LTC2483CDD datasheet(28/32 Pages) LINER

28 / 32 page

LTC2483

2483f

APPLICATIO S I FOR ATIO

LTC248X.h

Processor setup and

Lots of useful defines for configuring the LTC2481, LTC2483, and LTC2485.

#include <16F73.h>

// Device

#use delay(clock=6000000)

// 6MHz clock

//#fuses NOWDT,HS, PUT, NOPROTECT, NOBROWNOUT

// Configuration fuses

#rom 0x2007={0x3F3A} // Equivalent and more reliable fuse config.

#use I2C(master, sda=PIN_C5, scl=PIN_C3, SLOW)// Set up i2c port

#include “PCM73A.h”

// Various defines

#include “lcd.c”

// LCD driver functions

#define READ

0x01

// bitwise OR with address for read or write

#define WRITE

0x00

#define LTC248XADDR 0b01001000

// The one and only LTC248X in this circuit,

// with both address lines floating.

// Useful defines for the LTC2481 and LTC2485 - OR them together to make the

// 8 bit config word.

// These do NOT apply to the LTC2483.

// Select gain - 1 to 256 (also depends on speed setting)

// Does NOT apply to LTC2485.

#define GAIN1

0b00000000

// G = 1

(SPD = 0), G = 1

(SPD = 1)

#define GAIN2

0b00100000

// G = 4

(SPD = 0), G = 2

(SPD = 1)

#define GAIN3

0b01000000

// G = 8

(SPD = 0), G = 4

(SPD = 1)

#define GAIN4

0b01100000

// G = 16

(SPD = 0), G = 8

(SPD = 1)

#define GAIN5

0b10000000

// G = 32

(SPD = 0), G = 16

(SPD = 1)

#define GAIN6

0b10100000

// G = 64

(SPD = 0), G = 32

(SPD = 1)

#define GAIN7

0b11000000

// G = 128 (SPD = 0), G = 64

(SPD = 1)

#define GAIN8

0b11100000

// G = 256 (SPD = 0), G = 128 (SPD = 1)

// Select ADC source - differential input or PTAT circuit

#define VIN

0b00000000

#define PTAT

0b00001000

// Select rejection frequency - 50, 55, or 60Hz

#define R50

0b00000010

#define R55

0b00000000

#define R60

0b00000100

// Select speed mode

#define SLOW

0b00000000 // slow output rate with autozero

#define FAST

0b00000001 // fast output rate with no autozero

LTC2483CDD Datasheet(PDF) 28 Page - Linear Technology

LTC2483CDD Datasheet(HTML) 28 Page - Linear Technology

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