参数资料
型号: LTC2435IGN#TRPBF
厂商: Linear Technology
文件页数: 32/42页
文件大小: 0K
描述: IC ADC DIFF I/REF 20BIT 16-SSOP
标准包装: 2,500
位数: 20
采样率(每秒): 15
数据接口: MICROWIRE?,串行,SPI?
转换器数目: 2
功率耗散(最大): 1mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-SSOP
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
LTC2435/LTC2435-1
38
24351fc
For more information www.linear.com/LTC2435
applicaTions inForMaTion
// Basic data collection program for the LTC2435 using the
// PIC16F73 microcontroller. Collects data as fast as possible
// and sends it out the serial port at 57600 baud as six
// hexadecimal characters, followed by a carriage return.
// This can be captured with a terminal program and analyzed
// with a spreadsheet using the HEX2DEC function (in Excel.)
//
// Written for the CCS compiler, version 3.049.
////////////////////////////////////////////////////////////////////
#include <16F73.h>
#byte SSPCON = 0x14
// Synchronous serial port control
#byte SSPSTAT = 0x94
// registers.
#bit CKE = SSPSTAT.6
#bit CKP = SSPCON.4
#bit SSPEN = SSPCON.5
#fuses HS,NOWDT,PUT
#use delay(clock=10000000)
// For baud rate calculation.
#use rs232(baud=57600,parity=N,xmit=PIN_C6,rcv=PIN_C7)
// Serial data is sent on pin C6.
#define CS_ PIN_C2
// Chip select connected to pin C2
#define CLOCK PIN_C
// Clock connected to pin C3
#define SDO PIN_C4
// SDO on the LTC2435 connected to pin C4
// (this is SDI on the PIC;
// Master In, Slave Out (MISO) is less ambiguous)
void main() {
// Basic configuration, no bearing on operation of LTC2435
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_CLOCK_DIV_2);
setup_counters(RTCC_INTERNAL,RTCC_DIV_2);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_ccp1(CCP_OFF);
setup_ccp2(CCP_OFF);
// LTC2435 is connected to the processor’s hardware SPI port.
// This sets the port such that data is shifted on clock falling edges and
// valid on rising edges. For a 10 MHz master clock, the SPI clock frequency
// will be 2.5 MHz.
setup_spi(SPI_MASTER|SPI_L_TO_H|SPI_CLK_DIV_4|SPI_SS_DISABLED);
CKP = 0; // Set up clock edges - clock idles low, data changes on
CKE = 1; // falling edges, valid on rising edges.
while(1)
{
output_low(CS_);
// Enable LTC2435
while(input(SDO)) { /* Wait for SDO to fall, indicating end of conversion.*/ }
printf(“%2X”,spi_read(0));
// Read first byte, send 2 hex characters.
printf(“%2X”,spi_read(0));
// Read second byte, send 2 hex characters.
printf(“%2X”,spi_read(0));
/ Read third byte, send 2 hex characters.
printf(“\r”);
// Send carriage return.
output_high(CS_);
// Conversion actually started after last data byte was read,
// but raising CS_ ensures the loop will never lock up waiting for
// a low on SDO if a clock pulse is missed for some reason.
}
Figure 43. A Sample Program for Data Collection from the LTC2435/LTC2435-1
Using the PIC16F73 Microcontroller.
相关PDF资料
PDF描述
MS27656T25B46SLC CONN HSG RCPT 46POS WALL MT SCKT
LTC2435IGN#TR IC CONV A/D 20BIT DIFF 16-SSOP
D38999/20FD97BN CONN HSG RCPT 12POS WALL MT SCKT
LTC2430IGN#TR IC ADC 20BIT DIFFINPUT/REF16SSOP
LTC1096AIS8#TR IC ADC 8BIT SERIAL I/O 5V 8SOIC
相关代理商/技术参数
参数描述
LTC2436-1CGN 功能描述:IC ADC 2CH DIFF-IN 16BIT 16SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率(每秒):15 数据接口:MICROWIRE?,串行,SPI? 转换器数目:1 功率耗散(最大):480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN(5x7) 包装:带卷 (TR) 输入数目和类型:16 个单端,双极;8 个差分,双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC2436-1CGN#PBF 功能描述:IC ADC 2CH DIFF-IN 16BIT 16SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率(每秒):1M 数据接口:串行,SPI? 转换器数目:1 功率耗散(最大):- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘(4x4) 包装:Digi-Reel® 输入数目和类型:8 个单端,单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6
LTC2436-1CGN#TR 功能描述:IC CONV A/D 16B 2CH DIFF 16SSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率(每秒):15 数据接口:MICROWIRE?,串行,SPI? 转换器数目:1 功率耗散(最大):480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN(5x7) 包装:带卷 (TR) 输入数目和类型:16 个单端,双极;8 个差分,双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC2436-1CGN#TRPBF 功能描述:IC CONV A/D 16B 2CH DIFF 16SSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率(每秒):15 数据接口:MICROWIRE?,串行,SPI? 转换器数目:1 功率耗散(最大):480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN(5x7) 包装:带卷 (TR) 输入数目和类型:16 个单端,双极;8 个差分,双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
LTC2436-1CGNPBF 制造商:Linear Technology 功能描述:ADC 16-Bit 2-Channel Differential SSOP16