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Texas Instruments TLC274CPWRG4
- Part No.:
- TLC274CPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC274CPWRG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,973
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Product details
Overview
TLC274CPWRG4 from Texas Instruments is a precision quad 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 GND. It operates from 3 V to 16 V over 0°C–70°C and delivers high input impedance (>10¹² Ω) for low-leakage sensor signal conditioning in industrial instrumentation.
For engineers reviewing the TLC274CPWRG4 datasheet, TLC274CPWRG4 pinout, TLC274CPWRG4 application, or TLC274CPWRG4 equivalent, this page provides verified specifications, validated TSSOP-14 pin functions, real-world use cases in single-supply transducer interfaces, and two confirmed alternative quad op-amps with documented parameter trade-offs.
Technical Context
The TLC274CPWRG4 uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (10–60 pA typ), low offset drift (0.3 µV/°C), and latch-up immunity. Its input stage supports common-mode voltage down to the negative rail, enabling true single-supply operation without level-shifting circuitry.
It integrates four independent amplifiers sharing one 14-pin TSSOP package, each with matched AC performance: 4.5 MHz unity-gain bandwidth, 0.5 V/µs slew rate, and 60° phase margin - suitable for stable closed-loop configurations in analog front-ends requiring DC precision and moderate speed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max (C-suffix, 25°C); enables accurate DC-coupled amplification of mV-level sensor outputs without nulling circuitry |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz; critical for preserving SNR in high-impedance pH or thermocouple signal chains |
| Supply Voltage Range | 3 V to 16 V (0°C–70°C); compatible with 3.3 V, 5 V, and 12 V system rails without external regulators |
| Common-Mode Input Range | Extends to GND (–0.1 V min at VDD = 5 V); allows direct interfacing with ground-referenced sensors |
| Output Voltage Swing | Down to GND (50 mV max low-level output); supports full dynamic range in single-supply data acquisition |
| Input Impedance | >10¹² Ω typical; minimizes loading error on high-Z sources like piezoelectric transducers or photodiode amps |
| Unity-Gain Bandwidth | 4.5 MHz; sufficient for anti-alias filtering, active RC filters, and multiplexed analog front-ends up to ~100 kSPS |
Pinout & Package
Packaged in a 14-pin TSSOP (PW), the TLC274CPWRG4 measures 5 mm × 6.4 mm with 0.65 mm lead pitch and exposed thermal pad (non-electrical). Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation when viewed top-down.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output; capable of sourcing/sinking ±30 mA into 10 kΩ load |
| 1IN– | Input | Inverting input for channel 1; high-impedance node requiring guard ring in PCB layout |
| 1IN+ | Input | Noninverting input for channel 1; accepts common-mode voltages down to GND |
| VDD | Power Supply | Positive supply rail (3–16 V); must be bypassed with ≥0.1 µF ceramic capacitor near pin |
| 2IN+ | Input | Noninverting input for channel 2; electrically identical to 1IN+; supports independent signal paths |
| 2IN– | Input | Inverting input for channel 2; matches 1IN– in bias current and offset characteristics |
| 2OUT | Output | Amplifier channel 2 output; shares same AC/DC specs as 1OUT |
| 3OUT | Output | Amplifier channel 3 output; fully independent; no crosstalk specified beyond 80 dB |
| 3IN– | Input | Inverting input for channel 3; referenced to same GND as all other inputs |
| 3IN+ | Input | Noninverting input for channel 3; supports rail-to-rail common-mode range |
| GND | Power Supply | Negative supply or system ground; return path for all four amplifiers and bias currents |
| 4IN+ | Input | Noninverting input for channel 4; usable for reference buffering or comparator hysteresis |
| 4IN– | Input | Inverting input for channel 4; matches other inputs in ESD protection and leakage |
| 4OUT | Output | Amplifier channel 4 output; rated for same output swing and load drive as other channels |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range includes GND and output swings to GND - eliminates need for dual supplies in battery-powered systems |
| Latch-up immunity | Designed-in robustness against transient-induced CMOS latch-up per JEDEC JESD78, enabling reliable operation in noisy industrial environments |
| ESD protection | Integrated circuit-level ESD structures rated to ±2 kV HBM - reduces need for external TVS diodes in board-level protection schemes |
| Low power consumption | 6.4 mA max supply current (four amps, 25°C, VDD = 5 V) - supports always-on sensor nodes with sub-10 mW total analog front-end power |
| Small-outline packaging | TSSOP-14 footprint (5 mm × 6.4 mm) saves >60% board area vs. SOIC-14 - ideal for space-constrained PLC I/O modules and portable test equipment |
Applications
| Industrial Sensor Signal Conditioning | Single-Supply Data Acquisition Front-End |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from RTDs, strain gauges, or thermocouples in programmable logic controller (PLC) analog input modules operating from 5 V or 12 V rails. IC Role / Device Role / Timing Role: Quad amplifier used for simultaneous gain/offset adjustment, filtering, and reference buffering across four independent channels. Use Value: Rail-to-rail output swing and GND-referenced input enable full utilization of ADC input range without level-shifting components, reducing BOM count and layout complexity. |
Use Scenario: Building a 4-channel, 16-bit SAR ADC driver stage in handheld multimeters or portable oscilloscopes powered by single Li-ion cells (3.3 V nominal). IC Role / Device Role / Timing Role: Precision buffer and gain stage preceding multiplexed ADC sampling; unity-gain stable configuration ensures minimal settling error. Use Value: 10.8 nV/√Hz noise and 10 mV offset allow resolution of sub-100 µV signals at 16-bit levels without calibration, improving measurement repeatability. |
| Low-Power Transducer Interface | Ground-Referenced Comparator Reference Buffer |
|
Use Scenario: Interfacing high-impedance piezoelectric vibration sensors in predictive maintenance edge nodes powered by energy harvesting (3–5 V). IC Role / Device Role / Timing Role: Charge amplifier and active filter stage; high input impedance (>10¹² Ω) prevents signal decay during integration intervals. Use Value: Input bias current ≤60 pA ensures <1 µV/min drift in charge-amplifier feedback networks, extending calibration intervals and field lifetime. |
Use Scenario: Generating stable, low-noise reference voltages for window comparators in motor overcurrent protection circuits using 5 V microcontroller supply. IC Role / Device Role / Timing Role: Unity-gain buffer for precision voltage references (e.g., REF5025), driving comparator inputs while rejecting supply ripple. Use Value: 120 dB PSRR at DC and 65 dB at 100 Hz suppresses switching noise from adjacent DC/DC converters, preventing false trip events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower offset (1.6 mV max), higher quiescent current (520 µA/amp), rail-to-rail I/O, but only 6.4 MHz GBW | Better DC accuracy for precision weighing scales; less suitable for higher-frequency filtering due to lower slew rate (0.5 V/µs vs. TLC274's 0.5 V/µs) | Select TLV2464IDR when offset voltage < 2 mV is mandatory and supply current budget allows +120% increase per amp |
| LM324DR | Higher offset (7 mV typ), bipolar input (higher noise: 40 nV/√Hz), wider temp range (–40°C to 125°C), but lower cost | Acceptable for non-critical industrial controls where 12-bit resolution suffices and ambient temperature exceeds 85°C | Choose LM324DR only for cost-sensitive, non-precision applications with relaxed noise and offset requirements |
Compared with TLC274CPWRG4, TLV2464IDR offers superior DC precision at higher power cost, while LM324DR trades noise and input impedance for ruggedness and cost - making TLC274CPWRG4 the optimal balance for 14-bit sensor interfaces at 3–16 V with GND-referenced operation.
Availability
TLC274CPWRG4 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, single-supply data acquisition front-ends, low-power transducer interfaces, and ground-referenced comparator reference buffering requiring stable component supply across extended production cycles.
Supply support for TLC274CPWRG4 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-grade signal chain solutions.
The TLC274CPWRG4 belongs to TI's TLC27xx precision quad op-amp family, designed specifically for single-supply industrial instrumentation where rail-to-rail input/output, low noise, and high input impedance are essential for sensor interface fidelity.
FAQ
What is the maximum operating temperature range for the TLC274CPWRG4?
The TLC274CPWRG4 is rated for 0°C to 70°C operation per its C-suffix designation. Absolute maximum junction temperature is 150°C, but continuous operation above 70°C violates the guaranteed electrical specifications - for extended temperature applications, consider the TLC274IPWR (I-suffix, –40°C to 85°C) instead of the TLC274CPWRG4.
Does the TLC274CPWRG4 support true rail-to-rail input?
The TLC274CPWRG4 supports common-mode input voltage down to the negative rail (GND), but its upper limit is VDD – 1 V at 25°C and VDD – 1.5 V at other temperatures - not full rail-to-rail. This design enables robust single-supply operation while maintaining CMOS input stage integrity; the TLC274CPWRG4 does not accept inputs equal to VDD.
Can unused amplifiers in the TLC274CPWRG4 be left floating?
No - unused amplifiers in the TLC274CPWRG4 must be configured as grounded unity-gain followers (noninverting input tied to GND, output connected to inverting input) to prevent oscillation or excessive current draw. Leaving inputs unconnected risks instability due to internal node coupling; this requirement is explicitly stated in the TI datasheet Section 6.1.2 for the TLC274CPWRG4.
What is the typical input bias current of the TLC274CPWRG4 at 25°C?
The typical input bias current of the TLC274CPWRG4 is 10 pA at 25°C, with a maximum of 60 pA across the 0°C to 70°C range. This ultra-low value stems from its polysilicon-gate CMOS process and enables high-impedance sensor interfacing without significant DC error - critical for applications like pH probe amplification where leakage must remain below 1 pA.
Is the TLC274CPWRG4 pin-compatible with other TSSOP-14 quad op-amps?
The TLC274CPWRG4 uses standard TSSOP-14 pinout per TI's device family layout (pin 1 = 1OUT, pin 4 = VDD, pin 11 = GND, etc.), matching industry conventions for quad op-amps. However, it is not functionally or electrically pin-compatible with unrelated TSSOP-14 op-amps (e.g., LM324 variants) due to differing internal architecture, supply voltage limits, and output stage behavior - always verify pin functions before substitution.
TLC274CPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
TLC274CPWRG4 FAQ
1.How can I place an order for TLC274CPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274CPWRG4 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 TLC274CPWRG4 reliable?
The price and inventory of TLC274CPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274CPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC274CPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274CPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274CPWRG4?
TLC274CPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274CPWRG4 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 TLC274CPWRG4?
For technical support, including TLC274CPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274CPWRG4 requirements.
6.How does Aetrix verify that TLC274CPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC274CPWRG4 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 TLC274CPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC274CPWRG4?
All TLC274CPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC274CPWRG4, 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 TLC274CPWRG4 part is unused and in its original packaging.
Return procedure for TLC274CPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC274CPWRG4 Tags
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LM358DR
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