chapter 3 Reference

wujin

V

? DD,min

18

T V mV /)(/)W L m W L =Low power, low voltage, only MN0, MN1 should be operated under W.I.

Usually open up!

If NM1 is biased under W.I., NM2 is certainly in W.I.

wujin

x

y

Extend to LDO if more current can be delivered to the load.

capability is remain poor.

Implicit current summing by P1 or P2, R

1=R

2

15

M18M21

M22

R1

Down: Coupled biasing, Core branch & OP biased for each other

wujin

: Using Voltage buffer, Source Follower BGR, Current mirror

wujin

Boost V

GSN first, subtracts a V, giving a low voltage reference,

Where the negative TC of V) can be compensated.

wujin R V I ref ref =

The TC of Vref should

be configured the same

as that of R Typical V -I

Converter CM BGR ?Current summing