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Texas Instruments TLC274CPWR
- Part No.:
- TLC274CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC274CPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,895
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Product details
Overview
TLC274CPWR from Texas Instruments is a precision quad CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (C-suffix), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C to 70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/μs slew rate - ideal for sensor signal conditioning in industrial instrumentation.
For engineers reviewing the TLC274CPWR datasheet, TLC274CPWR pinout, TLC274CPWR application, or TLC274CPWR equivalent, key selection criteria include its low input bias current (<60 pA), high input impedance (>10¹² Ω), wide common-mode input range extending below ground, and TSSOP-14 package compatibility with space-constrained PCB layouts.
Technical Context
The TLC274CPWR uses a polysilicon-gate CMOS process to achieve low input offset voltage drift (0.3 µV/°C) and negligible long-term drift (0.1 µV/month), enabling stable DC-coupled amplification in precision measurement systems. Its input stage supports common-mode voltages from –0.1 V to VDD–1 V, and output stage drives loads to within 50 mV of GND and 0.05 V of VDD under 10 kΩ load.
This device integrates ESD protection circuitry and latch-up immunity, allowing robust operation in noisy industrial environments. Unlike bipolar op-amps, it avoids input bias current-induced errors in high-impedance transducer interfaces - critical for pH probes, thermocouple amplifiers, and photodiode front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max at 25°C - sets baseline DC error in precision gain stages; impacts accuracy in 12-bit+ data acquisition |
| Input Bias Current | <60 pA typical - enables use with >1 MΩ source impedances without significant voltage drop or drift |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop operation up to ~300 kHz with moderate gain (e.g., G = 15) |
| Slew Rate | 0.5 V/μs - limits full-power bandwidth to ~80 kHz at 10 Vpp output; sufficient for slow-varying sensor signals |
| Supply Voltage Range | 3 V to 16 V - compatible with single 5 V or 12 V rails; eliminates need for dual supplies in embedded systems |
| Common-Mode Input Range | Extends 0.1 V below GND - allows direct interfacing to ground-referenced sensors without level-shifting circuitry |
| Output Voltage Swing | Within 50 mV of GND and 50 mV of VDD - preserves dynamic range in low-voltage single-supply systems |
Pinout & Package
Packaged in a 14-pin TSSOP (PW), the TLC274CPWR measures 5 mm × 6.4 mm with 0.65 mm lead pitch, supporting automated SMT assembly and thermal performance suitable for industrial ambient temperatures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output; capable of sourcing/sinking ±30 mA into 10 kΩ load |
| 1IN–, 1IN+ | Input | Inverting/noninverting inputs for channel 1; high-impedance CMOS nodes requiring guard-ring layout |
| VDD | Power Supply | Positive supply rail (3–16 V); must be bypassed with 0.1 µF ceramic capacitor near pin |
| GND | Power Supply | Negative supply or system ground reference; shared return path for all four amplifiers |
| 2IN+, 2IN–, 2OUT | Input/Output | Channel 2 differential pair and output; electrically isolated but thermally coupled on die |
| 3IN+, 3IN–, 3OUT | Input/Output | Channel 3 differential pair and output; identical specs to channels 1 and 2 |
| 4IN+, 4IN–, 4OUT | Input/Output | Channel 4 differential pair and output; unused channels must be configured as unity-gain followers |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range includes GND and output swings to GND - eliminates level-shifters in 5 V systems |
| Low input voltage noise | 10.8 nV/√Hz at 1 kHz - minimizes added noise in high-gain, low-frequency sensor amplifiers (e.g., strain gauges) |
| High input impedance | >10¹² Ω - prevents loading of high-Z sources like piezoelectric sensors or electrochemical cells |
| ESD protection | Integrated circuitry per JEDEC JS-001 - withstands ≥2 kV HBM, reducing board-level protection component count |
| Latch-up immunity | Designed-in robustness against I/O stress events - ensures reliability in industrial control I/O modules |
Applications
| Industrial Sensor Signal Conditioning | Medical Instrumentation Front-End |
|---|---|
|
Use Scenario: Amplifying low-level outputs from RTDs, thermocouples, or bridge-based pressure sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset trimming capability and low drift over temperature. Use Value: 10 mV max VIO and 0.3 µV/°C drift enable <±0.1% full-scale error across 0–70°C without active calibration. |
Use Scenario: Biopotential signal amplification (ECG, EEG) where ultra-low input bias current prevents electrode polarization errors. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier input buffer with guarded layout support. Use Value: Sub-60 pA input bias current avoids DC offset buildup across high-impedance Ag/AgCl electrodes. |
| Automotive Cabin Environment Monitoring | Test & Measurement Equipment |
|
Use Scenario: CO₂, humidity, and VOC sensor signal processing in automotive HVAC control units operating from 5 V battery rail. IC Role / Device Role / Timing Role: Single-supply transimpedance and filtering stage for NDIR and electrochemical gas sensors. Use Value: Rail-to-rail output swing maximizes ADC utilization in 12-bit SAR converters powered from same 5 V rail. |
Use Scenario: Programmable gain amplifier (PGA) and reference buffer in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Quad-channel configurable gain block with channel-to-channel isolation for multi-signal capture. Use Value: Four matched amplifiers in one TSSOP-14 reduce board area by 60% vs discrete SOIC-8 solutions. |
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 |
|---|---|---|---|
| TLV2464IPW | Lower VIO (1.6 mV typ), higher quiescent current (520 µA/amplifier), rail-to-rail I/O | Better DC accuracy but higher power; unsuitable for battery-powered designs | Choose TLV2464IPW when sub-mV offset and RRO are required, and supply current is not constrained |
| LM324DR | Bipolar input, 3 mV VIO, 20 nA IIB, no ESD protection, wider temp range (–40°C to 125°C) | Higher input bias current limits use with high-Z sensors; lacks latch-up immunity | Choose LM324DR only for cost-sensitive, non-precision applications with low source impedance |
Compared with TLV2464IPW and LM324DR, the TLC274CPWR provides optimal balance of low input bias current, low noise, and single-supply usability - making it uniquely suited for high-impedance, low-power, industrial-grade sensor interfaces where long-term stability matters.
Availability
TLC274CPWR is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, medical instrumentation front-end design, and automotive cabin environment monitoring requiring stable component supply across extended product lifecycles.
Supply support for TLC274CPWR 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog ICs and broad industrial portfolio coverage.
The TLC27xx family was designed specifically for cost-effective, high-accuracy linear signal conditioning in single-supply systems - targeting upgrade paths from legacy bipolar op-amps while maintaining pin-compatible footprints across variants.
FAQ
What is the maximum operating temperature range for the TLC274CPWR?
The TLC274CPWR is rated for 0°C to 70°C ambient operation (C-suffix grade). Its absolute maximum junction temperature is 150°C, but sustained operation above 70°C requires derating supply current and verifying thermal dissipation in the final PCB layout. The TLC274CPWR does not support industrial or automotive temperature grades - those are covered by I-suffix (–40°C to 85°C) or Q1-grade variants not represented by this part number.
Does the TLC274CPWR support true rail-to-rail input operation?
The TLC274CPWR supports common-mode input voltage down to 0.1 V below GND and up to VDD–1 V at 25°C (VDD–1.5 V at other temperatures), so it is not a full rail-to-rail input device. However, its ability to accept inputs at or slightly below ground makes it highly effective for single-supply sensor interfaces where the negative rail equals GND - a key differentiator from standard bipolar op-amps.
Can unused amplifiers in the TLC274CPWR be left unconnected?
No - unused amplifiers in the TLC274CPWR must be configured as unity-gain voltage followers with inputs tied to a valid common-mode voltage (e.g., VDD/2 via resistor divider) to prevent oscillation or excessive current draw. Leaving inputs floating or shorting inputs to outputs without proper biasing violates recommended practice and may cause instability or increased supply current in the active channels.
What is the typical input capacitance of the TLC274CPWR?
The TLC274CPWR exhibits approximately 5 pF differential input capacitance per amplifier, as derived from small-signal AC response and layout parasitic modeling in TI's characterization reports. This value remains stable across temperature and supply voltage, supporting predictable frequency compensation in high-impedance filter and integrator circuits without additional guarding beyond standard PCB practices.
Is the TLC274CPWR pin-compatible with other TSSOP-14 quad op-amps?
The TLC274CPWR follows standard TSSOP-14 pinout for quad op-amps (dual-in-line functional mapping), but pin compatibility with other manufacturers' devices is not guaranteed due to differences in internal biasing, ESD structure, and output stage architecture. Always verify functional behavior and layout constraints - especially supply decoupling and input guarding - before substituting in an existing design.
TLC274CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 2.7mA (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-TSSOP
TLC274CPWR FAQ
1.How can I place an order for TLC274CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274CPWR 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 TLC274CPWR reliable?
The price and inventory of TLC274CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274CPWR is usually 5 days.
3.What payment methods are accepted for TLC274CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274CPWR?
TLC274CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274CPWR 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 TLC274CPWR?
For technical support, including TLC274CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274CPWR requirements.
6.How does Aetrix verify that TLC274CPWR is sourced from the original manufacturer or authorized distributors?
All TLC274CPWR 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 TLC274CPWR meets industry standards.
7.What is the process for return or replacement of TLC274CPWR?
All TLC274CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLC274CPWR, 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 TLC274CPWR part is unused and in its original packaging.
Return procedure for TLC274CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC274CPWR Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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