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OPA691为宽带电流反馈运算放大器设定了新的性能水平。 OPA691采用极低的5.1mA电源电流工作，提供压摆率和输出功率，通常与更高的电源电流相关。新的输出级架构可提供高输出电流，并具有最小的电压余量和交叉失真。这提供了出色的单电源操作。采用+ 5V单电源供电，OPA691可提供1V至4V输出摆幅，驱动电流超过150mA，带宽为190MHz。这些功能组合使OPA691成为理想的RGB线路驱动器或单电源模数转换器（ADC）输入驱动器。
OPA691的低5.1mA电源电流精确调整为25 C。这种微调以及低漂移过热可确保比竞争产品更低的最大电源电流。使用可选的禁用控制引脚可以进一步降低系统功耗。将此禁用引脚保持打开状态或保持高电平可使其正常工作。如果拉低，OPA691电源电流降至150μA以下，同时输出进入高阻态。此功能可用于节省电力。
：0.07％/0.02 °所有商标均为其各自所有者的财产。
| Architecture |
| Number of Channels (#) |
| Total Supply Voltage (Min) (+5V=5, +/-5V=10) |
| Total Supply Voltage (Max) (+5V=5, +/-5V=10) |
| BW @ Acl (MHz) |
| Acl, min spec gain (V/V) |
| Slew Rate (Typ) (V/us) |
| Vn at Flatband (Typ) (nV/rtHz) |
| Vn at 1kHz (Typ) (nV/rtHz) |
| Iq per channel (Typ) (mA) |
| Vos (Offset Voltage @ 25C) (Max) (mV) |
| Rail-to-Rail |
| Features |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| CMRR (Typ) (dB) |
| Input Bias Current (Max) (pA) |
| Offset Drift (Typ) (uV/C) |
| GBW (Typ) (MHz) |
| Output Current (Typ) (mA) |
| 2nd Harmonic (dBc) |
| 3rd Harmonic (dBc) |
| @ MHz |
| OPA691 | LMH6702 | OPA2691 | OPA2695 | OPA3691 | OPA3695 | OPA694 | OPA695 |
|---|---|---|---|---|---|---|---|
| Bipolar Current FB | Bipolar Current FB | Bipolar Current FB | Bipolar Current FB | Bipolar Current FB | Bipolar Current FB | Bipolar Current FB | Bipolar Current FB |
| 1 | 1 | 2 | 2 | 3 | 3 | 1 | 1 |
| 4 | 8 | 4 | 3.5 | 4 | 3.5 | 7 | 5 |
| 12 | 12 | 12 | 12 | 12 | 12 | 12.6 | 12 |
| 280 | 1700 | 280 | 1100 | 280 | 1000 | 1500 | 1700 |
| 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 |
| 2100 | 3100 | 2100 | 2900 | 2100 | 2400 | 1700 | 4300 |
| 1.7 | 1.83 | 1.7 | 1.8 | 1.7 | 1.8 | 2.1 | 1.8 |
| 1.7 | 1.83 | 1.7 | 1.8 | 1.7 | 1.8 | 2.1 | 1.8 |
| 5.1 | 12.5 | 5.1 | 12.9 | 5.1 | 12.9 | 5.8 | 12.9 |
| 2.5 | 4.5 | 3 | 3.5 | 3 | 3.5 | 3 | 3 |
| No | No | No | No | No | No | No | No |
| Shutdown | N/A | Shutdown | Small Size Shutdown | Shutdown | Shutdown | N/A | Shutdown |
| Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
| -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| SOIC SOT-23 | SOIC SOT-23 | SOIC SOIC | SOIC VQFN | SOIC SSOP | SSOP | SOIC SOT-23 | SOIC SOT-23 VSSOP |
| 8SOIC: 29 mm2: 6 x 4.9(SOIC) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 14SOIC: 52 mm2: 6 x 8.65(SOIC) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 16VQFN: 9 mm2: 3 x 3(VQFN) | 16SOIC: 59 mm2: 6 x 9.9(SOIC) 16SSOP: 29 mm2: 6 x 4.9(SSOP) | 16SSOP: 29 mm2: 6 x 4.9(SSOP) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 8SOIC: 29 mm2: 6 x 4.9(SOIC) 6SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |
| 56 | 48 | 56 | 56 | 56 | 56 | 60 | 56 |
| 35000000 | 15000000 | 35000000 | 30000000 | 35000000 | 30000000 | 20000000 | 30000000 |
| 20 | 13 | 20 | 15 | 20 | 15 | 15 | 15 |
| 280 | 1700 | 280 | 1100 | 280 | 1000 | 1500 | 1700 |
| 190 | 80 | 190 | 120 | 190 | 120 | 80 | 120 |
| 70 | 100 | 70 | 73 | 70 | 65 | 68 | 65 |
| 74 | 96 | 74 | 82 | 74 | 86 | 72 | 86 |
| 5 | 5 | 5 | 10 | 5 | 10 | 5 | 10 |
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