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Texas Instruments TLC27L4CNS
- Part No.:
- TLC27L4CNS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC27L4CNS.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:545
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Product details
Overview
TLC27L4CNS from Texas Instruments is a precision quad operational amplifier using LinCMOS™ technology, designed for low-power, single-supply sensor signal conditioning. It delivers 10 mV max input offset voltage (25°C), ultra-low 195 µW quiescent power at 5 V, and rail-to-rail output swing with common-mode input extending below ground - enabling direct interfacing with 0–5 V transducers in battery-powered field instrumentation.
For engineers reviewing the TLC27L4CNS datasheet, TLC27L4CNS pinout, TLC27L4CNS application, or TLC27L4CNS equivalent, this page provides verified specifications, validated pin functions, confirmed operating conditions (0°C to 70°C), and real-world design context for transducer interface, analog front-end buffering, and low-voltage remote sensing systems.
Technical Context
The TLC27L4CNS integrates four independent high-impedance (10¹² Ω typical) op-amp channels on a single die using silicon-gate LinCMOS™ process, delivering bipolar-like precision without bipolar power penalties. Its input stage supports single-supply operation with VICR extending to –0.2 V (at VDD = 5 V), while output swings to within 50 mV of GND and 0.9 V of VDD.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2), latch-up immunity, and stable offset drift (0.1 µV/month). The device is characterized across 0°C to 70°C (C-suffix), with supply range 3–16 V and total supply current ≤68 µA (typical, 25°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max 10 mV at 25°C - sets baseline DC error in precision gain stages and sensor bridges |
| Supply Current (4 ch) | Typ 40–68 µA at 5 V - enables multi-year battery life in remote 4–20 mA loop transmitters |
| Common-Mode Input Range | –0.2 V to 3.5 V (VDD = 5 V) - allows direct connection to grounded sensors without level-shifting |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - supports full utilization of 5 V ADC reference rails |
| Input Impedance | 10¹² Ω typical - prevents loading of high-Z sources like piezoresistive pressure elements |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for <10 kHz sensor bandwidths including flow, temperature, and smoke detection |
| ESD Protection | 2000 V HBM - meets industrial handling requirements per MIL-STD-883C |
Pinout & Package
Package: 14-pin SOIC (NS), surface-mount, JEDEC MS-012 compliant, 3.9 mm × 8.7 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+, 2IN+, 3IN+, 4IN+ | Noninverting input (ch 1–4) | High-impedance node for sensor+/reference signals; accepts voltages down to –0.2 V |
| 1IN–, 2IN–, 3IN–, 4IN– | Inverting input (ch 1–4) | Feedback or differential sensing node; matched bias current minimizes offset error |
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output (ch 1–4) | Rail-to-rail capable: drives loads to within 50 mV of GND and 0.9 V of VDD |
| VDD | Positive power supply | Accepts 3–16 V; powers all four amplifiers; decoupling required at pin |
| GND | Ground / negative rail | Reference for all inputs/outputs; common return for supply and signal paths |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | 10¹² Ω input impedance and sub-pA bias current enable microvolt-level signal integrity in high-Z sensor interfaces |
| Single-supply optimized architecture | Common-mode input extends below GND and output swings to GND - eliminates need for dual supplies in portable systems |
| Ultra-low power consumption | 195 µW total (4 amps @ 5 V) - supports >5-year operation on coin-cell batteries in wireless sensor nodes |
| Offset voltage stability | 0.1 µV/month drift (including first 30 days) - ensures long-term calibration retention in field-deployed instrumentation |
| Integrated ESD protection | 2000 V HBM rating - reduces need for external protection components in industrial I/O modules |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermopile output in residential/commercial fire alarms. IC Role / Device Role / Timing Role: Quad-channel signal conditioner: one amp for sensor biasing, two for differential amplification, one for comparator reference buffering. Use Value: Rail-to-rail output and sub-10 mV offset ensure reliable detection across 0–5 V ADC range without trimming; 195 µW power enables standby current <10 µA. |
Use Scenario: Conditioning bridge output from MEMS or strain-gauge pressure sensors in HVAC or process control. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end: two amps form precision difference amplifier, third buffers reference, fourth drives ADC input. Use Value: 10¹² Ω input prevents bridge imbalance; –0.2 V common-mode range accommodates grounded bridge configurations; low drift maintains accuracy over 10+ year service life. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and scaling RTD or thermistor outputs for 4–20 mA loop transmission in industrial environments. IC Role / Device Role / Timing Role: Precision gain/offset stage: one amp for cold-junction compensation, two for ratiometric scaling, one for loop driver interface. Use Value: 0.1 µV/month offset stability ensures <0.1°C drift/year in Class A RTD systems; 3–16 V supply range supports wide-loop compliance. |
Use Scenario: Amplifying weak pyroelectric (PIR) sensor signals in security lighting and occupancy controls. IC Role / Device Role / Timing Role: Low-noise AC-coupled preamplifier: one amp for high-gain sensor interface, others for filtering and window-comparator setup. Use Value: 70 nV/√Hz input noise preserves SNR for µV-level PIR outputs; single-supply operation simplifies PCB layout in compact enclosures. |
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 | Lower offset (2 mV max), higher supply current (550 µA/ch), rail-to-rail I/O, 6 MHz GBW | Better for higher-speed, higher-accuracy designs; not suitable for ultra-low-power (<100 µA) battery systems | Select TLV2464IDR when bandwidth >100 kHz or offset <2 mV is required; avoid where quiescent current must stay <100 µA. |
| LM324DR | Higher offset (7 mV typ), no sub-ground input, 1.2 mA/ch supply current, BJT input stage | Cost-optimized general-purpose use; lacks LinCMOS™ input impedance and single-supply flexibility | Choose LM324DR only for non-critical, line-powered applications where input Z >10⁹ Ω and sub-GND operation are unnecessary. |
Compared with TLC27L4CNS, TLV2464IDR offers superior speed and precision but consumes ~10× more power, while LM324DR provides lower cost and wider temp range (–40°C to 125°C) at the expense of input performance and single-supply capability - making TLC27L4CNS optimal for low-power, high-Z, ground-referenced sensor front-ends.
Availability
TLC27L4CNS is available at Aetrix Electronics and suitable for smoke detectors, pressure transmitters, and temperature transmitters requiring stable component supply, long-term calibration retention, and ultra-low power consumption in industrial and building automation systems.
Supply support for TLC27L4CNS 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 expertise in precision op-amps and industrial signal chains.
The TLC27Lx family was engineered for low-power, high-impedance sensor interface in battery-operated and field-installed instrumentation - emphasizing offset stability, single-supply usability, and robustness in harsh environments.
FAQ
What is the maximum operating temperature range for the TLC27L4CNS?
The TLC27L4CNS is characterized for operation from 0°C to 70°C (C-suffix grade). It supports supply voltages from 3 V to 16 V across this range. At 70°C, key parameters such as supply current (max 56 µA), input offset voltage (max 12 mV), and common-mode input range (–0.2 V to 3.5 V) remain within specification. Exceeding 70°C may degrade offset drift and reliability.
Does the TLC27L4CNS support true rail-to-rail input?
No - the TLC27L4CNS does not support rail-to-rail input. Its common-mode input voltage range extends to –0.2 V (below GND) and up to 3.5 V (at VDD = 5 V), meaning it accepts inputs slightly below ground but not up to VDD. However, its output is rail-to-rail: it swings within 50 mV of GND and within 0.9 V of VDD, enabling full utilization of 5 V ADC references.
Can the TLC27L4CNS be used with a single 3.3 V supply?
Yes - the TLC27L4CNS is fully specified down to 3 V supply at 0°C to 70°C. At VDD = 3.3 V, it maintains functional operation with reduced output swing (within ~50 mV of GND and ~0.7 V of VDD), common-mode input range of –0.2 V to ~2.5 V, and supply current <50 µA. Performance metrics like bandwidth and slew rate scale downward, but remain adequate for <10 kHz sensor applications.
How does the input offset voltage drift specification apply to the TLC27L4CNS?
The TLC27L4CNS specifies input offset voltage drift as "typically 0.1 µV/month, including the first 30 days" - a long-term aging metric measured under controlled conditions. This drift is distinct from temperature coefficient (αVIO = 1.1 µV/°C, 25°C to 70°C) and reflects parametric stability over time in deployed systems, directly supporting calibration intervals exceeding 12 months in field instrumentation.
Is the TLC27L4CNS pin-compatible with other devices in the TLC27Lx family?
Yes - the TLC27L4CNS shares identical 14-pin SOIC (NS) pinout and electrical behavior with TLC27L4ACNS, TLC27L4BCNS, and TLC27L9CNS. All variants use the same pin configuration (Table 4-1), supply ranges, and thermal ratings. Only input offset voltage grade differs: 10 mV (TLC27L4), 5 mV (TLC27L4A), 2 mV (TLC27L4B), and 1 mV (TLC27L9); no layout change is needed when upgrading within the C-suffix series.
TLC27L4CNS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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-SO
TLC27L4CNS FAQ
1.How can I place an order for TLC27L4CNS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L4CNS 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 TLC27L4CNS reliable?
The price and inventory of TLC27L4CNS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L4CNS is usually 5 days.
3.What payment methods are accepted for TLC27L4CNS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L4CNS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L4CNS?
TLC27L4CNS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L4CNS 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 TLC27L4CNS?
For technical support, including TLC27L4CNS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L4CNS requirements.
6.How does Aetrix verify that TLC27L4CNS is sourced from the original manufacturer or authorized distributors?
All TLC27L4CNS 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 TLC27L4CNS meets industry standards.
7.What is the process for return or replacement of TLC27L4CNS?
All TLC27L4CNS units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L4CNS, 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 TLC27L4CNS part is unused and in its original packaging.
Return procedure for TLC27L4CNS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L4CNS Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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