LTC6103

13

6103f

APPLICATIONS INFORMATION

Voltage Translator

Each amplifier of the LTC6103 can be used as a high volt-

age level translator circuit as shown in Figure 7. In this

application, the LTC6103 translates a differential voltage

input voltage is 70V, this circuit can translate differential

With the dual LTC6103, half of the device can be used

to monitor a high side referenced signal and the other

amplifier can be used for current sensing.

Output Connection Methods

The outputs of the LTC6103 are current sources and may

be connected to subsequent circuitry in several ways.

As a dual current sense part, each output can be used

independently and in differing ways if desired.

For applications where the destination is local to the

form voltage sources. It is also possible to remotely locate

voltage drop is developed against a different ground refer-

another assembly. This method provides the elimination

of ground drop errors from effecting the measurement.

Ground differentials that are small enough to prevent

conduction of the output protection zener (>8V positive

or a couple hundred mV negative) can be rejected without

affecting linearity.

In the Typical Application, “±10A Differential Output Bidi-

rectional Monitor,” the outputs are kept separate, but are

treated as a differential pair. This connection allows placing

errors are rejected a the destination circuit as common

mode voltage shift, not signal error. This connection is

also shown in the application, ±10A Bidirectional H-Bridge

Monitor.

The outputs can also be tied together to drive a single

Bidirectional Monitor, producing an additive function. In

that particular circuit the two inputs are wired oppositely

form the same sense resistor, so the resulting output is

an absolute value signal.

+

–

1/2

LTC6103

–

6103 F07

Figure 7. Operation as Voltage Translator