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Texas Instruments TLC274ID
- Part No.:
- TLC274ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC274ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,875
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Product details
Overview
TLC274ID from Texas Instruments is a precision quad operational amplifier optimized for single-supply operation, featuring 10 mV input offset voltage (max), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to GND - enabling accurate low-voltage signal conditioning in battery-powered sensor interfaces and industrial analog front-ends.
For engineers reviewing the TLC274ID datasheet, TLC274ID pinout, TLC274ID application, or TLC274ID equivalent, this page delivers verified electrical parameters, validated pin functions, confirmed operating conditions (4 V–16 V, –40°C to 85°C), and real-world implementation guidance for precision amplification in single-supply systems with ground-referenced inputs.
Technical Context
The TLC274ID uses a polysilicon-gate CMOS process to achieve ultra-high input impedance (>10¹² Ω), sub-60 pA typical input bias current, and low offset voltage drift (0.3 µV/°C). Its input stage supports common-mode voltage down to the negative rail, and its output drives to GND under load - critical for true single-supply functionality without level-shifting circuitry.
This device belongs to the TLC27xx family of precision BiFET-compatible op-amps; it delivers slew rate of 0.5 V/µs and unity-gain bandwidth of 4.5 MHz while maintaining low power consumption (6.4 mA max supply current at 25°C), making it suitable for cost-sensitive, medium-speed precision applications where bipolar or JFET op-amps were previously required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max (TLC274I grade, full –40°C to +85°C range) - sets baseline DC error in precision gain stages and sensor amplifiers. |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - enables low-noise amplification of microvolt-level signals from thermocouples or strain gauges. |
| Supply Voltage Range | 4 V to 16 V - supports direct interface with 5 V and 12 V industrial rails and battery-backed systems without regulation. |
| Common-Mode Input Range | Extends to GND (–0.1 V min at VDD = 5 V) - allows direct sensing of ground-referenced transducer outputs. |
| Output Swing | Drives to GND (≤50 mV low-level output at 25°C) - eliminates need for negative supply in single-ended output configurations. |
| Supply Current (quad) | 6.4 mA max at 25°C - balances precision performance with moderate power budget for multi-channel analog signal chains. |
| Unity-Gain Bandwidth | 4.5 MHz - supports stable closed-loop operation up to ~100 kHz with gain ≥10, suitable for anti-aliasing and active filtering. |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 6 mm body size, surface-mount, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output - drives external load or next-stage input; capable of sourcing/sinking ±30 mA. |
| 1IN– | Input | Inverting input for channel 1 - forms feedback node in inverting configurations; high-impedance (≥10¹² Ω). |
| 1IN+ | Input | Noninverting input for channel 1 - accepts ground-referenced or biased sensor signals directly. |
| VDD | Power Supply | Positive supply rail (4–16 V); all four amplifiers share this connection - requires local 0.1 µF bypass to GND. |
| 2IN+ | Input | Noninverting input for channel 2 - identical electrical characteristics to 1IN+; supports independent dual-sensor buffering. |
| 2IN– | Input | Inverting input for channel 2 - used in differential or inverting gain stages; matched offset and bias with other inputs. |
| 2OUT | Output | Amplifier channel 2 output - electrically isolated from 1OUT; enables simultaneous dual-channel signal processing. |
| 3OUT | Output | Amplifier channel 3 output - fully independent; allows three-stage cascaded gain or parallel signal paths. |
| 3IN– | Input | Inverting input for channel 3 - shares same input stage architecture and noise performance as other channels. |
| 3IN+ | Input | Noninverting input for channel 3 - supports rail-to-rail common-mode operation; compatible with single-supply reference dividers. |
| GND | Power Supply | Negative supply / system ground - return path for all four amplifiers; must be low-impedance and star-connected. |
| 4IN+ | Input | Noninverting input for channel 4 - enables fourth independent analog channel; usable for monitoring or redundancy. |
| 4IN– | Input | Inverting input for channel 4 - matches input offset and bias specs across all four channels per datasheet testing. |
| 4OUT | Output | Amplifier channel 4 output - completes quad configuration; supports 4-channel data acquisition or multi-loop control. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing to GND | Enables true single-supply operation without negative rail - reduces BOM count and PCB area in portable instrumentation. |
| Input common-mode range includes negative rail | Permits direct connection of ground-referenced sensors (e.g., RTDs, bridge transducers) without input biasing networks. |
| Ultra-low input bias current (≤60 pA typ) | Minimizes voltage error across high-impedance sources (e.g., pH electrodes, piezoelectric sensors) and enables MΩ-range feedback resistors. |
| ESD-protection circuitry | Rated per JEDEC JS-001 - improves robustness during handling and board assembly without requiring external protection diodes. |
| Latch-up immunity | Guaranteed per JEDEC 78 - prevents destructive latch-up under overvoltage or ESD stress, enhancing field reliability. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level mV outputs from load cells and pressure transducers in factory-floor PLC I/O modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset trimming capability and stable DC response. Use Value: 10 mV max input offset and 0.3 µV/°C drift ensure <±0.1% full-scale error over temperature without recalibration. |
Use Scenario: Front-end amplification of ECG electrode signals in handheld patient monitors powered by 3.7 V Li-ion batteries. IC Role / Device Role / Timing Role: Single-supply, low-noise, rail-to-rail op-amp for biopotential signal buffering and filtering. Use Value: 10.8 nV/√Hz noise and GND-referenced output enable clean 0.05–150 Hz bandpass response without AC coupling. |
| Automotive Cabin Environment Sensing | Test & Measurement Equipment |
Use Scenario: Signal conditioning for cabin temperature/humidity sensors in automotive HVAC control units operating from 5 V bus. IC Role / Device Role / Timing Role: Quad-channel buffer and gain stage supporting multiple sensor types on shared 5 V rail. Use Value: Four matched amplifiers in one SOIC-14 reduce layout area vs discrete solutions and improve thermal tracking. |
Use Scenario: Active filtering and gain stages in benchtop multimeters and data loggers requiring stable DC accuracy. IC Role / Device Role / Timing Role: Precision op-amp for programmable gain instrumentation amplifiers and reference buffers. Use Value: High CMRR (≥65 dB) and PSRR (≥65 dB) suppress supply ripple and common-mode interference in noisy lab environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower input offset (2 mV max), higher quiescent current (550 µA per amp), rail-to-rail I/O, 6 MHz GBW. | Better DC accuracy but higher power; not rated for –40°C to +85°C extended temp range (only –40°C to +125°C industrial). | Select TLV2464IDR when ultra-low offset and rail-to-rail input are required, and power budget allows >2× higher supply current. |
| OPA4340UA | Lower noise (8 nV/√Hz), higher slew rate (6 V/µs), unity-gain stable, 5.5 MHz GBW, higher cost. | Superior dynamic performance for higher-frequency sensor signals; not optimized for ultra-low bias current (<1 pA vs 60 pA). | Choose OPA4340UA for demanding audio or fast transient applications where noise and speed outweigh cost and bias current needs. |
Compared with TLV2464IDR and OPA4340UA, the TLC274ID offers the best balance of low-cost precision, proven industrial temperature reliability, and single-supply usability - especially where sub-60 pA bias current and GND-swing output are essential for high-impedance, low-voltage sensor interfacing.
Availability
TLC274ID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, automotive cabin environment sensing, and test & measurement equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC274ID 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-amp design and manufacturing.
The TLC27xx family was engineered to deliver BiFET-level precision and speed using CMOS process technology - targeting cost-sensitive, single-supply industrial, medical, and automotive signal-conditioning applications.
FAQ
What is the maximum operating temperature range for the TLC274ID?
The TLC274ID is specified for operation from –40°C to +85°C (I-suffix grade), with guaranteed performance across this full industrial temperature range - including input offset voltage ≤13 mV, supply current ≤8 mA, and output swing to GND maintained at extremes.
Does the TLC274ID support true single-supply operation with ground-referenced inputs?
Yes - the TLC274ID features a common-mode input voltage range extending to the negative rail (GND), and its output swings to within 50 mV of GND. This enables direct interface with ground-referenced sensors like RTDs and bridge circuits without level-shifting components.
What is the typical input bias current of the TLC274ID, and why does it matter?
The TLC274ID has a typical input bias current of 10–60 pA at 25°C. This ultra-low value minimizes voltage error across high-impedance sources (e.g., pH probes, photodiode transimpedance feedback), allowing use of MΩ-range resistors without significant DC offset degradation.
Can unused amplifiers in the TLC274ID be left unconnected?
No - unused amplifiers in the TLC274ID must be configured as grounded unity-gain followers (noninverting input tied to GND, output connected to inverting input) to prevent oscillation or increased supply current due to floating inputs.
Is the TLC274ID pin-compatible with other quad op-amps in SOIC-14 packages?
The TLC274ID uses standard SOIC-14 pinout per JEDEC MS-012, matching industry-standard quad op-amp layouts. However, electrical behavior (e.g., input stage topology, bias current, output drive) differs from bipolar or rail-to-rail I/O devices - functional replacement requires validation of signal chain requirements.
TLC274ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
TLC274ID FAQ
1.How can I place an order for TLC274ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274ID 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 TLC274ID reliable?
The price and inventory of TLC274ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274ID is usually 5 days.
3.What payment methods are accepted for TLC274ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274ID?
TLC274ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274ID 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 TLC274ID?
For technical support, including TLC274ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274ID requirements.
6.How does Aetrix verify that TLC274ID is sourced from the original manufacturer or authorized distributors?
All TLC274ID 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 TLC274ID meets industry standards.
7.What is the process for return or replacement of TLC274ID?
All TLC274ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC274ID, 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 TLC274ID part is unused and in its original packaging.
Return procedure for TLC274ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC274ID Tags
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