參數(shù)資料
型號(hào)： LTC1091ACN8
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： 1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
中文描述： 2-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8
封裝： PLASTIC, DIP-8
文件頁(yè)數(shù)： 22/32頁(yè)
文件大?。?/td> 356K
代理商： LTC1091ACN8
22
LTC 1091/LTC 1092
LTC 1093/LTC 1094
U
S
A
O
PPLICATI
U
U
Figure 8. “+” and “–” Input Settling Windows
“–” Input Settling
At the end of the sample phase the input capacitor switches
to the “–” input and the conversion starts (see Figure 8).
During the conversion, the “+” input voltage is effectively
“held” by the sample-and-hold and will not affect the
conversion result. However, it is critical that the “–” input
voltage settle completely during the first CLK cycle of the
conversion time and be free of noise. Minimizing R
SOURCE–
and C2 will improve settling time. If large “–” input source
resistance must be used, the time allowed for settling can
be extended by using a slower CLK frequency. At the
maximum CLK rate of 500kHz,
R
SOURCE–
< 1k
and
C2 < 20pF will provide adequate settling.
Input Op Amps
When driving the analog inputs with an op amp it is
important that the op amp settle within the allowed time
(see Figure 8). Again, the “+” and “–” input sampling times
can be extended as previously described to accommodate
slower op amps. Most op amps, including the LT1006 and
LT1013 single supply op amps, can be made to settle well
even with the minimum settling windows of 3
μ
s (“+”
input) and 2
μ
s (“–” input) which occur at the maximum
clock rate of 500kHz. Figures 9 and 10 show examples of
adequate and poor op amp settling.
CLK
D
IN
D
OUT
“+” INPUT
“–” INPUT
SAMPLE
HOLD
“+” INPUT MUST
SETTLE DURING
THIS TIME
t
SMPL
t
CONV
CS
SGL/DIFF
START
MSBF
B9
1ST BIT TEST “–” INPUT MUST
SETTLE DURING THIS TIME
1091-4 F08
DON‘T CARE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1091ACN8#PBF 功能描述:IC DATA ACQ SYS 10BIT 2CH 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
LTC1091AMJ8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System
LTC1091C 制造商:LINER 制造商全稱:Linear Technology 功能描述:1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems
LTC1091CJ8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System
LTC1091CN8 功能描述:IC DATA ACQ SYS 10BIT 2CH 8-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
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