Datasheet
LTC6903/LTC6904
3
69034fe
power requireMenTs
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. V
+
= 2.7V to 5.5V, GND = 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
S
Supply Voltage Applied Between V
+
and GND
l
2.7 5.5 V
I
S
, SHDN V
+
Supply Current, Shutdown V
S
= 2.7V
V
S
= 5.5V
l
l
0.25
0.6
0.6
2.2
mA
mA
I
S
, DC V
+
Supply Current, Single Output
Enabled
f = 68MHz, 5pF Load, V
+
= 2.7V
f < 1MHz, V
+
= 2.7V
f = 68MHz, 5pF Load, V
+
= 5.5V
f < 1MHz, V
+
= 5.5V
l
l
l
l
3.6
1.7
7
1.9
7
3.1
15
4.5
mA
mA
mA
mA
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 2.7V to 5.5V, GND = 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆fi Initial Frequency Accuracy f = 1.039kHz, V
+
= 3V, C
LOAD
= 5pF ±0.75 %
∆f Total Frequency Accuracy (Note 7) Single Output Active:
Over All Settings, V
+
= 2.7V, C
LOAD
= 5pF
Over All Settings, V
+
= 5.5V, C
LOAD
= 5pF
0.5
0.5
1.1
1.6
%
%
LTC6903CMS8, LTC6904CMS8:
Over All Settings, V
+
= 2.7V, C
LOAD
= 5pF
Over All Settings, V
+
= 5.5V, C
LOAD
= 5pF
l
l
0.5
0.5
1.65
2
%
%
LTC6903HMS8, LTC6903IMS8,
LTC6904HMS8, LTC6904IMS8,
LTC6904MPMS8:
Over All Settings, V
+
= 2.7V, C
LOAD
= 5pF
Over All Settings, V
+
= 5.5V, C
LOAD
= 5pF
l
l
0.5
0.5
1.9
2.2
%
%
f
MAX
Maximum Operating Frequency 68 MHz
f
MIN
Minimum Operating Frequency 1.039 kHz
∆f/∆T Frequency Drift Over Temperature 10 ppm/°C
∆f/∆V Frequency Drift Over Supply 0.05 %/V
Long-Term Frequency Stability 300 ppm/√kHr
Timing Jitter (See Graph) 1.039kHz to 8.5MHz
1.039kHz to 68MHz
0.4
1
%
%
Duty Cycle 1.039kHz to 1MHz
1.039kHz to 68MHz
l
49 50
50
51 %
%
R
OUT
Output Resistance CLK, CLK Pins, V
+
= 2.7V 45 Ω
V
OH
High Level Output Voltage V
+
= 5.5V, 4mA Load
V
+
= 2.7V, 4mA Load
l
l
4.8
2
5.3
2.3
V
V
V
+
= 5.5V, 1mA Load
V
+
= 2.7V, 1mA Load
l
l
5.2
2.3
5.45
2.55
V
V
V
OL
Low Level Output Voltage V
+
= 5.5V, 4mA Load
V
+
= 2.7V, 4mA Load
l
l
0.15
0.25
0.3
0.45
V
V
V
+
= 5.5V, 1mA Load
V
+
= 2.7V, 1mA Load
l
l
0.05
0.05
0.15
0.2
V
V
t
r
Output Rise Time (10% - 90%) V
+
= 5.5V, R
LOAD
= ∞, C
LOAD
= 5pF
V
+
= 2.7V, R
LOAD
= ∞, C
LOAD
= 5pF
1
1
ns
ns
t
f
Output Fall Time (10% - 90%) V
+
= 5.5V, R
LOAD
= ∞, C
LOAD
= 5pF
V
+
= 2.7V, R
LOAD
= ∞, C
LOAD
= 5pF
1
1
ns
ns