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AD775JR Datasheet(PDF) 4 Page - Analog Devices |
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AD775JR Datasheet(HTML) 4 Page - Analog Devices |
4 / 12 page AD775 REV. 0 –4– WARNING! ESD SENSITIVE DEVICE 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 AD775 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. PIN DESCRIPTION Pin No. Symbol Type Name and Function 1 OE DI OE = Low OE = High Normal Operating Mode. High Impedance Outputs. 2, 24 DVSS P Digital Ground. Note: DVSS and AVSS pins should share a common ground plane on the circuit board. 3 D0 (LSB) DO Least Significant Bit, Data Bit 0. 4–9 D1–D6 DO Data Bits 1 Through 6. 10 D7 (MSB) DO Most Significant Bit, Data Bit 7. 11, 13 DVDD P +5 V Digital Supply. Note: DVDD and AVDD pins should share a common supply on the circuit board. 12 CLK DI Clock Input. 16 VRTS AI Reference Top Bias. Short to VRT for Self-Bias. 17 VRT AI Reference Ladder Top. 23 VRB AI Reference Ladder Bottom. 22 VRBS AI Reference Bottom Bias. Short to VRB for Self-Bias. 14, 15, 18 AVDD P +5 V Analog Supply. Note: DVDD and AVDD pins should share a common supply within 0.5 inches of the AD775. 19 VIN AI Analog Input. Input Span = VRT–VRB. 20, 21 AVSS P Analog Ground. Note: DVSS and AVSS pins should share a common ground within 0.5 inches of the AD775. NOTE Type: AI = Analog Input; DI = Digital Input; DO = Digital Output; P = Power. PIN CONFIGURATION (DIP and SOIC) MAXIMUM RATINGS* Supply Voltage (AVDD, DVDD) . . . . . . . . . . . . . . . . . . . . 7 V Supply Difference (AVDD–DVDD) . . . . . . . . . . . . . . . . . . 0 V Ground Difference (AVSS–DVSS) . . . . . . . . . . . . . . . . . . . 0 V Reference Voltage (VRT, VRB) . . . . . . . . . . . . . . . . VDD to VSS Analog Input Voltage (VIN) . . . . . . . . . . . . . . . . . . VDD to VSS Digital Input Voltage (CLK) . . . . . . . . . . . . . . . . . VDD to VSS Digital Output Voltage (VOH, VOL) . . . . . . . . . . . . VDD to VSS Storage Temperature . . . . . . . . . . . . . . . . . . –55 °C to +150°C *Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and 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 rating conditions for extended periods may affect device reliability. ORDERING GUIDE Temperature Package Package Model Range Description Option AD775JN –20 °C to +75°C 24-Pin 400 Mil Plastic DIP N-24B AD775JR –20 °C to +75°C 24-Pin 300 Mil SOIC R-24A |
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