LTC1289_15 Datasheet, PDF (8/28 Pages) Linear Technology – 3 Volt Single Chip 12-Bit Data Acquisition System

LTC1289
TEST CIRCUITS
On and Off Channel Leakage Current
3V
I_ON
A
ON CHANNEL
I_OFF
A
OFF
CHANNELS
POLARITY
LTC1283 TC01
Voltage Waveforms for D_OUT Delay Time, t_dDO
SCLK
D_OUT
0.45V
t_dDO
2.1V
0.6V
LTC1289 TC03
Load Circuit for t_dDO, t_r and t_f
1.5V
D_OUT
3k
100pF
TEST POINT
LTC1289 TC02
Voltage Waveforms for D_OUT Rise and Fall Times, t_r,t_f
2.1V
D_OUT
0.6V
t_r
t_f
LTC1289 TC04
Load Circuit for t_dis and t_en
TEST POINT
D_OUT
3k
100pF
3V t_dis WAVEFORM 2, t_en
t_dis WAVEFORM 1
LTC1289 TC05
8
Voltage Waveforms for t_en and t_dis
ACLK
1
2
CS
2.1V
D_OUT
WAVEFORM 1
(SEE NOTE 1)
D_OUT
WAVEFORM 2
(SEE NOTE 2)
2.1V
t_en
0.6V
90%
t_dis
10%
NOTE 1: WAVEFORM 1 IS FOR AN OUTPUT WITH 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.
LTC1289 TC06
1289fb