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ADS8380IBRHPR Datasheet(PDF) 7 Page - Burr-Brown (TI) |
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ADS8380IBRHPR Datasheet(HTML) 7 Page - Burr-Brown (TI) |
7 / 29 page www.ti.com PIN ASSIGNMENTS ADS8380 AGND +VBD BDGND +VA REFM 5 6 7 4 1 2 3 17 16 15 18 21 20 19 SB/2C AGND AGND +VA AGND AGND AGND +VA +VA ADS8380 SLAS387A – NOVEMBER 2004 – REVISED DECEMBER 2004 TOP VIEW TERMINAL FUNCTIONS PIN I/O DESCRIPTION NAME NO. AGND 2, 4, 5, 15, – Analog ground pins. AGND must be shorted to analog ground plane below the device. 18, 19 BDGND 21 – Digital ground for all digital inputs and outputs. BDGND must be shorted to the analog ground plane below the device. BUSY 22 O Status output. This pin is high when conversion is in progress. CONVST 25 I Convert start. This signal is qualified with CS internally. CS 26 I Chip select FS 27 I Frame sync. This signal is qualified with CS internally. +IN 11 I Noninverting analog input channel –IN 12 I Inverting analog input channel NC 10, 13 – No connection PD 28 I Power down. Device resets and powers down when this signal is high. REFIN 8 I Reference (positive) input. REFIN must be decoupled with REFM pin using 0.1- µF bypass capacitor and 1- µF storage capacitor. REFM 7 I Reference ground. To be connected to analog ground plane. REFOUT 9 O Internal reference output. Shorted to REFIN pin only when internal reference is used. SB/2C 1 I Straight binary or 2's complement output data format. When low the device output is straight binary format; when high the device output is 2's complement format. See Table 1. SCLK 24 I Serial clock. Data is shifted onto SDO with the rising edge of this clock. This signal is qualified with CS internally. SDO 23 O Serial data out. All bits except MSB are shifted out at the rising edge of SCLK. +VA 3, 6, 14, – Analog power supplies 16, 17 +VBD 20 – Digital power supply for all digital inputs and outputs. 7 |
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