SSM2404 Analog Devices, SSM2404 Datasheet
SSM2404
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SSM2404 Summary of contents
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... TTL and CMOS Compatible Logic Inputs Low Cost-Per-Switch GENERAL DESCRIPTION The SSM2404 integrates four SPST analog switches in a single 20-pin package. Developed specifically for high performance audio applications, distortion and noise are negligible over the full operating range kHz. With very low charge injection of 35 pC, “ ...
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... OFF V = 2.4 V INH V = 0.8 V INL V Single Supply S Dual Supply I All Channels On SY+ I All Channels On SY– All Channels On 13.5 V Model S S SSM2404P SSM2404S *N = Plastic DIP SOIC C/W is specified for device JA –2– = +25 C.) A Min Typ Max 0.0008 0.8 0 –20 0.1 +20 –20 ...
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... A (OUT) 0.001 0.0001 100 /t Figure 3. THD+N vs. Load (V ON OFF kHz, with 80 kHz Filter) 0.01 0.001 0.0001 Figure 4. THD+N vs. Supply Voltage ( kHz, R –3– SSM2404 = kHz, with S 1k 10k LOAD RESISTANCE – rms SUPPLY VOLTAGE – rms 100 k , with 80 kHz Filter) L 100k ...
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... SSM2404 Figure 5. Frequency Response ( rms 100 8. 1.00 V/DIV MKR: 0. 0Hz MKR: 20 000Hz BW: 150Hz Figure 6. SSM2404 Spectral Noise Density e [5 Devices (20 Switches) Chained Together] 10V 100 10V Figure 7. Square Wave Response ( 100 kHz 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 Figure 8. Output Voltage Swing vs. Load Resistance ...
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... –40 Figure 15. Switching Time vs. Temperature 1.0 0.8 0.6 0.4 0 0.8V IL –0.2 –0 2.4V IH –0.6 –0.8 –1 Figure 16. Supply Current vs. Temperature –5– SSM2404 V = 12V 0.8V INL – +85 C –10 – ANALOG INPUT VOLTAGE – Volts V = 12V OFF – TEMPERATURE – C ...
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... OUTPUT such multiple-package applications (OUT) As Figure 20 shows, the SSM2404 is easy to use, and no ad- ditional devices are needed. The load resistors are recommended for improved OFF-isolation and charge injection. The ON LOGIC resistance of the switch is only 28 INPUT little signal attenuation even with a load resistor ...
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... SWA/SWB Figure 22. Double-Pole, Double-Throw Stereo Switch VIRTUAL GROUND SWITCHING The SSM2404 was built on a CMOS process with operating limit for the total supply voltage across the part. This leads to a corresponding limit on the analog voltage range. How- ever, to achieve larger signal swings, the SSM2404 should be configured in the virtual ground mode ...
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... 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 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 ...