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LOG112和LOG2112是多功能集成電路,可計算輸入電流相對于參考電流的對數(shù)或對數(shù)比。 LOG112和LOG2112的V LOGOUT 被調(diào)整為每十倍輸入電流0.5V,確保在寬動態(tài)范圍的輸入信號上具有高精度。
LOG112和LOG2112具有2.5V基準電壓源,可用于使用外部電阻產(chǎn)生精密電流基準。
低直流偏移電壓和溫度漂移可在指定溫度范圍內(nèi)精確測量低電平信號。 °C至+ 75°C。
全部商標是其各自所有者的財產(chǎn)。
| Scale Factor (V/decade) |
| Input Current Range (Min) (nA) |
| Input Current Range (Max) (mA) |
| Conformity Error (initial 5 decades) (Max) (%) |
| Conformity Error (initial 5 decades) (typ. over temp) (%/degree C) |
| Offset Voltage (Input Amplifiers) (Max) (mV) |
| Vs (+/-) (Min) (V) |
| Vs (+/-) (Max) (V) |
| Iq (Max) (mA) |
| Reference Type |
| Auxiliary Op Amps |
| Full-Scale Output Voltage (Min) (+/- V) |
| Full-Scale Output Voltage (Max) (+/- V) |
| Operating Temperature Range (C) |
| Pin/Package |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| Specified Voltage (+/- V) |
| LOG2112 |
|---|
| 0.5 |
| 0.1 |
| 3.5 |
| 0.2 |
| 0.0001 |
| 1.5 |
| 4.5 |
| 18 |
| 3.5 |
| Internal |
| 1 |
| -3.8 |
| 3.5 |
| -40 to 85 |
| 16SOIC |
| SOIC |
| 16SOIC: 106 mm2: 10.3 x 10.3(SOIC) |
| 5 |