5V + +----------+ INA128 | | +--------------------+ +-+ +-------+ V+ RG +---------+ | | | | +-+ | |1Meg | | | | 100R +-+ | | | | | | | +-+ +------------------+ In+ RG +---------+ | | | | | | | | ca 1,4V gemessen +------------------+ In- Out +-----------------------------------+ | | | ++ +-+ | | +-+ | | | | | | 1k | |1Meg | | 2,6V +----------+ | | +-+ +------+ V- Ref +-----------+REF3025 | +-+ | | +--------------------+ +----------+ | +-----------+ | +---------------------------------------------------------------+ | +-----+ +---+ +-+ +----------------------+ | | | | 5V +----------+ | + | | +----------+ INA128 +-+ +-+ | | +--------------------+ | | | | +-+ +-------+ V+ RG +---------+ | | | | 300K | | | | +-+ +-+ +-+ | |1Meg | | | | 100R | | +-+ | | | | | | | | | +-+ +----------------------------------------------+ In+ RG +---------+ | | | | | | | | | +------------------+ | | +-+ +-+ | | | bei symetrischen Widerständen 2,5V | | | | +------------------+ In- Out +-----------------------------------+ | | | | | | | ++ +-+ +-+ +-+ | | +-+ | | | | | | | | 1k | | | |1Meg | | 2,5V +----------+ | | +----------+ +-+ +------+ V- Ref +-----------+REF3025 | +-+ | | | +--------------------+ +----------+ | | +-----------+ | | +---------------------------------------------------------------+ +----------------------------------+ +-----+ +---+ +-+