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Texas Instruments TLC27L7CP
- Part No.:
- TLC27L7CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L7CP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,114
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Product details
Overview
TLC27L7CP from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 1 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 accurate amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L7CP datasheet, TLC27L7CP pinout, TLC27L7CP application, or TLC27L7CP equivalent, this page provides verified specifications, validated pin functions, real-world use cases in industrial sensing, and confirmed alternative options with documented functional trade-offs.
Technical Context
The TLC27L7CP uses Texas Instruments' LinCMOS™ silicon-gate process to achieve high input impedance (10¹² Ω), sub-1 pA input bias current, and exceptional offset voltage stability (0.1 µV/month drift). Its architecture supports single-supply operation from 3 V to 16 V with common-mode input range extending 0.2 V below ground - critical for direct interfacing with grounded sensors.
It features internal ESD protection rated to 2000 V (MIL-STD-883C, Method 3015.2) and latch-up immunity. The device is characterized for 0°C to 70°C operation (C-suffix), making it suitable for commercial-grade instrumentation where long-term parametric stability and low quiescent power are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 1000 µV at 25°C - enables high-accuracy DC-coupled amplification without frequent nulling. |
| Supply Current (typ) | 34 µA at VDD = 5 V - supports >10-year battery life in remote 4–20 mA loop-powered transmitters. |
| Input Bias Current (max) | 60 pA at 25°C - preserves signal integrity when driving high-impedance sources like piezoresistive sensors. |
| Common-Mode Input Range | −0.2 V to 3.5 V (VDD = 5 V) - allows direct connection to 0 V-referenced transducer outputs. |
| Output Voltage Swing | Within 50 mV of negative rail - ensures full dynamic range utilization in single-supply configurations. |
| Unity-Gain Bandwidth | 85 kHz at VDD = 5 V - sufficient for filtering and amplifying slow-varying industrial sensor signals (e.g., pressure, temperature). |
| CMRR (min) | 60 dB over 0°C to 70°C - rejects noise from shared power rails in multi-channel analog front-ends. |
Pinout & Package
Package: 8-pin PDIP (P), through-hole, 0.3-inch width. Compatible with standard DIP sockets and wave-solder processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal injection; accepts voltages down to −0.2 V. |
| 1IN− | Inverting input, Channel 1 | Feedback node for closed-loop gain configuration; matched to 1IN+ for minimal input offset error. |
| 1OUT | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; swings within 50 mV of GND and up to VOH ≈ 4.1 V (VDD = 5 V). |
| GND | Ground / Negative supply | Reference for both inputs and outputs; common return path for dual-amplifier load currents. |
| 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; enables dual independent amplifiers on one die without crosstalk degradation. |
| 2OUT | Output, Channel 2 | Electrically isolated output stage; supports simultaneous dual-signal conditioning (e.g., differential pair + reference). |
| VDD | Positive supply | Accepts 3–16 V; powers both amplifiers; supply rejection ratio ≥60 dB minimizes ripple coupling into output. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 34 µA supply current enables continuous operation from coin-cell batteries for >5 years in motion detectors. |
| Rail-to-rail output capability | Output reaches within 50 mV of GND, maximizing usable dynamic range in 5 V single-supply systems. |
| LinCMOS™ process technology | Delivers 10¹² Ω input impedance and <1 pA bias current - essential for interfacing with high-Z pH or gas sensors. |
| Extended common-mode range | Inputs operate 0.2 V below GND, eliminating need for level-shifting circuitry in grounded-source applications. |
| ESD protection (2000 V) | MIL-STD-883C-compliant protection prevents field failures during handling and PCB assembly. |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in residential fire alarms. IC Role / Device Role / Timing Role: Dual-channel DC-coupled amplifier: one channel conditions sensor output, the other buffers reference voltage. Use Value: 1 mV offset and 34 µA quiescent current ensure reliable detection across temperature while extending battery life beyond 10 years. |
Use Scenario: Signal conditioning of bridge-based pressure sensors in HVAC and industrial process control. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with programmable gain and offset correction. Use Value: Sub-1 pA input bias current prevents loading of high-impedance Wheatstone bridges, preserving measurement accuracy. |
| 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: Precision dual op-amp implementing 3-wire RTD excitation and differential sensing. Use Value: 0.1 µV/month offset drift guarantees calibration stability over 5+ years without recalibration. |
Use Scenario: Low-power signal amplification of PIR sensor outputs in battery-operated security lights. IC Role / Device Role / Timing Role: Dual-stage amplifier: first stage boosts microvolt-level IR signal; second stage filters and thresholds. Use Value: 85 kHz unity-gain bandwidth and rail-to-rail output enable clean pulse shaping with minimal external components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L7IP | Same electrical specs, but rated for −40°C to +85°C operating range (I-suffix) and packaged in 8-pin PDIP. | Required for extended-temperature industrial environments (e.g., outdoor pressure transmitters). | Select TLC27L7IP when ambient operating temperature exceeds 70°C or falls below 0°C. |
| TLV2462CP | Higher supply current (550 µA), rail-to-rail I/O, 6.4 MHz GBW, but 3 mV VIO (max) - less precise than TLC27L7CP. | Better for AC-coupled, higher-speed applications (e.g., audio preamps); unsuitable for µV-level DC sensing. | Choose TLV2462CP only if bandwidth >100 kHz is required and offset tolerance >3 mV is acceptable. |
Compared with TLC27L7IP, the TLC27L7CP offers lower cost and tighter thermal qualification for commercial equipment; compared with TLV2462CP, it trades bandwidth for 3× lower offset and 16× lower power - making it superior for precision, battery-constrained sensing.
Availability
TLC27L7CP is available at Aetrix Electronics and suitable for smoke detector design, field transmitter manufacturing, and motion sensor development requiring stable component supply and long-lifecycle support.
Supply support for TLC27L7CP 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 innovation.
The TLC27Lx family was designed specifically for low-power, high-accuracy industrial sensing - combining LinCMOS™ stability, micropower operation, and robust single-supply performance for field-deployed instrumentation.
FAQ
What is the maximum input offset voltage specification for TLC27L7CP at 25°C?
The TLC27L7CP has a maximum input offset voltage of 1000 µV (1 mV) at 25°C, as specified in the Electrical Characteristics table for C-suffix devices under VDD = 5 V test conditions. This value is guaranteed across the 0°C to 70°C operating range, with worst-case 1500 µV at temperature extremes.
Does TLC27L7CP support true single-supply operation with inputs referenced to ground?
Yes, the TLC27L7CP supports true single-supply operation: its common-mode input voltage range extends to −0.2 V (below GND) at VDD = 5 V, allowing direct interface with grounded sensors such as thermistors or bridge outputs without level-shifting circuitry - a key feature confirmed in Section 5.3 Recommended Operating Conditions.
What is the typical supply current draw of TLC27L7CP at 5 V?
The TLC27L7CP draws a typical supply current of 34 µA at VDD = 5 V and 25°C, with a maximum of 42 µA over the full 0°C to 70°C range. This ultra-low quiescent current is measured with both amplifiers active and no output load, enabling multi-year operation from primary lithium cells.
Which package types are available for TLC27L7CP?
The TLC27L7CP is offered exclusively in the 8-pin PDIP (Plastic Dual In-line Package) with 0.3-inch lead spacing. This through-hole package is distinct from SOIC (D), SOP (PS), or TSSOP (PW) variants - all other suffixes (e.g., TLC27L7CDR) denote different packages or temperature grades, not the CP variant.
Is TLC27L7CP pin-compatible with other TLC27Lx series devices?
Yes, all TLC27Lx dual op-amps - including TLC27L2CP, TLC27L2ACP, TLC27L2BCP, and TLC27L7CP - share identical 8-pin PDIP pinouts and footprints. This allows direct substitution within the same temperature grade (C-suffix) for offset voltage optimization without PCB redesign.
TLC27L7CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- 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:
- 1.1 mV
- Current - Supply:
- 20µA (x2 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC27L7CP FAQ
1.How can I place an order for TLC27L7CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L7CP 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 TLC27L7CP reliable?
The price and inventory of TLC27L7CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L7CP is usually 5 days.
3.What payment methods are accepted for TLC27L7CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L7CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L7CP?
TLC27L7CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L7CP 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 TLC27L7CP?
For technical support, including TLC27L7CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L7CP requirements.
6.How does Aetrix verify that TLC27L7CP is sourced from the original manufacturer or authorized distributors?
All TLC27L7CP 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 TLC27L7CP meets industry standards.
7.What is the process for return or replacement of TLC27L7CP?
All TLC27L7CP units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L7CP, 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 TLC27L7CP part is unused and in its original packaging.
Return procedure for TLC27L7CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L7CP Tags
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