Overview
The THS3091DDA is a high-voltage, low-distortion, current-feedback operational amplifier produced by Texas Instruments. This device is designed to operate over a wide supply range, making it suitable for various high-speed and high-voltage applications. The THS3091DDA is particularly noted for its high slew rate, low noise, and wide bandwidth, which are critical for applications requiring large, linear output signals.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Amplifier Type | Current Feedback |
| Mounting Type | Surface Mount |
| Package Type | 8-Pin SOIC (HSOIC) |
| Power Supply Type | Dual, Single (±5 V to ±16 V, 10 V to 30 V) |
| Number of Channels per Chip | 1 |
| Pin Count | 8 |
| Typical Slew Rate | 6000 V/µs (G = 5, VO = 20 V PP), 1900 V/µs (typical) |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Rail to Rail | No |
| Typical Input Voltage Noise Density | 2 nV/√Hz |
| Dimensions | 4.89 x 3.9 x 1.48 mm |
| Bandwidth | 305 MHz (G = 2, RL = 100 Ω) |
| Output Current Drive | ±310 mA |
Key Features
- Low Distortion: 84-dBc HD2 and 99-dBc HD3 at 10 MHz, 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: Up to 6000 V/µs (G = 5, VO = 20 V PP)
- Wide Bandwidth: 305 MHz (G = 2, RL = 100 Ω)
- High Output Current Drive: ±310 mA
- Wide Supply Range: ±5 V to ±16 V, single supply from 10 V to 30 V
Applications
The THS3091DDA is an excellent choice for various high-speed and high-voltage applications, including:
- Pin Drivers: Capable of handling large voltage swings and driving into low-resistance and high-capacitance loads
- Power-FET Drivers: Suitable for driving power FETs due to its high output current drive and fast slew rate
- Arbitrary Waveform Generators: Ideal for generating large, linear output signals
- Video Applications: Given its low distortion and high bandwidth, it is well-suited for video and other high-frequency applications
Q & A
- What is the amplifier type of the THS3091DDA?
The THS3091DDA is a current-feedback operational amplifier.
- What is the typical slew rate of the THS3091DDA?
The typical slew rate is up to 6000 V/µs (G = 5, VO = 20 V PP), with a typical value of 1900 V/µs under different conditions
- What is the operating temperature range of the THS3091DDA?
The operating temperature range is from -40 °C to +85 °C.
- What is the package type of the THS3091DDA?
The package type is an 8-pin SOIC (HSOIC).
- What are the key features of the THS3091DDA in terms of noise and distortion?
The THS3091DDA features low distortion (84-dBc HD2 and 99-dBc HD3 at 10 MHz) and low noise (15-pA/√Hz noninverting current noise, 14-pA/√Hz inverting current noise, and 1.1-nV/√Hz voltage noise)
- What are some common applications of the THS3091DDA?
Common applications include pin drivers, power-FET drivers, arbitrary waveform generators, and video applications due to its high speed and low distortion
- What is the output current drive capability of the THS3091DDA?
The output current drive capability is ±310 mA.
- What is the bandwidth of the THS3091DDA?
The bandwidth is 305 MHz (G = 2, RL = 100 Ω).
- Does the THS3091DDA have a power-down feature?
No, the THS3091DDA does not have a power-down feature. This feature is available in the THS3095 model
- What is the typical input voltage noise density of the THS3091DDA?
The typical input voltage noise density is 2 nV/√Hz.
