The OPA653 combines a very wideband voltage-feedback operational amplifier with a JFET-input stage with internal gain setting resistors to achieve an ultra-high, dynamic-range amplifier for fixed gain of +2-V/V or –1-V/V applications.
The 500-MHz wide gain of +2-V/V bandwidth is complemented by a very high 2675-V/µs slew rate and fast settling time that make it ideal for time-domain and pulse-oriented applications.
Excellent –72-dBc THD distortion performance at 10 MHz makes the OPA653 an excellent choice for frequency-domain and FFT analysis applications.
Additionally, with the low 6.1-nV/√Hz voltage noise, low bias current, and high impedance JFET input, it supports very low noise, wideband, high input impedance applications. Examples include high-impedance probes, data acquisition cards, and oscilloscope front-ends.
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| Architecture | Fixed Gain/Buffer |
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 7 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 13 |
| GBW (typ) (MHz) | 500 |
| BW at Acl (MHz) | 500 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (typ) (V/µs) | 2675 |
| Vn at flatband (typ) (nV√Hz) | 6.1 |
| Vn at 1 kHz (typ) (nV√Hz) | 6.1 |
| Iq per channel (typ) (mA) | 32 |
| Vos (offset voltage at 25°C) (max) (mV) | 5 |
| Rail-to-rail | No |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| CMRR (typ) (dB) | 66 |
| Input bias current (max) (pA) | 50 |
| Offset drift (typ) (µV/°C) | 10 |
| Iout (typ) (mA) | 70 |
| 2nd harmonic (dBc) | 75 |
| 3rd harmonic (dBc) | 96 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
| SOT-23 (DBV) | 5 | 8.12 mm² 2.9 x 2.8 |
| VSON (DRB) | 8 | 9 mm² 3 x 3 |
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