Overview
The THS4631DR is a high-speed, FET-input operational amplifier designed by Texas Instruments for applications requiring wideband operation, high-input impedance, and high-power supply voltages. This amplifier is characterized by its 210-MHz gain bandwidth product, ±15-V supply operation, and a low input bias current of 100 pA. It is particularly suited for applications that demand simultaneous wideband transimpedance gain and large output signal swing, making it an excellent choice for various high-performance applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Bandwidth (Unity Gain) | 325 | MHz |
| Gain Bandwidth Product | 210 | MHz |
| Slew Rate (G = 2) | 900 | V/µs |
| Slew Rate (G = 5) | 1000 | V/µs |
| Input Bias Current | 100 | pA |
| Input Voltage Noise | 7 | nV/√Hz |
| Input Offset Voltage | 500 | µV at 25°C |
| Offset Drift | 2.5 | µV/°C |
| Input Impedance | 10^9 || 3.9 pF | |
| Supply Range | ±5 V to ±15 V | |
| Output Current | 95 | mA |
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | 8-pin SOIC (D), 8-pin SOIC (DDA), MSOP (DGN) with PowerPAD™ |
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 input bias current: 100 pA.
- Low input voltage noise: 7 nV/√Hz.
- Low offset drift: 2.5 µV/°C.
- High input impedance: 10^9 || 3.9 pF.
- Wide supply range: ±5 V to ±15 V.
- High output current: 95 mA.
Applications
- Wideband photodiode amplifiers.
- Test and measurement systems requiring high-input impedance.
- ADC and DAC buffering.
- High-speed integration.
- Active filtering.
- Current-DAC output buffer.
- High-speed signal integrator.
- High-impedance buffer.
Q & A
- What is the bandwidth of the THS4631 in unity gain? The bandwidth of the THS4631 in unity gain is 325 MHz.
- What is the gain bandwidth product of the THS4631? The gain bandwidth product of the THS4631 is 210 MHz.
- What are the slew rates of the THS4631 at different gains? The slew rates are 900 V/µs at G = 2 and 1000 V/µs at G = 5.
- What is the input bias current of the THS4631? The input bias current is 100 pA.
- What is the input voltage noise of the THS4631? The input voltage noise is 7 nV/√Hz.
- What is the maximum input offset voltage of the THS4631 at 25°C? The maximum input offset voltage is 500 µV at 25°C.
- What is the offset drift of the THS4631? The offset drift is 2.5 µV/°C.
- What is the input impedance of the THS4631? The input impedance is 10^9 || 3.9 pF.
- What is the supply range of the THS4631? The supply range is ±5 V to ±15 V.
- What are some common applications of the THS4631? Common applications include wideband photodiode amplifiers, test and measurement systems, ADC and DAC buffering, high-speed integration, and active filtering.
