| Number of channels (#) | 4 |
| Total supply voltage (Min) (+5V=5, +/-5V=10) | 4.5 |
| Total supply voltage (Max) (+5V=5, +/-5V=10) | 36 |
| GBW (Typ) (MHz) | 16 |
| Slew rate (Typ) (V/us) | 9 |
| Rail-to-rail | Out |
| Vos (offset voltage @ 25 C) (Max) (mV) | 2 |
| Iq per channel (Typ) (mA) | 2 |
| Vn at 1 kHz (Typ) (nV/rtHz) | 4.5 |
| Features | Small Size |
| THD + N @ 1 kHz (Typ) (%) | 0.0001 |
| Rating | Automotive |
| Operating temperature range (C) | -40 to 125 |
| Output current (Typ) (mA) | 25 |
| Architecture | CMOS |
| CMRR (Typ) (dB) | 110 |
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Low noise: 4.5 nV/√Hz at 1 kHz
- Low distortion: 0.0001% at 1 kHz
- High open-loop gain: 114 dB
- Low quiescent current:
- 2 mA per channel
- Low input bias current: 10 pA (typical)
- Slew rate: 9 V/μs
- Wide gain bandwidth: 16 MHz (G = 1)
- Rail-to-rail output
- Wide supply range:
- ±2.25 V to ±18 V, or 4.5 V to 36 V
- Available packages:
- Dual: SOIC-8 (Preview)
- Quad: Small QFN-16
The dual-channel OPA1678-Q1 and quad-channel OPA1679-Q1 (OPA167x-Q1) operational amplifiers offer higher system-level performance over legacy op amps commonly used in audio circuitry. The OPA167x-Q1 amplifiers achieve a low 4.5-nV/√Hz noise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. These devices also offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range.
To accommodate the power-supply constraints of many types of audio products, the OPA167x-Q1 operate over a very wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36?V) on only 2 mA of supply current. These op amps are unity-gain stable and have excellent dynamic behavior over a wide range of load conditions allowing the OPA167x-Q1 to be used in many audio circuits.
The OPA167x-Q1 temperature ranges are specified from –40°C to +125°C.
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