SSM2404P Analog Devices Inc, SSM2404P Datasheet - Page 8

• Manufacturer Part Number: SSM2404P
• Description: IC SWITCH QUAD SPST 20DIP
• Manufacturer: Analog Devices Inc

Specifications of SSM2404P

• Rohs Status: RoHS non-compliant
• Function: Switch
• Circuit: 4 x SPST - NO
• On-state Resistance: 45 Ohm
• Voltage Supply Source: Single, Dual Supply
• Voltage - Supply, Single/dual (±): 11 V ~ 24 V, ± 5.5 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)

SSM2404
The circuit was tested with an SSM2131 high slew rate audio
amplifier and the results are shown in Figures 24 and 25. This
configuration yields excellent THD performance that is
primarily determined by the amplifier. Also, the headroom is
now +24 dBu (0 dBu = 0.775 V rms), which is due to the
amplifier’s output voltage swing. Thus, even though the
SSM2404 has a 12 V limitation on its supplies, it can be used
in systems with much higher voltage ranges. For example, the
double-pole double-throw switch from Figure 22 can be
reconfigured in the virtual ground mode to allow higher voltage
swings, as shown in Figure 26. This application realizes the
excellent performance of Figures 24 and 25 while providing a
low cost switching solution.
Figure 24. Virtual Ground Switch THD+N vs. Frequency
(V
Figure 25. Virtual Ground Switch Headroom (V
for SSM2404; V
80 kHz Filter)
S
= 12 V, V
AUDIO
1N914
IN
Figure 23. Virtual Ground Switching
5k
R1
A
= 2 V rms, with 80 kHz Filter)
S
= 18 V for Op Amp, f = 1 kHz, with
1
SW1 A
SSM2404
SW1 B
+12V
–12V
3
SSM2131
+18V
–18V
5k
R2
S
AUDIO
OUT
= 12 V
–8–
Figure 26. Double-Pole, Double-Throw Stereo Switch
Using Virtual Ground Operation
0.200 (5.05)
0.125 (3.18)
PIN 1
0.0118 (0.30)
0.0040 (0.10)
SWA/SWB
(5.33)
0.210
MAX
PIN 1
R
R
L
L
INB
INA
INB
INA
0.022 (0.558)
0.014 (0.356)
20
1
20
1
5k
5k
5k
5k
0.0500 (1.27)
0.5118 (13.00)
0.4961 (12.60)
BSC
Dimensions shown in inches and (mm).
0.0192 (0.49)
0.0138 (0.35)
OUTLINE DIMENSIONS
1.060 (26.90)
0.925 (23.50)
10
16
11
20
15
6
4
5
0.100 (2.54)
1
SW1 CONTROL
SW4 CONTROL
Mini-DIP (P Suffix)
BSC
SW2 CONTROL
SW3 CONTROL
DGND
SOIC (S Suffix)
SSM2404
0.1043 (2.65)
0.0926 (2.35)
SW2
SW1
SW3
SW4
10
11
0.2992 (7.60)
0.2914 (7.40)
0.070 (1.77)
0.045 (1.15)
V+
V–
AGND
0.0125 (0.32)
0.0091 (0.23)
10
11
17
14
0.4193 (10.65)
0.3937 (10.00)
0.060 (1.52)
0.015 (0.38)
0.280 (7.11)
0.240 (6.10)
12
2
9
19
18
8
3
13
0.150
(3.81)
MIN
SEATING
PLANE
0.0291 (0.74)
0.0098 (0.25)
0.015 (0.381)
0.008 (0.204)
0.0500 (1.27)
0.0157 (0.40)
0.325 (8.25)
0.300 (7.62)
5k
5k
SSM2131
SSM2131
X
45
R
0.195 (4.95)
0.115 (2.93)
L
0
OUT
OUT
-
REV. B
8