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Texas Instruments TLC274BIDR
- Part No.:
- TLC274BIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC274BIDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,283
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Product details
Overview
TLC274BIDR from Texas Instruments is a precision quad CMOS operational amplifier optimized for single-supply operation, featuring 2000 µV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to GND. It operates from 4 V to 16 V across –40°C to 85°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/µs slew rate - enabling accurate signal conditioning in low-power sensor front-ends and industrial analog interfaces.
For engineers reviewing the TLC274BIDR datasheet, TLC274BIDR pinout, TLC274BIDR application, or TLC274BIDR equivalent, key selection criteria include its guaranteed 2 mV initial offset (B-grade), ultra-low input bias current (<60 pA), wide common-mode input range extending below GND, and SOIC-14 package compatibility with legacy BiFET upgrade paths.
Technical Context
The TLC274BIDR uses a polysilicon-gate CMOS process to achieve high input impedance (>10¹² Ω), low temperature drift (0.3 µV/°C), and latch-up immunity. Its input stage supports single-supply operation with common-mode voltage range from –0.1 V to VDD–1.5 V, while the output stage drives loads down to GND with ±30 mA output current capability per channel.
Designed as a drop-in upgrade for legacy BiFET op-amps, it combines BiFET-like speed (21 V/µs large-signal slew) with CMOS power efficiency (6.4 mA typical supply current at 5 V), making it suitable for battery-powered instrumentation where precision, noise, and supply flexibility are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input offset voltage | 2000 µV max at 25°C - defines worst-case DC error in precision gain stages without trimming |
| Input bias current | 60 pA max at 70°C - enables use with >1 MΩ source impedances without significant error |
| Unity-gain bandwidth | 4.5 MHz - supports stable closed-loop operation up to ~300 kHz with moderate capacitive loads |
| Slew rate | 0.5 V/µs (small-signal), 21 V/µs (large-signal) - determines maximum undistorted output swing rate |
| Supply voltage range | 4 V to 16 V - compatible with 5 V and 12 V industrial rails; excludes 3 V operation (C-suffix only) |
| Common-mode input range | –0.1 V to VDD–1.5 V - allows direct sensing of signals referenced to GND in single-supply systems |
| Output voltage swing | 0 V to VDD–1.5 V (sourcing), 0 V to VDD–1.0 V (sinking) - ensures full dynamic range near negative rail |
Pinout & Package
Package: SOIC-14 (D package), 8.65 mm × 6 mm body, surface-mount, JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output; capable of sourcing/sinking ±30 mA |
| 1IN– | Input | Inverting input for channel 1; high-impedance node sensitive to PCB leakage |
| 1IN+ | Input | Noninverting input for channel 1; same electrical characteristics as 1IN– |
| VDD | Power | Positive supply rail (4–16 V); must be bypassed with ≥0.1 µF ceramic capacitor |
| 2IN+ | Input | Noninverting input for channel 2; electrically identical to other inputs |
| 2IN– | Input | Inverting input for channel 2; shares same bias current and offset specs |
| 2OUT | Output | Amplifier channel 2 output; independent of other channels |
| 3OUT | Output | Amplifier channel 3 output; fully isolated performance per channel |
| 3IN– | Input | Inverting input for channel 3; validated for operation down to –0.1 V |
| 3IN+ | Input | Noninverting input for channel 3; supports rail-to-rail common-mode range |
| GND | Power | Negative supply or system ground; return path for all four amplifiers |
| 4IN+ | Input | Noninverting input for channel 4; matches input impedance and noise specs |
| 4IN– | Input | Inverting input for channel 4; designed for low-phase-shift feedback networks |
| 4OUT | Output | Amplifier channel 4 output; specified for 10 kΩ load and 20 pF capacitance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives to GND and within 1.0–1.5 V of VDD - eliminates need for negative supply in sensor buffers |
| Ultra-low input bias current | <60 pA max at 70°C - preserves accuracy in high-impedance pH, thermocouple, and photodiode circuits |
| Low input voltage noise | 10.8 nV/√Hz at 1 kHz - critical for low-level signal amplification without adding measurable noise floor |
| Single-supply optimized architecture | Common-mode input extends below GND (–0.1 V) - enables true ground-referenced differential measurement |
| Latch-up immunity | Designed-in protection per JEDEC JESD78 - prevents catastrophic failure during overvoltage transients |
Applications
| Strain Gauge Signal Conditioning | Industrial Temperature Transmitter |
|---|---|
|
Use Scenario: Amplifying mV-level Wheatstone bridge outputs from metal foil strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 2000 µV max VIO and 0.3 µV/°C drift ensure <±0.1% full-scale error over –40°C to 85°C without calibration. |
Use Scenario: Converting RTD or thermistor resistance changes into 4–20 mA loop currents for PLC analog inputs. IC Role / Device Role / Timing Role: Low-drift voltage reference buffer and I/V conversion amplifier in two-wire transmitter design. Use Value: Sub-60 pA input bias avoids self-heating errors in high-resistance thermistor networks (>100 kΩ). |
| Portable Medical ECG Front-End | Automotive Battery Voltage Monitor |
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld ECG devices. IC Role / Device Role / Timing Role: First-stage AC-coupled amplifier with high-pass filtering and gain before ADC digitization. Use Value: 10.8 nV/√Hz noise and >10¹² Ω input impedance minimize signal degradation in high-Z electrode interfaces. |
Use Scenario: Monitoring 12 V lead-acid or 48 V Li-ion battery pack voltage with ±10 mV accuracy over temperature. IC Role / Device Role / Timing Role: Precision resistive divider buffer and comparator reference generator for state-of-charge estimation. Use Value: Guaranteed 2 mV VIO and 4–16 V supply range support direct connection to automotive battery rails without level-shifting. |
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 |
|---|---|---|---|
| TLV274IDR | Lower VIO (2 mV typ), lower supply current (1.8 mA), but reduced bandwidth (3 MHz) and noise (17 nV/√Hz) | Better for ultra-low-power battery monitoring; less suitable for high-fidelity audio or fast sensor sampling | Choose TLV274IDR when supply current <2 mA is mandatory and 3 MHz GBW suffices |
| OPA4277UA | Bipolar input, 10 µV VIO max, 0.1 µV/°C drift, higher supply current (1.5 mA per amp), no rail-to-rail output | Superior DC precision for lab-grade instrumentation; requires dual supplies or level-shifting for single-rail use | Choose OPA4277UA when sub-20 µV offset and <0.2 µV/°C drift outweigh rail-to-rail output needs |
Compared with TLV274IDR, TLC274BIDR offers higher slew rate and lower noise for dynamic signal chains; compared with OPA4277UA, it trades ultimate DC precision for single-supply simplicity and lower power - making TLC274BIDR optimal for cost-sensitive industrial and automotive analog front-ends where GND-referenced operation is essential.
Availability
TLC274BIDR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive battery monitors, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC274BIDR 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.
The TLC27xx family was engineered to replace legacy BiFET amplifiers in cost-sensitive, single-supply industrial and automotive systems - delivering BiFET speed with CMOS input advantages and robust SOIC packaging.
FAQ
What is the maximum operating temperature range for the TLC274BIDR?
The TLC274BIDR is rated for operation from –40°C to +85°C, matching the I-suffix specification. This range is validated per TI's SLOS092E datasheet, with all electrical characteristics (including input offset voltage, bias current, and CMRR) guaranteed across this full interval - making TLC274BIDR suitable for under-hood automotive and industrial control environments.
Does the TLC274BIDR support true rail-to-rail input operation?
No - the TLC274BIDR supports rail-to-rail *output* swing (down to GND and near VDD), but its common-mode input voltage range extends only to –0.1 V (below GND) and up to VDD–1.5 V. It does not accept inputs at the positive rail. This behavior is confirmed in Section 4.2 and Table 4-3 of the official datasheet for VDD = 5 V and 10 V conditions.
Can the TLC274BIDR operate from a 3-V supply?
No - the TLC274BIDR requires a minimum 4-V supply, as specified in the Recommended Operating Conditions table for I-suffix devices. Only the C-suffix variants (e.g., TLC274C) are rated for 3-V operation. Using 3 V on TLC274BIDR may result in undefined behavior, reduced output swing, or failure to meet AC/DC specifications.
What is the typical input bias current of the TLC274BIDR at room temperature?
The typical input bias current of the TLC274BIDR is 10 pA at 25°C, with a maximum of 60 pA across the full –40°C to +85°C range. This value is documented in Tables 4-3 through 4-6 of the SLOS092E datasheet under "IIB" (Input Bias Current) test conditions, confirming suitability for high-impedance sensor interfacing without significant loading error.
How does the TLC274BIDR differ from the TLC274CDR in terms of precision grade?
The TLC274BIDR is the "B-grade" variant with a maximum input offset voltage of 2000 µV at 25°C and 3000 µV over temperature, whereas the TLC274CDR is the "C-grade" with 10 mV max VIO. Both share identical SOIC-14 packaging and pinout, but TLC274BIDR provides tighter DC accuracy for mid-precision applications where cost and performance are balanced - unlike the higher-cost TLC279 series (900 µV max).
TLC274BIDR 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:
- 340 µV
- 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
TLC274BIDR FAQ
1.How can I place an order for TLC274BIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274BIDR 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 TLC274BIDR reliable?
The price and inventory of TLC274BIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274BIDR is usually 5 days.
3.What payment methods are accepted for TLC274BIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274BIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274BIDR?
TLC274BIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274BIDR 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 TLC274BIDR?
For technical support, including TLC274BIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274BIDR requirements.
6.How does Aetrix verify that TLC274BIDR is sourced from the original manufacturer or authorized distributors?
All TLC274BIDR 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 TLC274BIDR meets industry standards.
7.What is the process for return or replacement of TLC274BIDR?
All TLC274BIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC274BIDR, 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 TLC274BIDR part is unused and in its original packaging.
Return procedure for TLC274BIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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