| 1 3 4, 9, 16 5, 8 6 7 10 11-14, 17-20 15 | PWRDN VREF OUT VREF IN GND VD BIAS OUT AIN ENCODE D 7-D4, D 3-D O VDD | Power-Down Function Select; Logic HIGH for Power-Down Mode (DigitalOutputs Go to High Impedance State). Internal Reference Output (+2.5 V typ); Bypass with O.l ccF to Ground. Reference Input for ADC (+2.5 V typ, +10%). Ground (Analog/Digital). Analog +5 V Power Supply. Bias Pin for AC Coupling (1 kl to REF IN). Analog Input for AD C. Encode Clock for AD C (ADC Samples on Rising Edge of ENCODE). Digital Outputs ofADC. Digital Output Power Supply. Nominally +3 V to +5 V. |