The PCM1750 is a low cost, dual 18-bit CMOSanalog-to-digital converter optimized for dynamic sig-nal applications. The PCM1750 features true co-phasedinputs with an internal sample/hold function for eachchannel. The PCM1750 also comes complete with aninternal reference. Total power dissipation is less than300mW max using ±5V voltage supplies. Low maxi-mum Total Harmonic Distortion + Noise (88dB max)is 100% tested. The very fast PCM1750 is capableof 4X x audio bandwidth oversampling rates on bothinput channels simultaneously, providing greater free-dom to designers in selecting input anti-aliasing fil-ters.
PCM1750 outputs serial data in a format that is com-patible with many digital filter chips and comes pack-aged in a space saving 28-pin plastic DIP or SOIC.
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DUAL 18-BIT LOW-POWER CMOS AUDIOA/D CONVERTER FAST 4.5µs MIN CONVERSION TIMEINCLUDING S/H VERY LOW MAX THD+N: 88dB WithoutExternal Adjust COMPLETE WITH INTERNALREFERENCE AND DUAL S/H FUNCTION TWO CO-PHASE SAMPLED, ±2.75VAUDIO INPUTS CAPABLE OF 4X PER CHANNELOVERSAMPLING RATE RUNS ON ±5V SUPPLIES ANDDISSIPATES 300mW MAX COMPACT 28-PIN PLASTIC DIP OR SOIC
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Analog Input Voltage (VIN) .............................. VA 0.3V to +VA + 0.3V
+VA; +VD to ACOM/DCOM............................................................ 0 to +7V
VA to ACOM/DCOM ..................................................................0 to 7V
VA to +VA; +VD ...................................................................... 0 to +14V
ACOM to DCOM ................................................................................. ±1V
Digital Inputs (pins 4, 11) to DCOM ......................... 0.3V to +VD + 0.3V
Power Dissipation ......................................................................... 400mW
Lead Temperature, (soldering 10s) ............................................. +300°C
Max Junction Temperature ............................................................ 165°C
Thermal Resistance, JA: Plastic DIP .......................................... 80°C/W
Thermal Resistance, JA: Plastic SOIC ....................................... 100°C/W
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Required Field 
