- 您现在的位置：买卖IC网 > PDF目录8607 > LTC6405CMS8E#PBF (Linear Technology)IC AMP/DRVR DIFF R-R 5V 8-MSOP PDF资料下载
参数资料
| 型号： | LTC6405CMS8E#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/26页 |
| 文件大小： | 0K |
| 描述： | IC AMP/DRVR DIFF R-R 5V 8-MSOP |
| 标准包装： | 50 |
| 类型： | ADC 驱动器 |
| 应用： | 数据采集 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 8-MSOP-EP |
| 包装： | 管件 |
| 产品目录页面： | 1323 (CN2011-ZH PDF) |
LTC6405
16
6405fb
For more information www.linear.com/6405
applications inForMation
In general, the degree of feedback pair mismatch is a
source of common mode to differential conversion of both
signalsandnoise.Using1%resistorsorbetterwillmitigate
most problems, and will provide about 34dB worst case of
commonmoderejection.Using0.1%resistorswillprovide
about 54dB of common mode rejection. A low impedance
ground plane should be used as a reference for both the
input signal source and the VOCM pin. Bypassing the VOCM
with a high quality 0.1F ceramic capacitor to this ground
planewillfurtherhelppreventcommonmodesignalsfrom
being converted to differential signals.
There may be concern on how feedback factor mismatch
affects distortion. Feedback factor mismatch from using
1%resistorsorbetter,hasanegligibleeffectondistortion.
However, in single supply level shifting applications where
there is a voltage difference between the input common
mode voltage and the output common mode voltage,
resistor mismatch can make the apparent voltage offset
of the amplifier appear worse than specified.
The apparent input referred offset induced by feedback
factor mismatch is derived from the above equation:
VOSDIFF(APPARENT) ≈ (VICM – VOCM) b
Using the LTC6405 in a single supply application on a
single 5V supply with 1% resistors, and the input common
mode grounded, with the VOCM pin biased at 2.5V, the
worst case DC offset can induce 25mV of apparent offset
voltage. With 0.1% resistors, the worst case apparent
offset reduces to 2.5mV.
Input Impedance and Loading Effects
The input impedance looking into the VINP or VINM input
of Figure 1 depends on whether or not the sources VINP
and VINM are fully differential or not. For balanced input
sources (VINP=–VINM),theinputimpedanceseenateither
input is simply:
RINP = RINM = RI
For single ended inputs, because of the signal imbalance
at the input, the input impedance actually increases over
thebalanceddifferentialcase.Theinputimpedancelooking
into either input is:
RINP =RINM =
RI
1–
1
2
RF
RI +RF
Inputsignalsourceswithnon-zerooutputimpedancescan
alsocausefeedbackimbalancebetweenthepairoffeedback
networks. For the best performance, it is recommended
that the input source output impedance be compensated
for. If input impedance matching is required by the source,
a termination resistor R1 should be chosen (see Figure 4):
R1
=
RINM RS
RINM –RS
According to Figure 4, the input impedance looking into
Figure 4. Optimal Compensation for Signal Source Impedance
VS
+
–
+
RF
RI
RINM
RS
RI
R2 = RS || R1
R1 CHOSEN SO THAT R1 || RINM = RS
R2 CHOSEN TO BALANCE R1 || RS
R1
6405 F04
thedifferentialamp(RINM)reflectsthesingleendedsource
case, thus:
RINM =
RI
1–
1
2
RF
RI +RF
R2 is chosen to equal R1 || RS:
R2
=
R1RS
R1
+RS
相关PDF资料 |
PDF描述 |
|---|---|
| SY88843VMG | IC AMP LIMIT CML TTL SD 16MLF |
| VE-2TM-IV-F1 | CONVERTER MOD DC/DC 10V 150W |
| AD8307ARZ-RL7 | IC AMP LOGARITHMIC 8-SOIC |
| AD5678BRUZ-1REEL7 | IC DAC 12/16BIT SPI/SRL 14TSSOP |
| VE-2T1-IV-F4 | CONVERTER MOD DC/DC 12V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6405CMS8E-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:2.7GHz, 5V, Low Noise, Rail-to-Rail Input Differential Amplifi er/Driver |
| 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 类别:集成电路 (IC) >> 线性 - 放大器 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:可变增益放大器 应用:CATV 安装类型:表面贴装 封装/外壳:20-WQFN 裸露焊盘 供应商设备封装:20-TQFN-EP（5x5） 包装:托盘 |
| 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 类别:集成电路 (IC) >> 线性 - 放大器 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:可变增益放大器 应用:CATV 安装类型:表面贴装 封装/外壳:20-WQFN 裸露焊盘 供应商设备封装:20-TQFN-EP（5x5） 包装:托盘 |
发布紧急采购，3分钟左右您将得到回复。