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INA302: 正负电源输出过流保护设计

Part Number: INA302
Other Parts Discussed in Thread: INA208, INA205, INA201

大家好,

我现在有一个模拟输出模块需要做过流保护,模拟输出模块的电压是±12V,需要检测这个输出模块(实际上是一个放大器)的输出电流,当输入输出电流超过±20mA时,给出报警信号。我看INA302的内部功能基本上是够的(包含检流放大和门限比较),就是检测电源只能是正电源,不能检测负电源。想知道有没有其他现成的IC可以满足我的要求?