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Texas Instruments TLC27L4BCDR
- Part No.:
- TLC27L4BCDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L4BCDR.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,766
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Product details
Overview
TLC27L4BCDR from Texas Instruments is a precision quad operational amplifier in SOIC-14 package, featuring 2 mV max input offset voltage (25°C), ultra-low 195 µW power consumption at 5 V, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C–70°C and supports single-supply sensor signal conditioning in battery-powered field transmitters.
For engineers reviewing the TLC27L4BCDR datasheet, TLC27L4BCDR pinout, TLC27L4BCDR application, or TLC27L4BCDR equivalent, this page delivers verified electrical specs, validated pin functions, confirmed operating conditions, and real-world use cases for low-power analog front-end design.
Technical Context
The TLC27L4BCDR uses TI's LinCMOS™ silicon-gate process to achieve 10¹² Ω typical input impedance and sub-picoampere input bias current (0.6 pA typ at 25°C), enabling high-impedance sensor interfacing without loading. Its common-mode input range extends 0.2 V below ground, supporting true single-supply operation with inputs referenced to GND.
It delivers 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate at 5 V, optimized for DC-coupled amplification and low-frequency active filtering in industrial transmitter modules-without bipolar-style power penalties.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 2 mV max at 25°C - enables <1% error in 2 V full-scale sensor outputs without trimming |
| Supply Current (4 amps) | 68 µA max at 25°C - supports >10-year battery life in remote 4–20 mA loop-powered devices |
| Input Impedance | 10¹² Ω typical - preserves signal integrity from high-Z sources like pH electrodes or piezoresistive sensors |
| Common-Mode Input Range | –0.2 V to 3.5 V at 5 V supply - allows direct GND-referenced input in single-supply systems |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - ensures usable dynamic range near supply rails |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for anti-aliasing and loop-filtering in 10 Hz–1 kHz industrial sensor signals |
| ESD Protection | 2000 V HBM - meets MIL-STD-883C, Method 3015.2 for robust handling in manufacturing environments |
Pinout & Package
Package: SOIC-14 (D suffix), 8.65 mm × 3.91 mm, surface-mount, JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (ch. 1–4) | High-impedance node for sensor/feedback signal routing; accepts voltages down to –0.2 V |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (ch. 1–4) | Accepts differential or feedback signals; matched to noninverting inputs for CMRR >65 dB |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (ch. 1–4) | Capable of sourcing/sinking ±30 mA; swings within 50 mV of GND and 0.9 V of VDD |
| VDD | Positive power supply | Supports 3–16 V operation; total supply current ≤92 µA at 10 V, 25°C |
| GND | Ground / negative supply | Reference for all inputs and outputs; common return for four independent amplifier channels |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power | 195 µW per amplifier at 5 V - enables multi-channel analog front ends in energy-constrained nodes |
| Latch-up immunity | Designed-in protection per JEDEC JESD78 - prevents catastrophic failure during overvoltage transients |
| Offset drift stability | 0.1 µV/month (including first 30 days) - reduces long-term calibration drift in field-deployed instrumentation |
| Rail-to-rail output | Swings to within 50 mV of GND - maximizes ADC utilization in single-supply 0–3.3 V systems |
| Single-supply optimized | Common-mode range includes negative rail - eliminates need for dual supplies in portable sensor modules |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifies millivolt-level output from piezoresistive pressure sensors in 4–20 mA loop-powered field instruments. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low offset and drift, driving voltage-to-current converter. Use Value: 2 mV max VIO ensures <0.1% FS error across 0–100 psi range; 195 µW power enables continuous operation on 3.6 V lithium battery. |
Use Scenario: Conditions output from RTD or thermistor bridges in HVAC and process control transmitters. IC Role / Device Role / Timing Role: Low-bias-current instrumentation amplifier front end, rejecting common-mode noise in noisy plant environments. Use Value: 0.6 pA input bias current prevents self-heating errors in high-resistance RTD measurements; 10¹² Ω input impedance avoids bridge imbalance. |
| Flow Transmitter | Smoke Detector Analog Front End |
Use Scenario: Processes differential pressure signals from orifice plates or vortex shedding sensors in water/gas metering. IC Role / Device Role / Timing Role: Low-noise, low-drift signal conditioner feeding sigma-delta ADC in battery-operated flow meters. Use Value: 70 nV/√Hz input noise preserves SNR for sub-1% flow accuracy; 85 kHz bandwidth supports fast transient response during valve switching. |
Use Scenario: Amplifies weak photocurrent from ionization chamber in residential/commercial smoke alarms. IC Role / Device Role / Timing Role: High-input-impedance transimpedance amplifier converting pA-level current to measurable voltage. Use Value: 10¹² Ω input impedance minimizes signal loss; ESD-hardened inputs withstand handling during automated assembly without parametric degradation. |
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 |
|---|---|---|---|
| TLV2464IDR | Higher supply current (550 µA/amp), 6.5 V max supply, rail-to-rail I/O, 2.2 MHz GBW | Better for AC-coupled, higher-speed signal paths; unsuitable for ultra-low-power battery designs | Select when bandwidth >100 kHz and rail-to-rail input are required; avoid if <100 µA total quiescent current is mandatory |
| OPA2333PWR | Zero-drift architecture, 12 µV max VIO, 17 µA/amp supply current, 1.8–5.5 V supply range | Superior DC precision and lower power, but limited to 5.5 V max and narrower temp range (–40°C to +125°C) | Prefer for high-accuracy, low-voltage (<5.5 V), wide-temp industrial sensing; not drop-in due to different pinout and supply limits |
Compared with TLV2464IDR and OPA2333PWR, the TLC27L4BCDR offers the lowest power among precision quads with extended 3–16 V supply flexibility and proven reliability in legacy 4–20 mA transmitter designs-but trades off bandwidth and zero-drift performance for cost and voltage-range advantages.
Availability
TLC27L4BCDR is available at Aetrix Electronics and suitable for pressure transmitter design, temperature transmitter calibration, and smoke detector analog front-end development requiring stable component supply and long-lifecycle support.
Supply support for TLC27L4BCDR 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 op amps and industrial signal chains.
The TLC27Lx family was designed for low-power, high-precision sensor signal conditioning in field-mounted industrial transmitters-emphasizing offset stability, rail-compatible operation, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27L4BCDR?
The TLC27L4BCDR is characterized for operation from 0°C to 70°C (C-suffix grade). It supports supply voltages from 3 V to 16 V within this range. At 70°C, key parameters such as supply current remain within 56 µA max and input offset voltage stays ≤12 mV, ensuring reliable performance in enclosed industrial enclosures without active cooling.
Does the TLC27L4BCDR support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L4BCDR supports true single-supply operation: its common-mode input voltage range extends to –0.2 V at 5 V supply, allowing both inputs to be biased at GND. This eliminates the need for level-shifting circuitry in sensor interfaces where the signal source is ground-referenced, simplifying PCB layout and reducing component count in the TLC27L4BCDR-based analog front end.
What is the typical input bias current of the TLC27L4BCDR, and why does it matter for sensor applications?
The TLC27L4BCDR has a typical input bias current of 0.6 pA at 25°C. This ultra-low value is critical when interfacing with high-impedance sensors (e.g., pH electrodes, piezoelectric elements, or unbuffered RTDs), as it prevents signal attenuation and measurement errors caused by current flowing into the op amp inputs. At 70°C, bias current remains ≤600 pA, preserving accuracy across the full operating range.
Can the TLC27L4BCDR drive capacitive loads, and what is its phase margin?
The TLC27L4BCDR has a phase margin of 34° at 25°C with 20 pF load and 10 mV input (unity-gain configuration). It remains stable with up to 20 pF capacitive load at the output; larger loads may require isolation resistors. This margin ensures predictable step response without ringing in closed-loop configurations used in TLC27L4BCDR-based active filters and transimpedance amplifiers.
Is the TLC27L4BCDR pin-compatible with other TLC27Lx variants like the TLC27L4CDR or TLC27L4BIDR?
Yes, the TLC27L4BCDR shares identical SOIC-14 (D) package and pinout with all C-suffix TLC27Lx variants-including TLC27L4CDR and TLC27L4ACDR. Pin functions (e.g., 1IN+, 1IN–, 1OUT, VDD, GND) are fully consistent across the family. However, offset voltage grade (2 mV vs. 10 mV) and temperature range (0°C–70°C only) differ, so functional substitution requires validation of system-level DC error budgets.
TLC27L4BCDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC27L4BCDR FAQ
1.How can I place an order for TLC27L4BCDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4BCDR 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 TLC27L4BCDR reliable?
The price and inventory of TLC27L4BCDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4BCDR is usually 5 days.
3.What payment methods are accepted for TLC27L4BCDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4BCDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4BCDR?
TLC27L4BCDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4BCDR 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 TLC27L4BCDR?
For technical support, including TLC27L4BCDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4BCDR requirements.
6.How does Aetrix verify that TLC27L4BCDR is sourced from the original manufacturer or authorized distributors?
All TLC27L4BCDR 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 TLC27L4BCDR meets industry standards.
7.What is the process for return or replacement of TLC27L4BCDR?
All TLC27L4BCDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4BCDR, 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 TLC27L4BCDR part is unused and in its original packaging.
Return procedure for TLC27L4BCDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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