Analog Devices UG-442 User Manual Download Page 13

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Evaluation Board User Guide

UG-442

Rev. C | Page 13 of 16

082

30-

Figure 12.

AD5422

LFCSP Evaluation Board Component Placement

823

Figure 13.

AD5422

LFCSP Evaluation Board Solder Side PCB

823

Figure 14.

AD5422

LFCSP Evaluation Board Component Side PCB

Summary of Contents for UG-442

Page 1: ...es exist for the AD5422 24 lead TSSOP and 40 lead LFCSP therefore two corresponding evaluation boards are available DEVICE DESCRIPTION The AD5422 is a low cost precision fully integrated 16 bit conver...

Page 2: ...14 REVISION HISTORY 10 13 Rev B to Rev C Change to Figure 6 9 Change to Figure 8 11 Changes to C3 Supplier Number Column Table 5 14 3 13 Rev A to Rev B Change to Control Register Section and Added Fi...

Page 3: ...o connect GND and DGND elsewhere in the system to avoid ground loop problems Each supply is decoupled to the relevant ground plane with 10 F and 0 1 F capacitors Each device supply pin is again decoup...

Page 4: ...selects the evaluation board to be controlled by the PC via the USB port Position B selects the evaluation board to be controlled by an external source via J8 LK8 This link selects the digital supply...

Page 5: ...than 16 5 V Position B selects the V input as the negative power supply source use only if the power supply applied to AVSS input is greater in magnitude than 16 5 V LK17 This link connects the DVCC p...

Page 6: ...complete power up the AD5422 evaluation board as described in the Power Supplies section 3 Connect the board to the USB port of the PC using the supplied cable 4 When the evaluation board is detected...

Page 7: ...Clear Pin In the Clear Clear Select Pins section you can change the state of the CLEAR pin by clicking the CLEAR button Likewise you can change the state of the CLEAR SELECT pin by clicking the CLEAR...

Page 8: ...U2 35 PA2 SLOE 34 PA1 INT1 33 PA0 INT0 31 CTL2 FLAGC 30 CTL1 FLAGB 29 CTL0 FLAGA 25 PB7 FD7 24 PB6 FD6 23 PB5 FD5 22 PB4 FD4 3 AVCC 7 VCC 11 VCC 17 VCC 27 VCC 32 VCC 43 VCC 55 VCC 6 AGND 10 GND 12 GND...

Page 9: ...TP11 3 2 4 V 7 V 6 U9 AD820 R12 5 6k R13 39k C47 0 1 F C48 0 1 F C49 10 F 20 C50 10 F 20 C51 680nF R14 10k R15 4 7k J9 1 J10 1 J11 1 J12 1 J13 1 LK17 D2 R26 1k R27 LK18 C9 10 F 20 C4 0 1 F C7 10 F C11...

Page 10: ...33 PA0 INT0 31 CTL2 FLAGC 30 CTL1 FLAGB 29 CTL0 FLAGA 25 PB7 FD7 24 PB6 FD6 23 PB5 FD5 22 PB4 FD4 3 AVCC 7 VCC 11 VCC 17 VCC 27 VCC 32 VCC 43 VCC 55 VCC 6 AGND 10 GND 12 GND 26 GND 28 GND 41 GND 53 G...

Page 11: ...2 DIN 3 DGND 4 AGND 5 REFIN OUT 6 VSS 7 VIN0 8 VIN1 9 VDD 10 VCC 11 VDRIVE 12 DOUT 13 DGND 14 SCLK U6 AD7321 B A LK16 C43 0 1 F C44 0 1 F C45 10 F 20 C46 10 F 20 TP8 TP9 TP10 TP11 3 2 4 V 7 V 6 U9 AD...

Page 12: ...Guide Rev C Page 12 of 16 08230 008 Figure 9 AD5422 TSSOP Evaluation Board Component Placement 08230 009 Figure 10 AD5422 TSSOP Evaluation Board Solder Side PCB 08230 010 Figure 11 AD5422 TSSOP Evalua...

Page 13: ...442 Rev C Page 13 of 16 08230 011 Figure 12 AD5422 LFCSP Evaluation Board Component Placement 08230 012 Figure 13 AD5422 LFCSP Evaluation Board Solder Side PCB 08230 013 Figure 14 AD5422 LFCSP Evalua...

Page 14: ...capacitor FEC 197099 10 C19 C36 C37 C38 C42 C45 C46 C49 C50 C56 10 F SMD tantalum capacitor 1 C31 2 2 F 10 V Y5V ceramic capacitor FEC 9402098 2 C32 C33 22 pF 50 V NPO ceramic capacitor FEC 722005 1...

Page 15: ...Evaluation Board User Guide UG 442 Rev C Page 15 of 16 NOTES...

Page 16: ...uation Board shall all be considered the confidential and proprietary information of ADI Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason Upo...