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AD8402 Datasheet(PDF) 4 Page - Analog Devices |
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AD8402 Datasheet(HTML) 4 Page - Analog Devices |
4 / 16 page REV. 0 AD5207 –4– 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 AD5207 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. WARNING! ESD SENSITIVE DEVICE ABSOLUTE MAXIMUM RATINGS 1 (TA = 25 °C, unless otherwise noted) VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3, +7 V VSS to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0, –3 V VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V VA, VB, VW to GND . . . . . . . . . . . . . . . . . . . . . . . . . . VSS, VDD IMAX 2 (A, B, W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA Digital Inputs and Output Voltage to GND . . 0 V, VDD + 0.3 V Operating Temperature Range . . . . . . . . . . –40 °C to +125°C Maximum Junction Temperature (TJ Max) . . . . . . . . . . 150 °C Storage Temperature . . . . . . . . . . . . . . . . . . –65 °C to +150°C Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300 °C Thermal Resistance 3 θJA, TSSOP-14 . . . . . . . . . . . . . 206°C/W NOTES 1 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. 2 Max current is bounded by the maximum current handling of the switches, maximum power dissipation of the package, and maximum applied voltage across any two of the A, B, and W Terminals at a given resistance. Please refer to TPC 22 for detail. 3 Package Power Dissipation = (T J Max–TA)/ θ JA. PIN FUNCTION DESCRIPTIONS Pin Mnemonic Description 1VSS Negative Power Supply, specified for opera- tion from 0 V to –2.7 V. 2 B2 Terminal B of RDAC#2. 3 A2 Terminal A of RDAC#2. 4 W2 Wiper, RDAC#2, addr = 12 5 DGND Digital Ground. 6 SHDN Active Low Input. Terminal A open-circuit and Terminal B shorted to Wiper. Shut- down controls both RDACs #1 and #2. 7 CS Chip Select Input, Active Low. When CS returns high, data in the serial input register is decoded, based on the address bit, and loaded into the corresponding RDAC register. 8 SDI Serial Data Input. MSB is loaded first. 9 SDO Serial Data Output. Open Drain transistor requires pull-up resistor. 10 CLK Serial Clock Input. Positive Edge Triggered. 11 VDD Positive Power Supply. Specified for opera- tion at 2.7 V to 5.5 V. 12 W1 Wiper, RDAC #1, addr = 02. 13 A1 Terminal A of RDAC #1. 14 B1 Terminal B of RDAC #1. Table I. Serial-Data Word Format ADDR DATA B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 MSB LSB 2 9 2 8 2 7 2 0 NOTES ADDR(RDAC1) = 00; ADDR(RDAC2 = 01). Data loads B9 first into SDI pin. PIN CONFIGURATION TOP VIEW (Not to Scale) 14 13 12 11 10 9 8 1 2 3 4 5 6 7 B1 VSS AD5207 A1 B2 W1 A2 VDD W2 CLK DGND SDO SHDN SDI CS ORDERING GUIDE Temperature Package Package Qty Per Branding Model k Range Description Option Container Information * AD5207BRU10-REEL7 10 –40 °C to +125°C TSSOP-14 RU-14 1,000 B10 AD5207BRU50-REEL7 50 –40 °C to +125°C TSSOP-14 RU-14 1,000 B50 AD5207BRU100-REEL7 100 –40 °C to +125°C TSSOP-14 RU-14 1,000 B100 *Three lines of information appear on the device. Line 1 lists the part number; Line 2 includes branding information and the ADI logo, and Line 3 contains the date code YYWW. |
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