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Texas Instruments TLC2274MDR
- Part No.:
- TLC2274MDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274MDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,109
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Product details
Overview
TLC2274MDR 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 TLC2274MDR datasheet, TLC2274MDR pinout, TLC2274MDR application, or TLC2274MDR equivalent, key selection considerations include its 1-pA typical input bias current, 950-µV maximum input offset voltage (A-grade), −55°C to 125°C military temperature range, SOIC-14 package, and compatibility with low-voltage, low-noise transducer interfaces requiring stable DC accuracy and wide dynamic range.
Technical Context
The TLC2274MDR uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typ) and low input offset voltage (≤950 µV). Its input stage operates with common-mode voltage extending to the negative rail, supporting single-supply configurations down to 4.4 V total supply.
It features internal compensation for unity-gain stability with 100-pF capacitive loads, exhibits 75-dB typical CMRR and 95-dB typical PSRR at 25°C, and maintains ≥20 V/mV large-signal voltage gain across −55°C to 125°C for precision closed-loop designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V (4.4 V to 16 V total); supports industrial and military single/dual supplies |
| Gain-Bandwidth Product | 2.25 MHz (at ±5 V); enables stable unity-gain buffering up to ~2 MHz |
| Slew Rate | 3.6 V/µs (typ at ±5 V); supports <1.5 µs settling to 0.1% for 4.6-V step |
| Input Offset Voltage | ≤950 µV (max at 25°C, A-grade); ensures ≤1 mV total error in 12-bit 5-V full-scale systems |
| Input Bias Current | 1 pA (typ); minimizes voltage error across >100-MΩ source impedances |
| Input Voltage Noise | 9 nV/√Hz (at 1 kHz); critical for low-level piezoelectric or strain gauge signal amplification |
| Operating Temperature | −55°C to +125°C (M-grade); qualified for aerospace, defense, and under-hood automotive use |
Pinout & Package
Package: SOIC-14 (NOM: 3.91 mm × 8.65 mm), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplified output of Channel 1; rail-to-rail swing supports direct ADC driving |
| 2 | IN1− | Inverting input of Channel 1; high-impedance node (10¹² Ω) for precision feedback networks |
| 3 | IN1+ | Non-inverting input of Channel 1; common-mode range includes VDD− (negative rail) |
| 4 | VDD− | Negative supply terminal; referenced to system ground in single-supply mode |
| 5 | IN2+ | Non-inverting input of Channel 2; electrically isolated from other channels |
| 6 | IN2− | Inverting input of Channel 2; matched to IN1− for dual-channel instrumentation |
| 7 | OUT2 | Amplified output of Channel 2; independent output stage with no crosstalk |
| 8 | NC | No connection; not internally bonded - must be left floating or grounded per layout guidelines |
| 9 | IN3+ | Non-inverting input of Channel 3; enables three-channel simultaneous sensing |
| 10 | IN3− | Inverting input of Channel 3; supports differential configuration with external resistor network |
| 11 | VDD+ | Positive supply terminal; decoupling capacitor required within 1 cm for stability |
| 12 | IN4− | Inverting input of Channel 4; fully specified across full temperature range |
| 13 | IN4+ | Non-inverting input of Channel 4; identical AC/DC specs as Channels 1–3 |
| 14 | OUT4 | Amplified output of Channel 4; capable of sourcing/sinking ±50 mA peak |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 15 mV of both rails at ±5 V, enabling full utilization of 5-V ADC input ranges |
| Low input bias current (1 pA) | Reduces voltage error to <10 µV across 10-MΩ sensor sources, critical for pH and piezo sensors |
| 950-µV max input offset (A-grade) | Guarantees ≤0.02% gain error in unity-gain buffer configurations at room temperature |
| 2.2-MHz bandwidth at low power | Delivers 12-bit settling performance for 100-kSPS data acquisition without external compensation |
| Military temperature qualification | Validated operation from −55°C to +125°C per MIL-PRF-38535 requirements |
Applications
| Transducer Signal Conditioning | Battery-Powered Sensor Nodes |
|---|---|
Use Scenario: Amplifying low-level outputs from piezoresistive pressure sensors in industrial process control. IC Role / Device Role / Timing Role: Precision non-inverting amplifier with gain = 100, rejecting common-mode noise on long cables. Use Value: 1-pA input bias prevents drift in high-Z sensor bridges; rail-to-rail output maximizes SNR into 12-bit SAR ADC. |
Use Scenario: Front-end signal chain in portable environmental monitors measuring CO₂, humidity, and VOCs. IC Role / Device Role / Timing Role: Quad-channel buffer and level shifter for analog sensor outputs prior to multiplexed ADC sampling. Use Value: 4.4-mA quiescent current per amplifier enables >1-year battery life on coin cells; −55°C to 125°C rating covers outdoor deployment extremes. |
| Industrial Analog I/O Modules | Avionics Sensor Interfaces |
Use Scenario: Isolated analog input channel in PLC backplane modules accepting 4–20 mA and ±10 V field signals. IC Role / Device Role / Timing Role: Rail-to-rail output driver for DAC reconstruction filter and anti-aliasing stage. Use Value: 75-dB CMRR rejects common-mode noise from motor drives; 95-dB PSRR suppresses supply ripple from shared 24-V bus. |
Use Scenario: Signal conditioning for accelerometers and gyroscopes in flight control computers. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier in inertial measurement unit (IMU) analog front end. Use Value: 9 nV/√Hz noise floor preserves resolution of micro-g vibration signals; M-grade temp range meets DO-160 Section 22 Category D requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4336UA | Lower quiescent current (22 µA/ch), lower GBW (2 MHz), no M-grade temp option | Better suited for ultra-low-power wake-on-event sensor nodes; lacks military qualification | Select when sub-100-µA total supply current is mandatory and −55°C operation is unnecessary |
| LMV4342MTX/NOPB | Higher slew rate (10 V/µs), higher noise (22 nV/√Hz), commercial temp only (−40°C to 125°C) | Preferred for high-speed active filters but unsuitable for precision DC-coupled transducer amps | Choose for bandwidth-critical applications where offset drift and noise are secondary concerns |
Compared with OPA4336UA and LMV4342MTX/NOPB, the TLC2274MDR uniquely combines military temperature range, 1-pA input bias, and rail-to-rail output in a single SOIC-14 package - making it irreplaceable for high-reliability, low-drift analog signal chains where environmental robustness and DC precision are co-primary requirements.
Availability
TLC2274MDR is available at Aetrix Electronics and suitable for industrial process control, avionics subsystems, and battery-powered environmental monitoring requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for TLC2274MDR 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 communications markets.
The TLC227x family was engineered specifically for precision, low-power, rail-to-rail signal conditioning in harsh environments - targeting transducer interfaces, portable instrumentation, and military-grade analog front ends where DC accuracy and temperature stability are non-negotiable.
FAQ
What is the maximum supply voltage for TLC2274MDR?
The TLC2274MDR supports a total supply voltage range of 4.4 V to 16 V, corresponding to ±2.2 V to ±8 V in split-supply configurations. Absolute maximum ratings specify ±8 V on VDD+ and VDD− terminals; operation beyond this risks permanent damage. The device is fully characterized from ±2.2 V to ±8 V across its −55°C to +125°C operating range, with recommended derating above ±7 V for long-term reliability.
Does TLC2274MDR support true rail-to-rail input?
No, the TLC2274MDR provides rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (VDD−) but stops 1.5 V below the positive rail (VDD+) - e.g., at ±5 V supply, VICR spans −5 V to +3.5 V. This allows single-supply operation with inputs near ground but requires level-shifting for signals approaching VDD+.
What is the input offset voltage specification for TLC2274MDR?
The TLC2274MDR is an "M-grade" variant of the TLC2274A family, specifying a maximum input offset voltage of 950 µV at TA = 25°C. Over the full −55°C to +125°C range, the limit increases to 1500 µV. This guaranteed DC accuracy enables high-resolution measurements without trimming, especially in low-gain sensor amplifier stages where offset directly impacts system zero-point error.
Can TLC2274MDR drive capacitive loads directly?
Yes, the TLC2274MDR is unity-gain stable with capacitive loads up to 100 pF, as verified in the datasheet's typical characteristics (Figure 25). For loads exceeding 100 pF, external isolation resistance (e.g., 100 Ω in series with the output) is recommended to maintain phase margin >50° and prevent peaking or oscillation - particularly critical in multi-channel PCB layouts where inter-trace capacitance may accumulate.
Is TLC2274MDR pin-compatible with standard TLC2274 variants?
Yes, TLC2274MDR shares identical pinout, footprint, and electrical behavior with all TLC2274x variants in SOIC-14 packages (e.g., TLC2274CDR, TLC2274IDR). The "M" suffix denotes military-grade screening (MIL-PRF-38535), and "D" indicates SOIC packaging - no pin function or timing differences exist. System-level drop-in replacement is supported provided thermal and supply design margins accommodate the higher max IDD (6 mA vs. 4.4 mA typical).
TLC2274MDR 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:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274MDR FAQ
1.How can I place an order for TLC2274MDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274MDR 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 TLC2274MDR reliable?
The price and inventory of TLC2274MDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274MDR is usually 5 days.
3.What payment methods are accepted for TLC2274MDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274MDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274MDR?
TLC2274MDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274MDR 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 TLC2274MDR?
For technical support, including TLC2274MDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274MDR requirements.
6.How does Aetrix verify that TLC2274MDR is sourced from the original manufacturer or authorized distributors?
All TLC2274MDR 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 TLC2274MDR meets industry standards.
7.What is the process for return or replacement of TLC2274MDR?
All TLC2274MDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274MDR, 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 TLC2274MDR part is unused and in its original packaging.
Return procedure for TLC2274MDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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