Datasheet

LTC6906
4
6906fc
TYPICAL PERFORMANCE CHARACTERISTICS
Typical Supply Current
vs Load Capacitance
V
SET
vs Temperature (V
SET
is the
Voltage Measured at the R
SET
Pin)
Typical Supply Current
vs Temperature, 1MHz
Typical Frequency Error
vs Power Supply
Typical Supply Current
vs Frequency
Typical Frequency Error vs R
SET
Typical Supply Current
vs Temperature, 100kHz
Typical Frequency Error
vs Temperature
SUPPLY VOLTAGE (V)
2.25
–0.50
FREQUENCY ERROR (%)
–0.40
–0.20
–0.10
0
0.50
0.20
3
4
R
SET
= 1M
R
SET
= 100k
6906 G01
–0.30
0.30
0.40
0.10
5
TEMPERATURE (°C)
–50
–5
FREQUENCY ERROR (%)
–4
–2
–1
0
2
–30
50
90
6906 G02
–3
1
30
130
150
–10
10
70 110
R
SET
= 100k
R
SET
= 1M
3.6V
3.6V
2.25V
2.25V
R
SET
(kΩ)
0
–0.50
ERROR (%)
–0.30
–0.10
0.10
200
400
600 800
6906 G03
1000
0.30
0.50
–0.40
–0.20
0
0.20
0.40
1200
V
+
= 5V
V
+
= 2.25V
FREQUENCY (kHz)
0
0
POWER SUPPLY CURRENT (A)
10
30
40
50
800
90
6906 G04
20
400
200
1000
600 1200
60
70
80
V
+
= 3.6V
V
+
= 2.25V
C
L
= 5pF
T
A
= 25°C
LOAD CAPACITANCE (pF)
0
0
POWER SUPPLY CURRENT (A)
20
60
80
100
200
140
10
20
6906 G05
40
160
180
120
30
40
1MHz, 3.6V
T
A
= 25C
100kHz, 3.6V
1MHz, 2.25V
100kHz, 2.25V
TEMPERATURE (°C)
–60
SET PIN VOLTAGE (V)
0.60
0.70
0.80
100
6906 G06
0.50
0.40
0.55
0.65
0.75
0.45
0.35
0.30
–20–40
200
60 80 120
40
140
V
SET
AT
V
+
= 3.6V
V
SET
AT
V
+
= 2.25V
R
SET
= 100k
TEMPERATURE (°C)
–50
SUPPLY CURRENT (A)
14
16
18
110
6906 G08
12
10
13
15
17
11
9
8
–10–30
3010
70 90 130
50
150
I
SUPPLY
AT V
+
= 3.6V
I
SUPPLY
AT V
+
= 2.25V
C
L
= 5pF
TEMPERATURE (°C)
–60
55
SUPPLY CURRENT (A)
60
70
75
80
90
–40
40
80
6906 G07
65
85
20
120
140
–20
0
60 100
I
SUPPLY
AT V
+
= 3.6V
I
SUPPLY
AT V
+
= 2.25V
C
L
= 5pF