Datasheet

LTC1864/LTC1865
6
18645fb
RECOMMENDED OPERATING CONDITIONS
The ● denotes specifi cations which apply over the
full operating temperature range, otherwise specifi cations are T
A
= 25°C.
LTC1864/LTC1865
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage 4.75 5.25 V
f
SCK
Clock Frequency
H-Grade
●
●
20
16.7
MHz
MHz
t
CYC
Total Cycle Time 16 • SCK + t
CONV
μs
t
SMPL
Analog Input Sampling Time LTC1864 (Note 5)
LTC1865 (Note 5)
16
14
SCK
SCK
t
suCONV
Setup Time CONV↓ Before First SCK↑
(See Figure 1) H-Grade
60
65
30
30
ns
ns
t
hDI
Hold Time SDI After SCK↑ LTC1865 15 ns
t
suDI
Setup Time SSDI Stable Before SCK↑ LTC1865 15 ns
t
WHCLK
SCK High Time f
SCK
= f
SCK(MAX)
40% 1/f
SCK
t
WLCLK
SCK Low Time f
SCK
= f
SCK(MAX)
40% 1/f
SCK
t
WHCONV
CONV High Time Between Data Transfer
Cycles
(Note 5) t
CONV
μs
t
WLCONV
CONV Low Time During Data Transfer (Note 5) 16 SCK
t
hCONV
Hold Time CONV Low After Last SCK↑ 13 ns