ADR440/ADR441/ADR443/ADR444/ADR445

Rev. A | Page 17 of 20

PRECISION OUTPUT REGULATOR

(BOOSTED REFERENCE)

ADR440/

ADR441/

ADR443/

ADR444/

ADR445

6

2

200Ω

1µF

2N7002

–V

15V

0.1µF

0.1µF

GND

4

Figure 41. Boosted Output Reference

Higher current drive capability can be obtained, without

sacrificing accuracy, by using the circuit in Figure 41. The

operational amplifier regulates the MOSFET turn-on, forcing

increased current drive capability. The circuit allows a 50 mA

load; if higher current drive is required, use a larger MOSFET.

capacitive loading.