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Texas Instruments TLC2274ID
- Part No.:
- TLC2274ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:34,085
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Product details
Overview
TLC2274ID 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 TLC2274ID datasheet, TLC2274ID pinout, TLC2274ID application, or TLC2274ID equivalent, key selection considerations include its ±2.2 V to ±8 V supply range, 950 µV max input offset voltage (A-grade), 4.4–6 mA quiescent current per package, and SOIC-14 packaging - critical for low-power analog monitoring, transducer interfaces, and white goods control circuits.
Technical Context
The TLC2274ID uses 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 operates down to the negative rail, supporting true single-supply operation with common-mode input range extending to VDD−.
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin under 10-kΩ/100-pF load conditions. The device is fully specified across temperature ranges up to 125°C (I- and Q-grade variants), with input offset voltage drift of only 2 µV/°C and long-term drift of 0.002 µV/month.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V (split) or 4.4 V to 16 V (single) - supports wide industrial and automotive input rails |
| Gain-Bandwidth Product | 2.25 MHz (at ±5 V) - enables stable closed-loop operation up to ~200 kHz with moderate gain |
| Slew Rate | 3.6 V/µs (typ) - supports fast settling for 12-bit ADC driving and pulse amplification |
| Input Offset Voltage | ≤950 µV (max, TLC2274A variant) - reduces DC error in precision gain stages and sensor bridges |
| Input Bias Current | 1 pA (typ) - preserves signal integrity in high-impedance sources like 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 | Includes VDD− (rail-to-rail input capability on negative side) - simplifies level-shifting in single-supply designs |
Pinout & Package
Package: SOIC-14 (3.91 mm × 8.65 mm), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - rail-to-rail swing supports full dynamic range into ADC reference rails |
| 2 | 1IN− | Inverting input of Channel 1 - matched with 1IN+ for precision differential gain configurations |
| 3 | 1IN+ | Non-inverting input of Channel 1 - accepts signals down to VDD−, enabling true single-supply sensor biasing |
| 4 | VDD+ | Positive supply terminal - connects to highest potential rail (e.g., +5 V or +12 V) |
| 5 | 2IN+ | Non-inverting input of Channel 2 - electrically isolated from Channel 1; supports independent signal paths |
| 6 | 2IN− | Inverting input of Channel 2 - used with feedback networks for configurable gain or filtering |
| 7 | 2OUT | Output of Channel 2 - identical AC/DC specs to Channel 1; enables dual-channel signal processing |
| 8 | NC | No connection - internal die pad; must remain unconnected per TI design guidelines |
| 9 | 3IN+ | Non-inverting input of Channel 3 - supports three-channel simultaneous acquisition (e.g., 3-phase motor sensing) |
| 10 | 3IN− | Inverting input of Channel 3 - maintains channel independence; no crosstalk beyond spec limits |
| 11 | VDD− | Negative supply terminal - connects to lowest potential rail (e.g., GND or −5 V); required for split-supply use |
| 12 | 4IN+ | Non-inverting input of Channel 4 - completes quad-channel architecture for multi-sensor or redundancy applications |
| 13 | 4IN− | Inverting input of Channel 4 - matches input impedance and bias behavior of other channels |
| 14 | 4OUT | Output of Channel 4 - rail-to-rail swing ensures consistent interface capability across all four outputs |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 15 mV of both supply rails at ±20 µA - eliminates headroom loss when interfacing with 3.3-V or 5-V ADCs |
| Low input bias current (1 pA) | Minimizes voltage error across high-impedance sources (>100 MΩ), such as pH electrodes or photodiode TIA feedback |
| Low noise (9 nV/√Hz) | Enables resolution of sub-mV signals without external filtering; improves SNR by >6 dB vs. TLC274 in 1-kHz bandwidth |
| Single- and split-supply operation | Fully characterized at 5 V and ±5 V - allows reuse across portable (3.3/5 V) and industrial (±5/±12 V) platforms |
| Input common-mode range includes VDD− | Accepts inputs at ground in single-supply mode - removes need for level-shifting circuitry in sensor front-ends |
Applications
| Refrigerator Temperature Control | Hand-held ECG Monitor |
|---|---|
|
Use Scenario: Amplifying thermistor or RTD bridge outputs in variable-speed compressor control modules. IC Role / Device Role / Timing Role: Quad op-amp configures two channels for bridge excitation and differential sensing, one for reference buffering, one for filter stage. Use Value: Rail-to-rail output ensures full 0–5 V ADC utilization; low bias current prevents thermistor self-heating errors. |
Use Scenario: Front-end signal conditioning for dry-electrode biopotential acquisition in portable diagnostics. IC Role / Device Role / Timing Role: Configured as 3-channel instrumentation amplifier (IA) plus 1-channel right-leg drive (RLD) buffer. Use Value: 1-pA input bias avoids electrode polarization; 9 nV/√Hz noise preserves microvolt-level QRS complexes. |
| Industrial Pressure Transducer Interface | Smart Meter Analog Front-End |
|
Use Scenario: Conditioning millivolt-level outputs from silicon strain-gauge pressure sensors in HVAC ducts. IC Role / Device Role / Timing Role: One channel as precision non-inverting amplifier (G = 100), others for offset nulling and reference scaling. Use Value: ≤950 µV max VIO limits zero-error in calibrated 0–100 psi range; 2.25-MHz GBW supports anti-alias filtering. |
Use Scenario: Signal chain for current/voltage sensing in Class 0.5 polyphase electricity meters. IC Role / Device Role / Timing Role: Four independent channels condition CT/PT outputs, shunt voltages, reference dividers, and anti-alias filters. Use Value: Matched channel specs enable consistent gain/phase response; 80–95 dB PSRR rejects switching power supply ripple. |
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), lower GBW (1.8 MHz), but rail-to-rail input/output and enhanced ESD rating (±4 kV HBM) | Better suited for high-speed, high-ESD environments (e.g., factory floor I/O modules); less optimal for ultra-low-power battery use | Select TLV2444IDR when system-level ESD robustness or faster settling at low gains is prioritized over battery life |
| OPA4340UA | Lower noise (8 nV/√Hz), higher precision (125 µV max VIO), but higher cost and limited temp range (−40°C to 85°C only) | Ideal for medical-grade signal chains requiring <0.1% gain error; not qualified for extended automotive or military temps | Choose OPA4340UA for metrology-class accuracy where budget and temp range allow; avoid for Q/M-grade deployments |
Compared with TLV2444IDR and OPA4340UA, the TLC2274ID offers the best balance of micropower operation (4.4–6 mA total), rail-to-rail output, and broad temperature qualification (−40°C to 125°C), making it optimal for cost-sensitive industrial and appliance designs requiring long-term stability and wide supply flexibility.
Availability
TLC2274ID is available at Aetrix Electronics and suitable for refrigerator temperature control, hand-held ECG monitors, industrial pressure transducer interfaces, smart meter analog front-ends, and white goods motor control requiring stable component supply across production lifecycles.
Supply support for TLC2274ID 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, embedded processing, and connectivity technologies, with over 50 years of innovation in precision analog ICs.
The TLC227x family was designed specifically for rail-to-rail output performance in low-noise, low-input-bias applications - bridging the gap between legacy CMOS op-amps and high-precision bipolar devices for sensor, measurement, and control systems.
FAQ
What supply voltage range does the TLC2274ID support?
The TLC2274ID operates from ±2.2 V to ±8 V in split-supply mode or 4.4 V to 16 V in single-supply configuration. This range accommodates standard 5-V, 12-V, and 15-V industrial rails, as well as battery-powered 3.3-V systems using charge pumps or regulators. Absolute maximum ratings cap at ±8 V supply, and operation outside recommended conditions may impair reliability or parametric performance.
Does the TLC2274ID have rail-to-rail input capability?
The TLC2274ID features rail-to-rail *output* swing but only rail-to-rail *input on the negative side*: its common-mode input range extends to VDD− (including ground in single-supply use), but stops 1.5 V below VDD+ at room temperature. For full rail-to-rail input, consider TI's TLV2464 or OPA4350 - the TLC2274ID's input stage is optimized for low bias current and noise, not full input range.
What is the maximum input offset voltage specification for the TLC2274ID?
The TLC2274ID is part of the standard TLC2274 grade (not the 'A' variant), with a maximum input offset voltage of 2500 µV at TA = 25°C and up to 3000 µV across full temperature range. If ≤950 µV max VIO is required, the pin-compatible TLC2274AID must be selected - both share identical SOIC-14 packaging and electrical behavior except for offset calibration.
Can the TLC2274ID drive capacitive loads directly?
The TLC2274ID is unity-gain stable with up to 100 pF capacitive load under recommended conditions (RL = 10 kΩ). Driving larger capacitive loads (e.g., >200 pF) risks peaking or oscillation; TI recommends adding a series resistor (≥100 Ω) between output and load or using isolation techniques per Section 10 of the datasheet. Layout parasitics must also be minimized to preserve phase margin.
Is the TLC2274ID qualified for automotive applications?
The TLC2274ID itself is an industrial-grade part (I-temp: −40°C to +125°C), but is not AEC-Q200 qualified. For automotive use, select the Q-grade variant TLC2274QDRQ1 (available in SOIC-14), which undergoes full automotive stress testing and includes PPAP documentation. Both share identical electrical specs, but only the Q1 version meets automotive reliability and traceability requirements.
TLC2274ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TLC2274ID FAQ
1.How can I place an order for TLC2274ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274ID 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 TLC2274ID reliable?
The price and inventory of TLC2274ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274ID is usually 5 days.
3.What payment methods are accepted for TLC2274ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274ID?
TLC2274ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274ID 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 TLC2274ID?
For technical support, including TLC2274ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274ID requirements.
6.How does Aetrix verify that TLC2274ID is sourced from the original manufacturer or authorized distributors?
All TLC2274ID 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 TLC2274ID meets industry standards.
7.What is the process for return or replacement of TLC2274ID?
All TLC2274ID units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274ID, 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 TLC2274ID part is unused and in its original packaging.
Return procedure for TLC2274ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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