參數(shù)資料
型號(hào): DC955A
廠商: Linear Technology
文件頁數(shù): 21/34頁
文件大小: 0K
描述: BOARD DELTA SIGMA ADC LTC2483
軟件下載: QuikEval System
設(shè)計(jì)資源: DC955A Design File
DC955A Schematic
標(biāo)準(zhǔn)包裝: 1
系列: Easy Drive™, QuikEval™
ADC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 6.8
數(shù)據(jù)接口: I²C,串行
工作溫度: 0°C ~ 70°C
已用 IC / 零件: LTC2483
已供物品:
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LTC2483
2483fc
applicaTions inFormaTion
/*
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 “l(fā)cd.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
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