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參數(shù)資料
| 型號(hào)： | LTC1286 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 串行ADC |
| 英文描述： | 12.5 ksps,Micropower Sampling 12-Bit A/D Converters In S0-8 Packages(12.5 ksps,12位,采樣模數(shù)轉(zhuǎn)換器(SO-8封裝)) |
| 中文描述： | 12.5 ksps的，微功耗采樣12位A / D轉(zhuǎn)換器于S0 - 8封裝（12.5 ksps的，12位，采樣模數(shù)轉(zhuǎn)換器（以SO - 8封裝）） |
| 文件頁數(shù)： | 15/24頁 |
| 文件大?。?/td> | 286K |
| 代理商： | LTC1286 |
15
LTC1286/LTC1298
APPLICATIO
I
FOR
ATIO
U
W
U
U
BOARD LAYOUT CONSIDERATIONS
Grounding and Bypassing
The LTC1286/LTC1298 are easy to use if some care is
taken. They should be used with an analog ground plane
and single point grounding techniques. The GND pin
should be tied directly to the ground plane.
The V
CC
pin should be bypassed to the ground plane with
a 10
μ
F tantalum capacitor with leads as short as possible.
If the power supply is clean, the LTC1286/LTC1298 can
also operate with smaller 1
μ
F or less surface mount or
ceramic bypass capacitors. All analog inputs should be
referenced directly to the single point ground. Digital
inputs and outputs should be shielded from and/or routed
away from the reference and analog circuitry.
SAMPLE-AND-HOLD
Both the LTC1286 and the LTC1298 provide a built-in
sample-and-hold (S&H) function to acquire signals. The
S&H of the LTC1286 acquires input signals from “+” input
relative to “–” input during the t
SMPL
time (see Figure 1).
However, the S&H of the LTC1298 can sample input
signals in the single-ended mode or in the differential
inputs during the t
SMPL
time (see Figure 7).
Single-Ended Inputs
The sample-and-hold of the LTC1298 allows conversion
of rapidly varying signals. The input voltage is sampled
during the t
SMPL
time as shown in Figure 7. The sampling
interval begins as the bit preceding the MSBF bit is shifted
in and continues until the falling CLK edge after the MSBF
bit is received. On this falling edge, the S&H goes into hold
mode and the conversion begins.
Figure 7. LTC1298 “+” and “–” Input Settling Windows
CLK
D
IN
D
OUT
"+" INPUT
"–" INPUT
SAMPLE
HOLD
"+" INPUT MUST
SETTLE DURING
THIS TIME
t
SMPL
t
CONV
CS
SGL/DIFF
START
MSBF
DON'T CARE
1ST BIT TEST "–" INPUT MUST
SETTLE DURING THIS TIME
B11
LTC1096/8 F07
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1298 | 11.1 ksps,Micropower Sampling 12-Bit A/D Converters In S0-8 Packages(11.1 ksps,12位,采樣模數(shù)轉(zhuǎn)換器(SO-8封裝)) |
| LTC1287CCJ | 3V Single Chip 12-Bit Data Acquisition System |
| LTC1287BC | 3V Single Chip 12-Bit Data Acquisition System |
| LTC1287BCJ | 3V Single Chip 12-Bit Data Acquisition System |
| LTC1287BCN | 3V Single Chip 12-Bit Data Acquisition System |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LTC1286CN8 | 功能描述:IC A/D CONV SAMPLING 12BIT 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| LTC1286CN8#PBF | 功能描述:IC A/D CONV SAMPLING 12BIT 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC1286CN8PBF | 制造商:Linear Technology 功能描述:LTC1286CN8PBF |
| LTC1286CS8 | 功能描述:IC A/D CONV SAMPLING 12BIT 8SOIC RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個(gè)單端，單極 |
| LTC1286CS8#PBF | 功能描述:IC A/D CONV SAMPLING 12BIT 8SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
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