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Texas Instruments TLC27L2BID
- Part No.:
- TLC27L2BID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L2BID.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
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Product details
Overview
TLC27L2BID from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 2 mV max input offset voltage at 25°C, ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling accurate amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L2BID datasheet, TLC27L2BID pinout, TLC27L2BID application, or TLC27L2BID equivalent, key selection criteria include its 2 mV precision grade, −0.2 V to 3.5 V common-mode input range at 5 V supply, 85 kHz unity-gain bandwidth, LinCMOS™ input impedance >10¹² Ω, and SOIC-8 packaging for space-constrained industrial analog front-ends.
Technical Context
The TLC27L2BID uses Texas Instruments' silicon-gate LinCMOS™ process to achieve stable input offset voltage (2 mV max, drift ≤0.1 μV/month) and femtoamp-level input bias currents (≤60 pA typ). Its architecture supports single-supply operation with common-mode input extending below ground, making it suitable for direct interfacing with grounded-sensor outputs.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and operates across −40°C to +85°C (I-suffix), with guaranteed performance over 4 V–16 V supply range - balancing precision, power efficiency, and robustness for remote sensing nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 2 mV at 25°C - enables high-accuracy DC-coupled gain stages without trimming in pressure/temperature transmitter front-ends. |
| Supply Current (typ) | 34 µA at VDD = 5 V - supports multi-year battery life in wireless sensor nodes and portable safety equipment. |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct connection to 0–3.3 V sensor outputs while maintaining accuracy near ground. |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for anti-aliasing and low-frequency filtering in flow/level transmitter signal chains. |
| Input Impedance | >10¹² Ω - prevents loading of high-impedance sources like piezoresistive bridges and thermistors. |
| Output Swing (low) | 1 mV above GND (typ) - ensures full dynamic range utilization in single-supply configurations with rail-referenced ADCs. |
| ESD Rating | 2000 V HBM - provides built-in handling robustness for assembly and field deployment in industrial environments. |
Pinout & Package
Package: SOIC-8 (D package), 3.9 mm × 4.9 mm, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, channel 1 | High-impedance node for differential or single-ended sensor signal routing; accepts voltages down to −0.2 V. |
| 1IN− | Inverting input, channel 1 | Feedback path interface; matched to 1IN+ for precision closed-loop gain stability. |
| 1OUT | Output, channel 1 | Rail-to-rail capable output driving ADC inputs or downstream filters; sinks/source up to ±30 mA. |
| GND | Ground reference | Low-impedance return for both channels and power; must be star-connected to minimize noise coupling. |
| 2IN+ | Noninverting input, channel 2 | Independent high-Z input for second sensor channel or reference buffer; identical specs to 1IN+. |
| 2IN− | Inverting input, channel 2 | Separate feedback node enabling dual independent amplifiers on one die without crosstalk. |
| VDD | Positive supply | Single 4–16 V rail powering both op-amps; decoupling capacitor required within 1 cm for stability. |
| NC | No connect | Pin 8 is unused in SOIC-8 package; left unconnected per TI design guidance. |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | Enables 10¹² Ω input impedance and sub-60 pA bias current - critical for high-resistance sensor interfaces without signal degradation. |
| Input offset voltage drift | 0.1 μV/month - ensures long-term calibration stability in field-deployed equipment requiring minimal maintenance. |
| Rail-to-rail output swing | Drives to within 1 mV of GND and 0.9 V below VDD - maximizes usable ADC input range in 3.3 V or 5 V systems. |
| Wide supply range | Operates from 4 V to 16 V across −40°C to +85°C - accommodates aging batteries and unregulated industrial rails without external regulators. |
| ESD protection | 2000 V HBM rating - eliminates need for external TVS diodes in PCB layout, reducing BOM count and board area. |
Applications
| Pressure Transmitter | Smoke Detector |
|---|---|
Use Scenario: Amplifying millivolt-level output from silicon piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with gain and offset adjustment. Use Value: 2 mV max VIO and 0.1 μV/month drift maintain <0.1% full-scale error over 5 years without recalibration. | Use Scenario: Conditioning ionization chamber current signals in residential and commercial fire alarm units. IC Role / Device Role / Timing Role: Low-noise transimpedance amplifier converting pA-level current to measurable voltage. Use Value: 68 nV/√Hz input noise and 34 µA supply current enable reliable detection while extending alkaline battery life beyond 10 years. |
| Flow Transmitter | Temperature Transmitter |
Use Scenario: Signal conditioning for turbine or ultrasonic flow meter pulse outputs and analog voltage outputs. IC Role / Device Role / Timing Role: Dual-channel buffer and level-shifter for isolated 4–20 mA loop drivers. Use Value: Dual op-amp integration reduces footprint vs discrete solutions; rail-to-rail output ensures compatibility with DACs and current-sense amplifiers. | Use Scenario: Linearizing and amplifying RTD or thermistor bridge outputs in industrial temperature monitoring nodes. IC Role / Device Role / Timing Role: Precision difference amplifier with programmable gain for cold-junction compensation. Use Value: Common-mode input range extending below GND allows direct connection to grounded bridge configurations without level-shifting circuitry. |
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 |
|---|---|---|---|
| TLC27L2ID | 10 mV max VIO (vs 2 mV), otherwise identical SOIC-8 package, I-suffix temp range, and LinCMOS™ specs. | Suitable for cost-sensitive applications where 5× lower offset isn't required - e.g., non-critical sensor buffering. | Select TLC27L2ID only when system-level offset budget permits ≥10 mV; retains same PCB layout and thermal profile. |
| TLV2462IDR | Rail-to-rail I/O, 600 µA supply current, 6.5 MHz GBW, but higher power and no LinCMOS™ input impedance. | Better for AC-coupled, higher-speed applications (e.g., audio preamps); unsuitable for ultra-low-power or high-Z sensor use. | Choose TLV2462IDR only if bandwidth >100 kHz is needed and battery life is secondary; requires redesign for power delivery and noise filtering. |
Compared with TLC27L2ID and TLV2462IDR, the TLC27L2BID uniquely balances sub-2 mV precision, nanoamp-level input bias, and microamp quiescent current - making it irreplaceable in long-life, high-impedance, single-supply industrial sensor nodes where offset stability and power are co-constrained.
Availability
TLC27L2BID is available at Aetrix Electronics and suitable for pressure transmitters, smoke detectors, flow transmitters, and temperature transmitters requiring stable component supply across extended product lifecycles and harsh environmental conditions.
Supply support for TLC27L2BID 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-amps and industrial-grade signal chain components.
The TLC27Lx family was designed specifically for low-power, high-precision analog signal conditioning in field-mounted industrial sensors - emphasizing offset stability, rail-compatible operation, and robustness across extended temperature ranges.
FAQ
What is the maximum input offset voltage specification for TLC27L2BID at 25°C?
The TLC27L2BID has a maximum input offset voltage of 2 mV at 25°C, as specified in the Electrical Characteristics table for I-suffix devices under VDD = 5 V test conditions. This value is guaranteed across the full operating temperature range of −40°C to +85°C, with worst-case drift limited to 0.1 μV/month for long-term calibration stability in the TLC27L2BID.
Does TLC27L2BID support true single-supply operation with inputs extending below ground?
Yes, the TLC27L2BID supports true single-supply operation with a common-mode input voltage range extending to −0.2 V at VDD = 5 V. This allows direct interfacing with grounded sensors or transducers without level-shifting circuitry - a confirmed feature of the I-suffix LinCMOS™ design validated in Section 5.3 Recommended Operating Conditions of the TLC27L2BID datasheet.
What is the typical supply current consumption of TLC27L2BID at 5 V supply?
The TLC27L2BID draws a typical supply current of 34 µA at VDD = 5 V and 25°C, with a maximum of 42 µA over the full −40°C to +85°C operating range. This ultra-low quiescent current is measured with both amplifiers active and no load, enabling multi-year operation from coin-cell or AA batteries in the TLC27L2BID-based designs.
Which package type is used for the TLC27L2BID orderable part?
The TLC27L2BID is supplied in an 8-pin SOIC (Small Outline Integrated Circuit) package, designated as "D" in Texas Instruments' packaging nomenclature. This surface-mount package measures 3.9 mm × 4.9 mm, complies with JEDEC MS-012AC standards, and is compatible with standard reflow soldering processes - confirmed in the Device Information table and Section 10 of the TLC27L2BID datasheet.
Is the TLC27L2BID pin-compatible with other members of the TLC27Lx family?
Yes, the TLC27L2BID shares identical pin configuration and function mapping with all TLC27Lx dual op-amps in SOIC-8 (D) package, including TLC27L2ID, TLC27L2AID, and TLC27L7ID. Pin functions - such as 1IN+, 1IN−, 1OUT, GND, 2IN+, 2IN−, VDD, and NC - are fully consistent across these variants, enabling drop-in replacement for offset grade upgrades without PCB modification in the TLC27L2BID footprint.
TLC27L2BID 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:
- 240 µV
- 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
TLC27L2BID FAQ
1.How can I place an order for TLC27L2BID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2BID 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 TLC27L2BID reliable?
The price and inventory of TLC27L2BID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2BID is usually 5 days.
3.What payment methods are accepted for TLC27L2BID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2BID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2BID?
TLC27L2BID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2BID 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 TLC27L2BID?
For technical support, including TLC27L2BID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2BID requirements.
6.How does Aetrix verify that TLC27L2BID is sourced from the original manufacturer or authorized distributors?
All TLC27L2BID 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 TLC27L2BID meets industry standards.
7.What is the process for return or replacement of TLC27L2BID?
All TLC27L2BID units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2BID, 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 TLC27L2BID part is unused and in its original packaging.
Return procedure for TLC27L2BID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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