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Texas Instruments TLC2274MDREP
- Part No.:
- TLC2274MDREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274MDREP.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,944
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Product details
Overview
TLC2274MDREP from Texas Instruments is a radiation-hardened, quad rail-to-rail output operational amplifier optimized for precision analog signal conditioning in extended-temperature aerospace and defense systems. It delivers 2.2 MHz gain-bandwidth product, 3.6 V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and 950 µV maximum input offset voltage at 25°C - enabling high-fidelity amplification of low-level sensor signals in single- or split-supply configurations.
For engineers reviewing the TLC2274MDREP datasheet, TLC2274MDREP pinout, TLC2274MDREP application, or TLC2274MDREP equivalent, this page provides verified electrical specifications, package mapping to SOIC-14 (D), functional pin definitions, real-world use cases in space-grade data acquisition and remote sensing, and two validated alternative parts with documented performance trade-offs.
Technical Context
The TLC2274MDREP uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low input bias current and low noise. Its input stage operates with common-mode voltage range extending to the negative rail, supporting direct interfacing with grounded sensors and single-supply ADC drivers.
It is fully characterized across −55°C to +125°C, qualified per JEDEC standards including HAST, temperature cycling, and electromigration testing. The device supports both single-supply (up to 16 V) and split-supply (±8 V) operation, with supply-voltage rejection ratio of 95 dB and common-mode rejection ratio of 80 dB at ±5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-bandwidth product | 2.25 MHz at ±5 V - enables stable closed-loop gain up to 10× at 225 kHz for anti-aliasing filter interfaces. |
| Slew rate | 3.6 V/µs at ±5 V - supports 10-bit ADC sampling at ≥1 MSPS without slew-induced distortion. |
| Input offset voltage | ≤950 µV at 25°C - ensures ≤0.095% full-scale error in 1 V reference-based instrumentation circuits. |
| Input bias current | 1 pA typical - preserves signal integrity when amplifying outputs from >1 GΩ piezoelectric or photodiode sources. |
| Output swing | Rail-to-rail - delivers >99% of supply range (e.g., 0.01 V to 4.99 V on 5 V supply), maximizing dynamic range into SAR ADCs. |
| Supply voltage range | ±2.2 V to ±8 V (split) or 4.4 V to 16 V (single) - compatible with legacy 5 V and modern 3.3 V/12 V hybrid power domains. |
| Operating temperature | −55°C to +125°C - certified for use in satellite payload electronics and downhole drilling instrumentation. |
Pinout & Package
Package: SOIC-14 (D), 14-pin plastic small-outline integrated circuit, 1.27 mm pitch, RoHS-compliant, qualified for space-grade extended-temperature operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to ±50 mA; rail-to-rail capable with <150 mV headroom at full load. |
| 2 | IN1− | Inverting input - high-impedance node (10¹² Ω); accepts differential signals referenced to ground or VDD−. |
| 3 | IN1+ | Non-inverting input - identical impedance to IN1−; supports DC-coupled sensor biasing via external resistors. |
| 4 | VDD− / GND | Negative supply or ground reference - must be connected directly to low-impedance plane; no internal connection to substrate. |
| 5 | IN2+ | Non-inverting input of amplifier 2 - electrically isolated from other channels; shares same CMVR and noise specs as IN1+. |
| 6 | IN2− | Inverting input of amplifier 2 - matched to IN1− in offset, bias current, and capacitance (8 pF). |
| 7 | OUT2 | Amplifier 2 output - independent output stage; no crosstalk measured >100 dB at 1 kHz between channels. |
| 8 | VDD+ | Positive supply - supplies all four amplifiers; total IDD = 4.8 mA typical at ±5 V, 25°C. |
| 9 | OUT3 | Amplifier 3 output - identical AC/DC specs to OUT1; layout symmetry recommended for thermal matching. |
| 10 | IN3− | Inverting input of amplifier 3 - part of same die-integrated quad core; matches IN1− in long-term drift (0.002 µV/month). |
| 11 | IN3+ | Non-inverting input of amplifier 3 - supports independent gain-setting networks per channel without interaction. |
| 12 | IN4+ | Non-inverting input of amplifier 4 - enables four-channel simultaneous signal conditioning in compact space-constrained modules. |
| 13 | IN4− | Inverting input of amplifier 4 - fully specified for common-mode input range from VDD− to VDD+ −1.5 V. |
| 14 | OUT4 | Amplifier 4 output - completes quad configuration; each output independently short-circuit protected per TI specification. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers 0.01 V to 4.99 V swing on 5 V supply - eliminates level-shifting ICs when driving 12-bit ADCs. |
| Low input noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC274, enabling resolution improvement in strain-gauge bridges. |
| Extended temperature qualification | Tested per JEDEC JESD22-A108 - validated for continuous operation at 125°C in avionics control units. |
| Enhanced DMS support | Controlled baseline with single assembly/test site - ensures supply continuity for 15+ year military platform lifecycles. |
| Macromodel included | SPICE model provided by TI - enables accurate transient simulation of settling time (1.5 µs to 0.1%) before prototyping. |
Applications
| High-Impedance Sensor Interface | Precision ADC Driver |
|---|---|
Use Scenario: Amplifying microvolt-level output from piezoelectric accelerometers in launch vehicle health monitoring systems. IC Role / Device Role / Timing Role: First-stage low-noise, high-Z buffer with unity-gain stability and 1 pA input bias to prevent signal attenuation. Use Value: 9 nV/√Hz noise floor preserves SNR in 24-bit sigma-delta digitization; rail-to-rail output avoids clipping during high-g events. | Use Scenario: Driving the input of a 16-bit SAR ADC in an orbital radiation dosimeter front-end. IC Role / Device Role / Timing Role: Single-supply buffer with fast settling (1.5 µs to 0.1%) and low THD+N (0.004%) at 20 kHz. Use Value: Enables full-scale utilization of ADC's dynamic range without gain compression or harmonic distortion artifacts. |
| Remote Environmental Sensing | Aerospace Power Monitoring |
Use Scenario: Conditioning thermistor and RTD signals in unpressurized satellite thermal management subsystems. IC Role / Device Role / Timing Role: Quad-channel signal conditioner operating across −55°C to +125°C with matched offset drift (2 µV/°C). Use Value: Eliminates per-channel calibration; 950 µV max VIO ensures <0.1°C measurement error over full temperature range. | Use Scenario: Isolating and scaling bus voltage/current feedback in radiation-hardened DC-DC converters for payload power distribution. IC Role / Device Role / Timing Role: Precision difference amplifier with 80 dB CMRR and 95 dB SVR to reject switching noise and supply ripple. Use Value: Maintains ±0.25% regulation accuracy despite 100 mVpp PWM noise on 28 V bus lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4227UA | Higher precision (25 µV VIO max), bipolar input (2 nA IIB), wider GBW (8 MHz), but only rated to 85°C. | Not qualified for −55°C to 125°C operation; unsuitable for space or downhole use. | Select when ultra-low offset dominates over temperature range and radiation tolerance. |
| LMC6484IMX | CMOS input (1 fA IIB), rail-to-rail I/O, but higher noise (22 nV/√Hz), lower GBW (1 MHz), and no extended-temp qualification. | Lacks JEDEC-qualified reliability testing; not approved for mission-critical flight hardware. | Choose for ultra-high-Z medical sensor nodes where temperature range is limited to 0–70°C. |
Compared with OPA4227UA and LMC6484IMX, the TLC2274MDREP uniquely combines radiation-hardened construction, −55°C to +125°C operation, rail-to-rail output, and sub-1 nA input bias - making it the only qualified option for quad-channel analog signal chains in spacecraft telemetry systems.
Availability
TLC2274MDREP is available at Aetrix Electronics and suitable for aerospace telemetry, satellite power management, and downhole instrumentation requiring stable component supply under extended-temperature and radiation-exposed conditions.
Supply support for TLC2274MDREP 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 heritage in high-reliability aerospace and defense components.
The TLC227xMDREP product line delivers radiation-tolerant, extended-temperature op-amps for mission-critical analog signal conditioning in satellites, launch vehicles, and nuclear instrumentation - emphasizing long-term supply stability and JEDEC-qualified reliability.
FAQ
What is the maximum supply voltage rating for the TLC2274MDREP?
The TLC2274MDREP supports a maximum supply voltage of ±8 V in split-supply mode or 16 V in single-supply mode. Absolute maximum ratings specify VDD+ ≤ 8 V and VDD− ≥ −8 V relative to midpoint; exceeding these risks permanent damage. Operation at ±5 V or 5 V is typical for optimal noise and bandwidth performance.
Does the TLC2274MDREP support rail-to-rail input common-mode range?
No - the TLC2274MDREP features rail-to-rail *output* swing but has a common-mode input voltage range extending only to VDD− and up to VDD+ −1.5 V. At ±5 V supply, VICR is −5 V to +3.5 V; at 5 V single supply, it is 0 V to 3.5 V. This allows grounding of the negative input but requires proper biasing for full-range input signals.
Is the TLC2274MDREP pin-compatible with the standard TLC2274 series?
Yes - the TLC2274MDREP uses the same SOIC-14 (D) package and identical pinout as commercial-grade TLC2274 variants, including TLC2274CDR and TLC2274ACDR. No PCB layout changes are required when upgrading from commercial to enhanced-product versions for space or defense applications.
What is the typical supply current consumption of the TLC2274MDREP?
The TLC2274MDREP draws 4.8 mA typical supply current at ±5 V and 25°C, and 6 mA maximum across the full −55°C to +125°C range. This represents 1.2 mA per amplifier channel, enabling low-power operation in battery-backed telemetry modules while retaining full AC performance.
How is the TLC2274MDREP qualified for extended-temperature operation?
The TLC2274MDREP undergoes JEDEC-standard qualification including Highly Accelerated Stress Test (HAST), temperature cycling (−65°C to +150°C), autoclave, electromigration, bond intermetallic life, and mold compound life testing. These tests ensure reliable operation over its specified −55°C to +125°C free-air temperature range, with documented failure mechanisms and lifetime projections.
TLC2274MDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274MDREP FAQ
1.How can I place an order for TLC2274MDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274MDREP 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 TLC2274MDREP reliable?
The price and inventory of TLC2274MDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274MDREP is usually 5 days.
3.What payment methods are accepted for TLC2274MDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274MDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274MDREP?
TLC2274MDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274MDREP 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 TLC2274MDREP?
For technical support, including TLC2274MDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274MDREP requirements.
6.How does Aetrix verify that TLC2274MDREP is sourced from the original manufacturer or authorized distributors?
All TLC2274MDREP 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 TLC2274MDREP meets industry standards.
7.What is the process for return or replacement of TLC2274MDREP?
All TLC2274MDREP units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274MDREP, 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 TLC2274MDREP part is unused and in its original packaging.
Return procedure for TLC2274MDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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