LTC1064_15 Datasheet, PDF (5/20 Pages) Linear Technology – Low Noise, Fast, Quad Universal Filter Building Block

LTC1064
TYPICAL PERFORMANCE CHARACTERISTICS
Mode 2, (f_CLK/f_O) = 25:1
Mode 2, (f_CLK/f_O) = 50:1
Mode 3, (f_CLK/f_O) = 50:1
T_A = 25°C
20
V_S = ±7.5V
PIN 17 AT V
+
15 (R2/R4) = 3
10
Q=5
5
C_C = 22pF
0
–5
Q=2
C_C = 39pF
1.5
1.0
Q=5
Q=2
0.5
0
0 20 40 60 80 100120140160180 200
CENTER FREQUENCY (kHz)
1064 G04
Mode 3, (f_CLK/f_O) = 50:1
T_A = 25°C
20
C_C = 15pF
R2 = R4
15 V_S = ±7.5V
10
5
0
–5
Q=2
Q=1
1.5
1.0 ^{VS = ±2.5V}
0.5
V_S = ±7.5V
V_S = ±5V
0
0 10 20 30 40 50 60 70 80 90 100 110 120
CENTER FREQUENCY (kHz)
1064 G07
20
15
V_S = ±2.5V
V_S = ±5V
10
5
V_S = ±7.5V
0
–5
T_A = 25°C
PIN 17 AT
V^–
(R2/R4) = 3
Q=5
Q = 10
1.5
V_S = ±5V
1.0
0.5
V_S = ±2.5V
V_S = ±7.5V
0
0 10 20 30 40 50 60 70 80 90 100110 120
CENTER FREQUENCY (kHz)
1064 G05
Mode 3, (f_CLK/f_O) = 100:1
20
15 ^{VS = ±2.5V} V_S = ±5V
T_A = 25°C
C_C = 5pF
R2 = R4
Q = 10
10
5
V_S = ±7.5V
0
–5
V_S = ±2.5V
1.5
1.0
V_S = ±5V
V_S = ±7.5V
0.5
0
0 10 20 30 40 50 60 70 80 90 100110 120
CENTER FREQUENCY (kHz)
1064 G08
20
15
V_S = ±5V
10
V_S = ±2.5V
T_A = 25°C
C_C = 5pF
R2 = R4
Q=5
Q = 10
5
V_S = ±7.5V
0
–5
1.5
1.0 _{VS = ±2.5V}
0.5
V_S = ±5V _{VS = ±7.5V}
0
0 10 20 30 40 50 60 70 80 90 100110 120
CENTER FREQUENCY (kHz)
1064 G06
Wideband Noise vs Q
240
220 ^{ANY OUTPUT}
200
R3 = R1
ONE SECOND ORDER
180 SECTION
160 ^{MODE 1 OR 3}
100:1 OR 50:1
140
120
±7.5V
±5V
±2.5V
100
80
60
40
20
0
0 2 4 6 8 10 12 14 16 18 20 22 24
Q
1064 G09
Power Supply Current vs
Supply Voltage
48
44
40
36
32
28
24
– 55°C
20
25°C
16
125°C
12
8
4
0
0 2 4 6 8 10 12 14 16 18 20 22 24
POWER SUPPLY VOLTAGE (V⁺ – V^–)
1064 G10
Harmonic Distortion, 8th Order
LP Butterworth, f_C = 20kHz,
THD = 0.015% for 3V_RMS Input
1064 G11
1064fb
5