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Texas Instruments OPA452FAKTWTG3
- Part No.:
- OPA452FAKTWTG3
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Datasheet:
-
OPA452FAKTWTG3.pdf
- Description:
- IC OPAMP GP 1 CIRC DDPAK/TO263-7
- Quantity:
- Payment:
- Shipping:
Inventory:231
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Product details
Overview
OPA452FAKTWTG3 from Texas Instruments is a high-voltage, high-current operational amplifier in a 7-lead DDPAK (TO-263) surface-mount package, delivering ±50mA continuous output current with ±10V to ±40V supply range and 1.8MHz gain-bandwidth product. It features thermal shutdown, output current limiting, rail-to-rail output swing within 1V, and operates across –40°C to +125°C junction temperature for piezoelectric drivers and transducer applications.
For engineers reviewing the OPA452FAKTWTG3 datasheet, OPA452FAKTWTG3 pinout, OPA452FAKTWTG3 application, or OPA452FAKTWTG3 equivalent, key selection criteria include its unity-gain stability, 80V total supply capability, internal protection architecture, and verified performance over full voltage and temperature ranges - critical for high-reliability industrial power amplification.
Technical Context
The OPA452FAKTWTG3 uses a fully protected monolithic bipolar process with laser-trimmed precision circuitry, enabling stable operation at unity gain while maintaining low input offset drift (±5 µV/°C) and high open-loop gain (105–110 dB). Its internal thermal shutdown flag pin provides real-time junction status via current-level signaling (50 nA normal / 140 µA shutdown).
Unlike many power op amps, it guarantees specifications across the entire ±10V to ±40V supply range - including PSRR (5–45 µV/V), CMRR (76–94 dB), and output voltage swing (V– +5 V to V+ –5.5 V at 50 mA) - without derating, supporting robust design in unbalanced or single-supply configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±10V to ±40V (80V total); supports asymmetric supplies like +70V/–10V without performance loss. |
| Output Current | ±50mA continuous; short-circuit current ±125mA with internal current limiting. |
| Gain-Bandwidth Product | 1.8MHz at ±40V; enables stable unity-gain operation with predictable bandwidth vs load. |
| Slew Rate | +7.2 / –10 V/µs; ensures fast settling (2 µs to 0.1%) for high-slew transient loads. |
| Input Offset Voltage | ±3 mV max at +25°C; ±6 mV over full –40°C to +125°C range - laser-trimmed for precision DC accuracy. |
| Thermal Shutdown Threshold | Junction temperature +160°C; resets automatically at +145°C - flag pin outputs 140 µA during shutdown. |
| Operating Temperature | –40°C to +125°C junction; validated for industrial and embedded systems with extended thermal margins. |
Pinout & Package
OPA452FAKTWTG3 is housed in a 7-lead DDPAK (TO-263) surface-mount package with electrically connected tab tied to V–. The tab must be soldered to PCB copper for thermal management but not used as a current-carrying path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No-connect terminal | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling. |
| 2 (V–) | Negative supply input | Reference for internal biasing; tab is electrically tied to this pin - requires low-impedance thermal pad connection. |
| 3 (VO) | Amplifier output | Capable of ±50mA drive into resistive or capacitive loads; output swing limited to V– +5 V / V+ –5.5 V at full load. |
| 4 (V+) | Positive supply input | Accepts up to +40V; bypass with ≥0.1µF capacitor near pin to suppress supply noise and prevent oscillation. |
| 5 (VIN–) | Inverting input | Differential input with 10¹³ Ω || 6 pF common-mode impedance; clamped to rails with ±0.5V diode limits. |
| 6 (VIN+) | Non-inverting input | High-impedance input (10¹³ Ω || 2 pF differential); supports wide common-mode range (V– +5 V to V+ –0.5 V). |
| 7 (Flag) | Thermal shutdown indicator | Current-source output: ~50 nA normal operation, 140 µA typical during shutdown - directly interfaces with CMOS/HCT logic. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable architecture | Enables direct use in buffer, follower, and low-gain configurations without external compensation. |
| Internal thermal shutdown + current limit | Protects against sustained overload without external circuitry; flag pin enables system-level fault detection and recovery. |
| Guaranteed specs over full supply range | Eliminates need for voltage-specific derating - PSRR, CMRR, and output swing remain valid from ±10V to ±40V. |
| Laser-trimmed input offset | Ensures low DC error (±3 mV typ) and minimal drift (±5 µV/°C) for precision analog signal chains. |
| Wide output voltage swing | Delivers V– +4.0 V to V+ –4.0 V at 50 mA load - maximizes dynamic range in high-voltage applications. |
Applications
| Piezoelectric Actuator Driver | High-Voltage Test Equipment |
|---|---|
Use Scenario: Driving piezoelectric stacks requiring high-voltage, low-distortion excitation signals up to ±35V with fast step response. IC Role / Device Role / Timing Role: High-current, high-slew op amp configured as non-inverting amplifier or voltage follower to deliver precise charge/displacement control. Use Value: 1.8MHz GBW and +7.2 V/µs slew rate enable sub-µs settling for closed-loop positioning; thermal flag prevents damage during mechanical stall conditions. | Use Scenario: Output stage in automated test equipment generating calibrated ±30V, 50mA stimulus signals for DUT biasing and functional verification. IC Role / Device Role / Timing Role: Precision power amplifier providing programmable DC/AC output with guaranteed linearity and load regulation across full voltage range. Use Value: ±6 mV max input offset and 105 dB open-loop gain ensure <0.01% gain error; rail-swing capability minimizes headroom loss in ±40V supply systems. |
| Audio Power Amplifier Stage | Servo Motor Driver Interface |
Use Scenario: Final gain stage in Class-AB audio amplifiers delivering clean 30Vp-p signals into 600Ω loads with ultra-low THD+N (0.0008% at 1kHz). IC Role / Device Role / Timing Role: High-fidelity voltage amplifier driving reactive speaker loads with controlled phase margin and minimal overshoot. Use Value: Optimized small-signal step response (2 µs to 0.1%) and 21 nV/√Hz input noise preserve signal integrity; internal protection avoids latch-up during clipping. | Use Scenario: Position loop amplifier in industrial servo drives supplying ±50mA to voice coil actuators or torque motor windings. IC Role / Device Role / Timing Role: High-stability transconductance amplifier converting DAC output to high-voltage current command with fast transient recovery. Use Value: Overload recovery time of 1 µs ensures rapid correction after encoder misalignment; thermal flag enables coordinated system shutdown before motor winding damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA453FAKTWT | 7.5MHz GBW, optimized for G ≥ 5; higher slew rate (+23/–38 V/µs); not unity-gain stable. | Better suited for fixed-gain instrumentation or high-speed signal conditioning where gain > 5 is acceptable. | Select OPA453FAKTWT only when closed-loop gain is ≥5 and faster settling (<1 µs) is required - not a drop-in replacement for unity-gain circuits. |
| OPA547T | Higher output current (200mA), integrated current limit programming, disable pin; 1.6MHz GBW; TO-220-11 package. | Designed for programmable current sources and active load control where adjustable compliance and enable/disable sequencing are needed. | Choose OPA547T when system-level current limiting, output disable, or >50mA drive is mandatory - requires PCB layout change due to different pin count and package. |
Compared with OPA452FAKTWTG3, the OPA453FAKTWT trades unity-gain stability for higher speed in fixed-gain stages, while the OPA547T adds programmability and current headroom at the cost of complexity and footprint - making OPA452FAKTWTG3 optimal for general-purpose, thermally monitored high-voltage amplification.
Availability
OPA452FAKTWTG3 is available at Aetrix Electronics and suitable for piezoelectric actuator drivers, high-voltage test equipment, and servo motor interface circuits requiring stable component supply, RoHS-compliant packaging, and extended temperature support.
Supply support for OPA452FAKTWTG3 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 amplifiers and high-reliability power ICs.
The OPA452 belongs to TI's high-voltage operational amplifier product line, engineered for industrial motion control, test instrumentation, and energy-efficient transducer interfaces demanding robustness, accuracy, and thermal intelligence.
FAQ
What is the maximum continuous output current specification for OPA452FAKTWTG3?
The OPA452FAKTWTG3 delivers ±50mA continuous output current into resistive loads, with internal current limiting set to ±125mA short-circuit level. This rating holds across the full –40°C to +125°C junction temperature range and ±10V to ±40V supply voltages, as verified in the SBOS127C datasheet under Electrical Characteristics.
Does OPA452FAKTWTG3 require external compensation for unity-gain stability?
No, the OPA452FAKTWTG3 is internally compensated for unity-gain stability and operates reliably in buffer, follower, and G = 1 configurations without external components. Its 1.8MHz gain-bandwidth product and phase margin are characterized and guaranteed across all operating conditions per the official TI datasheet.
How is the Flag pin on OPA452FAKTWTG3 used in system-level thermal monitoring?
The Flag pin on OPA452FAKTWTG3 outputs ~50nA during normal operation and increases to 140µA (typical) when thermal shutdown activates at +160°C junction temperature. This current-level signal can be converted to logic-level voltage using a pull-up resistor, enabling direct interfacing with CMOS or HCT logic for real-time fault detection and system response.
What package type and thermal characteristics apply to OPA452FAKTWTG3?
OPA452FAKTWTG3 uses a 7-lead DDPAK (TO-263) surface-mount package with the metal tab electrically connected to V–. Its junction-to-case thermal resistance (θJC) is 3°C/W, and proper soldering of the tab to ≥2 in² of 1oz copper reduces θJA to ~20°C/W - critical for sustaining 50mA output at elevated ambient temperatures.
Can OPA452FAKTWTG3 operate from an asymmetric power supply, such as +70V and –10V?
Yes, OPA452FAKTWTG3 supports asymmetric supplies with total voltage up to 80V (e.g., +70V/–10V). Its specifications - including output swing, PSRR, and CMRR - are guaranteed across ±10V to ±40V, and the device remains functional with ≥20V total supply difference. Input common-mode range extends to (V–)+5 V and (V+)–0.5 V, accommodating such configurations.
OPA452FAKTWTG3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 1.8 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 7 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 5.5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 20 V
- Voltage - Supply Span (Max):
- 80 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-7)
OPA452FAKTWTG3 FAQ
1.How can I place an order for OPA452FAKTWTG3 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA452FAKTWTG3 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 OPA452FAKTWTG3 reliable?
The price and inventory of OPA452FAKTWTG3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA452FAKTWTG3 is usually 5 days.
3.What payment methods are accepted for OPA452FAKTWTG3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA452FAKTWTG3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA452FAKTWTG3?
OPA452FAKTWTG3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA452FAKTWTG3 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 OPA452FAKTWTG3?
For technical support, including OPA452FAKTWTG3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA452FAKTWTG3 requirements.
6.How does Aetrix verify that OPA452FAKTWTG3 is sourced from the original manufacturer or authorized distributors?
All OPA452FAKTWTG3 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 OPA452FAKTWTG3 meets industry standards.
7.What is the process for return or replacement of OPA452FAKTWTG3?
All OPA452FAKTWTG3 units undergo pre-shipment inspection (PSI). If there is an issue with OPA452FAKTWTG3, 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 OPA452FAKTWTG3 part is unused and in its original packaging.
Return procedure for OPA452FAKTWTG3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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