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INA138和INA168(INA1x8)是高侧单极电流分流监视器。此类器件兼具宽输入共模电压范围和低静态电流,并且采用小型SOT-23封装,广泛适用于各类应用而设计。
输入共模和电源电压相互独立,INA138的电压范围为2.7V至36V,INA168的电压范围为2.7V至少60V。静态电流仅为25μA,允许电源连接到电流测量分流器的任一侧,同时误差非常小。
该器件可将一个差分输入电压转换为电流输出。外部负载电阻转换回电压,该电阻可设置的增益范围为1至100以上。尽管该电路专为分流测量而设计,但同时也非常适用于创造性应用中的测量和电平转换。
INA138和INA168均采用SOT23-5封装,额定温度范围为-40°C至125°C。
所有商标均为其各自所有者的财产。
| Common Mode Voltage (Max) (V) |
| Common Mode Voltage (Min) (V) |
| Input Offset (+/-) (Max) (uV) |
| Input Offset Drift (+/-) (Typ) (uV/C) |
| Gain (V/V) |
| Gain Error (%) |
| Gain Error Drift (Max) (ppm/°C) |
| CMRR (Min) (dB) |
| Bandwidth (kHz) |
| Supply Voltage (Max) (V) |
| Supply Voltage (Min) (V) |
| Iq (Max) (mA) |
| Number of Channels (#) |
| Features |
| Rating |
| Operating Temperature Range (C) |
| Package Group |
| Package Size: mm2:W x L (PKG) |
| INA138 | INA139 | INA168 | INA169 | INA170 |
|---|---|---|---|---|
| 36 | 36 | 60 | 60 | 60 |
| 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
| 1000 | 1000 | 1000 | 1000 | 1000 |
| 1 | 1 | 1 | 1 | 1 |
| Adjustable | Adjustable | Adjustable | Adjustable | Adjustable |
| 2 | 2 | 2 | 2 | 2 |
| 100 | 100 | 100 | 100 | 100 |
| 100 | 100 | 100 | 100 | 100 |
| 800 | 4400 | 800 | 4400 | 4000 |
| 36 | 40 | 60 | 60 | 60 |
| 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
| 0.06 | 0.125 | 0.06 | 0.125 | 0.125 |
| 1 | 1 | 1 | 1 | 1 |
| Current Output | Current Output | Current Output | Current Output | Bi-directional Current Output |
| Catalog | Catalog | Catalog | Catalog | Catalog |
| -40 to 125 | -40 to 125 | -40 to 125 | -40 to 125 | -40 to 85 |
| SOT-23 | SOT-23 | SOT-23 | SOT-23 | VSSOP |
| 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23) | 8VSSOP: 15 mm2: 4.9 x 3(VSSOP) |