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Texas Instruments TLC27L4BID
- Part No.:
- TLC27L4BID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4BID.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:138
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Product details
Overview
TLC27L4BID from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 2 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 accurate amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L4BID datasheet, TLC27L4BID pinout, TLC27L4BID application, or TLC27L4BID equivalent, this page provides verified specifications, SOIC-14 pin mapping, real-world use cases in industrial sensing, and validated alternative options for design continuity and supply resilience.
Technical Context
The TLC27L4BID 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 with inputs referenced to ground.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2) and latch-up immunity. Designed for –40°C to +85°C operation (I-suffix), it maintains stable offset drift (1.1 µV/°C avg) and CMRR ≥65 dB across temperature and supply variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIO (max) | 2000 µV at 25°C - enables high-accuracy DC-coupled amplification in pressure/temperature transmitters without trimming. |
| IDD (quiescent) | 68 µA max (4 amps) at 25°C, 5 V - supports multi-year battery life in remote wireless sensors. |
| Input Impedance | 10¹² Ω typical - preserves signal integrity when interfacing high-Z sources like piezoresistive bridges or pH electrodes. |
| Common-Mode Range | –0.2 V to 3.5 V (at VDD = 5 V) - allows direct ground-referenced input signals in single-supply systems. |
| Output Swing | Within 50 mV of GND and within 0.9 V of VDD - delivers usable dynamic range near supply rails for low-voltage ADCs. |
| Unity-Gain BW | 85 kHz at VDD = 5 V - sufficient for slow-varying industrial process signals (e.g., 4–20 mA loop conditioning). |
| CMRR | 65 dB min (0°C to 85°C) - rejects noise from shared power rails in dense analog front-ends. |
Pinout & Package
Package: SOIC-14 (D package), surface-mount, 8.65 mm × 3.91 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal routing; accepts voltages down to –0.2 V. |
| 1IN– | Inverting input, Channel 1 | Feedback node for closed-loop gain configuration; matched to 1IN+ for common-mode rejection. |
| 1OUT | Output, Channel 1 | Rail-to-rail capable output driving loads ≥1 MΩ; limited sourcing/sinking to ±30 mA. |
| 2IN+, 2IN–, 2OUT | Inputs/Output, Channel 2 | Electrically identical to Channel 1; independent operation enables dual-sensor buffering or differential pair stages. |
| 3IN+, 3IN–, 3OUT | Inputs/Output, Channel 3 | Same specification set as Ch1/Ch2; supports three-channel signal chains (e.g., multi-axis motion detection). |
| 4IN+, 4IN–, 4OUT | Inputs/Output, Channel 4 | Enables full quad functionality - e.g., simultaneous gain, filtering, level-shifting, and drive in compact layouts. |
| GND | Ground / Negative Supply | Reference for all inputs and outputs; must be low-impedance to maintain PSRR and avoid ground bounce. |
| VDD | Positive Power Supply | Accepts 4 V to 16 V over –40°C to +85°C; powers all four amplifiers; decoupling required per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 195 µW total (4 amps @ 5 V, 25°C) - extends battery life in portable gas detectors and wireless sensor nodes. |
| Input offset voltage stability | 0.1 µV/month drift (including first 30 days) - eliminates need for periodic recalibration in field-deployed instrumentation. |
| Rail-to-rail output capability | Swings to within 50 mV of GND and 0.9 V of VDD - maximizes ADC utilization in 3.3 V or 5 V systems. |
| ESD protection | 2000 V HBM rating - withstands handling and board-level ESD events without functional failure or parametric shift. |
| Latch-up immunity | Designed-in robustness against transient-induced latch-up - ensures reliability in noisy industrial environments. |
Applications
| Pressure Transmitter | Smoke Detector |
|---|---|
Use Scenario: Amplifies low-level mV output from piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset compensation and rail-to-rail output for 12-bit ADC interface. Use Value: 2 mV VIO max ensures <0.1% full-scale error at 2 V span; ultra-low IDD enables continuous monitoring on 2xAA batteries for >5 years. |
Use Scenario: Conditions ionization chamber current (pA–nA range) and drives comparator threshold circuitry. IC Role / Device Role / Timing Role: High-impedance transimpedance amplifier with low input bias current (0.6 pA typ) and stable DC gain. Use Value: 10¹² Ω input impedance prevents signal loss; single-supply operation simplifies PCB layout in space-constrained detector housings. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Interfaces Pt100 RTD via 3-wire Wheatstone bridge, rejecting lead resistance and ambient noise. IC Role / Device Role / Timing Role: Instrumentation-grade buffer and difference amplifier with high CMRR (≥65 dB) and low thermal drift. Use Value: 1.1 µV/°C αVIO minimizes temperature-induced gain error; wide VDD range (4–16 V) supports 24 V loop-powered designs. |
Use Scenario: Amplifies microvolt-level signals from PIR sensors before window-comparator triggering. IC Role / Device Role / Timing Role: Low-noise (70 nV/√Hz), low-drift preamplifier stage with adjustable gain and offset nulling. Use Value: Sub-pA input bias avoids false triggers from leakage; ultra-low power enables always-on occupancy sensing in smart lighting systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L4BI | Same VIO (2 mV), but rated for –40°C to +85°C; identical SOIC-14 package and pinout. | Direct replacement where extended temperature range is required; no design changes needed. | Select TLC27L4BI for industrial outdoor deployments or automotive under-hood sensing. |
| TLC27L4CD | Higher VIO (10 mV max), same package and supply range; lower cost grade for less demanding applications. | Suitable for non-critical signal paths where calibration or digital correction compensates for offset. | Choose TLC27L4CD when system-level accuracy permits higher initial offset and lower BOM cost is prioritized. |
Compared with TLC27L4BID, TLC27L4BI offers guaranteed performance over –40°C to +85°C without layout or schematic change, while TLC27L4CD trades 5× higher offset for cost reduction in non-precision roles - enabling tiered design reuse across product families.
Availability
TLC27L4BID is available at Aetrix Electronics and suitable for pressure transmitters, smoke detectors, and temperature transmitters requiring stable component supply across long-lifecycle industrial programs.
Supply support for TLC27L4BID 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 design and manufacturing.
The TLC27Lx family was engineered for ultra-low-power, high-impedance sensor signal conditioning in battery-operated and loop-powered industrial instrumentation - emphasizing offset stability, rail-to-rail operation, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27L4BID?
The TLC27L4BID is characterized for operation from –40°C to +85°C, matching the I-suffix industrial temperature grade. This range is validated per TI's SLOS053E datasheet Section 5.3, with electrical parameters guaranteed across the full span - making TLC27L4BID suitable for outdoor environmental sensors and factory-floor control systems where ambient extremes occur.
Does the TLC27L4BID support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L4BID supports true single-supply operation: its common-mode input voltage range extends to –0.2 V (below GND) at VDD = 5 V, and its output swings within 50 mV of GND. This allows direct connection of ground-referenced sensors (e.g., strain gauges, thermocouples with cold-junction compensation) without level-shifting circuitry - a key feature confirmed in Sections 5.3 and 5.4 of the TLC27L4BID datasheet.
What is the typical input bias current of the TLC27L4BID, and why does it matter for sensor interfaces?
The TLC27L4BID exhibits a typical input bias current of 0.6 pA at 25°C (Section 5.4), critical for interfacing high-impedance sources like pH electrodes, photodiodes, or capacitive humidity sensors. Such ultra-low bias prevents signal attenuation and DC error - for example, a 1 GΩ source sees only 0.6 mV error (0.6 pA × 1 GΩ), preserving measurement fidelity in analytical instrumentation where TLC27L4BID is commonly deployed.
Can the TLC27L4BID drive capacitive loads, and what is its phase margin?
The TLC27L4BID has a typical phase margin of 34° at unity gain (VDD = 5 V, 25°C, CL = 20 pF), per Section 5.5. It is stable with ≤20 pF capacitive loads; larger loads may cause ringing or oscillation. For driving ADC input capacitors or long traces, external isolation resistors (e.g., 100 Ω in series) are recommended - a design consideration explicitly noted in TI's Application and Implementation section (Section 7.1) for TLC27L4BID.
Is the TLC27L4BID pin-compatible with other devices in the TLC27Lx family?
Yes, all TLC27Lx quad op amps - including TLC27L4BID, TLC27L4CD, TLC27L4AI, and TLC27L9ID - share identical SOIC-14 (D) pinout per Figure 4-1 and Table 4-1 of the datasheet. This allows drop-in substitution between grades (e.g., upgrading from TLC27L4CD to TLC27L4BID) without PCB revision, provided supply and temperature requirements align with the selected variant.
TLC27L4BID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27L4BID FAQ
1.How can I place an order for TLC27L4BID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4BID 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 TLC27L4BID reliable?
The price and inventory of TLC27L4BID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4BID is usually 5 days.
3.What payment methods are accepted for TLC27L4BID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4BID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4BID?
TLC27L4BID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4BID 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 TLC27L4BID?
For technical support, including TLC27L4BID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4BID requirements.
6.How does Aetrix verify that TLC27L4BID is sourced from the original manufacturer or authorized distributors?
All TLC27L4BID 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 TLC27L4BID meets industry standards.
7.What is the process for return or replacement of TLC27L4BID?
All TLC27L4BID units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4BID, 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 TLC27L4BID part is unused and in its original packaging.
Return procedure for TLC27L4BID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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