AD9224 ABSOLUTE MAXIMUM RATINGS* With Respect to Pin Name AVDD AVSS DRVDD DRVSS AVSS DRVSS AVDD DRVDD REFCOM AVSS CLK AVSS Digital Outputs DRVSS VINA, VINB AVSS VREF AVSS SENSE AVSS CAPB, CAPT AVSS Junction Temperature Storage Temperature Lead Temperature (10 sec) PIN CONFIGURATION 28-Lead SSOP Min Max Units –0.3 –0.3 –0.3 –6.5 –0.3 –0.3 –0.3 –0.3 –0.3 –0.3 –0.3 +6.5 +6.5 +0.3 +6.5 +0.3 AVDD + 0.3 DRVDD + 0.3 AVDD + 0.3 AVDD + 0.3 AVDD + 0.3 AVDD + 0.3 +150 +150 +300 V V V V V V V V V V V °C °C °C –65 *Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliability. S1 ANALOG INPUT S2 S4 tC tCH tCL S3 INPUT CLOCK tOD DATA OUTPUT DATA 1 Figure 1. Timing Diagram CLK 1 28 DRVDD (LSB) BIT 12 2 27 DRVSS BIT 11 3 26 AVDD BIT 10 4 25 AVSS BIT 9 5 24 VINB BIT 8 6 23 VINA BIT 7 7 AD9224 BIT 6 TOP VIEW 22 CML 8 (Not to Scale) 21 CAPT BIT 5 9 20 CAPB BIT 4 10 19 REFCOM (AVSS) BIT 3 11 18 VREF BIT 2 12 17 SENSE (MSB) BIT 1 13 16 AVSS OTR 14 15 AVDD PIN FUNCTION DESCRIPTIONS Pin Number 1 2 3–12 13 14 15, 26 16, 25 17 18 19 20 21 22 23 24 27 28 Name Description CLK BIT 12 BIT 11–2 BIT 1 OTR AVDD AVSS SENSE VREF REFCOM (AVSS) CAPB CAPT CML VINA VINB DRVSS DRVDD Clock Input Pin Least Significant Data Bit (LSB) Data Output Bit Most Significant Data Bit (MSB) Out of Range +5 V Analog Supply Analog Ground Reference Select Input Span Select (Reference I/O) Reference Common Noise Reduction Pin Noise Reduction Pin Common-Mode Level (Midsupply) Analog Input Pin (+) Analog Input Pin (–) Digital Output Driver Ground +3 V to +5 V Digital Output Driver Supply ORDERING GUIDE Model Temperature Range Package Description Package Option AD9224ARS AD9224-EB –40°C to +85°C 28-Lead Shrink Small Outline (SSOP) Evaluation Board RS-28 CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD9224 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. –4– WARNING! ESD SENSITIVE DEVICE REV. A