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OPA857是一款针对光电二极管监控应用的宽频带,快速过驱恢复,快速稳定,超低噪声互感抗放大器。借助于选选反馈电阻,OPA857简化了高性能光系统的设计。极快速过载恢复时间和内部输入保护提供了最佳组合,以便在最大限度地减少恢复时间的同时,保护信号链的剩余部分。两个可选的互阻抗增益配置可实现当代互阻抗放大器应用所需要的高动态范围和灵活性.OPA857采用3mm×3mm超薄型四方扁平无引线(VQFN)封装。
此器件可在-40°C至+ 85°C的整个工业级温度范围内额定运行。
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 |
OPA857 | OPA656 | OPA657 | OPA857-DIE | OPA858 |
---|---|---|---|---|
FET Voltage FB | FET Voltage FB | FET Voltage FB | FET Voltage FB | FET Voltage FB |
1 | 1 | 1 | 1 | 1 |
2.3 | 7 | 8 | 2.3 | 3.3 |
3.6 | 13 | 12 | 3.6 | 5.25 |
130 | 500 | 350 | 130 | 1200 |
1 | 7 | 7 | ||
220 | 290 | 700 | 220 | 2000 |
4.5 | 7 | 4.8 | 2.5 | |
7 | 10 | 7 | ||
23.4 | 14 | 14 | 23.4 | 20.5 |
10 | 0.6 | 1.8 | 2.5 | |
No | No | No | No | No |
N/A | N/A | Decompensated | N/A | Shutdown |
Catalog | Catalog | Catalog | Catalog | Catalog |
-40 to 95 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 125 |
VQFN | SOIC SOT-23 | SOIC SOT-23 | WSON | |
16VQFN: 9 mm2: 3 x 3(VQFN) | 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) 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | See datasheet (WSON) | |
86 | 89 | 80 | ||
20 | 5 | 20 | 20 | |
2 | 2 | 1.5 | ||
6800 | 500 | 1600 | 6800 | 5500 |
20 | 70 | 70 | 20 | 80 |
94 | 71 | 74 | 94 | 80 |
97 | 81 | 106 | 97 | 86 |
10 | 5 | 5 | 10 | 10 |
无样片 |