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Texas Instruments TLC2274ACPW
- Part No.:
- TLC2274ACPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC2274ACPW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:282
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Product details
Overview
TLC2274ACPW 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 TLC2274ACPW datasheet, TLC2274ACPW pinout, TLC2274ACPW application, or TLC2274ACPW equivalent, key selection criteria include its guaranteed 950-µV max input offset voltage (A-grade), ±5-V operation capability, TSSOP-14 package footprint, low 4.8-mA supply current per amplifier, and compatibility with high-impedance transducer sources requiring micropower and low-input-current performance.
Technical Context
The TLC2274ACPW employs advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage operates down to the negative rail, supporting true single-supply operation with common-mode input range extending to VDD−.
It features fully specified AC and DC performance across ±2.2 V to ±8 V supply ranges and −40°C to +125°C temperature range (I-grade). The device exhibits 75-dB minimum CMRR and 80-dB minimum PSRR, ensuring stable operation in noisy industrial environments with varying supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports wide-range split supplies and 4.4-V to 16-V single supplies |
| Input Offset Voltage (Max) | 950 µV at TA = 25°C - enables precision DC-coupled amplification without trimming |
| Gain-Bandwidth Product | 2.25 MHz at ±5 V - sufficient for anti-aliasing filters and medium-speed sensor signal chains |
| Slew Rate | 3.6 V/µs typical - handles fast transients in motor control feedback or audio preamp stages |
| Input Bias Current (Typ) | 1 pA - preserves signal integrity from high-impedance piezoelectric or pH sensors |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than legacy TLC27x, critical for low-level signal recovery |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–5 V or ±5 V reference rails |
Pinout & Package
TLC2274ACPW is housed in a 14-pin TSSOP package (4.40 mm × 5.00 mm body size) with exposed pad option not specified; thermal resistance RθJA = 111.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives loads up to ±50 mA; rail-to-rail swing |
| 2 | IN− A | Inverting input A - high-impedance node (10¹² Ω); sensitive to layout parasitics |
| 3 | IN+ A | Non-inverting input A - accepts common-mode voltages down to VDD− |
| 4 | VDD+ | Positive supply - must be decoupled locally with 0.1-µF ceramic capacitor |
| 5 | IN+ B | Non-inverting input B - electrically isolated from Channel A; identical specs |
| 6 | IN− B | Inverting input B - shares no internal coupling with other channels |
| 7 | OUT B | Amplifier B output - independent output stage; no crosstalk below −80 dB |
| 8 | NC | No connection - floating pin; leave unconnected per TI recommendation |
| 9 | IN− C | Inverting input C - third channel input; supports multi-channel sensor conditioning |
| 10 | IN+ C | Non-inverting input C - matches input impedance and noise performance of A/B |
| 11 | VDD− | Negative supply - required for split-supply operation; tied to GND for single-supply use |
| 12 | IN+ D | Non-inverting input D - fourth channel; enables compact 4-channel analog front-end |
| 13 | IN− D | Inverting input D - fully specified across temperature; no derating needed |
| 14 | OUT D | Amplifier D output - delivers same rail-to-rail performance as Channels A–C |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range at output - eliminates headroom loss when driving SAR or delta-sigma ADCs |
| Low 1-pA input bias current | Minimizes voltage error across high-value feedback networks (>1 MΩ) used in photodiode or strain gauge amps |
| 950-µV max input offset (A-grade) | Reduces need for external nulling circuitry in precision instrumentation and medical sensor interfaces |
| 2.2-MHz bandwidth at low power | Enables stable unity-gain buffering of 10-bit+ ADC inputs without phase margin compromise |
| Specified for ±5 V and +5 V operation | Supports drop-in replacement in legacy TLC274 designs while improving noise and offset performance |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level signals from piezoelectric accelerometers or capacitive humidity sensors. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with ultra-low input current and rail-to-rail output driving 12-bit ADC input. Use Value: 1-pA bias current prevents signal attenuation across high-Z sensor elements; rail-to-rail swing maximizes ADC utilization. | Use Scenario: Signal conditioning in portable ECG or blood glucose meters operating from coin cells. IC Role / Device Role / Timing Role: Quad op-amp providing simultaneous lead-I/II/III amplification and reference buffer. Use Value: 4.8-mA total quiescent current (1.2 mA per amp) extends battery life; low noise preserves diagnostic SNR. |
| White Goods Control | Analog Front-End for Industrial ADCs |
Use Scenario: Temperature and motor current sensing in refrigerator compressor control modules. IC Role / Device Role / Timing Role: Sensor signal conditioner with ESD-hardened inputs (±2-kV HBM) and wide-temp operation. Use Value: Guaranteed operation from −40°C to +125°C ensures reliability in sealed compartments; 75-dB CMRR rejects motor switching noise. | Use Scenario: Driving the input of precision 16-bit SAR ADCs (e.g., ADS8860) in PLC analog input modules. IC Role / Device Role / Timing Role: Low-noise, low-offset buffer isolating ADC from upstream signal chain. Use Value: 9-nV/√Hz noise and 950-µV offset ensure <0.01% gain error; rail-to-rail output matches ADC reference rails. |
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 |
|---|---|---|---|
| TLC2274CPW | Higher 2500-µV max input offset (standard grade vs. A-grade); otherwise identical pinout, specs, and package | Suitable where offset drift is compensated digitally or via calibration; lower cost for non-precision uses | Select TLC2274CPW when system-level calibration compensates for initial offset; TLC2274ACPW required for zero-calibration designs |
| TLV2434ID | Lower 1.2-mA/amplifier supply current, but reduced 1.8-MHz GBW and 1.2-V/µs slew rate; SOIC-14 only | Better suited for ultra-low-power, lower-bandwidth applications like environmental sensor nodes | Choose TLV2434ID only if power budget is tighter than 4.8 mA and bandwidth needs are ≤1.8 MHz |
Compared with TLC2274CPW and TLV2434ID, the TLC2274ACPW uniquely balances precision (950-µV offset), speed (2.25-MHz GBW), and noise (9 nV/√Hz) in a TSSOP-14 package - making it optimal for space-constrained, high-fidelity analog front-ends where calibration overhead must be minimized.
Availability
TLC2274ACPW is available at Aetrix Electronics and suitable for white goods control, battery-powered monitoring systems, and industrial analog front-end designs requiring stable component supply, long-term lifecycle support, and guaranteed A-grade electrical screening.
Supply support for TLC2274ACPW 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-noise, rail-to-rail output amplification in resource-constrained systems - targeting transducer interfaces, portable instrumentation, and industrial signal conditioning where micropower and high input impedance are essential.
FAQ
What is the maximum supply voltage rating for the TLC2274ACPW?
The TLC2274ACPW has an absolute maximum supply voltage rating of ±8 V (or 16 V total across VDD+ and VDD−). Operation beyond this risks permanent damage. Recommended operating range is ±2.2 V to ±8 V, with full electrical specifications guaranteed across that span. Always observe derating guidelines for extended temperature operation.
Does the TLC2274ACPW support true single-supply operation with input referenced to ground?
Yes, the TLC2274ACPW supports true single-supply operation. Its common-mode input voltage range includes the negative rail (VDD−), which may be tied to ground. With VDD− = GND and VDD+ = 5 V, inputs can swing from 0 V to 3.5 V (typical), and the output swings rail-to-rail (0 V to 5 V), enabling direct interfacing with microcontroller ADCs.
How does the input offset voltage of the TLC2274ACPW compare to the standard TLC2274CPW?
The TLC2274ACPW guarantees a maximum input offset voltage of 950 µV at 25°C, whereas the TLC2274CPW has a maximum of 2500 µV under the same conditions. This A-grade binning makes the TLC2274ACPW suitable for applications requiring higher DC accuracy without external trimming or digital calibration.
Is the TLC2274ACPW pin-compatible with the older TLC274 series?
Yes, the TLC2274ACPW is pin-compatible with the TLC274 in the same 14-pin TSSOP (PW) package. However, it is not a direct functional drop-in: the TLC2274ACPW offers rail-to-rail output, lower noise (9 nV/√Hz vs. 18 nV/√Hz), lower input bias current (1 pA vs. 10 pA), and improved input offset voltage - requiring verification of loop stability and noise performance in legacy designs.
What thermal considerations apply to the TLC2274ACPW in a TSSOP-14 package?
The TLC2274ACPW in TSSOP-14 (PW) has a junction-to-ambient thermal resistance (RθJA) of 111.6°C/W. At 4.8 mA total supply current and ±5 V supplies, power dissipation is ~48 mW. Under still-air conditions, this yields ~5.4°C junction-to-ambient rise - well within safe limits. For high-density layouts, add copper pour under the exposed pad (if present) and use thermal vias to inner ground planes.
TLC2274ACPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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
TLC2274ACPW FAQ
1.How can I place an order for TLC2274ACPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274ACPW 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 TLC2274ACPW reliable?
The price and inventory of TLC2274ACPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274ACPW is usually 5 days.
3.What payment methods are accepted for TLC2274ACPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274ACPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274ACPW?
TLC2274ACPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274ACPW 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 TLC2274ACPW?
For technical support, including TLC2274ACPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274ACPW requirements.
6.How does Aetrix verify that TLC2274ACPW is sourced from the original manufacturer or authorized distributors?
All TLC2274ACPW 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 TLC2274ACPW meets industry standards.
7.What is the process for return or replacement of TLC2274ACPW?
All TLC2274ACPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274ACPW, 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 TLC2274ACPW part is unused and in its original packaging.
Return procedure for TLC2274ACPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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