#ifndef __PGA_H
#define __PGA_H

void PGA_Open(unsigned char nData);

#define PGA_GAIN_10X      0x02
#define PGA_GAIN_20X      0x00
#define PGA_ENABLE        0x01 
#define PGA_OUT           0x08
#define PGA_OUT_FILTER    0x0C

#define PGA_CURRENT_0UA   0x00
#define PGA_CURRENT_16UA  0x20
#define PGA_CURRENT_30UA0 0x30
#define PGA_BY_PASS       0x40

#endif
