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參數(shù)資料
| 型號： | THS6002EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS |
| 中文描述： | 雙差分線路驅(qū)動與接收 |
| 文件頁數(shù)： | 28/40頁 |
| 文件大?。?/td> | 718K |
| 代理商： | THS6002EVM |
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THS6002
DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS
SLOS202D– JANUARY 1998– REVISED JULY 1999
28
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
noise calculations and noise figure
Noise can cause errors on very small signals. This is especially true for the receiver amplifiers which are
generally used for amplifying small signals coming over a transmission line. The noise model for current
feedback amplifiers (CFB) is the same as voltage feedback amplifiers (VFB). The only difference between the
two is that the CFB amplifiers generally specify different current noise parameters for each input while VFB
amplifiers usually only specify one noise current parameter. The noise model is shown in Figure 54. This model
includes all of the noise sources as follows:
e
n
= amplifier internal voltage noise (nV/
√
Hz)
IN+ = noninverting current noise (pA/
√
Hz)
IN– = inverting current noise (pA/
√
Hz)
e
Rx
= thermal voltage noise associated with each resistor (e
Rx
= 4 kTR
x
)
_
+
RF
RS
RG
eRg
eRf
eRs
en
IN+
Noiseless
IN–
eni
eno
Figure 54. Noise Model
The total equivalent input noise density (e
ni
) is calculated by using the following equation:
eni
en
2
IN
RS
2
IN–
RF
RG
2
4 kTRs
4 kT RF
RG
Where:
k = Boltzmann’s constant = 1.380658
×
10
–23
T = temperature in degrees Kelvin (273 +
°
C)
R
F
|| R
G
= parallel resistance of R
F
and R
G
To get the equivalent output noise of the amplifier, just multiply the equivalent input noise density (e
ni
) by the
overall amplifier gain (A
V
).
eno
eniAV
e
ni
1
R
F
R
G
(Noninverting Case)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| THS6002IDWP | 功能描述:緩沖器和線路驅(qū)動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWP | 制造商:Texas Instruments 功能描述:TRANSCEIVER DUAL SMD 6002 SOIC20 |
| THS6002IDWPG4 | 功能描述:緩沖器和線路驅(qū)動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPR | 功能描述:緩沖器和線路驅(qū)動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| THS6002IDWPRG4 | 功能描述:緩沖器和線路驅(qū)動器 Dual Diff/Receiver Line Driver RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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