Gehäuseinformationen
| Gehäuse | Pins SOT-23 (DBV) | 6 |
| Betriebstemperaturbereich (°C) -40 to 125 |
| Gehäusemenge | Träger 250 | SMALL T&R |
Merkmale von OPA625
- High-Drive Mode:
- GBW (G = 100): 120 MHz
- Slew Rate: 115 V/µs
- 16-Bit Settling at 4-V Step: 280 ns
- Low Voltage Noise: 2.5 nV/√Hz at 10 kHz
- Low Output Impedance: 1 Ω at 1 MHz
- Offset Voltage: ±100 µV (max)
- Offset Voltage Drift: ±3 µV/ºC (max)
- LowQuiescent Current: 2 mA (typ)
- Low-Power Mode:
- GBW: 1 MHz
- Low Quiescent Current: 270 µA (typ)
- Power-Scalable Features:
- Ultrafast Transition from Low-Power to High-Drive Mode: 170 ns
- High AC and DC Precision:
- Low Distortion: –122 dBc for HD2 and –140 dBc for HD3 at 100 kHz
- Input Common-Mode Range Includes Negative Rail
- Rail-to-Rail Output
- Wide Temperature Range: Fully Specified from –40°C to +125°C
Beschreibung von OPA625
The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, SAR ADC drivers that are high precision with low THD and noise allow for a unique power-scalable solution. This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB). Along with a high dc precision of only 100 µV offset voltage, a wide gain-bandwidth product of 120 MHz, a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.
The OPAx625 features two operating modes: high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170 ns.
The OPAx625 family is available in 6-pin SOT and 10-pin VSSOP packages and is specified for operation from –40°C to +125°C.