| Architecture | Voltage FB |
| Number of channels (#) | 2 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 10 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 12 |
| GBW (Typ) (MHz) | 1750 |
| BW @ Acl (MHz) | 500 |
| Acl, min spec gain (V/V) | 7 |
| Slew rate (Typ) (V/us) | 625 |
| Vn at flatband (Typ) (nV/rtHz) | 1.2 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 1.2 |
| Iq per channel (Typ) (mA) | 12.6 |
| Vos (offset voltage @ 25 C) (Max) (mV) | 0.65 |
| Rail-to-rail | No |
| Features | Decompensated |
| Rating | Catalog |
| Operating temperature range (C) | -40 to 85 |
| CMRR (Typ) (dB) | 110 |
| Input bias current (Max) (pA) | 20000000 |
| Offset drift (Typ) (uV/C) | 1.6 |
| Output current (Typ) (mA) | 80 |
| 2nd harmonic (dBc) | 76 |
| 3rd harmonic (dBc) | 109 |
| Frequency of harmonic distortion measurement (MHz) | 5 |
- HIGH BANDWIDTH: 300MHz (G = +10)
- LOW INPUT VOLTAGE NOISE: 1.2nV/
Hz - VERY LOW DISTORTION: –100dBc (5MHz)
- HIGH SLEW RATE: 600V/μs
- HIGH DC ACCURACY: VIO = 150μV
- LOW SUPPLY CURRENT: 12.6mA/ch
- HIGH GAIN BANDWIDTH PRODUCT: 1650MHz
- STABLE FOR GAINS
+7V/V - APPLICATIONS
- HIGH DYNAMIC RANGE ADC PREAMPS
- LOW-NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
- WIDEBAND, HIGH GAIN AMPLIFIERS
- LOW-NOISE DIFFERENTIAL RECEIVERS
- VDSL LINE RECEIVERS
- ULTRASOUND CHANNEL AMPLIFIERS
- SECURITY SENSOR FRONT ENDS
All trademarks are the property of their respective owners.
The OPA2846 provides two very low-noise, high gain bandwidth, voltage-feedback op amps in a single package. Operating from a low 12.6mA/channel quiescent current, each channel provides a 1.2nV/Hz input voltage noise with a 1.65GHz gain bandwidth product. Minimum stable gain is specified at +7V/V while exceptional flatness is ensured at a gain of +10V/V.
The combination of low noise, high slew rate (600V/μs) and broad bandwidth allow very high SFDR differential receivers to be implemented. Additionally, decompensated, low-noise, voltage-feedback op amps are ideal for broadband transimpedance requirements. The dual channel OPA2846 provides matched channels for high-speed transimpedance requirements. With over 200MHz bandwidth at a gain of 20dB, excellent gain and phase matching are provided at IF frequencies for matched I and Q channel amplifiers.
