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Texas Instruments TLC2274IDR
- Part No.:
- TLC2274IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:13,810
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Product details
Overview
TLC2274IDR from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for precision, low-noise signal conditioning in single- or split-supply systems. It delivers 2.2 MHz gain-bandwidth, 3.6 V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2274IDR datasheet, TLC2274IDR pinout, TLC2274IDR application, or TLC2274IDR equivalent, key selection criteria include its rail-to-rail output capability under ±5 V or 5 V supply, ultra-low input bias current for high-impedance transducer interfaces, guaranteed 950 µV max input offset voltage (A-grade), low power consumption (6 mA max quiescent current), and SOIC-14 packaging suitable for space-constrained industrial monitoring designs.
Technical Context
The TLC2274IDR uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise - distinct from bipolar or JFET-input op-amps. Its input stage operates down to the negative rail, supporting true single-supply operation with common-mode range extending to VDD−.
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin with 10 kΩ load and 100 pF capacitive load, ensuring robust stability in precision buffer and active filter configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±2.2 V to ±8 V (split) or 4.4 V to 16 V (single); enables flexible use in 3.3 V, 5 V, and ±5 V systems |
| Gain-Bandwidth Product | 2.25 MHz typical at ±5 V; supports stable closed-loop gain up to ~20 at 100 kHz |
| Slew Rate | 3.6 V/µs typical; allows clean 20 kHz sine-wave output at ±2.3 V swing without distortion |
| Input Offset Voltage | ≤950 µV max (TLC2274A grade); reduces DC error in precision instrumentation amplifiers |
| Input Bias Current | 1 pA typical; minimizes voltage drop across >100 MΩ source impedances (e.g., piezoelectric sensors) |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz; two times lower than legacy TLC27x, critical for low-level signal amplification |
| Common-Mode Input Range | Extends to VDD− (negative rail); supports ground-referenced inputs in single-supply configurations |
| Output Swing | Rail-to-rail; delivers >4.85 VPP into 200 µA load at 5 V supply, maximizing dynamic range into ADCs |
Pinout & Package
Package: SOIC-14 (3.91 mm × 8.65 mm), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplified output of Channel 1; rail-to-rail capable, drives loads ≥10 kΩ |
| 2 | IN1− | Inverting input of Channel 1; high-impedance node (10¹² Ω), sensitive to PCB leakage |
| 3 | IN1+ | Non-inverting input of Channel 1; common-mode range includes VDD− |
| 4 | VDD−/GND | Negative supply or ground reference; must be low-impedance for noise immunity |
| 5 | IN2+ | Non-inverting input of Channel 2; electrically isolated from Channel 1 inputs |
| 6 | IN2− | Inverting input of Channel 2; matched bias current to IN1− for common-mode rejection |
| 7 | OUT2 | Amplified output of Channel 2; independent output stage, no crosstalk below –80 dB |
| 8 | NC | No connection; not bonded, must remain unconnected and unstubbed |
| 9 | IN3+ | Non-inverting input of Channel 3; identical electrical specs to IN1+ and IN2+ |
| 10 | IN3− | Inverting input of Channel 3; supports differential input configuration with matched layout |
| 11 | VDD− | Negative supply terminal (split-supply mode); tied to Pin 4 in single-supply use |
| 12 | IN4+ | Non-inverting input of Channel 4; fully specified across temperature for multi-channel sync |
| 13 | IN4− | Inverting input of Channel 4; low input offset drift (2 µV/°C) ensures channel matching |
| 14 | OUT4 | Amplified output of Channel 4; same drive strength and noise performance as OUT1–OUT3 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range output (e.g., 0 V to 5 V), maximizing ADC utilization and dynamic range |
| 1-pA typical input bias current | Enables direct interface with high-impedance sources (e.g., pH electrodes, photodiodes) without guard rings |
| 9 nV/√Hz input voltage noise | Supports accurate amplification of µV-level signals in medical and sensor front-ends |
| Specified for single- and split-supply operation | Eliminates need for separate op-amp families - one BOM item covers 5 V, ±5 V, and 3.3 V designs |
| 2.2 MHz bandwidth with 3.6 V/µs slew rate | Meets settling and fidelity requirements for 12-bit ADC drivers up to 100 kSPS |
| 950 µV max input offset (A-grade) | Reduces calibration overhead in factory-trimmed systems like white goods motor control feedback |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level output from piezoelectric accelerometers or strain gauges in structural health monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving 16-bit SAR ADC reference range. Use Value: 1-pA input bias avoids signal loss across >1 GΩ sensor impedance; 9 nV/√Hz noise preserves SNR in sub-mV signal bands. | Use Scenario: Signal conditioning in portable gas detectors using electrochemical sensors. IC Role / Device Role / Timing Role: Low-power, rail-to-rail op-amp in 3.3 V single-supply front-end, buffering sensor output before ADC sampling. Use Value: 6 mA max supply current extends battery life; rail-to-rail output ensures full 0–3.3 V ADC code utilization. |
| White Goods Control | Analog Front-End for Data Acquisition |
Use Scenario: Motor current sensing and temperature feedback in refrigerator compressor control boards. IC Role / Device Role / Timing Role: Quad op-amp implementing current shunt amplification, NTC linearization, and reference buffering. Use Value: Guaranteed 950 µV max VIO (A-grade) reduces factory calibration steps; SOIC-14 simplifies layout in cost-sensitive consumer PCBs. | Use Scenario: Multi-channel analog signal conditioning prior to simultaneous-sampling ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Four matched, low-drift amplifiers providing buffered, filtered, and level-shifted inputs to ADC inputs. Use Value: Channel-to-channel offset matching (<1 mV) and 2 µV/°C drift enable high-accuracy multi-sensor correlation without per-channel trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2444IDR | Higher quiescent current (1.2 mA/channel vs. 1.5 mA/channel), 10 V/µs slew rate, but only 600 µV max VIO at 25°C | Better speed and offset for higher-bandwidth control loops; less suitable for ultra-low-power battery use | Select TLV2444IDR when >5 V/µs slew rate and <600 µV offset are required, accepting 2× higher supply current |
| OPA4340UA | Fully rail-to-rail I/O (vs. rail-to-rail output only), 5.5 MHz GBW, 16 V/µs slew, but 500 µA IIB and larger SOIC-14 footprint (4.9 × 8.65 mm) | Superior AC performance and input flexibility for active filters; unsuitable for pA-level sensor interfaces | Choose OPA4340UA for dual rail-to-rail I/O and higher-speed filtering; avoid where femtoampere bias current is mandatory |
Compared with TLV2444IDR and OPA4340UA, the TLC2274IDR provides the optimal balance of ultra-low input bias current (1 pA), rail-to-rail output, and low noise (9 nV/√Hz) for high-impedance, precision, low-power applications - making it uniquely suited for transducer signal chains where input loading and noise dominate design constraints.
Availability
TLC2274IDR is available at Aetrix Electronics and suitable for white goods motor control, handheld environmental monitors, and industrial data acquisition systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for TLC2274IDR 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 delivering analog and embedded processing solutions, with over 50 years of op-amp innovation and manufacturing excellence.
The TLC227x family was designed specifically for precision, low-noise, rail-to-rail output signal conditioning in cost-sensitive industrial and consumer systems - bridging performance between legacy CMOS and modern low-voltage precision amplifiers.
FAQ
What is the maximum supply voltage rating for the TLC2274IDR?
The TLC2274IDR has an absolute maximum supply voltage rating of ±8 V for split-supply operation or 16 V for single-supply operation. Operating beyond these limits risks permanent damage. Recommended operating range is ±2.2 V to ±8 V (split) or 4.4 V to 16 V (single), with full specifications guaranteed from ±5 V and 5 V supplies. Always observe derating guidelines for thermal reliability at elevated ambient temperatures.
Does the TLC2274IDR support true rail-to-rail input operation?
No, the TLC2274IDR features rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (VDD− or GND), but stops 1.5 V below the positive rail (VDD+ − 1.5 V) under standard conditions. This allows ground-referenced inputs in single-supply use but requires level-shifting for signals near VDD+. The TLC2274IDR is not a full rail-to-rail input/output device.
What is the difference between TLC2274IDR and TLC2274AIDR?
The TLC2274AIDR is the "A-grade" variant with tighter input offset voltage specification: ≤950 µV maximum at 25°C versus ≤2500 µV for the standard TLC2274IDR. Both share identical pinout, package (SOIC-14), bandwidth, noise, and supply ranges. The "A" suffix denotes enhanced DC precision for applications demanding lower initial error - such as calibrated sensor systems - without changes to circuit design or layout.
Can the TLC2274IDR drive capacitive loads directly?
The TLC2274IDR is unity-gain stable with up to 100 pF capacitive load when driving a 10 kΩ resistive load, as verified by 50° phase margin and 10 dB gain margin in the datasheet. For loads exceeding 100 pF (e.g., long cables or large ADC input capacitance), external isolation resistance (e.g., 100 Ω in series with output) is recommended to maintain stability and prevent peaking or oscillation. Always verify step response in final layout.
Is the TLC2274IDR suitable for automotive applications?
The TLC2274IDR is rated for commercial temperature range (0°C to 70°C). For automotive use, TI offers the Q-grade variant TLC2274MQDR, qualified to AEC-Q100 Grade 2 (–40°C to +105°C) with enhanced ESD robustness (±2000 V HBM). The TLC2274IDR itself is not automotive-qualified and lacks the extended temperature testing, failure analysis, and traceability required for under-hood or safety-critical vehicle systems.
TLC2274IDR 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:
- Rail-to-Rail
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 4.8mA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274IDR FAQ
1.How can I place an order for TLC2274IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274IDR 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 TLC2274IDR reliable?
The price and inventory of TLC2274IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274IDR is usually 5 days.
3.What payment methods are accepted for TLC2274IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274IDR?
TLC2274IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274IDR 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 TLC2274IDR?
For technical support, including TLC2274IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274IDR requirements.
6.How does Aetrix verify that TLC2274IDR is sourced from the original manufacturer or authorized distributors?
All TLC2274IDR 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 TLC2274IDR meets industry standards.
7.What is the process for return or replacement of TLC2274IDR?
All TLC2274IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274IDR, 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 TLC2274IDR part is unused and in its original packaging.
Return procedure for TLC2274IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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