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| 型號： | LT6600CS8-10 |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF 10MHZ LP FLTR 8-SOIC |
| 標準包裝： | 100 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 電流 - 輸入偏壓： | 40µA |
| 電壓 - 輸入偏移： | 8000µV |
| 電流 - 電源： | 36mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 11 V，±1.5 V ~ 5.5 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
LT6600-10
11
66001fe
APPLICATIONS INFORMATION
currents will be generated through the DC path between
input and output terminals. Minimize these currents to
decrease power dissipation and distortion.
Consider the application in Figure 3. VMID sets the output
common mode voltage of the 1st differential amplier
inside the LT6600-10 (see the Block Diagram section) at
2.5V. Since the input common mode voltage is near 0V, there
will be approximately a total of 2.5V drop across the series
combination of the internal 402Ω feedback resistor and the
external 100Ω input resistor. The resulting 5mA common
mode DC current in each input path, must be absorbed by
the sources VIN+ and VIN–. VOCM sets the common mode
output voltage of the 2nd differential amplier inside the
LT6600-10, and therefore sets the common mode output
voltage of the lter. Since in the example, Figure 3, VOCM
differs from VMID by 0.5V, an additional 2.5mA (1.25mA
per side) of DC current will ow in the resistors coupling
the 1st differential amplier output stage to lter output.
Thus, a total of 12.5mA is used to translate the common
mode voltages.
A simple modication to Figure 3 will reduce the DC
common mode currents by 36%. If VMID is shorted to
VOCM the common mode output voltage of both op amp
stages will be 2V and the resulting DC current will be
8mA. Of course, by AC-coupling the inputs of Figure 3,
the common mode DC current can be reduced to 2.5mA.
Noise
The noise performance of the LT6600-10 can be evaluated
with the circuit of Figure 7.
Given the low noise output of the LT6600-10 and the 6dB
attenuation of the transformer coupling network, it will
be necessary to measure the noise oor of the spectrum
analyzer and subtract the instrument noise from the lter
noise measurement.
Example: With the IC removed and the 25Ω resistors
grounded, measure the total integrated noise (eS) of the
spectrum analyzer from 10kHz to 10MHz. With the IC
inserted, the signal source (VIN) disconnected, and the
input resistors grounded, measure the total integrated
noise out of the lter (eO). With the signal source
connected, set the frequency to 1MHz and adjust the
amplitude until VIN measures 100mVP-P. Measure the
output amplitude, VOUT, and compute the passband gain
A = VOUT/VIN. Now compute the input referred integrated
noise (eIN) as:
e
IN =
(e
O )
2 –(e
S )
2
A
Table 1 lists the typical input referred integrated noise for
various values of RIN.
Figure 8 is plot of the noise spectral density as a function
of frequency for an LT6600-10 with RIN = 402Ω using
the xture of Figure 7 (the instrument noise has been
subtracted from the results).
Table 1. Noise Performance
PASSBAND
GAIN (V/V)
RIN
INPUT REFERRED
INTEGRATED NOISE
10kHz TO 10MHz
INPUT REFERRED
NOISE dBm/Hz
4
100Ω
24μVRMS
–149
2
200Ω
34μVRMS
–146
1
402Ω
56μVRMS
–142
The noise at each output is comprised of a differential
component and a common mode component. Using a
transformer or combiner to convert the differential outputs
to single-ended signal rejects the common mode noise and
gives a true measure of the S/N achievable in the system.
Conversely, if each output is measured individually and
the noise power added together, the resulting calculated
noise level will be higher than the true differential noise.
Figure 7. (S8 Pin Numbers)
–
+
0.1μF
2.5V
–2.5V
–
+
LT6600-10
3
4
1
7
2
8
5
6
RIN
25Ω
6600 F07
SPECTRUM
ANALYZER
INPUT
50Ω
VIN
COILCRAFT
1:1
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| LT6600CS8-10#PBF | 功能描述:IC AMP DIFF 10MHZ LP FLTR 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| LT6600CS8-10#TR | 功能描述:IC AMP DIFF FILTER 2.5MHZ 8SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT6600CS8-10#TRPBF | 功能描述:IC AMP DIFF 10MHZ LP FLTR 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT6600CS8-15 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Very Low Noise, Differential Amplifi er and 15MHz Lowpass Filter |
| LT6600CS8-15#PBF | 功能描述:IC AMP DIFF LP FLTR 15MHZ 8-SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:100 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:- 轉(zhuǎn)換速率:0.2 V/µs 增益帶寬積:- -3db帶寬:- 電流 - 輸入偏壓:100pA 電壓 - 輸入偏移:30µV 電流 - 電源:380µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):±2 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SO 包裝:管件 |
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