LTC1289 Linear Technology, LTC1289 Datasheet - Page 3

• Manufacturer Part Number: LTC1289
• Description: 3 Volt Single Chip 12-Bit Data Acquisition System
• Manufacturer: Linear Technology

AC CHARACTERISTICS
SYMBOL
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
SCLK
ACLK
ACC
SMPL
CONV
CYC
dDO
dis
en
hCS
hDI
hDO
f
r
suDI
suCS
WHCS
IN
PARAMETER
Shift Clock Frequency
A/D Clock Frequency
Delay time from CS to D
Analog Input Sample Time
Conversion Time
Total Cycle Time
Delay Time, SCLK to D
Delay Time, CS to D
Delay Time, 2nd ACLK to D
Hold Time, CS After Last SCLK
Hold Time, D
Time Output Data Remains Valid After SCLK
D
D
Setup Time, D
Setup Time, CS Before Clocking in
First Address Bit
CS High Time During Conversion
Input Capacitance
OUT
OUT
Fall Time
Rise Time
IN
IN
After SCLK
Stable Before SCLK
OUT
OUT
OUT
Hi-Z
Data Valid
OUT
Data Valid
Enabled
(Note 3)
CONDITIONS
(Note 6)
(Note 6)
(Note 9)
See Operating Sequence
See Operating Sequence
See Operating Sequence (Note 6)
See Test Circuits
See Test Circuits
See Test Circuits
(Note 6)
(Note 6)
See Test Circuits
See Test Circuits
(Note 6 and 9)
(Note 6 and 9)
(Note 6)
Analog Inputs On Channel
Analog Inputs Off Channel
Digital Inputs
(Note 10)
12 SCLK +
56 ACLK
2 ACLK Cycles
+ 180ns
MIN
50
50
52
0
0
LTC1289B
LTC1289C
TYP
200
130
100
52
70
50
40
40
2
7
5
5
MAX
350
150
250
100
100
1.0
2.0
LTC1289
UNITS
Cycles
Cycles
Cycles
Cycles
Cycles
ACLK
SCLK
ACLK
ACLK
3
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
pF