APPLICATIONS INFOR
參數資料
型號: LTC1418CN#PBF
廠商: Linear Technology
文件頁數: 9/28頁
文件大小: 0K
描述: IC A/D CONV 14BIT SRL&PAR 28-DIP
標準包裝: 14
位數: 14
采樣率(每秒): 200k
數據接口: 串行,并聯(lián)
轉換器數目: 1
功率耗散(最大): 21.5mW 單極;31.5mW 雙極
電壓電源: 雙 ±
工作溫度: 0°C ~ 70°C
安裝類型: 通孔
封裝/外殼: 28-DIP(0.300",7.62mm)
供應商設備封裝: 28-PDIP
包裝: 管件
輸入數目和類型: 2 個單端,單極;2 個單端,雙極;1 個差分,單極;1 個差分,雙極
產品目錄頁面: 1346 (CN2011-ZH PDF)
配用: DC178A-ND - BOARD SAR ADC LTC1418
17
LTC1418
APPLICATIONS INFORMATION
WU
U
Figure 12d. Suggested Evaluation Circuit Board—Solder Side Layout
1418 F12d
Bypass capacitors must be located as close to the pins as
possible. The traces connecting the pins and the bypass
capacitors must be kept short and should be made as wide
as possible.
Example Layout
Figures 12a, 12b, 12c and 12d show the schematic and
layout of a suggested evaluation board. The layout demon-
strates the proper use of decoupling capacitors and ground
plane with a 2-layer printed circuit board.
DIGITAL INTERFACE
The LTC1418 can operate in serial or parallel mode. In
parallel mode the ADC is designed to interface with micro-
processors as a memory mapped device. The CS and RD
control inputs are common to all peripheral memory
interfacing. In serial mode only four digital interface lines
are required, SCLK, CONVST, EXTCLKIN and DOUT. SCLK,
the serial data shift clock can be an external input or
supplied by the LTC1418 internal clock.
Internal Clock
The ADC has an internal clock. In parallel output mode the
internal clock is always used as the conversion clock. In
serial output mode either the internal clock or an external
clock may be used as the conversion clock (see Figure 20).
The internal clock is factory trimmed to achieve a typical
conversion time of 3.4
s and a maximum conversion time
over the full operating temperature range of 4
s. No exter-
nal adjustments are required, and with the guaranteed maxi-
mum acquisition time of 1
s, throughput performance of
200ksps is assured.
Power Shutdown
The LTC1418 provides two power shutdown modes, nap
and sleep, to save power during inactive periods. The nap
mode reduces the power by 80% and leaves only the
digital logic and reference powered up. The wake-up time
from nap to active is 500ns (see Figure 13a). In sleep
mode all bias currents are shut down and only leakage
current remains— about 2
A. Wake-up time from sleep
相關PDF資料
PDF描述
AD7714ARS-5REEL IC ADC 24BIT SIGMA-DELTA 28SSOP
MS27513E24A61P CONN RCPT 61POS BOX MNT W/PINS
AD7714AR-5REEL IC ADC 24BIT SIGMA-DELTA 24-SOIC
SA572DR2G IC COMPANDOR 2CHAN GAIN 16-SOIC
SP3085EEN-L/TR IC TXRX RS485/RS422 ESD 8NSOIC
相關代理商/技術參數
參數描述
LTC1418IG 功能描述:IC A/D CONV 14BIT SRL&PAR 28SSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
LTC1418IG#PBF 功能描述:IC A/D CONV 14BIT SRL&PAR 28SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
LTC1418IG#TR 功能描述:IC A/D CONV 14BIT SRL&PAR 28SSOP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
LTC1418IG#TRPBF 功能描述:IC A/D CONV 14BIT SRL&PAR 28SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
LTC1418IG-TR 制造商:Linear Technology 功能描述: