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ADAQ7980 Datasheet(PDF) 9 Page - Analog Devices |
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ADAQ7980 Datasheet(HTML) 9 Page - Analog Devices |
9 / 49 page Data Sheet ADAQ7980/ADAQ7988 Rev. 0 | Page 9 of 49 Parameter Test Conditions/Comments Min Typ Max Unit Input Current Low (IIL) −1 +1 µA High (IIH) −1 +1 µA DIGITAL OUTPUTS Data Format Serial 16 bits straight binary Pipeline Delay Conversion results available immediately after completed conversion VOL ISINK = 500 µA 0.4 V VOH ISOURCE = −500 µA VIO − 0.3 V POWER-DOWN SIGNALING ADC Driver/Reference Buffer PD_AMP, PD_REF Voltage Low Powered down <1.5 V High Enabled >1.9 V Turn-Off Time 50% of PD_AMP, PD_REF to <10% of enabled quiescent current 0.9 1.25 µs Turn-On Time Specified performance 2 7.25 µs Dynamic Power Scaling Period Specified performance 10 µs LDO PD_LDO Voltage Low Powered down 1.06 1.12 1.18 V High Enabled 1.15 1.22 1.30 V PD_LDO Logic Hysteresis 100 mV Turn-Off Time 2.2 µF capacitive load 460 650 µs Turn-On Time 370 425 µs POWER REQUIREMENTS VDD 3.5 5 10 V LDO Voltage Accuracy ILDO_OUT = 10 mA, TA = 25°C −0.8 +0.8 % 100 µA < ILDO_OUT < 100 mA, VDD = 3.5 V to 10 V −1.8 +1.8 % LDO Line Regulation VDD = 3.5 V to 10 V −0.015 +0.015 %/V LDO Load Regulation ILDO_OUT = 100 µA to 100 mA 0.002 0.004 %/mA LDO Start-Up Time VLDO_OUT = 2.5 V 380 µs LDO Current-Limit Threshold 250 360 460 mA LDO Thermal Shutdown Threshold TJ rising 150 °C Hysteresis 15 °C LDO Dropout Voltage ILDO_OUT = 10 mA 30 60 mV ILDO_OUT = 100 mA 200 420 mV V+ 3.7 5 V− + 10 V V− V+ − 10 0 +0.1 V VIO 1.7 5.5 V Total Standby Current1, 2 Static, all devices enabled 1.1 1.7 mA ADC driver, REF buffer disabled 50 103 µA ADC driver, REF buffer, LDO disabled 7 23 µA ADAQ7980 Current Draw 1 MSPS VIO 0.3 0.34 mA V+/V− 1.3 2.0 mA VDD 1.45 1.6 mA |
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