| Architecture | FET / CMOS Input, Voltage FB |
| Number of channels (#) | 1 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 7 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 13 |
| GBW (Typ) (MHz) | 650 |
| BW @ Acl (MHz) | 650 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (Typ) (V/us) | 2550 |
| Vn at flatband (Typ) (nV/rtHz) | 8.9 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 8.9 |
| Iq per channel (Typ) (mA) | 30.5 |
| Vos (offset voltage @ 25 C) (Max) (mV) | 5 |
| Rail-to-rail | No |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| CMRR (Typ) (dB) | 70 |
| Input bias current (Max) (pA) | 50 |
| Offset drift (Typ) (uV/C) | 10 |
| Output current (Typ) (mA) | 70 |
| 2nd harmonic (dBc) | 79 |
| 3rd harmonic (dBc) | 100 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
- High Bandwidth: 650 MHz (G = 1 V/V)
- High Slew Rate: 2550 V/μs (4-V Step)
- Excellent THD: –78 dBc at 10 MHz
- Low Input Voltage Noise: 8.9 nV/√Hz
- Fast Overdrive Recovery: 8 ns
- Fast Settling time (1% 4-V Step): 8 ns
- Low Input Offset Voltage: ±1 mV
- Low Input Bias Current: ±10 pA
- High Output Current: 70 mA
The OPA659 combines a very wideband, unity-gain stable, voltage-feedback operational amplifier with a JFET-input stage to offer an ultra-high dynamic range amplifier for high impedance buffering in data acquisition applications such as oscilloscope front-end amplifiers and machine vision applications such as photodiode transimpedance amplifiers used in wafer inspection.
The wide 650-MHz unity-gain bandwidth is complemented by a very high 2550-V/μs slew rate.
The high input impedance and low bias current provided by the JFET input are supported by the low 8.9-nV/&radic:Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.
Broad transimpedance bandwidths are possible with the high 350-MHz gain bandwidth product of this device.
Where lower speed with lower quiescent current is required, consider the OPA656. Where unity-gain stability is not required, consider the OPA657.
