**Part Number:**ADS8519

Dear All,

I am working with ADS8519 in one of my project.

The ADC ADS8519 is interface with Spartan6 FPGA through SPI Communication.

The issue is whatever Input is given to the ADC , the correspoing data value always an even number

May I know the reason as why it gives always even value.

Following configuration

1. ADS8519 Configured as to Support +/-10V input.

(By giving :

Input to R1in ;

R2in to GND ;

R3in and CAP Short and givern 2.2uf dacap;

REF decap with 2.2uF;).

2. Data output configured as Straight Binary value by pull up this pin SB/BTC#.

3. for your reference i am attaching the schematic.

Experimernt:

1. Short the Input to GND and get the corresponding value as even number always.

2. Given 1V DC volts to the Input and get the corresponding value as even number always.

3. Given 2V DC volts to the Input and get the corresponding value as even number always.

4 Given 5Vpp sine wave with 2Khz frequency to the Input and get the corresponding value as even number always.

5. Given 8Vpp sine wave with 2Khz frequency to the Input and get the corresponding value as even number always.

Please revert me as soon .