Datasheet

LTC2172-12/
LTC2171-12/LTC2170-12
6
21721012fb
TiMing characTerisTics
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
SYMBOL PARAMETER CONDITIONS
LTC2172-12 LTC2171-12 LTC2170-12
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
f
S
Sampling Frequency (Notes 10, 11)
l
5 65 5 40 5 25 MHz
t
ENCL
ENC Low Time (Note 8) Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
l
l
7.3
2
7.69
7.69
100
100
11.88
2
12.5
12.5
100
100
19
2
20
20
100
100
ns
ns
t
ENCH
ENC High Time (Note 8) Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
l
l
7.3
2
7.69
7.69
100
100
11.88
2
12.5
12.5
100
100
19
2
20
20
100
100
ns
ns
t
AP
Sample-and-Hold
Acquisition Delay Time
0 0 0 ns
power requireMenTs
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 9)
SYMBOL PARAMETER CONDITIONS
LTC2172-12 LTC2171-12 LTC2170-12
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
V
DD
Analog Supply Voltage (Note 10)
l
1.7 1.8 1.9 1.7 1.8 1.9 1.7 1.8 1.9 V
OV
DD
Output Supply Voltage (Note 10)
l
1.7 1.8 1.9 1.7 1.8 1.9 1.7 1.8 1.9 V
I
VDD
Analog Supply Current Sine Wave Input
l
154 177 94 111 74 83 mA
I
OVDD
Digital Supply Current 1-Lane Mode, 1.75mA Mode
1-Lane Mode, 3.5mA Mode
2-Lane Mode, 1.75mA Mode
2-Lane Mode, 3.5mA Mode
l
l
16
30
25
47
28
50
16
29
24
46
27
50
15
28
24
45
26
49
mA
mA
mA
mA
P
DISS
Power Dissipation 1-Lane Mode, 1.75mA Mode
1-Lane Mode, 3.5mA Mode
2-Lane Mode, 1.75mA Mode
2-Lane Mode, 3.5mA Mode
l
l
306
331
322
362
369
409
198
221
212
252
248
290
160
184
176
214
196
238
mW
mW
mW
mW
P
SLEEP
Sleep Mode Power 1 1 1 mW
P
NAP
Nap Mode Power 75 75 75 mW
P
DIFFCLK
Power Increase with Differential Encode Mode Enabled
(No Increase for Sleep Mode)
20 20 20 mW