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MAX5887EGK Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX5887EGK Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 18 page 3.3V, 14-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs _______________________________________________________________________________________ 9 Analog Outputs (IOUTP, IOUTN) The MAX5887 outputs two complementary currents (IOUTP, IOUTN) that can be operated in a single- ended or differential configuration. A load resistor can convert these two output currents into complementary single-ended output voltages. The differential voltage existing between IOUTP and IOUTN can also be con- verted to a single-ended voltage using a transformer or a differential amplifier configuration. If no transformer is used, the output should have a 50Ω termination to the analog ground and a 50Ω resistor between the outputs. Although not recommended for single-ended operation, because of additional noise pickup from the ground 1.2V REFERENCE CURRENT-STEERING DAC FUNCTION SELECTION BLOCK AGND SEL0 DGND DVDD REFIO FSADJ CLKN CLKP PD AVDD IOUTP IOUTN SEGMENT SHUFFLING/LATCH DECODER LVDS RECEIVER/INPUT LATCH 14 DIFFERENTIAL DIGITAL INPUTS B0 THROUGH B13 MAX5887 Figure 1. Simplified MAX5887 Block Diagram RSET (k Ω) FULL-SCALE CURRENT IOUT (mA) REFERENCE CURRENT IREF (µA) CALCULATED 1% EIA STD OUTPUT VOLTAGE VIOUTP/N* (mVP-P) 2 62.5 19.2 19.1 100 5 156.25 7.68 7.5 250 10 312.5 3.84 3.83 500 15 468.75 2.56 2.55 750 20 625 1.92 1.91 1000 Table 1. IOUT and RSET Selection Matrix Based on a Typical 1.200V Reference Voltage *Terminated into a 50Ω load. |
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