Overview
The THS3091DR, produced by Texas Instruments, is a high-voltage, low-distortion, high-speed current-feedback operational amplifier. This device is designed to operate over a wide supply range of ±5 V to ±16 V, making it suitable for applications requiring large, linear output signals. The THS3091DR is available in an 8-pin SOIC (DDA) PowerPAD™ package and an 8-pin HVSSOP (DGN) package. It is an excellent choice for applications such as pin drivers, power-FET drivers, and arbitrary waveform generators due to its high slew rate, wide bandwidth, and high output current drive capabilities.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | ±5 V to ±16 V | V |
| Harmonic Distortion (HD2 at 10 MHz, RL = 1 kΩ) | -84 dBc | dBc |
| Harmonic Distortion (HD3 at 10 MHz, RL = 1 kΩ) | -99 dBc | dBc |
| Noninverting Current Noise | 15 pA/√Hz | pA/√Hz |
| Inverting Current Noise | 14 pA/√Hz | pA/√Hz |
| Voltage Noise | 1.1 nV/√Hz | nV/√Hz |
| Slew Rate (G = 5, VO = 20 VPP) | 6000 V/μs | V/μs |
| Bandwidth (G = 2, RL = 100 Ω) | 305 MHz | MHz |
| Output Current Drive | ±310 mA | mA |
| Package Type | SOIC (DDA), HVSSOP (DGN) | |
| Pins | 8 |
Key Features
- Low Distortion: 84-dBc HD2 and 99-dBc HD3 at 10 MHz with RL = 1 kΩ.
- Low Noise: 15-pA/√Hz noninverting current noise, 14-pA/√Hz inverting current noise, and 1.1-nV/√Hz voltage noise.
- High Slew Rate: 6000 V/μs (G = 5, VO = 20 VPP).
- Wide Bandwidth: 305 MHz (G = 2, RL = 100 Ω).
- High Output Current Drive: ±310 mA.
- Wide Supply Range: ±5 V to ±16 V.
- Ability to Handle Large Voltage Swings: Drives into low-resistance and high-capacitance loads while maintaining good settling time performance.
Applications
- High-Voltage Arbitrary Waveform Generators: Ideal for generating high-voltage, high-frequency signals.
- Pin Drivers: Suitable for driving high-capacitive loads and maintaining good settling time performance.
- Power-FET Drivers: Drives power FETs efficiently with high output current and voltage swing capabilities.
- Source Measurement Units (SMU): Used in source measurement applications requiring high accuracy and low distortion.
- High Capacitive Load Piezo Element Drivers: Effective in driving piezo elements and other high-capacitive loads.
Q & A
- What is the operating temperature range of the THS3091DR?
The operating temperature range is -40°C to 85°C.
- What are the typical harmonic distortion values for the THS3091DR?
The THS3091DR has a harmonic distortion of -84 dBc for HD2 and -99 dBc for HD3 at 10 MHz with RL = 1 kΩ.
- What is the slew rate of the THS3091DR?
The slew rate is 6000 V/μs (G = 5, VO = 20 VPP).
- What is the bandwidth of the THS3091DR?
The bandwidth is 305 MHz (G = 2, RL = 100 Ω).
- What is the output current drive capability of the THS3091DR?
The output current drive is ±310 mA.
- What are the package options for the THS3091DR?
The THS3091DR is available in 8-pin SOIC (DDA) PowerPAD™ and 8-pin HVSSOP (DGN) packages.
- Does the THS3091DR have a power-down feature?
No, the power-down feature is available only in the THS3095 model.
- What are some common applications for the THS3091DR?
Common applications include high-voltage arbitrary waveform generators, pin drivers, power-FET drivers, source measurement units, and high capacitive load piezo element drivers.
- What is the supply voltage range for the THS3091DR?
The supply voltage range is ±5 V to ±16 V.
- How does the THS3091DR handle large voltage swings and high-capacitive loads?
The device is designed to handle large voltage swings and drive into low-resistance and high-capacitance loads while maintaining good settling time performance.
