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AD2S93 Datasheet(PDF) 4 Page - Analog Devices |
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AD2S93 Datasheet(HTML) 4 Page - Analog Devices |
4 / 12 page –4– REV. A AD2S93 ORDERING GUIDE Temperature Package Model Range Linearity Option AD2S93AP –40 °C to +85°C 0.1% P-28A AD2S93BP –40 °C to +85°C 0.05% P-28A PIN DESIGNATIONS Pin No. Mnemonic Description 1 AGND Analog Ground. 2 DIFF Output of Signal Input Preamplifier. 3 GAIN Connect GAIN Pin to DIFF for nominal × 1. Gains greater than 1 can be resistively scaled. Do not leave unconnected. 4 LOS Denotes A or B lines loss of connection and/or loss of reference to transducer or converter. 5 DATA 16-bit serial data output 13 bits of absolute position information plus overrange and underrange plus LOS. 6 SCLK Serial Clock. Maximum rate = 2 MHz. 7 CS Chip Select. Loads serial interface with current positional information and enable output. 9, 12 UNR, OVR Two pins that denote whether the input signals are underrange or overrange. 10 CLKOUT Updates every LSB. 13 NULL Denotes Null Position. 14 DIR Indicates direction. DIR is HI for positive displacement and LO for negative displacement. 15 DGND Digital Ground. 16 V SS Negative Power Supply –5.0 V dc ± 5%. 17 V DD Positive Power Supply +5.0 V dc ± 5%. 18 DEMODOUT Output of the Phase Sensitive Demodulator. 19 DEMODIN Input to Phase Sensitive Demodulator. 20 ACERROR AC Error Output. 21 VCO GAIN Sets the VCO gain internally. Connect to VEL for 2400 LSB/s. Disconnect for 800 LSB/s. 22 INTIN Determines system dynamics connect C and RC (serial) parallel combination across INTIN and VEL to determine loop dynamics. 23 VEL Analog Velocity Output. 24 REF Single ended input for fixed amplitude reference. 27, 28 B, A Uncommitted differential inputs for the A, B signal inputs. 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 AD2S93 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 RECOMMENDED OPERATING CONDITIONS Power Supply Voltage (VDD–VSS) . . . . . . . . . . . ± 5 V dc ± 5% Analog Input Voltage (A, B) . . . . . . . . . . . . . . 1 V rms ± 10% Analog Reference Input (REF) . . . . . . . . . . . . 2 V rms ± 10% Signal and Reference Harmonic Distortion . . . . . . . . . . . <10% Operating Temperature Range Industrial (AP, BP) . . . . . . . . . . . . . . . . . . . –40 °C to +85°C ABSOLUTE MAXIMUM RATINGS* VDD to AGND . . . . . . . . . . . . . . . . . . . –0.3 V dc to + 7.0 V dc VSS to AGND . . . . . . . . . . . . . . . . . . . +0.3 V dc to – 7.0 V dc AGND to DGND . . . . . . . . . . . . –0.3 V dc to VDD + 0.3 V dc Analog Inputs to AGND REF . . . . VSS – 0.3 V to VDD + 0.3 V A, B . . . . . . . . . . . . . . . . . . . . . . . . . VSS – 0.3 V to VDD + 0.3 V Analog Output to AGND VEL . . . . . . . . . . . . . . . . VSS to VDD Digital Inputs to DGND CS , SCLK . . . . . . . . . . . . . . . . . . . . . –0.3 V to VDD + 0.3 V Digital Outputs to DGND NULL, DIR, CLKOUT, DATA . . . . –0.3 V to VDD + 0.3 V Operating Temperature Range Industrial (A, B) . . . . . . . . . . . . . . . . . . . . . –40 °C to +85°C Lead Temperature (Soldering 10 sec) . . . . . . . . . . . . . +300 °C Power Dissipation to +75 °C . . . . . . . . . . . . . . . . . . +100 mW Derates above +75 °C by . . . . . . . . . . . . . . . . . . . . . 10 mW/°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 section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. NC = NO CONNECT NC REF VCOGAIN ACERROR DEMODIN VEL INTIN DATA SCLK UNR CLKOUT NC CS NC 26 27 28 4 2 3 15 18 17 16 12 14 13 25 24 21 20 19 23 22 TOP VIEW (Not to Scale) 1 5 6 9 10 11 7 8 AD2S93 |
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