AD7986: FPGA source code of AD7986 EVB

Question I would like to use AD7986 EVB in their project. I am searching for the FPGA source code of this board. Answer See the attached FPGA code for the AD7986 EVB.

AD7986 External reference (Vref) typo? and connection queries

Q using the AD7986 with an external reference configuration (with a +5V ADR435 ref) with PDREF=high and REFIN=low. first question is : how you connect my external reference buffer (AD8031) ? The REF pin and the BVDD pin should be connected together to the output of the external buffer (same potential) or the BVDD pin should be only connected to a +5V power supply ? It's not really clear in the data sheet. second question is : Table 7 of the data sheet, VREF is equal to +5V and the FSR = +/-4.096V. On the first page of the data sheet, the true differential analog input voltage range is +/-VREF with VREF up to 5.0V. With the external reference configuration , what is the max input voltage range +/-5V or +/-4.096V ? A (Ans 1). For an external reference configuration (with a +5V). The external reference buffer must be connected to the BVDD pin. This is is stated in table 6, pin 19,20 descriptions column, (page 8, of datasheet rev.B). (Ans 2). Apologies, There appears a slight confusion here. Typically the Common-Mode Input Range VREF/2. see table 2. Vref=5V in table 7 is a typo, it should be Vref=4.096V. The max input range is +/-Vref for the external reference.

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AD7986 Production
The AD7986 is an 18-bit, 2 MSPS successive approximation, analog-to-digital converter (ADC). It contains a low power, high speed, 18-bit sampling ADC,...
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Table of Contents

+Documents
+General: FAQ
+AD1139: FAQ
+AD7091R Conversion Result Change
+AD1556: FAQ
+AD1580: FAQ
+AD1582: FAQ
+AD2S1200: FAQ
+AD2S1205: FAQ
+AD2S1210: FAQ
+AD2S75: FAQ
+AD2S80: FAQ
+AD2S80A: FAQ
+AD2S82A: FAQ
+AD2S83: FAQ
+AD2S90: FAQ
+AD2S99: FAQ
+AD4110-1: FAQ
+AD411x: FAQ
+AD5940: FAQ
+AD598: FAQ
+AD650: FAQ
+AD652: FAQ
+AD654: FAQ
+AD7091: FAQ
+AD7091R-X: FAQ
+AD711: FAQ
+AD7124-4: FAQ
+AD7124-8: FAQ
+AD7134: FAQ
+AD713: FAQ
+AD7142: FAQ
+AD7147: FAQ
+AD7148: FAQ
+AD7150: FAQ
+AD7151: FAQ
+AD7175-2: FAQ
+AD7176-2: FAQ
+AD7176: FAQ
+AD717x: FAQ
+AD7190: FAQ
+AD7192: FAQ
+AD7193: FAQ
+AD7195: FAQ
+AD719x: FAQ
+AD7265: FAQ
+AD7266: FAQ
+AD7280: FAQ
+AD7291: FAQ
+AD7298: FAQ
+AD7305: FAQ
+AD7321: FAQ
+AD7323: FAQ
+AD7328: FAQ
+AD7366-5: FAQ
+AD7367: FAQ
+AD736ARZ: FAQ
+AD737: FAQ
+AD738x : FAQ
+AD7398: FAQ
+AD7400A: FAQ
+AD7401: FAQ
+AD7403: FAQ
+AD74111: FAQ
+AD7415: FAQ
+AD7416: FAQ
+AD7417: FAQ
+AD7418: FAQ
+AD7450: FAQ
+AD7475: FAQ
+AD7484: FAQ
+AD7490: FAQ
+AD7492: FAQ
+AD75019: FAQ
+AD7503: FAQ
+AD7541A: FAQ
+AD7546: FAQ
AD7547: FAQ
+AD7568: FAQ
+AD7578: FAQ
+AD7606-4: FAQ
+AD7606: FAQ
+AD7606B: FAQ
+AD7606C: FAQ
+AD7608: FAQ
+AD7616 FAQ
+AD7616-P: FAQ
+AD7621: FAQ
+AD7625: FAQ
+AD7626: FAQ
+AD7631: FAQ
+AD7653: FAQ
+AD7654: FAQ
+AD7655: FAQ
+AD7656: FAQ
+AD7657-1: FAQ
+AD7663: FAQ
+AD7674: FAQ
+AD7675: FAQ
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+AD7682: FAQ
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+AD7712: FAQ
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+AD7714YN: FAQ
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+AD7718: FAQ
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+AD7805: FAQ
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+AD780: FAQ
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-AD7986: FAQ
- AD7986 External reference (Vref) typo? and connection queries
- AD7986: FPGA source code of AD7986 EVB
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AD7398 SPI Voltage vs VCC
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AD7660: FAQ
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+ADAQ4003: FAQ
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+ADAQ8092 FAQ
+DC590, DC2026, QuikEval: FAQs
+EVAL-AD7768-4FMCZ: FAQ
+Legacy LTC - Sigma Delta ADCs FAQ
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+MAX1028: FAQ
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+MAX1037EKA+: FAQ
+MAX11040GUU+: FAQ
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+MAX11046 16-BIT AD: FAQ
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