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RC0603JR-070RL Datasheet(PDF) 11 Page - Texas Instruments |
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RC0603JR-070RL Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 47 page  www.ti.com ADS130E08EVM Daughter-Card Hardware Overview 3 ADS130E08EVM Daughter-Card Hardware Overview CAUTION Many of the components on the ADS130E08EVM are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling procedures when unpacking and handling the EVM, including the use of a grounded wrist strap, bootstraps, or mats at an approved ESD workstation. An electrostatic smock and safety glasses should also be worn. The ADS130E08EVM-PDK board is a four-layer circuit board. The board layout and schematics are appended to the end of this document. The ADS130E08EVM-PDK is configured to be used with the TI MMB0 data converter evaluation platform. The key features of the ADS130E08 system on a chip (SOC) are: • Eight integrated instrumentation amplifiers (INAs) and eight, 16-bit, high-resolution ADCs • Low power consumption • 3-V to 5-V unipolar or bipolar analog supply, and 1.8-V to 3.3-V digital supply • SPI data interface The following sections explain some of the hardware settings possible with the EVM for evaluating the ADS130E08 under various test conditions. 3.1 Power Supply The ADS130E08EVM mounts on the MMB0 board with connectors J1, J2, and J3. The main power supplies (+5 V, +3.3 V, and +1.8 V) for the front-end board are supplied by the host MMB0 board through connector J3. All other power supplies required for the front-end board are generated onboard by power management devices. The ADS130E08 operates in unipolar mode using a +3.0-V to +5.0-V analog supply (AVDD/AVSS) and a +1.8-V to +3.3-V digital supply (DVDD), or in bipolar mode using the onboard analog supply (±1.5 V to ±2.5 V). The power consumption of the front-end board is measured by using the JP3 jumper. Power down the ADS130E08 by shorting jumper JP4. Test points TP4, TP5, TP6, TP7, TP8, TP9, TP10, and TP13 are provided to verify that the host power supplies are correct. The corresponding voltages are shown in Table 1. Table 1. Power-Supply Test Points Test Point Voltage TP7 +5.0 V TP4 –4.96 V TP9 +1.8 V TP10 +3.3 V TP5 +3.0 V TP13 +2.5 V TP6 –2.5 V TP8 GND The front-end board must be properly configured in order to achieve the various power-supply schemes. The default power-supply setting for the ADS130E08EVM is a bipolar analog supply of ±2.5 V, and there are onboard options to switch to a unipolar analog supply of +3 V. The digital supply (DVDD) is selectable to either +3.3 V or +1.8 V. Table 2 shows the board and component configurations for each analog power- supply scheme. Table 3 shows the board configurations for the digital supply. Note that the EVM is shipped with the analog supply set to ±2.5 V and digital supplies set to 3.3 V. 11 SBAU202 – June 2012 Performance Demonstration Kit for the ADS130E08 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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