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Texas Instruments TLC2274CPW
- Part No.:
- TLC2274CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2274CPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,826
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Product details
Overview
TLC2274CPW 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 TLC2274CPW datasheet, TLC2274CPW pinout, TLC2274CPW application, or TLC2274CPW equivalent, key selection criteria include its rail-to-rail output capability under ±2.2 V to ±8 V supply, 950-µV max input offset (A-grade), low 4.4–6 mA quiescent current per amplifier, and TSSOP-14 package compatibility with space-constrained industrial monitoring designs.
Technical Context
The TLC2274CPW 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 common-mode input range extends to the negative rail, supporting ground-sensing configurations in single-supply applications.
It operates across ±2.2 V to ±8 V (or 4.4 V to 16 V single-supply), with guaranteed performance over temperature ranges up to 125°C (I- and Q-grade variants). The device features 10¹²-Ω input resistance, 75–80 dB CMRR, and 80–95 dB supply rejection, making it suitable for high-impedance transducer interfaces where DC accuracy and AC fidelity are both critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - supports stable unity-gain buffering of signals up to ~2 MHz with minimal phase lag |
| Slew rate | 3.6 V/µs - enables clean 100-kHz full-scale sine output at 2-Vpp without slewing distortion |
| Input offset voltage (max) | 950 µV - ensures ≤0.02% error in 5-V full-scale 12-bit ADC interface at room temperature |
| Input bias current (typ) | 1 pA - preserves signal integrity when amplifying outputs from >1-GΩ sources (e.g., piezoelectric sensors) |
| Output swing | Rail-to-rail - delivers ≥4.9 Vpp output from 5-V supply, maximizing dynamic range into successive-stage ADCs |
| Supply voltage range | ±2.2 V to ±8 V - supports operation from low-voltage battery rails (e.g., two AA cells) up to industrial ±5 V systems |
| Input voltage noise | 9 nV/√Hz @ 1 kHz - contributes <1.5 µVrms integrated noise in 100-Hz–10-kHz band, critical for low-level analog sensing |
Pinout & Package
TLC2274CPW is housed in a 14-pin TSSOP (PW) package measuring 4.40 mm × 5.00 mm, with exposed pad not electrically connected. Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next stage; rail-to-rail capable |
| 2 | IN− A | Inverting input for Channel A - connects to feedback network or differential source |
| 3 | IN+ A | Non-inverting input for Channel A - accepts high-impedance sensor or reference signal |
| 4 | VDD+ | Positive supply terminal - must be decoupled locally with 0.1-µF ceramic capacitor |
| 5 | IN+ B | Non-inverting input for Channel B - isolated from Channel A for dual-path signal processing |
| 6 | IN− B | Inverting input for Channel B - supports independent gain configuration per channel |
| 7 | OUT B | Amplifier B output - electrically independent; shares VDD+ and VDD− with other channels |
| 8 | NC | No connection - floating; no internal bond wire or circuitry attached |
| 9 | IN− C | Inverting input for Channel C - enables three-channel simultaneous acquisition or filtering |
| 10 | IN+ C | Non-inverting input for Channel C - supports multi-sensor conditioning on single IC |
| 11 | VDD− | Negative supply terminal - referenced to system ground in single-supply mode |
| 12 | IN+ D | Non-inverting input for Channel D - completes quad-channel architecture for compact analog subsystems |
| 13 | IN− D | Inverting input for Channel D - allows independent configuration of fourth amplifier |
| 14 | OUT D | Amplifier D output - fully functional rail-to-rail output; matches performance of Channels A–C |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range output (e.g., 0 V to 5 V on 5-V rail), maximizing ADC utilization without level-shifting circuitry |
| Low input bias current (1 pA typ) | Minimizes voltage error across high-impedance sources like pH electrodes or photodiode transimpedance feedback resistors |
| Low noise (9 nV/√Hz @ 1 kHz) | Enables resolution of microvolt-level signals in medical ECG front-ends or precision weigh-scale bridges |
| Specified for single- and split-supply operation | Eliminates need for separate op-amp families - same part works in 3.3-V IoT nodes and ±5-V test equipment |
| Common-mode input range includes negative rail | Supports true ground-referenced inputs in single-supply systems, simplifying sensor biasing and PCB layout |
Applications
| Hand-held Monitoring Systems | Transducer Interfaces |
|---|---|
Use Scenario: Portable blood glucose meters and pulse oximeters requiring ultra-low power and high-accuracy analog front-ends. IC Role / Device Role / Timing Role: Quad amplifier conditions four independent biosensor signals (e.g., LED drivers, photodiode amps, reference buffers) simultaneously. Use Value: 1-pA input bias prevents loading of high-impedance electrochemical sensors; rail-to-rail output directly drives 12-bit SAR ADCs without external level shifters. | Use Scenario: Industrial pressure and temperature transducers with mV-level outputs feeding PLC analog input modules. IC Role / Device Role / Timing Role: Configured as precision instrumentation amplifier (using two channels) and reference buffer (remaining two), all on one die. Use Value: 950-µV max input offset ensures <0.02% FSR error at 5-V span; 75-dB CMRR rejects common-mode noise from 4–20 mA loop coupling. |
| Battery-Powered Applications | White Goods (Refrigerators, Washing Machines) |
Use Scenario: Smart home environmental sensors (CO₂, VOC, humidity) operating from coin-cell or Li-ion batteries for multi-year life. IC Role / Device Role / Timing Role: Amplifies low-level outputs from NDIR detectors and capacitive humidity sensors while minimizing quiescent current draw. Use Value: 4.4–6 mA total supply current (all four amps active) enables continuous sampling at sub-100-µA average current with duty cycling. | Use Scenario: Motor control feedback, door position sensing, and defrost cycle monitoring in energy-efficient appliances. IC Role / Device Role / Timing Role: Provides signal conditioning for hall-effect current sensors, thermistor networks, and vibration detection piezoelectric elements. Use Value: Guaranteed operation from –40°C to 125°C (I-grade) ensures reliability in compressor compartments; rail-to-rail output interfaces directly with MCU ADCs. |
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 | Lower 600-µV max VIO, 2.5-V/µs slew rate, 1.2-mA per amp supply current | Better DC precision but reduced bandwidth; suited for low-speed sensor buffering where offset dominates error budget | Select TLV2444IDR when VIO < 600 µV is mandatory and 1.5-MHz GBW suffices |
| OPA4340UA | Higher 5.5-MHz GBW, 6-V/µs slew rate, 1.8-mA per amp, 12-nV/√Hz noise | Superior speed and drive strength; requires tighter layout for stability due to higher bandwidth | Select OPA4340UA for audio or fast-settling data acquisition where >2-MHz closed-loop bandwidth is needed |
Compared with TLV2444IDR and OPA4340UA, the TLC2274CPW offers the best balance of rail-to-rail output, ultra-low input bias current (1 pA), and moderate power (4.4–6 mA total), making it ideal for high-impedance, battery-sensitive, precision analog front-ends where speed is secondary to DC accuracy and noise.
Availability
TLC2274CPW is available at Aetrix Electronics and suitable for hand-held monitoring systems, transducer interfaces, and battery-powered applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across temperature extremes.
Supply support for TLC2274CPW 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 TLC227x family was designed specifically for precision, low-power, rail-to-rail signal conditioning in resource-constrained systems - targeting applications where high input impedance, low noise, and wide output dynamic range are essential.
FAQ
What supply voltage range does the TLC2274CPW support?
The TLC2274CPW operates from ±2.2 V to ±8 V (split-supply) or 4.4 V to 16 V (single-supply), with full specifications guaranteed across this range. At ±5 V, it delivers rail-to-rail output swing, 2.25-MHz gain-bandwidth, and 3.6-V/µs slew rate - enabling robust performance in both battery-powered and industrial power domains. The TLC2274CPW maintains functionality down to ±2.2 V, supporting ultra-low-power designs.
Does the TLC2274CPW have rail-to-rail input capability?
No, the TLC2274CPW has rail-to-rail *output* swing but its common-mode input voltage range extends only to the negative rail (VDD−) and up to VDD+ − 1.5 V. For example, at ±5 V supply, VICR spans –5 V to +3.5 V. This allows ground-referenced inputs in single-supply use but does not support full rail-to-rail input common-mode range. Input signals beyond this range may cause increased offset or phase reversal.
What is the maximum input offset voltage specification for the TLC2274CPW?
The TLC2274CPW is the standard grade (non-A) version, with a maximum input offset voltage of 2500 µV at TA = 25°C and 3000 µV over full temperature range. For tighter DC accuracy, the pin-compatible TLC2274ACPW variant specifies 950 µV maximum at 25°C and 1500 µV over temperature - both share identical pinout, package, and AC performance.
Can the TLC2274CPW drive capacitive loads directly?
The TLC2274CPW is stable with capacitive loads up to 100 pF when configured as a unity-gain buffer, as verified in the datasheet's typical characteristics. For loads exceeding 100 pF (e.g., long traces or ADC input capacitance), external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to maintain phase margin and prevent peaking or oscillation. Its 140-Ω closed-loop output impedance at 1 MHz supports moderate capacitive loading without compensation.
Is the TLC2274CPW suitable for automotive applications?
The TLC2274CPW is rated for 0°C to 70°C (C-grade) and is not qualified for automotive use. However, the pin-compatible TLC2274QPWRQ1 (Q-grade) is AEC-Q100 qualified for –40°C to 125°C operation and includes enhanced ESD protection (±2000 V HBM). For automotive body electronics or infotainment subsystems requiring quad rail-to-rail op-amps, the Q1 variant is the appropriate choice - the TLC2274CPW remains optimal for commercial and industrial temperature-range designs.
TLC2274CPW 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:
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
TLC2274CPW FAQ
1.How can I place an order for TLC2274CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274CPW 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 TLC2274CPW reliable?
The price and inventory of TLC2274CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274CPW is usually 5 days.
3.What payment methods are accepted for TLC2274CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274CPW?
TLC2274CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274CPW 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 TLC2274CPW?
For technical support, including TLC2274CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274CPW requirements.
6.How does Aetrix verify that TLC2274CPW is sourced from the original manufacturer or authorized distributors?
All TLC2274CPW 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 TLC2274CPW meets industry standards.
7.What is the process for return or replacement of TLC2274CPW?
All TLC2274CPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274CPW, 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 TLC2274CPW part is unused and in its original packaging.
Return procedure for TLC2274CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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