Overview
The THS4631D is a high-speed, FET-input operational amplifier designed by Texas Instruments. It is optimized for applications that require wideband operation, high input impedance, and high power supply voltages. This amplifier features a 210-MHz gain bandwidth product and can operate with supply voltages ranging from ±5 V to ±15 V. The THS4631D is particularly suited for applications needing fast settling times and low harmonic distortion at high frequencies, making it ideal for use in various high-performance electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-Pin SOIC (D) |
| Number of Channels per Chip | 1 |
| Pin Count | 8 |
| Typical Single Supply Voltage | ±5 V to ±15 V |
| Typical Gain Bandwidth Product | 210 MHz |
| Maximum Operating Frequency | 325 MHz |
| Input Bias Current | 100 pA |
| Input Voltage Noise | 7 nV/√Hz |
| Maximum Input Offset Voltage | 500 µV at 25°C |
| Low Offset Drift | 2.5 µV/°C |
| Input Impedance | 10^9 || 3.9 pF |
| High Output Current | 95 mA |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- High Bandwidth: 325 MHz in unity gain and 210 MHz gain bandwidth product.
- High Slew Rate: 900 V/µs (G = 2) and 1000 V/µs (G = 5).
- Low Distortion: –76 dB, SFDR at 5 MHz.
- Low Noise: Input voltage noise of 7 nV/√Hz.
- High Input Impedance: 10^9 || 3.9 pF.
- Wide Supply Range: ±5 V to ±15 V.
- High Output Current: Up to 95 mA.
Applications
- Wideband Photodiode Amplification: Ideal for transimpedance amplification of photodiode output currents.
- Test and Measurement Systems: Requires high input impedance and wideband operation.
- ADC and DAC Buffering: Suitable for high-speed integration and active filtering.
- Active Filtering: High bandwidth and low distortion make it suitable for active filtering applications.
Q & A
- What is the typical gain bandwidth product of the THS4631D?
The typical gain bandwidth product of the THS4631D is 210 MHz.
- What is the maximum operating frequency of the THS4631D?
The maximum operating frequency of the THS4631D is 325 MHz.
- What is the input bias current of the THS4631D?
The input bias current of the THS4631D is 100 pA.
- What is the input voltage noise of the THS4631D?
The input voltage noise of the THS4631D is 7 nV/√Hz.
- What is the maximum input offset voltage of the THS4631D at 25°C?
The maximum input offset voltage of the THS4631D at 25°C is 500 µV.
- What is the operating temperature range of the THS4631D?
The operating temperature range of the THS4631D is -40°C to 85°C.
- What are the typical supply voltages for the THS4631D?
The THS4631D can operate with supply voltages ranging from ±5 V to ±15 V.
- What is the high output current capability of the THS4631D?
The THS4631D can provide up to 95 mA of output current.
- What are some common applications of the THS4631D?
Common applications include wideband photodiode amplification, test and measurement systems, ADC and DAC buffering, and active filtering.
- What is the package type of the THS4631D?
The THS4631D is available in an 8-pin SOIC (D) package.
