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Texas Instruments TLC274ACDR
- Part No.:
- TLC274ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC274ACDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:6,027
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Product details
Overview
TLC274ACDR from Texas Instruments is a precision quad operational amplifier optimized for single-supply operation, featuring 5 mV max input offset voltage (25°C), 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 - ideal for sensor signal conditioning in industrial instrumentation.
For engineers reviewing the TLC274ACDR datasheet, TLC274ACDR pinout, TLC274ACDR application, or TLC274ACDR equivalent, key selection considerations include its low input bias current (<60 pA), wide common-mode input range extending below ground, high CMRR (65–80 dB), and SOIC-14 packaging suitable for space-constrained analog front-ends.
Technical Context
The TLC274ACDR employs a polysilicon-gate CMOS process enabling ultra-high input impedance (>10¹² Ω) and low input bias current, making it suitable for high-impedance source interfacing such as piezoelectric sensors and photodiode transimpedance stages. Its input stage supports common-mode voltages down to –0.1 V (at VDD = 5 V), and output swings within 50 mV of GND under load.
Designed specifically for single-supply systems, the device avoids the need for dual rails while maintaining precision performance: input offset voltage drift is only 0.3 µV/°C (25°C to 70°C), and supply-voltage rejection exceeds 65 dB across operating conditions - critical for noisy shared-rail mixed-signal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | 5 mV max at 25°C - enables accurate DC-coupled amplification without frequent nulling in 12-bit+ data acquisition paths |
| Unity-gain bandwidth | 4.5 MHz - supports stable closed-loop gain ≥10 up to ~450 kHz with adequate phase margin (60°) |
| Slew rate | 21 V/µs at VIPP = 1 V - allows faithful reproduction of fast-rising sensor pulses or control signals |
| Input voltage noise | 10.8 nV/√Hz at 1 kHz - outperforms bipolar op-amps in high-Z, low-frequency applications like thermocouple amps |
| Common-mode input range | –0.1 V to 3.5 V (VDD = 5 V) - accommodates ground-referenced inputs in single-supply configurations |
| Supply current (quad) | 6.4 mA max at 25°C - balances precision and power efficiency for battery-backed or energy-conscious designs |
| CMRR | 65–80 dB - rejects interference from shared supply rails or adjacent digital switching noise |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 6 mm body, surface-mount, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output - drives loads up to ±30 mA; swings to within 50 mV of GND |
| 1IN–, 1IN+ | Input | Inverting/noninverting inputs for channel 1 - high-impedance (≥10¹² Ω), low-bias-current (≤60 pA) nodes |
| VDD | Power | Positive supply rail (3–16 V); all four amplifiers share this node |
| GND | Power | Negative supply/ground reference (0 V); output swings to within 50 mV of this rail |
| 2IN+, 2IN–, 2OUT 3IN+, 3IN–, 3OUT 4IN+, 4IN–, 4OUT |
Input/Output | Independent I/O sets for channels 2–4 - fully identical in specs and layout symmetry to channel 1 |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range extends below GND and output swings to GND - eliminates need for split supplies in portable or PLC analog modules |
| Low input bias current | <60 pA typical - enables use with MΩ-range feedback networks and high-impedance sources without significant error voltage |
| Rail-to-rail output capability | Drives to within 50 mV of GND and within 50 mV of VDD - maximizes dynamic range in 3.3 V or 5 V systems |
| ESD protection | Integrated circuitry per JEDEC JS-001 - withstands ≥2 kV HBM, reducing board-level transient protection requirements |
| Latch-up immunity | Designed-in robustness against I/O overvoltage-induced latch-up - improves reliability in industrial environments with EMI or hot-plug events |
Applications
| Industrial Sensor Interface | Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying low-level mV-range outputs from strain gauges and RTDs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset trimming and filtering; no timing function. Use Value: 5 mV max VIO and 0.3 µV/°C drift ensure <0.1% full-scale error over 0°C–70°C without calibration. |
Use Scenario: Front-end signal conditioning for ECG electrode amplifiers requiring high CMRR and low noise. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with guard-ring-compatible inputs. Use Value: 10.8 nV/√Hz noise and >10¹² Ω input impedance minimize thermal and bias-current noise in 50 kΩ+ electrode paths. |
| Automotive Cabin Sensors | Test & Measurement Equipment |
|
Use Scenario: Signal conditioning for humidity and cabin temperature sensors in 5 V automotive subsystems. IC Role / Device Role / Timing Role: Single-supply buffer and level-shifter between sensor output and ADC input. Use Value: Rail-to-rail output swing and –0.1 V to 3.5 V input range enable direct interface to 5 V SAR ADCs without level translation. |
Use Scenario: Active filter and gain stage in handheld multimeters and portable oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-drift, low-noise amplifier in autoranging and AC/DC conversion paths. Use Value: 4.5 MHz GBW and 21 V/µs slew rate support accurate 100 kHz sine-wave measurements with minimal distortion. |
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 |
|---|---|---|---|
| TLV2464IDR | Lower VIO (1.6 mV max), higher quiescent current (520 µA/amplifier), rail-to-rail I/O | Better DC accuracy but higher power; requires tighter thermal management in multi-channel designs | Prefer TLV2464IDR when sub-mV offset and RRO are mandatory, and supply current budget allows ≥2 mA total |
| OPA4188AIDR | Zero-drift architecture, 0.003 µV/°C drift, 15 nV/√Hz noise, 2 MHz GBW, higher cost | Superior long-term stability for metrology-grade instruments; lower bandwidth limits high-speed use | Choose OPA4188AIDR only when µV-level drift over temperature/time is critical, and 2 MHz GBW suffices |
Compared with TLV2464IDR and OPA4188AIDR, the TLC274ACDR offers the best balance of moderate precision (5 mV VIO), low noise (10.8 nV/√Hz), wide supply range (3–16 V), and cost-efficiency for industrial and test equipment where zero-drift isn't required.
Availability
TLC274ACDR is available at Aetrix Electronics and suitable for industrial sensor interface, medical instrumentation, automotive cabin sensing, and test & measurement equipment requiring stable component supply across extended production lifecycles.
Supply support for TLC274ACDR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLC27xx family was designed to provide cost-effective, high-input-impedance precision amplification for single-supply systems - bridging the performance gap between general-purpose and premium BiFET/NFET op-amps in industrial control and instrumentation.
FAQ
What is the maximum supply voltage rating for the TLC274ACDR?
The absolute maximum supply voltage for the TLC274ACDR is 18 V, but the recommended operating range is 3 V to 16 V across 0°C to 70°C ambient. Operation above 16 V risks exceeding internal junction limits and may degrade long-term reliability - always observe derating curves in the datasheet's Section 4.1 for elevated temperatures.
Does the TLC274ACDR support true rail-to-rail input operation?
No - the TLC274ACDR does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V (below GND) and up to VDD – 1 V at 25°C (e.g., 4 V max when VDD = 5 V). Input voltages beyond this range may cause phase reversal or increased offset error; design must ensure VIC stays within specified bounds per Section 4.2.
Can unused channels of the TLC274ACDR be left floating?
No - unused amplifiers in the TLC274ACDR must be configured as unity-gain buffers with inputs tied to a valid common-mode voltage (e.g., VDD/2 via resistive divider or grounded if within VIC range). Floating inputs risk oscillation, increased supply current, or unpredictable output states due to internal node instability.
What is the typical input bias current of the TLC274ACDR at 85°C?
The typical input bias current of the TLC274ACDR is ≤60 pA at 25°C and rises to ≤600 pA at 85°C (per Section 4.5, TLC274I grade). This remains exceptionally low versus bipolar op-amps, preserving accuracy in high-impedance circuits - but designers should verify worst-case bias current impact on offset in precision applications at max temperature.
Is the TLC274ACDR RoHS-compliant and lead-free?
Yes - the TLC274ACDR is manufactured in a RoHS-compliant, lead-free SOIC-14 package per TI's product change notification PCN SC190201. It meets JEDEC J-STD-020 moisture sensitivity level 3 and is compatible with standard Pb-free reflow profiles (peak 260°C).
TLC274ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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:
- 900 µV
- 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-SOIC
TLC274ACDR FAQ
1.How can I place an order for TLC274ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274ACDR 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 TLC274ACDR reliable?
The price and inventory of TLC274ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274ACDR is usually 5 days.
3.What payment methods are accepted for TLC274ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274ACDR?
TLC274ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274ACDR 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 TLC274ACDR?
For technical support, including TLC274ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274ACDR requirements.
6.How does Aetrix verify that TLC274ACDR is sourced from the original manufacturer or authorized distributors?
All TLC274ACDR 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 TLC274ACDR meets industry standards.
7.What is the process for return or replacement of TLC274ACDR?
All TLC274ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC274ACDR, 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 TLC274ACDR part is unused and in its original packaging.
Return procedure for TLC274ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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