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參數(shù)資料
| 型號： | LT6350HDD#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 8/28頁 |
| 文件大小： | 0K |
| 描述： | IC DIFF CONVERT/ADC DRIVER 8-DFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | ADC 驅(qū)動(dòng)器 |
| 應(yīng)用： | 數(shù)據(jù)采集 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-DFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
| 配用： | DC1783A-H-ND - BOARD SAR ADC LTC2376-18 DC1783A-G-ND - BOARD SAR ADC LTC2377-18 DC1783A-F-ND - BOARD SAR ADC LTC2378-18 DC1783A-E-ND - BOARD SAR ADC LTC2379-18 DC1783A-D-ND - BOARD SAR ADC LTC2376-16 DC1783A-C-ND - BOARD SAR ADC LTC2377-16 DC1783A-B-ND - BOARD SAR ADC LTC2378-16 DC1783A-A-ND - BOARD SAR ADC LTC2380-16 DC1500A-C-ND - BOARD SAR ADC LTC2391-16 DC1500A-B-ND - BOARD SAR ADC LTC2392-16 |
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LT6350
16
6350fc
For more information www.linear.com/LT6350
applicaTions inForMaTion
Driving the input signal sufficiently beyond the power
supply rails will cause the input transistors to saturate.
When saturation occurs, the amplifier loses a stage of
phase inversion and the output tries to invert. Diodes D1
and D2 (Figure 5) forward bias and hold the output within
a diode drop of the input signal. With very heavy input
overdrive the output of op amp 1 could invert. To avoid
this inversion, limit the input overdrive to 0.5V beyond
the power supply rails.
OUTPUT VOLTAGE RANGE
The outputs of the LT6350 typically swing to within 55mV
of the upper and lower supply rails when driving a purely
capacitive load such as at the switched-capacitor input
stage of a SAR ADC. The LT6350 can therefore share a
single 5V supply with the SAR ADC and drive a full 8VP-P
differentialaroundaninputcommonmodevoltagebetween
2.055V and 2.945V. A modest negative supply can be
added to allow the LT6350 to swing all the way to 0V in
systems where the ADC requires a true 0V-referenced
signal or when the input common mode range of the ADC
is restricted to be lower than 2.055V. Some SAR ADCs use
2V as the input common mode voltage with a full-scale
input signal range at each input of 0V to 4V. The outputs
of the LT6350 can swing 7.78VP-P differentially around a
2V common mode voltage, which is a loss of only 0.24dB
of the full-scale range of such ADCs.
+–
+IN1
–IN1
V+
V–
OUT2
OUT1
SHDN
+IN2
VIN
5V
0.1F
2V
LT6350
6350 F06
+
–
CCM
RS
RFILT
RS
CDIFF
CCM
+
–
AIN+
AIN–
ADC
Figure 6. Driving an ADC
INTERFACING THE LT6350 TO A/D CONVERTERS
When driving an ADC, an additional single-pole passive
RC filter added between the outputs of the LT6350 and
the inputs of the ADC can sometimes improve system
performance.ThisisbecausethesamplingprocessofADCs
creates a charge transient at the ADC inputs that is caused
by the switching in of the ADC sampling capacitor. This
momentarily shorts the output of the amplifier as charge is
transferred between amplifier and sampling capacitor. For
anaccuraterepresentationoftheinputsignal,theamplifier
must recover and settle from this load transient before
the acquisition period has ended. An RC network at the
outputsofthedriverhelpsdecouplethesamplingtransient
of the ADC from the amplifier reducing the demands on
the amplifier’s output stage (see Figure 6). The resistors
at the inputs to the ADC minimize the sampling transients
that charge the RC filter capacitors.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT6350HMS8#PBF | 功能描述:IC DIFF CONVERT/ADC DRIVER 8MSOP RoHS:是 類別: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:- 類型:可變增益放大器 應(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| LT6350HMS8#TRPBF | 功能描述:IC DIFF CONVERT/ADC DRIVER 8MSOP RoHS:是 類別: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:- 類型:可變增益放大器 應(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
| LT6350HMS8PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Single-Ended to Differential Converter/ADC Driver |
| LT6350HMS8TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Noise Single-Ended to Differential Converter/ADC Driver |
| LT6350IDD#PBF | 功能描述:IC DIFF CONVERT/ADC DRIVER 8-DFN RoHS:是 類別: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:- 類型:可變增益放大器 應(yīng)用:CATV 安裝類型:表面貼裝 封裝/外殼:20-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-TQFN-EP（5x5） 包裝:托盤 |
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