| Architecture | Fixed Gain/Buffer |
| 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) | 500 |
| BW @ Acl (MHz) | 500 |
| Acl, min spec gain (V/V) | 2 |
| Slew rate (Typ) (V/us) | 2675 |
| Vn at flatband (Typ) (nV/rtHz) | 6.1 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 6.1 |
| Iq per channel (Typ) (mA) | 32 |
| Vos (offset voltage @ 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) (uV/C) | 10 |
| Output current (Typ) (mA) | 70 |
| 2nd harmonic (dBc) | 75 |
| 3rd harmonic (dBc) | 96 |
| Frequency of harmonic distortion measurement (MHz) | 10 |
- HIGH BANDWIDTH: 500 MHz (G = +2 V/V)
- HIGH SLEW RATE: 2675 V/μs (4-V Step)
- EXCELLENT THD: –71dBc at 10 MHz
- LOW INPUT VOLTAGE NOISE: 6.1 nV/√Hz
- FAST OVERDRIVE RECOVERY: 8 ns
- FAST SETTLING TIME (1% 4-V Step): 7.9 ns
- LOW INPUT OFFSET VOLTAGE: ±1 mV
- LOW INPUT BIAS CURRENT: ±10 pA
- HIGH INPUT IMPEDANCE: 1012
||2.5 pF - INTERNAL GAIN SETTING RESISTORS:
G = +2 V/V or G = –1 V/V - HIGH OUTPUT CURRENT: 70 mA
- APPLICATIONS
- TEST AND MEASUREMENT FRONT-END
- HIGH-INPUT IMPEDANCE PROBES
- DATA ACQUISITION CARDS
- OSCILLOSCOPE INPUT
- ADC INPUT AMPLIFIER
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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.
