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Texas Instruments TLC2274CPWRG4
- Part No.:
- TLC2274CPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2274CPWRG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,715
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Product details
Overview
TLC2274CPWRG4 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 ±5-V operation with rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2274CPWRG4 datasheet, TLC2274CPWRG4 pinout, TLC2274CPWRG4 application, or TLC2274CPWRG4 equivalent, key selection criteria include its rail-to-rail output capability under ±5-V supply, sub-1-mV max input offset voltage (TLC2274A variant), ultra-low input bias current for high-impedance transducer interfaces, and verified performance across –40°C to 125°C industrial temperature range.
Technical Context
The TLC2274CPWRG4 employs advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typ) and low noise (9 nV/√Hz). Its input stage supports common-mode voltage down to VDD−, enabling direct sensing at ground-referenced nodes in single-supply configurations.
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 real-world PCB layouts without external compensation. The device draws 4.8 mA typical supply current per amplifier at ±5 V, balancing speed and power efficiency for portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - supports closed-loop gains up to ~22 at 100-kHz signal bandwidth |
| Slew rate | 3.6 V/µs - enables clean 20-kHz sine-wave output at ±2.3-V amplitude without distortion |
| Input offset voltage (max) | 950 µV - ensures ≤0.019% full-scale error in 5-V ADC reference buffer applications |
| Input bias current (typ) | 1 pA - minimizes voltage error across >1-GΩ source impedances (e.g., piezoelectric sensors) |
| Input voltage noise density | 9 nV/√Hz at 1 kHz - 2× lower than TLC27x predecessors, critical for microvolt-level signal integrity |
| Common-mode input range | Includes VDD− - allows direct connection of grounded thermocouples or shunt monitors without level-shifting |
| Supply voltage range | ±2.2 V to ±8 V - supports dual-rail operation from ±3 V (Li-ion compatible) up to ±5 V industrial rails |
Pinout & Package
TLC2274CPWRG4 is packaged in a 14-pin TSSOP (PW) with 4.40 mm × 5.00 mm body size and 0.65-mm lead pitch. This RoHS-compliant surface-mount package supports automated assembly and offers thermal resistance RθJA = 111.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of Channel 1 - rail-to-rail swing supports direct drive of SAR ADC inputs |
| 2 | IN1− | Inverting input of Channel 1 - matched to IN1+ for precision differential gain stages |
| 3 | IN1+ | Non-inverting input of Channel 1 - accepts signals down to VDD− (ground in single-supply mode) |
| 4 | VDD+ | Positive supply terminal - must be decoupled locally with 0.1-µF ceramic capacitor |
| 5 | IN2+ | Non-inverting input of Channel 2 - electrically isolated from Channel 1 for multi-sensor conditioning |
| 6 | IN2− | Inverting input of Channel 2 - supports unity-gain inverter or transimpedance configurations |
| 7 | OUT2 | Output of Channel 2 - independent output stage avoids crosstalk in multi-channel filtering |
| 8 | NC | No connection - not bonded; must remain unconnected on PCB |
| 9 | IN3− | Inverting input of Channel 3 - shares same silicon die but separate input structure |
| 10 | IN3+ | Non-inverting input of Channel 3 - usable as dedicated reference buffer or active filter stage |
| 11 | VDD− | Negative supply terminal - connects to ground in single-supply operation (VDD−/GND) |
| 12 | IN4+ | Non-inverting input of Channel 4 - enables four independent analog paths on one IC |
| 13 | IN4− | Inverting input of Channel 4 - supports simultaneous 4-channel sensor signal conditioning |
| 14 | OUT4 | Output of Channel 4 - fully specified for ±500 µA load, suitable for driving 10-kΩ ADC inputs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full dynamic range to ADCs: VOH ≥ 4.85 V and VOL ≤ 0.15 V at ±5 V supply and 500 µA load |
| Low input bias current | 1-pA typical enables accurate amplification of signals from high-impedance sources like pH electrodes or photodiodes |
| Low input voltage noise | 9 nV/√Hz at 1 kHz reduces integrated noise floor in 10-Hz–10-kHz sensor bandwidths by >30% vs. TLC274 |
| Split- and single-supply support | Fully characterized from ±2.2 V to ±8 V and 4.4 V to 16 V - eliminates need for separate op-amp families per supply architecture |
| Industrial temperature range | Specified over –40°C to +125°C - validated for use in motor control feedback loops and automotive cabin modules |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying mV-level output from a piezoresistive pressure sensor in HVAC duct static-pressure monitoring. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 1000, using Channel 1 of TLC2274CPWRG4 in single-supply 5-V configuration. Use Value: 1-pA input bias current prevents loading-induced offset shift; rail-to-rail output ensures full 0–4.8 V span into 12-bit ADC reference input. | Use Scenario: Signal conditioning for a handheld ECG front-end powered by two AA cells (3 V nominal). IC Role / Device Role / Timing Role: Quad amplifier implementing high-pass filter, low-pass filter, instrumentation amp, and reference buffer - all within one TLC2274CPWRG4. Use Value: 4.4 mA total quiescent current (1.1 mA per channel) extends battery life; rail-to-rail output maximizes SNR into 3-V ADC. |
| White Goods Control | Analog Front-End for Industrial ADCs |
Use Scenario: Temperature sensing and motor current monitoring in a smart refrigerator's main control board. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: Channel 1 buffers NTC thermistor divider; Channel 2 amplifies shunt-voltage for BLDC motor phase current. Use Value: Common-mode input range including VDD− allows direct connection to grounded shunt; 125°C rating ensures reliability near compressor heat sources. | Use Scenario: Driving the analog input of a 16-bit SAR ADC (e.g., ADS8860) in an industrial data logger. IC Role / Device Role / Timing Role: Output buffer and level-shifter for anti-aliasing filter output, operating at ±5 V with 10-kΩ load. Use Value: 3.6-V/µs slew rate settles 16-bit steps (<77 µV) in <1.5 µs; low THD+N (0.0011%) preserves SFDR >95 dB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2274CDR | Same electrical specs, SOIC-14 package (3.91 mm × 8.65 mm); higher RθJA (83.8°C/W) than PW | Preferred for through-hole prototyping or legacy SOIC footprints; less suitable for high-density portable PCBs | Select TLC2274CDR only when SOIC-14 footprint compatibility is required; otherwise prefer TLC2274CPWRG4 for smaller area and better thermal performance. |
| TLV2434IDR | Lower supply current (1.3 mA/ch), lower slew rate (1.5 V/µs), narrower GBW (1.4 MHz); no A-grade option | Better for ultra-low-power sensor nodes where speed <100 kHz is sufficient; lacks 950-µV max VIO guarantee | Choose TLV2434IDR for battery life-critical designs below 50-kHz bandwidth; retain TLC2274CPWRG4 when precision (≤950 µV VIO) and 2.25-MHz GBW are mandatory. |
Compared with TLC2274CDR and TLV2434IDR, the TLC2274CPWRG4 provides superior thermal performance in compact layouts, guaranteed low-offset A-grade variants, and higher bandwidth-making it optimal for space-constrained industrial signal chains requiring both precision and speed.
Availability
TLC2274CPWRG4 is available at Aetrix Electronics and suitable for industrial motor control, portable medical instrumentation, and white goods sensor interface applications requiring stable component supply and long-term manufacturability.
Supply support for TLC2274CPWRG4 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 for industrial, automotive, and personal electronics markets.
The TLC227x family was designed specifically for precision, low-noise, rail-to-rail output signal conditioning in resource-constrained systems - targeting transducer interfaces, portable instrumentation, and industrial ADC drivers where input bias current and noise directly impact measurement fidelity.
FAQ
What is the maximum operating temperature range for the TLC2274CPWRG4?
The TLC2274CPWRG4 is rated for operation from –40°C to +125°C, meeting industrial temperature requirements. This specification is validated across all electrical parameters in the datasheet's "Recommended Operating Conditions" table, and applies to the C-grade (commercial), I-grade (industrial), and Q-grade (automotive) variants - with the CPWRG4 suffix indicating the industrial-grade TSSOP package.
Does the TLC2274CPWRG4 support true rail-to-rail input common-mode range?
The TLC2274CPWRG4 supports rail-to-rail *output* swing but has a limited common-mode input range: down to VDD− (including ground in single-supply mode) but only 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 but excludes full positive-rail operation - unlike some newer TI amplifiers such as the OPA333.
Can the TLC2274CPWRG4 drive a 10-kΩ load while maintaining rail-to-rail output?
Yes - the TLC2274CPWRG4 guarantees rail-to-rail output performance into 10-kΩ loads. At ±5 V supply and TA = 25°C, VOH ≥ 4.85 V and VOL ≤ 0.15 V are specified for IO = ±500 µA, which corresponds to a 10-kΩ load. Performance remains compliant across the full industrial temperature range (–40°C to +125°C) per the "TLC2274 and TLC2274A Electrical Characteristics VDD± = ±5 V" section.
How does the input offset voltage of the TLC2274CPWRG4 compare to the TLC2274A variant?
The TLC2274CPWRG4 is the standard-grade version with a maximum input offset voltage of 2500 µV at TA = 25°C. In contrast, the TLC2274A variant (e.g., TLC2274ACDR) is the precision grade, specified with a tighter max VIO of 950 µV at TA = 25°C and 1500 µV across full temperature range. Both share identical pinout, package, and AC specifications - only DC precision differs.
Is the TLC2274CPWRG4 pin-compatible with the older TLC274 series?
No - the TLC2274CPWRG4 is not pin-compatible with the TLC274. While both are quad op-amps in 14-pin packages, the TLC274 uses a different pinout: its VDD− is on Pin 11 (same as TLC2274CPWRG4), but its IN3+ and IN3− are on Pins 10 and 9 respectively, whereas TLC2274CPWRG4 places IN3+ on Pin 10 and IN3− on Pin 9 - matching the order. However, TLC2274CPWRG4 adds NC on Pin 8 and reassigns OUT3/OUT4 positions, making direct replacement impossible without PCB revision.
TLC2274CPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
TLC2274CPWRG4 FAQ
1.How can I place an order for TLC2274CPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274CPWRG4 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 TLC2274CPWRG4 reliable?
The price and inventory of TLC2274CPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274CPWRG4 is usually 5 days.
3.What payment methods are accepted for TLC2274CPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274CPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274CPWRG4?
TLC2274CPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274CPWRG4 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 TLC2274CPWRG4?
For technical support, including TLC2274CPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274CPWRG4 requirements.
6.How does Aetrix verify that TLC2274CPWRG4 is sourced from the original manufacturer or authorized distributors?
All TLC2274CPWRG4 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 TLC2274CPWRG4 meets industry standards.
7.What is the process for return or replacement of TLC2274CPWRG4?
All TLC2274CPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274CPWRG4, 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 TLC2274CPWRG4 part is unused and in its original packaging.
Return procedure for TLC2274CPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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