Overview
The OPA455IDDAR, produced by Texas Instruments, is a high-voltage, wide-bandwidth operational amplifier. This device is designed to operate with a wide power-supply range of ±6 V to ±75 V or a single supply of 12 V to 150 V, making it versatile for various high-voltage applications. The OPA455 is unity-gain stable, featuring a gain-bandwidth product of 6.5 MHz and a high slew rate of 32 V/µs. It is particularly suited for applications requiring high output current drive, up to ±45 mA, and offers excellent accuracy and wide output swing without phase-inversion problems common in similar amplifiers.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | ±6 V to ±75 V | 12 V to 150 V | V | |
| Output Current | ±45 | mA | ||
| Gain-Bandwidth Product | 6.5 | MHz | ||
| Slew Rate | 32 | V/µs | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Input Offset Voltage | ±0.2 | ±3.4 | mV | |
| Input Bias Current | ±30 | ±100 | pA | |
| Quiescent Current | 3.2 | 3.7 | mA | |
| Package Type | HSOIC (DDA) 8-pin |
Key Features
- Wide power-supply range: ±6 V to ±75 V or 12 V to 150 V
- High-output load drive: up to ±45 mA
- Current limit protection and thermal protection
- Status flag for overtemperature or overcurrent conditions
- Enable-disable function to turn off the output stage and reduce power consumption
- No phase-inversion problems
- Unity-gain stable with a gain-bandwidth product of 6.5 MHz
- High slew rate of 32 V/µs
- Wide temperature range: -40°C to +85°C
Applications
- Semiconductor test and manufacturing
- Optical modules
- Lab and field instrumentation
- Multiparameter patient monitors
- Display panels for PCs and notebooks
- High-voltage piezo driving
- Avalanche photodiode biasing
- High-voltage Howland current pump or voltage output stages
Q & A
- What is the maximum supply voltage for the OPA455?
The OPA455 can operate with supply voltages up to ±75 V or a single supply of 150 V.
- What is the maximum output current of the OPA455?
The OPA455 can deliver up to ±45 mA of output current.
- What is the gain-bandwidth product of the OPA455?
The gain-bandwidth product of the OPA455 is 6.5 MHz.
- What is the slew rate of the OPA455?
The slew rate of the OPA455 is 32 V/µs.
- Does the OPA455 have thermal protection?
Yes, the OPA455 features thermal protection and a status flag for overtemperature conditions.
- Can the output of the OPA455 be disabled?
Yes, the OPA455 has an enable-disable function that allows the output stage to be turned off to reduce power consumption.
- What package type is the OPA455 available in?
The OPA455 is available in an 8-pin HSOIC (DDA) package.
- What is the operating temperature range of the OPA455?
The operating temperature range of the OPA455 is -40°C to +85°C.
- Does the OPA455 have input overvoltage protection?
Yes, the OPA455 features input overvoltage protection.
- What are some typical applications of the OPA455?
The OPA455 is used in semiconductor test and manufacturing, optical modules, lab and field instrumentation, multiparameter patient monitors, and display panels for PCs and notebooks.
