AD8212

Rev. B | Page 12 of 16

BIDIRECTIONAL CURRENT SENSING

The AD8212 is a unidirectional current sensing device.

Therefore, in power management applications where both the

charge and load currents must be monitored, two devices can

be used and connected as shown in Figure 27. In this case,

COM

BIAS

ALPHA

V+

V+

COM

BIAS

ALPHA

AD8212

OUTPUT

CURRENT

COMPENSATION

AD8212

OUTPUT

CURRENT

COMPENSATION

BIAS

CIRCUIT

BIAS

CIRCUIT

8

8

6

3

2

5

6

3

2

5

1

1

Figure 27. Bidirectional Current Sensing