My Inquiry
My Account
Texas Instruments TLC27L4AIDG4
- Part No.:
- TLC27L4AIDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4AIDG4.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,553
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC27L4AIDG4 from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 5 mV max input offset voltage at 25°C, ultra-low 195 µW quiescent power at 5 V, and rail-to-rail output swing down to the negative rail - enabling direct interfacing with transmitters in battery-powered field instrumentation.
For engineers reviewing the TLC27L4AIDG4 datasheet, TLC27L4AIDG4 pinout, TLC27L4AIDG4 application, or TLC27L4AIDG4 equivalent, this page provides verified specifications, SOIC-14 package details, real-world use cases in industrial sensing, and validated alternative options for design continuity.
Technical Context
The TLC27L4AIDG4 implements a silicon-gate LinCMOS™ input stage delivering 10¹² Ω input impedance and sub-picoampere bias currents (0.6 pA typ at 25°C), enabling high-impedance sensor interfacing without loading. Its common-mode input range extends 0.2 V below GND, supporting true single-supply operation from 4 V to 16 V across –40°C to +85°C.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2) and latch-up immunity. Gain-bandwidth product is 85 kHz (typ, VDD = 5 V), with 34° phase margin ensuring stable unity-gain operation into capacitive loads up to 20 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 5 mV at 25°C - enables accurate DC-coupled amplification of low-level sensor outputs without nulling circuitry |
| Supply Current (four amps) | 68 µA max at 25°C - supports multi-year battery life in remote 4–20 mA loop-powered transmitters |
| Input Bias Current (typ) | 0.6 pA at 25°C - preserves signal integrity when buffering high-impedance pH, thermocouple, or piezoelectric sensors |
| Common-Mode Input Range | –0.2 V to 3.5 V (VDD = 5 V) - allows direct connection to ground-referenced sensors in single-supply systems |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD (VDD = 5 V) - delivers full dynamic range to ADCs or downstream comparators |
| Unity-Gain Bandwidth | 85 kHz (typ, VDD = 5 V) - sufficient for anti-aliasing and filtering in <10 kHz industrial sensor bandwidths |
| ESD Protection | 2000 V HBM - meets IEC 61000-4-2 Level 2 requirements for field-deployed equipment |
Pinout & Package
Package: SOIC-14 (D suffix), 8.65 mm × 3.91 mm body, 1.27 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (ch. 1–4) | High-impedance node accepting sensor signals; accepts voltages down to –0.2 V relative to GND |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (ch. 1–4) | Configurable for closed-loop gain or differential sensing; matched with noninverting inputs for CMRR > 65 dB |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (ch. 1–4) | Rail-to-rail capable; drives 1 MΩ loads with <50 mV headroom to GND and <0.9 V to VDD |
| VDD | Positive supply | Accepts 4 V to 16 V; powers all four amplifiers; decoupling required within 10 mm of pin 4 |
| GND | Ground reference | Low-impedance return path for all channels; must be connected to system ground plane with minimal trace inductance |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | 10¹² Ω input impedance and 0.6 pA bias current enable direct connection to high-Z sensors without signal degradation |
| Single-supply optimized architecture | Common-mode input range extending 0.2 V below GND and rail-to-rail output allow full-swing operation from 4 V to 16 V |
| Ultra-low power consumption | 68 µA total supply current (four amps) supports energy-constrained applications like wireless sensor nodes and portable diagnostics |
| Stable over temperature | Input offset drift ≤ 0.1 µV/month and tempco ≤ 1.1 µV/°C ensure long-term calibration stability in unattended field deployments |
| Integrated ESD protection | 2000 V HBM rating eliminates need for external TVS diodes in industrial I/O modules exposed to handling or field surges |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in residential/commercial fire alarm panels. IC Role / Device Role / Timing Role: Quad op amp configured as transducer buffer, differential amplifier, comparator reference generator, and filter stage. Use Value: Rail-to-rail output swing and sub-pA bias current preserve weak sensor signals; 5 mV VIO ensures reliable threshold detection without trimming. | Use Scenario: Signal conditioning for piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end (two amps), excitation buffer, and output driver for 4–20 mA loop. Use Value: 10¹² Ω input impedance prevents loading of high-output-impedance bridge sensors; 4 V min supply supports wide-input-range loop-powered designs. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermocouple outputs in industrial temperature monitoring units. IC Role / Device Role / Timing Role: Cold-junction compensation amplifier, ratiometric reference buffer, analog output stage, and filter. Use Value: 0.1 µV/month VIO drift maintains calibration accuracy over years; single-supply operation simplifies isolated 24 V loop design. | Use Scenario: Signal amplification and window-comparison of PIR sensor outputs in security lighting or occupancy controls. IC Role / Device Role / Timing Role: AC-coupled preamp, active bandpass filter, peak detector, and dual-threshold comparator. Use Value: Ultra-low 195 µW power enables battery-only operation for >5 years; rail-to-rail output drives logic-level inputs directly. |
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 |
|---|---|---|---|
| TLC27L4CDR | Same LinCMOS™ architecture, 10 mV VIO (vs 5 mV), SOIC-14, C-temp (0°C to 70°C) | Lower precision grade; suitable where cost sensitivity outweighs offset-critical performance | Select when VIO ≤ 5 mV is not required and operating temperature stays within 0°C–70°C |
| TLC27L4AIPW | Same 5 mV VIO spec, TSSOP-14 package (4.4 mm × 5 mm), identical I-temp rating (–40°C to +85°C) | Smaller footprint and thinner profile; requires rework for PCB layout but offers same electrical behavior | Choose for space-constrained designs where SOIC-14 height or board area is limiting |
Compared with TLC27L4CDR, the TLC27L4AIDG4 provides tighter offset and extended temperature range; compared with TLC27L4AIPW, it offers identical performance in a more robust, widely supported SOIC package - making TLC27L4AIDG4 optimal for industrial field instruments requiring long-term reliability and serviceability.
Availability
TLC27L4AIDG4 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 production lifecycles.
Supply support for TLC27L4AIDG4 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-impedance sensor interface applications in industrial automation, environmental monitoring, and battery-operated instrumentation - prioritizing offset stability, ESD robustness, and single-supply usability.
FAQ
What is the maximum operating temperature range for the TLC27L4AIDG4?
The TLC27L4AIDG4 is characterized for operation from –40°C to +85°C (I-suffix grade). This extended industrial temperature range ensures reliable performance in outdoor field transmitters, HVAC systems, and factory-floor instrumentation where ambient conditions vary widely. The device maintains specified input offset voltage, bias current, and gain accuracy across this full range per Section 5.8–5.11 of the datasheet.
Does the TLC27L4AIDG4 support true single-supply operation?
Yes, the TLC27L4AIDG4 supports true single-supply operation with a common-mode input voltage range extending to –0.2 V below GND and rail-to-rail output swing down to within 50 mV of GND. This allows direct interfacing with ground-referenced sensors and driving ADCs or logic without level-shifting circuitry - confirmed in Sections 5.3 and 5.4 of the TLC27L4AIDG4 datasheet.
What is the typical input bias current of the TLC27L4AIDG4 at room temperature?
The typical input bias current of the TLC27L4AIDG4 is 0.6 pA at 25°C, as specified in Section 5.4 (Electrical Characteristics, VDD = 5 V, I Suffix). This ultra-low value results from its LinCMOS™ input stage and enables accurate amplification of signals from high-impedance sources such as pH electrodes, photodiodes, and piezoelectric sensors without significant error.
Can the TLC27L4AIDG4 drive capacitive loads?
The TLC27L4AIDG4 is stable with capacitive loads up to 20 pF, as validated by 34° phase margin at unity gain (Section 5.5). For larger loads, external isolation resistance (e.g., 100 Ω in series with the output) is recommended to maintain stability. This capability supports direct connection to ADC input capacitors and long PCB traces in distributed sensor systems.
Is the TLC27L4AIDG4 pin-compatible with other TLC27Lx variants?
Yes, the TLC27L4AIDG4 is pin-compatible with all TLC27Lx quad op amps in SOIC-14 (D) package, including TLC27L4CDR, TLC27L4BIDR, and TLC27L9IDR. Pin functions, supply connections, and channel assignments match exactly per Figure 4-1 and Table 4-1 - enabling drop-in replacement for offset grade upgrades or qualification reuse without PCB changes.
TLC27L4AIDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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-SOIC
TLC27L4AIDG4 FAQ
1.How can I place an order for TLC27L4AIDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4AIDG4 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 TLC27L4AIDG4 reliable?
The price and inventory of TLC27L4AIDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4AIDG4 is usually 5 days.
3.What payment methods are accepted for TLC27L4AIDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4AIDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4AIDG4?
TLC27L4AIDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4AIDG4 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 TLC27L4AIDG4?
For technical support, including TLC27L4AIDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4AIDG4 requirements.
6.How does Aetrix verify that TLC27L4AIDG4 is sourced from the original manufacturer or authorized distributors?
All TLC27L4AIDG4 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 TLC27L4AIDG4 meets industry standards.
7.What is the process for return or replacement of TLC27L4AIDG4?
All TLC27L4AIDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4AIDG4, 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 TLC27L4AIDG4 part is unused and in its original packaging.
Return procedure for TLC27L4AIDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4AIDG4 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…
