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Texas Instruments TLC2274ACDR
- Part No.:
- TLC2274ACDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274ACDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,196
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Product details
Overview
TLC2274ACDR from Texas Instruments is a quad rail-to-rail output operational amplifier in SOIC-14 package, delivering 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-precision signal conditioning in battery-powered transducer interfaces and ADC driver stages.
For engineers reviewing the TLC2274ACDR datasheet, TLC2274ACDR pinout, TLC2274ACDR application, or TLC2274ACDR equivalent, key selection considerations include its rail-to-rail output capability under ±5-V supply, low 1-pA input bias current for high-impedance sensor interfacing, 950-µV maximum input offset voltage (A-grade), 2.2-MHz bandwidth for moderate-speed closed-loop designs, and SOIC-14 thermal performance (θJA = 83.8°C/W).
Technical Context
The TLC2274ACDR uses 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 single-supply configurations with ground-referenced inputs.
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin with 10-kΩ load and 100-pF capacitive load. The device is fully specified across ±2.2 V to ±8 V supplies and supports operation from –40°C to 125°C (I-grade), with 950-µV max VIO at 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz - enables stable closed-loop gain up to ~22 at 100 kHz with adequate phase margin |
| Slew rate | 3.6 V/µs - supports 1-VPP output at ~570 kHz without slew-induced distortion |
| Input bias current | 1 pA typical - preserves signal integrity when amplifying from >1-GΩ sources (e.g., piezoelectric sensors) |
| Input voltage noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC27x predecessors, critical for low-level analog front-ends |
| Input offset voltage | ≤950 µV max (A-grade) - ensures <0.02% gain error in 5-V full-scale instrumentation paths |
| Common-mode input range | Includes negative rail (VDD–) - allows direct ground-referenced input in single-supply systems |
| Supply voltage range | ±2.2 V to ±8 V - supports dual-supply industrial rails and low-voltage portable designs |
Pinout & Package
SOIC-14 package (3.91 mm × 8.65 mm body size, 1.27-mm pitch), surface-mount, plastic, with exposed pad not present. Thermal resistance θJA = 83.8°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplified output of Channel 1 - rail-to-rail swing supports full dynamic range into ADC reference rails |
| 2 | IN− A | Inverting input of Channel 1 - high 1012-Ω common-mode input resistance minimizes loading on passive filters |
| 3 | IN+ A | Non-inverting input of Channel 1 - accepts signals down to VDD–, enabling true single-supply sensor biasing |
| 4 | VDD– | Negative supply terminal - must be connected; no internal connection to GND unless explicitly configured as such |
| 5 | IN+ B | Non-inverting input of Channel 2 - electrically isolated per channel; supports independent feedback networks |
| 6 | IN− B | Inverting input of Channel 2 - matched input characteristics to Channel 1 ensure consistent multi-channel performance |
| 7 | OUT B | Amplified output of Channel 2 - identical AC/DC specs to OUT A; usable for differential drive or parallel gain staging |
| 8 | VDD+ | Positive supply terminal - supplies both input and output stages; decoupling required within 1 cm |
| 9 | OUT C | Amplified output of Channel 3 - enables 3-channel signal path (e.g., RGB sensor conditioning or triple-phase monitoring) |
| 10 | IN− C | Inverting input of Channel 3 - shares same input structure as Channels A/B; no crosstalk beyond PSRR limits |
| 11 | IN+ C | Non-inverting input of Channel 3 - supports independent DC biasing; compatible with resistor-divider references |
| 12 | IN+ D | Non-inverting input of Channel 4 - allows simultaneous conditioning of four independent low-level signals |
| 13 | IN− D | Inverting input of Channel 4 - matched layout ensures uniform CMRR across all channels |
| 14 | OUT D | Amplified output of Channel 4 - full quad functionality without external interconnect; reduces board area vs discrete op-amps |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 15 mV of VDD+ and VDD– at ±20 µA load - maximizes ADC utilization in 12-bit+ systems |
| Low input bias current | 1 pA typical - eliminates significant offset drift in high-R feedback networks (>1 MΩ) used with photodiodes or pH electrodes |
| Low input voltage noise | 9 nV/√Hz at 1 kHz - improves SNR by ≥6 dB over TLC274 in 100-Hz–10-kHz sensor bandwidths |
| A-grade precision | ≤950 µV max input offset voltage at 25°C - reduces calibration burden in factory-trimmed industrial modules |
| Split- and single-supply support | Fully characterized at ±5 V and 5 V - eliminates redesign when migrating between bench test (dual) and field deployment (single) |
| High CMRR & PSRR | 75 dB min CMRR, 80 dB min PSRR - rejects power rail ripple and common-mode interference in noisy motor-control environments |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level outputs from piezoelectric accelerometers in structural health monitoring nodes. IC Role / Device Role / Timing Role: Signal-conditioning amplifier with ultra-low input bias current and rail-to-rail output driving 16-bit SAR ADC reference range. Use Value: 1-pA IIB prevents signal loss across >10-GΩ sensor impedance; rail-to-rail swing delivers full 0–VDD ADC code utilization. |
Use Scenario: Front-end gain and filtering for ECG electrode signals in portable clinical devices powered by 3.7-V Li-ion cells. IC Role / Device Role / Timing Role: Low-noise, micropower (4.8 mA total quiescent) quad op-amp providing simultaneous lead-I, II, III, and aVR amplification. Use Value: 9 nV/√Hz noise floor preserves QRS complex fidelity; ±2.2-V minimum supply enables operation down to 3.3-V system rail after battery discharge. |
| White Goods Control | ADC Driver for Industrial PLCs |
Use Scenario: Conditioning temperature sensor (NTC) and motor current sense signals in refrigerator control boards. IC Role / Device Role / Timing Role: Quad amplifier performing cold-junction compensation, current shunt amplification, defrost heater control, and door-switch debouncing. Use Value: Single SOIC-14 replaces four discrete SOT-23 op-amps, reducing PCB area by 65% and BOM count by 75%. |
Use Scenario: Driving successive-approximation register (SAR) ADC inputs in programmable logic controller analog input modules. IC Role / Device Role / Timing Role: Rail-to-rail output buffer isolating multiplexed sensor channels from ADC input capacitance during acquisition. Use Value: 3.6-V/µs slew rate settles 12-bit codes within 1.5 µs; 75-dB CMRR rejects 50/60-Hz mains coupling in factory-floor wiring. |
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 supply current (1.3 mA/ch), lower slew rate (1.5 V/µs), wider VDD range (2.7–6 V), but higher input offset (2.5 mV max) | Better suited for ultra-low-power (<10 µA sleep) IoT endpoints; less suitable for >100-kHz signal chains or precision <1-mV offset requirements | Select TLV2444IDR when quiescent current is primary constraint and 12-bit accuracy suffices |
| OPA4340UA/2K5 | Higher precision (125 µV max VIO), lower noise (8 nV/√Hz), but higher cost and only available in SOIC-14 and TSSOP-14 | Preferred for medical-grade biosignal acquisition where sub-0.1% gain linearity and <1-µV offset drift are mandatory | Select OPA4340UA/2K5 when offset drift and long-term stability outweigh cost and power constraints |
Compared with TLV2444IDR and OPA4340UA/2K5, the TLC2274ACDR delivers optimal balance of rail-to-rail output, 1-pA input bias, 950-µV A-grade offset, and SOIC-14 manufacturability - making it the preferred choice for cost-sensitive industrial and appliance designs requiring verified 12-bit performance at moderate speed.
Availability
TLC2274ACDR is available at Aetrix Electronics and suitable for white goods control, battery-powered monitoring systems, transducer interface circuits, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC2274ACDR 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, specializing in analog, embedded processing, and digital signal processing technologies for industrial, automotive, and consumer markets.
The TLC227x family was designed as a precision, low-noise, rail-to-rail output upgrade to the TLC27x series - targeting high-impedance sensor signal conditioning, battery-operated instrumentation, and ADC interface applications demanding low VIO, low IIB, and wide supply flexibility.
FAQ
What is the maximum operating supply voltage for the TLC2274ACDR?
The TLC2274ACDR supports a total supply voltage range of ±2.2 V to ±8 V, meaning the absolute maximum differential voltage between VDD+ and VDD– is 16 V. Operation beyond ±8 V violates Absolute Maximum Ratings and may cause permanent damage. For reliable long-term use, TI specifies ±5 V as the standard dual-supply condition with full electrical characterization.
Does the TLC2274ACDR support single-supply operation?
Yes, the TLC2274ACDR is fully specified for single-supply operation - for example, with VDD+ = 5 V and VDD– = GND. Its input common-mode range extends to the negative rail (GND), and its rail-to-rail output swings within 15 mV of both supply rails, enabling true 0–5-V signal handling without level-shifting circuitry.
What is the input offset voltage specification for the TLC2274ACDR?
The TLC2274ACDR is the A-grade variant, guaranteeing a maximum input offset voltage of 950 µV at TA = 25°C and 1500 µV across the full operating temperature range (–40°C to 125°C). This is tighter than the base TLC2274 (2500 µV max at 25°C), making it suitable for precision DC-coupled applications like strain gauge amplifiers.
How does the TLC2274ACDR compare to the TLC2274CDR?
The TLC2274ACDR differs from the TLC2274CDR solely in input offset voltage grading: the 'A' suffix denotes ≤950 µV max VIO at 25°C, while the 'C' grade allows up to 2500 µV. All other specifications - bandwidth, slew rate, noise, supply current, and pinout - are identical. The A-grade is selected when initial DC accuracy is critical and calibration overhead must be minimized.
Is the TLC2274ACDR RoHS-compliant and halogen-free?
Yes, the TLC2274ACDR (SOIC-14 package, D suffix) is RoHS-compliant and halogen-free per TI's published environmental compliance documentation. It meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) and is rated for lead-free solder reflow profiles up to 260°C peak temperature.
TLC2274ACDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274ACDR FAQ
1.How can I place an order for TLC2274ACDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274ACDR 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 TLC2274ACDR reliable?
The price and inventory of TLC2274ACDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274ACDR is usually 5 days.
3.What payment methods are accepted for TLC2274ACDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274ACDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274ACDR?
TLC2274ACDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274ACDR 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 TLC2274ACDR?
For technical support, including TLC2274ACDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274ACDR requirements.
6.How does Aetrix verify that TLC2274ACDR is sourced from the original manufacturer or authorized distributors?
All TLC2274ACDR 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 TLC2274ACDR meets industry standards.
7.What is the process for return or replacement of TLC2274ACDR?
All TLC2274ACDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274ACDR, 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 TLC2274ACDR part is unused and in its original packaging.
Return procedure for TLC2274ACDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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