My Inquiry
My Account
Texas Instruments TLC27L2IDR
- Part No.:
- TLC27L2IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L2IDR.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,151
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC27L2IDR from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. 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 direct interfacing with transducers in battery-powered field transmitters.
For engineers reviewing the TLC27L2IDR datasheet, TLC27L2IDR pinout, TLC27L2IDR application, or TLC27L2IDR equivalent, key selection criteria include its −40°C to +85°C industrial temperature rating, SOIC-8 package, LinCMOS™ input stage (10¹² Ω impedance, <60 pA bias current), and verified operation from 4 V to 16 V supply.
Technical Context
The TLC27L2IDR implements a silicon-gate LinCMOS™ process architecture that achieves stable input offset voltage (drift ≤0.1 μV/month) and high common-mode rejection (≥65 dB) without bipolar power penalties. Its dual-channel topology supports independent signal paths with matched gain and phase characteristics across temperature.
It operates with true single-supply capability: the common-mode input range extends 0.2 V below GND at VDD = 5 V, and output swings within 50 mV of GND and 0.9 V below VDD - eliminating need for level-shifting circuitry in 5 V sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets baseline DC error budget for precision amplification stages |
| Supply Current (typ) | 34 µA at VDD = 5 V - enables multi-year battery life in remote sensing nodes |
| Input Bias Current (max) | 60 pA at 25°C - preserves signal integrity with high-impedance sources (e.g., pH electrodes) |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct connection to grounded sensors |
| Output Swing (low) | ≤50 mV above GND - supports full-scale ADC utilization in single-supply systems |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for static/low-frequency transducer signals (e.g., pressure, temperature) |
| CMRR (min) | 60 dB over −40°C to +85°C - rejects noise from shared power rails in industrial environments |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, channel 1 | High-impedance node (10¹² Ω) for differential sensing or reference buffering |
| 1IN− | Inverting input, channel 1 | Accepts feedback network for configurable gain and filtering |
| 1OUT | Output, channel 1 | Rail-to-rail capable: drives ADC inputs or low-power analog stages directly |
| GND | Ground / negative supply | Reference for both inputs and outputs; supports single-supply operation |
| 2IN+ | Noninverting input, channel 2 | Independent second channel for dual-sensor interfaces or signal duplication |
| 2IN− | Inverting input, channel 2 | Configurable via external resistors for instrumentation or difference amplification |
| VDD | Positive supply | 4 V to 16 V operation - compatible with standard 5 V or 12 V industrial rails |
| NC | No connect | Pin 8 is unused; no internal connection - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-60 pA bias current enable microamp-level source interfacing without loading errors |
| Input offset drift | ≤0.1 μV/month - ensures long-term calibration stability in field-deployed equipment |
| ESD protection | Rated to 2000 V per MIL-STD-883C Method 3015.2 - reduces handling sensitivity during PCB assembly |
| Latch-up immunity | Designed-in robustness against transient-induced parasitic conduction - improves system reliability in noisy environments |
| Single-supply optimization | Input range includes GND and output swings to GND - eliminates need for dual supplies or charge pumps in portable designs |
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: Precision DC-coupled amplifier conditioning analog sensor outputs prior to ADC conversion. Use Value: Ultra-low supply current extends battery life; rail-to-rail output maximizes dynamic range into 8–12-bit ADCs. | Use Scenario: Signal conditioning for piezoresistive or capacitive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched gain and offset performance. Use Value: 10 mV max VIO and 60 dB min CMRR suppress common-mode noise from motor drives or solenoid valves. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermocouple outputs in 4–20 mA loop-powered field devices. IC Role / Device Role / Timing Role: Low-power, high-impedance buffer and gain stage operating from limited loop power (<4 mA). Use Value: 34 µA supply current leaves ample headroom for other circuitry; input extends below GND for cold-junction compensation. | Use Scenario: Amplifying weak pyroelectric (PIR) sensor outputs in security lighting or occupancy controls. IC Role / Device Role / Timing Role: High-gain, low-noise preamplifier with adjustable bandwidth for motion-triggered event detection. Use Value: 68 nV/√Hz input noise and 85 kHz unity-gain bandwidth preserve signal fidelity while rejecting 50/60 Hz interference. |
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 |
|---|---|---|---|
| TLV27L2IDR | Lower 25 µA supply current, same 10 mV VIO, but reduced CMRR (55 dB min) and narrower temp range (0°C to 70°C) | Best suited for cost-sensitive commercial-grade battery devices where extended temperature is not required | Select TLV27L2IDR only if ambient operating temperature stays within 0°C–70°C and CMRR >60 dB is not critical |
| OPA2333AIDR | Zero-drift architecture, 12 µV max VIO, higher 55 µA supply current, and wider 1.8 V–5.5 V supply range | Preferred for ultra-high-precision applications requiring sub-20 µV offset stability over time and temperature | Choose OPA2333AIDR when long-term DC accuracy outweighs ultra-low power requirements |
Compared with TLV27L2IDR and OPA2333AIDR, the TLC27L2IDR uniquely balances industrial temperature support (−40°C to +85°C), proven LinCMOS™ stability, and sub-40 µA power - making it optimal for field transmitters where reliability and longevity are prioritized over nanovolt-level precision.
Availability
TLC27L2IDR is available at Aetrix Electronics and suitable for smoke detectors, pressure transmitters, temperature transmitters, and motion detectors requiring stable component supply across industrial temperature ranges and long product lifecycles.
Supply support for TLC27L2IDR 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 experience in precision signal chain solutions.
The TLC27Lx family was engineered for low-power, high-impedance sensor interface applications in industrial automation and environmental monitoring - emphasizing long-term offset stability and single-supply operability.
FAQ
What is the maximum operating temperature range for the TLC27L2IDR?
The TLC27L2IDR is rated for continuous operation from −40°C to +85°C, matching the I-suffix industrial temperature grade. This range is validated per TI's SLOS052E datasheet Section 5.3 and supports deployment in harsh environments such as factory floors, outdoor metering, and HVAC systems without derating.
Does the TLC27L2IDR support true single-supply operation with inputs extending below ground?
Yes, the TLC27L2IDR supports true single-supply operation: its common-mode input voltage range extends to −0.2 V relative to GND at VDD = 5 V (Section 5.3), allowing direct connection to grounded sensors like thermistors or bridge circuits without level-shifting components.
What is the typical supply current consumption of the TLC27L2IDR at 5 V?
The TLC27L2IDR draws 34 µA typical supply current (two amplifiers) at VDD = 5 V and TA = 25°C, as specified in Section 5.4 Electrical Characteristics. At −40°C, current rises to 31 µA (min), and at +85°C, it drops to 15 µA (min), confirming ultra-low power behavior across the full industrial range.
Is the TLC27L2IDR pin-compatible with other devices in the TLC27Lx family?
Yes, the TLC27L2IDR uses the standard SOIC-8 (D) package and shares identical pinout with all TLC27Lx dual variants (e.g., TLC27L2AIDR, TLC27L7IDR), as confirmed in Figure 4-1 and Table 4-1 of the datasheet - enabling drop-in upgrades for improved offset or drift performance.
What packaging and tape-and-reel options are available for the TLC27L2IDR?
The TLC27L2IDR is supplied in an 8-pin SOIC (D) package and is available in tape-and-reel format per TI's orderable information (Section 10). Standard reel size is 2500 units per reel, compatible with automated SMT placement equipment used in high-volume manufacturing.
TLC27L2IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
TLC27L2IDR FAQ
1.How can I place an order for TLC27L2IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2IDR 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 TLC27L2IDR reliable?
The price and inventory of TLC27L2IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2IDR is usually 5 days.
3.What payment methods are accepted for TLC27L2IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2IDR?
TLC27L2IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2IDR 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 TLC27L2IDR?
For technical support, including TLC27L2IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2IDR requirements.
6.How does Aetrix verify that TLC27L2IDR is sourced from the original manufacturer or authorized distributors?
All TLC27L2IDR 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 TLC27L2IDR meets industry standards.
7.What is the process for return or replacement of TLC27L2IDR?
All TLC27L2IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2IDR, 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 TLC27L2IDR part is unused and in its original packaging.
Return procedure for TLC27L2IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L2IDR 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…
