. Use Value: Single-chip solution replaces discrete op-amp arrays, reducing BOM count and PCB area while maintaining <10 mV DC error over temperature. |
Use Scenario: Conditioning bridge output from MEMS pressure sensors in HVAC and industrial process controllers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched channel pairs for ratiometric excitation and differential readout. Use Value: 10¹² Ω input impedance prevents loading of high-output-impedance bridges; rail-to-rail output interfaces directly with 0–5 V ADC references. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermocouple outputs in 4–20 mA loop-powered transmitters. IC Role / Device Role / Timing Role: Low-power, high-accuracy op-amp array implementing cold-junction compensation, gain setting, and loop-driver interface. Use Value: 4 V minimum supply enables operation from 2-wire loop voltage; ultra-low IDD minimizes self-heating errors in sealed enclosures. |
Use Scenario: Amplifying weak pyroelectric sensor outputs in PIR-based security lighting and occupancy controls. IC Role / Device Role / Timing Role: High-gain, low-noise preamplifier with AC-coupled input and adjustable hysteresis for reliable motion detection. Use Value: Sub-pA bias current prevents signal degradation from high-impedance PIR elements; ESD hardening withstands static discharge in indoor/outdoor installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher VIO (7 mV typ), higher IDD (1.4 mA), no ESD rating specified, wider temp range (0°C to 70°C only for C-suffix) | Suitable for cost-sensitive consumer electronics but lacks rail-inclusive input and ESD hardening for industrial field use | Choose LM324DR only when absolute lowest cost dominates and full –40°C to +85°C operation is not required. |
| TLC27L4CDR | Same electrical specs but SOIC-14 package (D), rated for 0°C to 70°C only, no I-suffix qualification | Applicable in commercial-grade embedded systems where extended temperature is unnecessary | Select TLC27L4CDR for space-constrained PCBs needing surface-mount assembly and standard commercial temp range. |
Compared with LM324DR and TLC27L4CDR, TLC27L4ING4 provides verified industrial temperature support, guaranteed ESD protection, and lower power - making it the preferred choice for battery-operated or harsh-environment sensor nodes where long-term parametric stability matters.
Availability
TLC27L4ING4 is available at Aetrix Electronics and suitable for pressure transmitter design, temperature transmitter calibration, and smoke detector signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC27L4ING4 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 specifically for low-power, high-impedance industrial sensor interfaces - emphasizing DC accuracy, single-supply usability, and robustness in field-deployed instrumentation.
FAQ
What is the maximum supply voltage for TLC27L4ING4?
The absolute maximum supply voltage for TLC27L4ING4 is 18 V, but the recommended operating range is 4 V to 16 V over –40°C to +85°C. Operation above 16 V risks exceeding dissipation limits and degrading long-term reliability. The TLC27L4ING4 datasheet specifies 16 V as the upper limit for continuous safe operation under all temperature conditions.
Does TLC27L4ING4 support rail-to-rail input?
TLC27L4ING4 does not support full rail-to-rail input - its common-mode input voltage range extends to –0.2 V below GND and up to VDD – 1.5 V (e.g., 3.5 V at 5 V supply). However, the "rail-inclusive" input capability below ground enables direct interfacing with grounded sensors, distinguishing it from standard op-amps that require input biasing.
What is the input bias current specification for TLC27L4ING4?
The TLC27L4ING4 exhibits an input bias current of 0.6 pA typical at 25°C (–40°C to +85°C range: ≤ 200 pA). This ultra-low value results from LinCMOS™ gate oxide technology and is critical for preserving signal fidelity from high-impedance sources such as pH probes or photodiode transimpedance stages.
Can TLC27L4ING4 drive capacitive loads directly?
TLC27L4ING4 is not unity-gain stable with heavy capacitive loads; phase margin drops to 34° at 25°C with 20 pF load. For loads > 100 pF, external isolation resistance (e.g., 100 Ω in series with output) or closed-loop compensation is required. The TLC27L4ING4 datasheet recommends verifying stability using Figure 5-29 (Phase Margin vs Capacitive Load).
Is TLC27L4ING4 pin-compatible with other TLC27Lx variants?
Yes - TLC27L4ING4 shares identical pinout and footprint with all TLC27Lx quad op-amps in PDIP-14 (N) packaging, including TLC27L4AING4, TLC27L4BING4, and TLC27L9ING4. Only the input offset voltage grade differs; no PCB redesign is needed when upgrading precision within the same package variant.
TLC27L4ING4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC27L4ING4 FAQ
1.How can I place an order for TLC27L4ING4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4ING4 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 TLC27L4ING4 reliable?
The price and inventory of TLC27L4ING4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4ING4 is usually 5 days.
3.What payment methods are accepted for TLC27L4ING4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4ING4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4ING4?
TLC27L4ING4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4ING4 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 TLC27L4ING4?
For technical support, including TLC27L4ING4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4ING4 requirements.
6.How does Aetrix verify that TLC27L4ING4 is sourced from the original manufacturer or authorized distributors?
All TLC27L4ING4 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 TLC27L4ING4 meets industry standards.
7.What is the process for return or replacement of TLC27L4ING4?
All TLC27L4ING4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4ING4, 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 TLC27L4ING4 part is unused and in its original packaging.
Return procedure for TLC27L4ING4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4ING4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
