參數(shù)資料
型號(hào)： LTC6405CMS8E#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 14/26頁(yè)
文件大?。?/td> 0K
描述： IC AMP/DVR DIFF R-R 5V 8-MSOP
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： ADC 驅(qū)動(dòng)器
應(yīng)用： 數(shù)據(jù)采集
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 8-MSOP-EP
包裝： 帶卷 (TR)
LTC6405
21
6405fb
For more information www.linear.com/6405
Interfacing the LTC6405 to A/D Converters
Rail-to-rail input and fast settling time make the LTC6405
ideal for interfacing to low voltage, single supply, differ-
ential input ADCs. The sampling process of ADCs create
a sampling glitch caused by switching in the sampling
capacitorontheADCfrontendwhichmomentarily“shorts”
theoutputoftheamplifieraschargeistransferredbetween
the amplifier and the sampling capacitor. The amplifier
must recover and settle from this load transient before
this acquisition period ends for a valid representation of
the input signal. In general, the LTC6405 will settle much
more quickly from these periodic load impulses than from
a 2V input step, but it is a good idea to place an R-C filter
network between the differential outputs of the LTC6405
andtheinputoftheADCtohelpabsorbthechargeinjection
that comes out of the ADC from the sampling process.
The capacitance of the filter network serves as a charge
reservoir to provide high frequency charging during the
sampling process, while the resistors of the filter network
are used to dampen and attenuate any charge kickback
from the ADC. The selection of the R-C time constant is
trial and error for a given ADC, but the following guidelines
are recommended: Choosing too large of a resistor in the
decoupling network leaving insufficient settling time will
create a voltage divider between the dynamic input imped-
ance of the ADC and the decoupling resistors. Choosing
too small of a resistor will possibly prevent the resistor
from properly dampening the load transient caused by
the sampling process, prolonging the time required for
settling. In 16-bit applications, this will typically require
a minimum of 11 R-C time constants. It is recommended
that the capacitor chosen have a high quality dielectric
(such as C0G multilayer ceramic).
applications inForMation
Figure 12. Interfacing the LTC6405 to an ADC
0.1F
–
+
1
SHDN
5
6
–IN
7
+OUT
8
+OUTF
16
15
+IN
NC
14
–OUT
13
–OUTF
+INA
–INA
200
2
V+
3
V–
V+
V–
5V
VOCM
12
V–
11
V+
10
V+
9
V–
6405 F12
LTC6405
LTC2208
VIN, 2VP-P
SHDN
200
100
200
0.1F
20
5V
4
0.1F
CONTROL
GND VDD
VCM
D15
D0
0.1F
4.7pF
3.3V
1F
VTIP
1.8pF
1.25pF
50
2.2F
相關(guān)PDF資料
PDF描述
LTC6404CUD-4#TRPBF IC AMP/DRIVER DIFF 16-QFN
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LTC6406CMS8E#TRPBF IC AMP/DRIVER DIFF 8-MSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC6405CUD 制造商:Linear Technology 功能描述:DIFF AMP 5V 2.7GHZ R/R 16QFN 制造商:Linear Technology 功能描述:DIFF AMP, 5V, 2.7GHZ, R/R, 16QFN
LTC6405CUD#PBF 功能描述:IC DIFF AMP/DRIVER R-R 16-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類(lèi)型:可變?cè)鲆娣糯笃?應(yīng)用:CATV 安裝類(lèi)型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤(pán)
LTC6405CUD#TR 制造商:Linear Technology 功能描述:DIFF-AMPLIFIER, 2.7GHZ, 690V/US, QFN-16, No. of Amplifiers:1, Input Offset Voltage:6mV, Bandwidth:2.7GHz, Amplifier Case Style:QFN, No. of Pins:16, Supply Voltage Range:4.5V to 5.25V, Slew Rate:690V/s, Supply Current:18mA, MSL:- , RoHS Compliant: No
LTC6405CUD#TRPBF 功能描述:IC DIFF AMP/DRIVER R-R 16-QFN RoHS:是 類(lèi)別:集成電路 (IC) >> 線性 - 放大器 - 專用 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:60 系列:- 類(lèi)型:可變?cè)鲆娣糯笃?應(yīng)用:CATV 安裝類(lèi)型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤(pán)
LTC6405CUD-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:2.7GHz, 5V, Low Noise, Rail-to-Rail Input Differential Amplifi er/Driver
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