MAX261ACWG Ver la hoja de datos (PDF) - Maxim Integrated
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Fabricante
MAX261ACWG Datasheet PDF : 26 Pages
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Microprocessor Programmable
Universal Active Filters
(TA = +25°C, unless otherwise noted.)
Q ERROR vs. CLOCK FREQUENCY
MAX260
30
±5V
25°C
20 Q = 8
fCLK/f0 ¡ N = 0
MODE 4
10
MODES 2 & 3
0
MODE 1
-10
Typical Operating Characteristics
IDD vs. POWER SUPPLY VOLTAGE
25
CLK FREQ = 500KHz
25°C
CONTROL PINS (5V, 0V)
20
CLOCKS (5V, 0V)
15
10
CLOCKS (5V, -5V)
IDD vs. CLOCK FREQUENCY
20
CLOCK (2.4V, 0.8V)
19
CLOCK (5V, 0V)
18
±5V
17 CONTROL PINS (5V, 0V)
25°C
16
CLOCK (5V, -5V)
15
14
-20
0.2
0.4 0.6 0.8 1.0 1.2 1.4
CLOCK FREQUENCY (MHz)
Q ERROR vs. CLOCK FREQUENCY
MAX261/MAX262
±5V
20 Q = 8
TA = 25°C
16
fCLK
f0
¡N=0
12
8
MODE 3
MODE 2
4
0
-4
0.5
MODES 1, 4
1.0 1.5 2.0 2.5 3.0 3.5
CLOCK FREQUENCY (MHz)
5
5 6 7 8 9 10 11 12
V+ TO V- (V)
FCLK/F0 ERROR vs. CLOCK FREQUENCY
MAX261/MAX262
0.2
MODES 2, 3
0
-0.2 ±5V
Q=8
-0.4 TA = 25°C
-0.6
fCLK
f0
¡
N
=
0
MODES 1, 4
-0.8
-1.0
-1.2
1.0 1.5 2.0 2.5 3.0 3.5
CLOCK FREQUENCY (MHz)
13
0.5
1.5
2.5
3.5
CLOCK FREQUENCY (MHz)
OUTPUT SIGNAL SWING
vs. CLOCK FREQUENCY
8
MAX261/MAX262 ALL MODES
7
6
5
4
MAX260 MODE 4
±5V
3
25°C
Q=8
2
fCLK/f0 ¡ N = 0
1
MAX260 MODES 1, 2, 3
0
0.2 0.6 1.0 1.4 1.8 2.2 2.8 3.0
CLOCK FREQUENCY (MHz)
Wideband RMS Noise (db ref. to 2.47VRMS, 7VP-P) ±5V Supplies
Q=1
Q=8
Q = 64
MODE
LP BP HP/AP/N LP BP HP/AP/N LP BP HP/AP/N
1 -84 -90 -84 -80 -82
-85
-72 -73
-85
2 -88 -90 -88 -84 -82
-84
-77 -73
-76
3 -84 -90 -88 -80 -82
-82
-73 -73
-74
4 -83 -89 -84 -79 -81
-85
-71 -73
-85
1 -87 -89 -86 -81 -81
-86
-73 -73
-86
2 -89 -88 -85 -83 -80
-82
-75 -72
-74
3 -87 -88 -85 -80 -82
-80
-71 -72
-72
4 -87 -88 -86 -81 -81
-86
-71 -72
-86
Note 1: fCLK = 1MHz for MAX261/MAX262, fCLK = 350kHz for MAX260
Note 2: fCLK/f0 ratio programmed at N = 63 (see Table 2)
Note 3: Clock feedthrough is removed with an RC lowpass ar 4f0, ie., R = 3.9kΩ,
C = 2000pF for MAX261.
Noise Spectral Distribution
(MAX261, fCLK = 1MHz, dB ref. to 2.47VRMS,
7VP-P)
MEASUREMENT
BANDWIDTH
Q=1 Q=8
Q = 64
Wideband
3kHz
-84 -80 -72
-87 -87 -86
C Message
Weighted
-93 -93 -93
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