5
LTC1090
1090fc
On and Off Channel Leakage Current
Voltage Waveforms for DOUT Delay Time, tdDO
Voltage Waveforms for ten and tdis
TEST CIRCUITS
SCLK
0.8V
2.4V
0.4V
2.4V
tr
tf
0.4V
tdDO
DOUT
LTC1090 TC02
Voltage Waveforms for DOUT Rise and Fall Times, tr, tf
ION
5V
OFF
CHANNELS
ON CHANNELS
POLARITY
IOFF
A
LTC1090 TC01
ACLK
CS
DOUT
WAVEFORM 1
(SEE NOTE 1)
DOUT
WAVEFORM 2
(SEE NOTE 2)
1
NOTE 1: WAVEFORM 1 IS FOR AN OUTPUT WITH INTERNAL CONDITIONS SUCH THAT THE OUTPUT
IS HIGH UNLESS DISABLED BY THE OUTPUT CONTROL
NOTE 2: WAVEFORM 2 IS FOR AN OUTPUT WITH INTERNAL CONDITIONS SUCH THAT THE OUTPUT
IS LOW UNLESS DISABLED BY THE OUTPUT CONTROL
2
LTC1090 TC03
2.4V
90%
2.0V
0.4V
10%
ten
tdis
Load Circuit for tdis and ten
Load Circuit for tdDO, tr, and tf
3k
100pF
DOUT
1.4V
TEST POINT
LTC1090 TC05
WAVEFORM 1
3k
100pF
DOUT
TEST
POINT
WAVEFORM 2
5V
LTC1090 TC04