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AD7861AP Datasheet(PDF) 3 Page - Analog Devices |
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AD7861AP Datasheet(HTML) 3 Page - Analog Devices |
3 / 6 page AD7861 REV. B –3– Table I. AD7861 Timing Parameters (TA = –40 C to +85 C and VDD = +5 V unless otherwise noted) Number Symbol AD7861 Timing Requirements Min Max Units 1tsucsb_rdb CS Low Before Falling Edge of RD 0– ns 2tsuaddr_rdb ADDR Valid Before Falling Edge of RD 0– ns 3tdlyrdb_data DATA Valid After Falling Edge of RD –25 ns 4tpwlrdb RD Pulsewidth, Low 25 – ns 5tpwhrdb RD Pulsewidth, High 25 – ns 6thdrdb_data DATA Hold After Rising Edge of RD 10 – ns 7thdrdb_addr ADDR Hold After Rising Edge of RD 0– ns 8thdrdb_csb CS Hold After Rising Edge of RD 0– ns 9tperclk CLK Period 80 160 ns 10 tpwhclk CLK Pulsewidth, High 20 – ns 11 tpwlclk CLK Pulsewidth, Low 20 – ns 12 tpwlresetb RESET Pulsewidth, Low 2 × tperclk – ns 7, 8 3 1, 2 CLK CS A0–A1 RD DATA BUS 6 4 5 Figure 1. Clock and Reset Timing 9 10 11 CLK 12 CLK RESET Figure 2. Write Cycle Timing Diagram 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 AD7861 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. ORDERING GUIDE Model Temperature Range Package Option AD7861AP –40 °C to +85°C P-44A ABSOLUTE MAXIMUM RATINGS* Supply Voltage (VDD) . . . . . . . . . . . . . . . . . . –0.3 V to +7.0 V Digital Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD Analog Input Voltage . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD Analog Reference Input Voltage . . . . . . . . . . . –0.3 V to VDD Digital Output Voltage Swing . . . . . . . . . . . . . . –0.3 V to VDD Analog Reference Output Swing . . . . . . . . . . . –0.3 V to VDD Operating Temperature . . . . . . . . . . . . . . . . . –40 °C to +85°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +280 °C *Stresses above those listed under Absolute Maximum Ratings may cause perma- nent 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 section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. WARNING! ESD SENSITIVE DEVICE |
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