ES51963
4 1/2 DMM
(V-)+2.1V
(V-)+0.8V
END
set PEAK (S5) to L
START
SCLK
(V-)+2.1V
(V-)+0.8V
PEAK Hold
EOC
(V-)+2.1V
(V-)+0.8V
Pmax
Pmin
MODE 1
MODE 2
MODE 1
Operation on Format 2:
PEAK Hold calibration at format 2:
In calibration mode, the offset voltages (Vos) of Pmax and Pmin are measured two times
alternately, and ES51963 will count them at the same time. Then ES51963 sends the counts to
microprocessor, and microprocessor must remember them.
(V-)+2.1V
(V-)+0.8V
EOC
MODE 2 (uP to A/D)
MODE 1 (A/D to uP)
(V-)+2.1V
(V-)+0.8V
SCLK
END
START
set Pcal (S6) to H
(V-)+2.1V
(V-)+0.8V
(V-)+2.1V
(V-)+0.8V
calibration
STATUS
D0~D15
D0~D15 D0~D15
S0~S15 S0~S15
D0~D15
S0~S15
S0~S15
Pmax
Vos
Pmin
Vos
Pmax
Vos
Pmin
Vos
Note: it is not necessary to set PEAK (S5) to H at the same time.
To active PEAK Hold after calibration at format 2:
(V-)+2.1V
(V-)+0.8V
EOC
MODE 2 (uP to A/D)
MODE 1 (A/D to uP)
(V-)+2.1V
(V-)+0.8V
SCLK
START
END
set PEAK (S5) to H
(V-)+2.1V
(V-)+0.8V
(V-)+2.1V
PEAK Hold
STATUS
(Pmin) (Pmax) (Pmin)
(Pmax)
(V-)+0.8V
D0~D15
S0~S15
D0~D15
S0~S15
D0~D15
S0~S15
D0~D15
S0~S15
16
2003/9/1
CYRUSTEK [ Cyrustek corporation ]
