OPA2625
Description
The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, high-precision, SAR ADC drivers with low THD and noise that 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).
Key Features
- 1 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) - Low Quiescent 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 HighDrive 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
