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ADC12L080 Datasheet(PDF) 4 Page - Texas Instruments |
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ADC12L080 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 31 page ADC12L080 SNAS200B – OCTOBER 2004 – REVISED MARCH 2013 www.ti.com Pin Descriptions and Equivalent Circuits (continued) Pin No. Symbol Equivalent Circuit Description 14–19, Digital data output pins that make up the 12-bit conversion results. D0–D11 22–27 D0 is the LSB, while D11 is the MSB of the output word. ANALOG POWER Positive analog supply pins. These pins should be connected to a quiet +3.3V source and bypassed to AGND with 0.1 µF low ESL 5, 6, 29 VA capacitors located within 1 cm of these power pins, and with a 10 µF capacitor. 4, 7, 28 AGND The ground return for the analog supply. DIGITAL POWER Positive digital supply pin. This pin should be connected to the same quiet +3.3V source as is VA and bypassed to DGND with a 0.1 µF 13 VD monolithic capacitor in parallel with a 10 µF capacitor, both located within 1 cm of the power pin. 9, 12 DGND The ground return for the digital supply. Positive digital supply pin for the ADC12L080's output drivers. This pin should be connected to a voltage source in the range indicated in the Operating Ratings table and be bypassed to DR GND with a 0.1 µF capacitor. If the supply for this pin is different from the supply 21 VDR used for VA and VD, it should also be bypassed with a 10 µF capacitor. The voltage at this pin should never exceed the voltage on VD by more than 300 mV. All bypass capacitors should be located within 1 cm of the supply pin. The ground return for the digital supply for the ADC12L080's output drivers. This pin should be connected to the system digital ground, 20 DR GND but not be connected in close proximity to the ADC12L080's DGND or AGND pins. See LAYOUT AND GROUNDING for more details. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 4 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: ADC12L080 |
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