(Substrate)

Current

Source

(1 of 2)

4k

8X

8,7

5k

1k

1,2

6

3

5

4

1k

12k

Current

Mirror

REF200

SBVS020B – SEPTEMBER 2000 – REVISED JULY 2015

www.ti.com

7.4 Device Functional Modes

The three circuit sections of the REF200 are electrically isolated from one another, using a dielectrically-isolated

fabrication process. A substrate connection is provided (pin 6), which is isolated from all circuitry. This pin should

be connected to a defined circuit potential to assure rated DC performance. The preferred connection is to the

performance, leave pin 6 open and leave unused sections unconnected. Figure 10 shows the simplified circuit

diagram of the REF200.

Figure 10. Simplified Circuit Diagram

8

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