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Texas Instruments TLC27L2IDG4
- Part No.:
- TLC27L2IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L2IDG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,442
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Product details
Overview
TLC27L2IDG4 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 at 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 TLC27L2IDG4 datasheet, TLC27L2IDG4 pinout, TLC27L2IDG4 application, or TLC27L2IDG4 equivalent, key selection criteria include its −40°C to +85°C industrial temperature rating, SOIC-8 package compatibility, LinCMOS™ input stage with 10¹² Ω impedance, and verified performance in pressure/temperature transmitter front-ends requiring stable DC gain and low drift.
Technical Context
The TLC27L2IDG4 implements a silicon-gate LinCMOS™ process, delivering bipolar-like precision (low VIO, high CMRR) without bipolar power penalties. Its dual-channel architecture supports independent signal paths with matched characteristics, and the common-mode input range extends 0.2 V below GND - critical for single-supply interfacing with grounded sensors.
It operates from 4 V to 16 V over −40°C to +85°C, with guaranteed specifications including 85 kHz unity-gain bandwidth, 34° phase margin, and 65–87 dB CMRR. Input bias currents remain below 60 pA (25°C), enabling high-impedance source interfacing without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets worst-case DC error floor in precision gain stages |
| Supply Current (typ) | 34 µA at 5 V - enables multi-year operation on coin-cell batteries in wireless sensors |
| Input Impedance | 10¹² Ω - preserves signal integrity when buffering high-Z sources like piezoresistive bridges |
| Common-Mode Range | Extends 0.2 V below GND - allows direct interface with 0–5 V sensor outputs using single 5 V rail |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for <10 kHz analog sensor signals (e.g., RTD, thermocouple) with stability margin |
| CMRR (min) | 60 dB over full temp range - rejects noise from shared power rails in industrial I/O modules |
| ESD Rating | 2000 V HBM - withstands handling in non-EPA environments during board assembly |
Pinout & Package
Package: SOIC-8 (D suffix), 3.9 mm × 4.9 mm, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output | Amplified output of Channel 1; drives loads up to ±30 mA with rail-to-rail swing |
| 2 (IN−1) | Inverting Input | High-impedance node for feedback or differential sensing; accepts signals down to −0.2 V |
| 3 (IN+1) | Noninverting Input | High-impedance node for reference or sensor input; common-mode range includes GND |
| 4 (GND) | Ground | Negative supply reference; serves as return path for both channels and load current |
| 5 (IN+2) | Noninverting Input | Independent input for Channel 2; electrically isolated from Channel 1 per datasheet isolation specs |
| 6 (IN−2) | Inverting Input | Feedback node for Channel 2; supports standard op-amp configurations (inverting, noninverting, diff-amp) |
| 7 (OUT2) | Output | Amplified output of Channel 2; identical AC/DC specs to OUT1 |
| 8 (VDD) | Power | Positive supply rail; supports 4–16 V operation; decoupling required within 1 cm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 34 µA supply current enables >10-year battery life in 24/7 remote monitoring nodes |
| Rail-to-rail output swing | Drives to GND and within 0.9 V of VDD - maximizes dynamic range in 3.3 V or 5 V systems |
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-60 pA bias current prevent loading of high-Z sensor elements |
| Single-supply operation | Operates from 4 V with inputs extending below GND - eliminates need for split supplies in field transmitters |
| Latch-up immunity | Designed-in protection prevents catastrophic failure during overvoltage transients on inputs or supplies |
Applications
| Pressure Transmitter Signal Conditioning | Temperature Transmitter Front-End |
|---|---|
Use Scenario: Amplifying mV-level output from silicon piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core - one channel for sensor excitation regulation, the other for differential signal gain and offset correction. Use Value: 10 mV VIO and 1.1 µV/°C drift ensure <0.1% FS error across −40°C to +85°C ambient, meeting IEC 61000-6-2 immunity requirements. | Use Scenario: Linearizing and scaling output from Pt100 RTD sensors in industrial temperature loops. IC Role / Device Role / Timing Role: Precision current-source driver and buffer - provides constant 1 mA excitation and low-drift gain before ADC sampling. Use Value: 10¹² Ω input impedance prevents RTD self-heating errors; 34 µA quiescent current minimizes thermal rise in sealed probe housings. |
| Smoke Detector Analog Front-End | Level Transmitter Interface |
Use Scenario: Amplifying photoelectric chamber current in battery-powered residential smoke alarms. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier - converts pA-level photocurrent into measurable voltage with minimal added noise. Use Value: 68 nV/√Hz input noise and 34 µA supply current enable detection of sub-100 fA smoke-induced currents while sustaining >5-year CR123A battery life. | Use Scenario: Interfacing with capacitive or ultrasonic level sensors in chemical tank monitoring. IC Role / Device Role / Timing Role: Signal conditioner and buffer - isolates microcontroller ADC from noisy 4–20 mA loop references and sensor cables. Use Value: 85 dB PSRR and 60–87 dB CMRR reject common-mode noise from adjacent motor drives and solenoid valves in plant-floor environments. |
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 (2 mV max), higher IQ (550 µA), rail-to-rail I/O, 1.5 MHz GBW | Better DC accuracy but 16× higher power - unsuitable for battery operation | Select only if bandwidth >100 kHz and supply >3.3 V are available |
| OPA2333AIDR | Zero-drift architecture, 2 µV VIO, 17 µA IQ, 350 kHz GBW, no ESD spec listed | Superior long-term drift stability but lacks MIL-STD-883C ESD rating (2000 V HBM) | Prefer for lab-grade instruments; avoid in uncontrolled factory environments |
Compared with TLV2462IDR and OPA2333AIDR, the TLC27L2IDG4 offers the optimal balance of micropower operation, industrial temperature range, proven ESD robustness, and cost-effective SOIC-8 packaging - making it the preferred choice for field-deployed transmitters where longevity and reliability outweigh raw bandwidth or ultra-low offset.
Availability
TLC27L2IDG4 is available at Aetrix Electronics and suitable for pressure transmitter design, temperature sensor signal conditioning, and smoke detector analog front-ends requiring stable component supply across extended production lifecycles.
Supply support for TLC27L2IDG4 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 engineered for low-power, high-impedance sensor interfacing in industrial automation - emphasizing DC precision, single-supply usability, and ruggedness in harsh operating environments.
FAQ
What is the maximum operating temperature range for the TLC27L2IDG4?
The TLC27L2IDG4 is rated for operation from −40°C to +85°C, matching the I-suffix industrial temperature grade specified in the TI SLOS052E datasheet. This range is validated across all electrical parameters including input offset voltage, supply current, and common-mode rejection ratio - ensuring reliable performance in outdoor enclosures, factory floors, and unheated control cabinets where ambient extremes occur.
Does the TLC27L2IDG4 support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L2IDG4 supports true single-supply operation: its common-mode input voltage range extends to −0.2 V (below GND) at 25°C and −0.2 V to 3.5 V over the full −40°C to +85°C range when VDD = 5 V. This allows direct connection of grounded sensor outputs (e.g., bridge circuits) without level-shifting circuitry - a key enabler for simplified, low-component-count transmitter designs.
What is the typical supply current draw of the TLC27L2IDG4 at 5 V?
The TLC27L2IDG4 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 is confirmed in Section 5.4 of the SLOS052E datasheet and enables multi-year operation from primary lithium cells in wireless sensor nodes and portable safety devices.
Is the TLC27L2IDG4 pin-compatible with other SOIC-8 dual op-amps?
The TLC27L2IDG4 uses the industry-standard SOIC-8 pinout defined in Figure 4-1 of the SLOS052E datasheet (pin 1 = OUT1, pin 2 = IN−1, ..., pin 8 = VDD). While electrically distinct from bipolar or rail-to-rail input op-amps, its physical footprint matches generic SOIC-8 packages - allowing PCB reuse where layout accommodates its LinCMOS™ input stage requirements (e.g., guard traces for high-Z nodes).
What packaging and ordering information applies to the TLC27L2IDG4?
The TLC27L2IDG4 is supplied in an 8-pin SOIC (D) package, tape-and-reel format (2500 units per reel), with lead finish NiPdAu and RoHS compliance. Orderable part number TLC27L2IDG4 corresponds exclusively to this configuration - no PDIP, SOP, or TSSOP variants share the "DG4" suffix, and the "I" denotes the −40°C to +85°C temperature grade per TI's standard suffix coding.
TLC27L2IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
TLC27L2IDG4 FAQ
1.How can I place an order for TLC27L2IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2IDG4 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 TLC27L2IDG4 reliable?
The price and inventory of TLC27L2IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2IDG4 is usually 5 days.
3.What payment methods are accepted for TLC27L2IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2IDG4?
TLC27L2IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2IDG4 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 TLC27L2IDG4?
For technical support, including TLC27L2IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2IDG4 requirements.
6.How does Aetrix verify that TLC27L2IDG4 is sourced from the original manufacturer or authorized distributors?
All TLC27L2IDG4 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 TLC27L2IDG4 meets industry standards.
7.What is the process for return or replacement of TLC27L2IDG4?
All TLC27L2IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2IDG4, 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 TLC27L2IDG4 part is unused and in its original packaging.
Return procedure for TLC27L2IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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