Rainbow Electronics MAX7427 - Manual (Page 7)

MAX7426/MAX7427
5th-Order, Lowpass, Elliptic,
Switched-Capacitor
_______________________________________________________________________________________ 7
16.0
16.4
17.2
16.8
17.6
18.0
-40 0 20 -20 40 60 80 100
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
MAX7426/27-16
TEMPERATURE ( °C)
OSCILLATOR FREQUENCY (kHz)
V DD = +3V
C OSC = 1000pF
V DD = +5V
0
6
8
4
2
14
12
10
16
18
20
0 150 200 50 100 250 300 350
INTERNAL OSCILLATOR PERIOD
vs. LARGE CAPACITANCE (IN nF)
MAX7426/27-14
CAPACITANCE (nF)
OSCILLATOR PERIOD (ms)
V DD = +5V
V DD = +3V
17.1
17.2
17.3
17.4
17.5
2.0 3.0 2.5 3.5 4.0 4.5 5.0 5.5
INTERNAL OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
MAX7426/27-15
SUPPLY VOLTAGE (V)
OSCILLATOR FREQUENCY (kHz)
C OSC = 1000pF
-3.5
-2.5
-3.0
-1.5
-2.0
-0.5
-1.0
0
-40 0 20 -20 40 60 80 100
DC OFFSET VOLTAGE
vs. TEMPERATURE
MAX7426/27-17
TEMPERATURE ( °C)
DC OFFSET VOLTAGE (mV)
V DD = +3V
V DD = +5V
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
2.5 3.5 3.0 4.0 4.5 5.0 5.5
DC OFFSET VOLTAGE
vs. SUPPLY VOLTAGE
MAX7426/27-18
SUPPLY VOLTAGE (V)
DC OFFSET VOLTAGE (mV)
Typical Operating Characteristics (continued)
(V
DD
= +5V for MAX7426, V
DD
= +3V for MAX7427, f CLK = 100kHz, SHDN = V
DD
, V COM = V OS = V
DD
/ 2, T
A
= +25°C, unless other-
wise noted.)
0
50
100
150
200
0 1500 2000 500 1000 2500 3000 3500
INTERNAL OSCILLATOR PERIOD
vs. SMALL CAPACITANCE (IN pF)
MAX7426/27-13
CAPACITANCE (pF)
OSCILLATOR PERIOD (
µ
s)
V DD = +5V
V DD = +3V