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Texas Instruments TLC274IPW
- Part No.:
- TLC274IPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC274IPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:262
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Product details
Overview
TLC274IPW 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, >10¹² Ω input impedance, and rail-to-rail output swing down to GND - enabling accurate low-level signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.
For engineers reviewing the TLC274IPW datasheet, TLC274IPW pinout, TLC274IPW application, or TLC274IPW equivalent, this page delivers verified electrical specs, TSSOP-14 package details, real-world use cases in single-supply instrumentation, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The TLC274IPW employs a polysilicon-gate CMOS process to achieve ultra-low input bias current (≤60 pA typ), high common-mode rejection (65–85 dB), and supply-voltage rejection (65–120 dB), supporting stable DC-coupled gain stages across wide temperature ranges. Its input stage extends below the negative rail, and output drives to GND under load - critical for 3V–16V single-rail systems.
Designed as a cost-effective BiFET/NFET replacement, it delivers 4.5 MHz unity-gain bandwidth and 0.5 V/μs slew rate at 5V supply, with built-in ESD protection and latch-up immunity. Four offset voltage grades (TLC274/TLC274A/TLC274B/TLC279) share identical pinout and package options, including PW (TSSOP-14).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max (TLC274I grade, 25°C) - sets baseline DC error in precision amplification chains |
| Input Bias Current | ≤60 pA typical (25°C) - enables high-impedance sensor interfacing without loading |
| Supply Voltage Range | 4 V to 16 V (–40°C to +85°C) - supports direct connection to 5V/12V industrial rails |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - ensures low-noise performance in audio and sensor signal paths |
| Unity-Gain Bandwidth | 4.5 MHz - sufficient for anti-aliasing filters and medium-speed signal conditioning |
| Slew Rate | 0.5 V/μs - limits large-signal transient response but adequate for DC–100 kHz applications |
| CMRR / PSRR | 65–85 dB CMRR, 65–120 dB PSRR - maintains accuracy in noisy industrial environments |
Pinout & Package
PW package is a 14-pin Thin Shrink Small Outline Package (TSSOP), 5 mm × 6.4 mm body size, lead pitch 0.65 mm, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output - drives external load or next-stage input |
| 1IN– | Input | Inverting input of channel 1 - sets feedback node for closed-loop gain configuration |
| 1IN+ | Input | Noninverting input of channel 1 - accepts reference or signal source with minimal loading |
| VDD | Power | Positive supply rail (4–16 V) - powers all four amplifiers; requires local 0.1 μF bypass |
| GND | Power | Negative supply or system ground - return path for all quiescent and output currents |
| 4OUT | Output | Amplifier channel 4 output - fully independent; unused channels must be configured as unity-gain followers |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Input common-mode range includes GND; output swings to GND - eliminates need for dual supplies in portable systems |
| Ultra-high input impedance | >10¹² Ω typical - preserves signal integrity when interfacing with high-Z sources like piezoelectric sensors or pH electrodes |
| Low input voltage noise | 10.8 nV/√Hz at 1 kHz - outperforms bipolar op-amps above 50 kΩ source impedances |
| ESD protection circuitry | Integrated protection on all pins - meets JEDEC JS-001 Class 2 (2 kV HBM) without external clamps |
| Latch-up immunity | Designed-in robustness against I/O overvoltage transients - prevents destructive latch-up during power sequencing |
Applications
| Industrial Sensor Signal Conditioning | Portable Instrumentation Amplifiers |
|---|---|
Use Scenario: Amplifying low-level mV-range outputs from RTDs, thermocouples, or strain gauges in PLC analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset trimming capability and rail-to-rail output drive into ADC reference buffers. Use Value: 10 mV max VIO and 0.3 µV/°C drift enable <±0.1% full-scale accuracy over –40°C to +85°C without recalibration. |
Use Scenario: Front-end amplification in handheld multimeters and battery-powered data loggers with 3–5 V supply rails. IC Role / Device Role / Timing Role: Single-supply op-amp providing gain, filtering, and level-shifting prior to SAR ADC sampling. Use Value: 4 V min supply and GND-referenced output allow direct interface with 3.3 V microcontrollers and low-voltage ADCs. |
| Medical Patient Monitoring Circuits | Automotive Cabin Environment Sensors |
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 guard-ring-compatible layout support. Use Value: ≤60 pA input bias current minimizes DC offset drift caused by skin-electrode interface impedance variations. |
Use Scenario: Signal conditioning for cabin temperature, humidity, and CO₂ sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Quad-channel analog front-end handling multiple sensor inputs with shared supply and layout efficiency. Use Value: Four independent amplifiers in one TSSOP-14 package reduce PCB area and BOM count versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IPW | Lower VIO (2.5 mV max), higher IQ (520 µA/amplifier), rail-to-rail I/O | Better DC accuracy but higher supply current - suited for low-power precision where 4.5 mA total IDD is acceptable | Select TLV2464IPW when sub-mV offset and RRO are required; accept 2× higher quiescent current vs TLC274IPW |
| 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 high-Z sensor use; lower cost for non-critical industrial controls | Choose LM324DR only for cost-sensitive, non-precision applications with source impedances <10 kΩ and no ESD risk |
Compared with TLV2464IPW and LM324DR, the TLC274IPW uniquely balances ultra-low input bias current (≤60 pA), integrated ESD protection, and 4–16 V single-supply flexibility - making it optimal for battery-constrained, high-impedance sensor nodes where reliability and low leakage are mandatory.
Availability
TLC274IPW is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable instrumentation amplifiers, medical patient monitoring circuits, and automotive cabin environment sensors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC274IPW 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 design and manufacturing excellence.
The TLC27xx family was engineered to replace legacy BiFET/NFET op-amps in cost-sensitive, single-supply industrial and instrumentation systems - delivering CMOS advantages (ultra-low IIB, high ZIN) without sacrificing speed or ruggedness.
FAQ
What is the maximum operating temperature range for the TLC274IPW?
The TLC274IPW is rated for operation from –40°C to +85°C (I-suffix grade). This extended industrial temperature range ensures reliable performance in demanding environments such as factory automation controllers and automotive cabin modules. The device maintains specified input offset voltage, CMRR, and supply current across this full range, with datasheet test conditions explicitly covering –40°C, 25°C, and +85°C points.
Does the TLC274IPW support true rail-to-rail input operation?
The TLC274IPW does not support full rail-to-rail input - its common-mode input voltage range extends to GND but stops at VDD – 1 V (at 25°C) or VDD – 1.5 V (over full temperature range). However, it does provide rail-to-rail output swing down to GND, which is essential for single-supply systems. For true RRI applications, consider TI's TLV2464IPW instead.
Can unused amplifiers in the TLC274IPW be left unconnected?
No - unused amplifiers in the TLC274IPW must be configured as unity-gain voltage followers with inputs tied to a valid common-mode voltage (e.g., VDD/2 via resistive divider or directly to GND if within VICR). Leaving inputs floating or unconfigured risks oscillation, increased supply current, or unpredictable output states due to internal node instability.
What is the typical supply current per amplifier in the TLC274IPW?
The TLC274IPW draws 2.24 mA typical total supply current for all four amplifiers at 25°C and 5 V supply - approximately 0.56 mA per amplifier. This value increases to 6.4 mA max at 70°C and 5 V, and up to 8 mA max at 85°C and 10 V. These figures include quiescent current only; output loading adds additional current proportional to load current and voltage swing.
Is the TLC274IPW pin-compatible with other TSSOP-14 quad op-amps?
Yes - the TLC274IPW shares the industry-standard TSSOP-14 pinout defined in TI's SLOS092E datasheet, matching pin functions (e.g., 1OUT, 1IN–, 1IN+, VDD, GND, 4IN–, 4OUT) with other TI quad op-amps like TLV2464IPW and OPA4340IPW. However, electrical characteristics (VIO, IIB, bandwidth) differ significantly, so functional substitution requires validation in the target circuit.
TLC274IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC274IPW FAQ
1.How can I place an order for TLC274IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274IPW 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 TLC274IPW reliable?
The price and inventory of TLC274IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274IPW is usually 5 days.
3.What payment methods are accepted for TLC274IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274IPW?
TLC274IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274IPW 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 TLC274IPW?
For technical support, including TLC274IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274IPW requirements.
6.How does Aetrix verify that TLC274IPW is sourced from the original manufacturer or authorized distributors?
All TLC274IPW 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 TLC274IPW meets industry standards.
7.What is the process for return or replacement of TLC274IPW?
All TLC274IPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC274IPW, 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 TLC274IPW part is unused and in its original packaging.
Return procedure for TLC274IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC274IPW 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
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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