7.

Function Network

SMV

ACBUF

ACDIV

ACDIV

ACEN

BPACBF

RCTOP

12K

INHMUX

SMV

SDV

NC

SGND

SDB

NC

AX5

FTIN

SINH<3:0>

INLMUX

SGND

SCV

SDV

INL

SINL<2:0>

VRHMUX

ADRF

SCV

SMV

VRH

SRFH<1:0>

VRLMUX

AGND

SCV

SDB

VRL

SRFL<2:0>

CMPHMUX

SMV

SDV

NC

CMPH

SCMPH<3:0>

ADRF

AX1

AX2

RCTE

N

FTR

FTR

BPFTR

INH

INL

VRH

VRL

SGND

ADRF

AX2

AX3

SMV

SGND

ADRF

AX2

AX3

ACBO

CMP1

CMPEN1

AGND

CMP1

HUNK

TENM

tenm<0>

tenm<1>

hunk<0>

hunk<1>

hunk<2>

tenm<1>

OSRMUX

AX5

Vrefh

OSRC

osr

osr

osr

OSRC

SOSR1:0

(VDD)

OSRO

SMV

AX3

AX4

AX3

NC

SDB

AX2

AX3

AX4

ADRF

ACBO

CMPH

AX1

AX2

AX3

AX4

LBS

SCV

SDV

The function network is shown in Fig. 8. There are multiplexers, op amps, and comparators. Control registers

can set multiplexers, INHMUX, INLMUX, VRHMUX, VRLMUX, and SCMPHMUX, to select working channels.

The op amps, ACBUF and RCTOP, can be used as the amplifier or input voltage buffer. OSRC is the

embedded Ohm voltage source for resistance measuring. The comparator is to compare the input signal with

AGND, and the output can be read through the register.