Overview
The THS3091D, produced by Texas Instruments, is a high-voltage, low-distortion, current-feedback operational amplifier. This device is part of the THS309x series, which includes the THS3091 and THS3095 models. The THS3091D 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. It is particularly useful in 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 | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | |
| Pins | 8 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | ±5 V to ±16 V | |
| Slew Rate | 6000 V/µs (G = 5, V_O = 20 V PP) | |
| Bandwidth | 305 MHz (G = 2, R_L = 100 Ω) | |
| Output Current Drive | ±310 mA | |
| 2nd Harmonic Distortion (HD2) | 84 dBc at 10 MHz, R_L = 1 kΩ | |
| 3rd Harmonic Distortion (HD3) | 99 dBc at 10 MHz, R_L = 1 kΩ | |
| Noninverting Current Noise | 15 pA/√Hz | |
| Inverting Current Noise | 14 pA/√Hz | |
| Voltage Noise | 1.1 nV/√Hz | |
| Quiescent Current per Channel | 9.5 mA |
Key Features
- Low Distortion: 84-dBc HD2 and 99-dBc HD3 at 10 MHz, R_L = 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, V_O = 20 V PP).
- Wide Bandwidth: 305 MHz (G = 2, R_L = 100 Ω).
- High Output Current Drive: ±310 mA.
- Wide Supply Range: ±5 V to ±16 V.
- Power-Down Feature (THS3095 only): Reduces quiescent current from 9.5 mA to 500 µA.
Applications
- Pin Drivers: Suitable for driving large voltage swings into low-resistance and high-capacitance loads while maintaining good settling time performance.
- Power-FET Drivers: Ideal for applications requiring high output current drive and wide bandwidth.
- Arbitrary Waveform Generators: Excellent choice for generating high-voltage, low-distortion signals.
Q & A
- What is the operating temperature range of the THS3091D?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the THS3091D?
The supply voltage range is ±5 V to ±16 V.
- What is the slew rate of the THS3091D?
The slew rate is 6000 V/µs (G = 5, V_O = 20 V PP).
- What is the bandwidth of the THS3091D?
The bandwidth is 305 MHz (G = 2, R_L = 100 Ω).
- What is the output current drive capability of the THS3091D?
The output current drive is ±310 mA.
- Does the THS3091D have a power-down feature?
No, the power-down feature is available only in the THS3095 model.
- What are the typical harmonic distortion values for the THS3091D?
The 2nd harmonic distortion (HD2) is 84 dBc and the 3rd harmonic distortion (HD3) is 99 dBc at 10 MHz, R_L = 1 kΩ.
- What is the noise performance of the THS3091D?
The noninverting current noise is 15 pA/√Hz, inverting current noise is 14 pA/√Hz, and voltage noise is 1.1 nV/√Hz.
- What are the common applications of the THS3091D?
Common applications include pin drivers, power-FET drivers, and arbitrary waveform generators.
- What package types are available for the THS3091D?
The THS3091D is available in SOIC (D) and HVSSOP (DGN) packages.
