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Texas Instruments TLC2274QD
- Part No.:
- TLC2274QD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274QD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,212
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Product details
Overview
TLC2274QD from Texas Instruments is a quad rail-to-rail output operational amplifier designed for precision 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, ±5 V supply operation, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2274QD datasheet, TLC2274QD pinout, TLC2274QD application, or TLC2274QD equivalent, key selection considerations include its Q-temp automotive qualification (–40°C to 125°C), low 1-pA typical input bias current, 950-µV maximum input offset voltage (A-grade), and SOIC-14 package compatibility with legacy TLC274 layouts.
Technical Context
The TLC2274QD 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 draws 4.8 mA typical supply current at ±5 V and supports full-swing output into 10-kΩ loads across its specified temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±2.2 V to ±8 V - supports industrial and automotive dual-rail systems including ±5 V standard logic interfaces. |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz with moderate gain (e.g., AV = 10). |
| Slew Rate | 3.6 V/µs - ensures <2.6 µs settling to 0.01% for ±2.3-V step, suitable for medium-speed data acquisition. |
| Input Offset Voltage | ≤950 µV max (TLC2274A variant) - reduces DC error in precision transducer amplification without trimming. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 0–5 V or ±5 V reference rails, maximizing SNR utilization. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - two times lower than TLC274, critical for low-level analog signal fidelity. |
Pinout & Package
TLC2274QD is supplied in a 14-pin SOIC (Small Outline Integrated Circuit) package with nominal body size 3.91 mm × 8.65 mm, optimized for automated assembly and thermal performance in space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier Channel 1 output - drives external load or next-stage input with rail-to-rail capability. |
| 2 | 1IN− | Inverting input, Channel 1 - accepts feedback network or differential signal path. |
| 3 | 1IN+ | Non-inverting input, Channel 1 - connects to high-impedance sensor or reference source. |
| 4 | VDD+ | Positive supply terminal - must be decoupled locally (e.g., 100 nF ceramic) for stability. |
| 5 | 2IN+ | Non-inverting input, Channel 2 - isolated from Channel 1 for independent signal paths. |
| 6 | 2IN− | Inverting input, Channel 2 - used for differential configuration or active filtering. |
| 7 | 2OUT | Amplifier Channel 2 output - electrically identical to Pin 1, fully independent channel. |
| 8 | NC | No connection - internal die pad not bonded; leave unconnected on PCB. |
| 9 | 3IN− | Inverting input, Channel 3 - enables three-channel simultaneous signal conditioning. |
| 10 | 3IN+ | Non-inverting input, Channel 3 - supports multi-sensor monitoring without external multiplexing. |
| 11 | VDD− | Negative supply terminal - required for split-supply operation; tied to GND for single-supply use. |
| 12 | 4IN+ | Non-inverting input, Channel 4 - completes quad-channel architecture for compact system integration. |
| 13 | 4IN− | Inverting input, Channel 4 - allows four independent op-amp configurations on one IC. |
| 14 | 4OUT | Amplifier Channel 4 output - matches electrical specs of other outputs; supports parallel drive if needed. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full-scale output within 10 mV of both supply rails, maximizing usable dynamic range for ADC interfacing. |
| Low input bias current (1 pA typ) | Minimizes voltage error across high-impedance sources (e.g., pH electrodes, photodiodes) without guard traces. |
| Low noise (9 nV/√Hz @ 1 kHz) | Enables clean amplification of microvolt-level signals in medical or instrumentation front-ends. |
| Q-temp automotive qualification | Rated for –40°C to +125°C operation with AEC-Q100 stress testing, suitable for engine control and ADAS modules. |
| Fully specified single- and split-supply operation | Validated from ±2.2 V to ±8 V and single 4.4–16 V, simplifying power architecture across diverse platforms. |
Applications
| White Goods Sensor Interface | Hand-held Battery Monitoring |
|---|---|
|
Use Scenario: Amplifying thermistor and pressure sensor outputs in refrigerator control boards. IC Role / Device Role / Timing Role: Quad-channel signal conditioner providing simultaneous analog front-end for temperature, humidity, and compressor status sensing. Use Value: Rail-to-rail output ensures full utilization of 10-bit ADC reference (0–5 V), while 1-pA bias current prevents thermistor self-heating errors. |
Use Scenario: Signal conditioning for Li-ion cell voltage and current sensing in portable multimeters. IC Role / Device Role / Timing Role: Low-power quad op-amp performing differential current sense, battery voltage scaling, and reference buffering. Use Value: 4.8 mA supply current at ±5 V enables >100-hour runtime on coin-cell batteries; low noise preserves measurement resolution. |
| Transducer Interface Module | Industrial PLC Analog Input |
|
Use Scenario: Conditioning piezoelectric vibration sensor outputs in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: High-input-impedance amplifier stage with AC-coupled gain and rail-to-rail output driving SAR ADC. Use Value: 10¹² Ω input resistance and 9 nV/√Hz noise preserve weak high-Z sensor signals; CMRR ≥75 dB rejects motor EMI. |
Use Scenario: Front-end amplification and level-shifting for 4–20 mA loop receivers in factory automation I/O modules. IC Role / Device Role / Timing Role: Precision op-amp converting current-to-voltage, filtering, and driving isolated ADC inputs. Use Value: 950 µV max VIO and 80 dB kSVR ensure stable 0.1% accuracy over supply and temperature variations in harsh environments. |
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 |
|---|---|---|---|
| TLC2274CDR | Commercial-grade (0°C to 70°C), same SOIC-14 pinout and electrical specs except wider VIO (2500 µV max) and no AEC-Q100 qualification. | Targeted at cost-sensitive consumer or lab equipment where extended temperature range is unnecessary. | Select TLC2274CDR only for non-automotive, non-industrial ambient environments with relaxed offset and reliability requirements. |
| TLV2434IDR | Higher supply current (1.2 mA per amp), lower GBW (220 kHz), but rail-to-rail input/output and 1.8–6 V operation - supports ultra-low-voltage systems. | Used in portable medical devices requiring 3.3 V or 1.8 V single-supply operation, not ±5 V systems. | Choose TLV2434IDR when operating below 2.7 V or when micropower (<1 mA/amp) is prioritized over speed and precision. |
Compared with TLC2274CDR, the TLC2274QD offers guaranteed automotive temperature range and tighter offset spec; versus TLV2434IDR, it provides 10× higher bandwidth and lower noise but requires higher supply voltage and consumes more current.
Availability
TLC2274QD is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, and handheld test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2274QD 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 and embedded processing technologies, with decades of expertise in precision op-amps and automotive-qualified components.
The TLC227x family was engineered to upgrade legacy TLC27x designs with rail-to-rail output, lower noise, and improved input offset - specifically targeting transducer interface, battery-powered instrumentation, and automotive sensor signal chains.
FAQ
What is the operating temperature range for the TLC2274QD?
The TLC2274QD is qualified for operation from –40°C to +125°C, meeting AEC-Q100 Grade 2 requirements for automotive applications. This rating is validated across all electrical parameters in the datasheet, including input offset voltage, supply current, and output swing, ensuring reliable performance in under-hood and transmission-control environments.
Does the TLC2274QD support single-supply operation?
Yes, the TLC2274QD is fully specified for single-supply operation from 4.4 V to 16 V. Its common-mode input voltage range includes the negative rail (VDD−), and output swings rail-to-rail - enabling direct interfacing with 0–5 V ADCs without level-shifting circuitry when VDD− is tied to ground.
What is the maximum output current capability of the TLC2274QD?
The TLC2274QD can source or sink ±50 mA per amplifier, as defined in Absolute Maximum Ratings. However, for linear operation with minimal distortion and thermal rise, the recommended continuous output current is ±200 µA at room temperature - increasing to ±1 mA only for short-duration pulses with proper PCB thermal design.
How does the TLC2274QD differ from the standard TLC2274?
The TLC2274QD is the Q-temp automotive-qualified version of the TLC2274, featuring identical electrical specifications but tested to AEC-Q100 standards, extended temperature range (–40°C to 125°C), and enhanced reliability screening. The "Q" suffix denotes automotive qualification; the "D" denotes SOIC-14 packaging.
Is the TLC2274QD pin-compatible with the TLC274 series?
Yes, the TLC2274QD is pin-compatible with the TLC274 in SOIC-14 packages, sharing identical pin functions and layout footprint. This enables drop-in replacement to improve noise, offset, and output swing without PCB redesign - though designers must verify supply voltage compatibility and update bypass capacitor values per the newer device's recommendations.
TLC2274QD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm 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:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274QD FAQ
1.How can I place an order for TLC2274QD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274QD 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 TLC2274QD reliable?
The price and inventory of TLC2274QD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274QD is usually 5 days.
3.What payment methods are accepted for TLC2274QD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274QD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274QD?
TLC2274QD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274QD 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 TLC2274QD?
For technical support, including TLC2274QD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274QD requirements.
6.How does Aetrix verify that TLC2274QD is sourced from the original manufacturer or authorized distributors?
All TLC2274QD 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 TLC2274QD meets industry standards.
7.What is the process for return or replacement of TLC2274QD?
All TLC2274QD units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274QD, 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 TLC2274QD part is unused and in its original packaging.
Return procedure for TLC2274QD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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