- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5901 > LT6600IS8-5#PBF (Linear Technology)IC AMP DIFF LP FLTR 5MHZ 8-SOIC PDF資料下載
參數(shù)資料
| 型號(hào)： | LT6600IS8-5#PBF |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF LP FLTR 5MHZ 8-SOIC |
| 標(biāo)準(zhǔn)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： | 30µA |
| 電壓 - 輸入偏移： | 8000µV |
| 電流 - 電源： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 11 V，±1.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°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 |
LT6600-5
8
66005fb
APPLICATIONS INFORMATION
the passband atness near 5MHz. The common mode
output voltage is set to 2V.
Use Figure 4 to determine the interface between the
LT6600-5 and a current output DAC. The gain, or “tran-
simpedance,” is dened as A = VOUT/IIN Ω. To compute
the transimpedance, use the following equation:
A
=
806 R1
R1
+R2
Ω
By setting R1 + R2 = 806Ω, the gain equation reduces
to A = R1Ω.
The voltage at the pins of the DAC is determined by R1,
R2, the voltage on Pin 7 and the DAC output current
(IIN+ or IIN–). Consider Figure 4 with R1 = 49.9Ω and R2
= 750Ω. The voltage at Pin 7 is 1.65V. The voltage at the
DAC pins is given by:
V
DAC = VPIN7
R1
+R2+806
+I
IN
R1 R2
R1
+R2
= 51mV +I
IN 46.8Ω
IIN is IIN– or IIN+. The transimpedance in this example is
50.3Ω.
Figure 4
–
+
0.1μF
0.01μF
3.3V
–
+
LT6600-5
3
4
VOUT
+
IIN
+
IIN
–
VOUT
–
1
7
2
8
5
6
66005 F04
CURRENT
OUTPUT
DAC
R1
R2
Evaluating the LT6600-5
The low impedance levels and high frequency operation
of the LT6600-5 require some attention to the matching
networks between the LT6600-5 and other devices. The
previous examples assume an ideal (0Ω) source imped-
ance and a large (1kΩ) load resistance. Among practi-
cal examples where impedance must be considered is
the evaluation of the LT6600-5 with a network analyzer.
Figure 5 is a laboratory setup that can be used to character-
ize the LT6600-5 using single-ended instruments with 50Ω
source impedance and 50Ω input impedance. For a unity
gain conguration the LT6600-5 requires a 806Ω source
resistance yet the network analyzer output is calibrated
for a 50Ω load resistance. The 1:1 transformer, 51.1Ω
and 787Ω resistors satisfy the two constraints above.
The transformer converts the single-ended source into a
differential stimulus. Similarly, the output the LT6600-5
will have lower distortion with larger load resistance yet
the analyzer input is typically 50Ω. The 4:1 turns (16:1
impedance) transformer and the two 402Ω resistors of
Figure 5, present the output of the LT6600-5 with a 1600Ω
differential load, or the equivalent of 800Ω to ground at
each output. The impedance seen by the network analyzer
input is still 50Ω, reducing reections in the cabling be-
tween the transformer and analyzer input.
Differential and Common Mode Voltage Ranges
The differential ampliers inside the LT6600-5 contain
circuitry to limit the maximum peak-to-peak differential
voltage through the lter. This limiting function prevents
excessive power dissipation in the internal circuitry and
provides output short-circuit protection. The limiting
function begins to take effect at output signal levels above
2VP-P and it becomes noticeable above 3.5VP-P. This is
illustrated in Figure 6; the LTC6600-5 was congured with
unity passband gain and the input of the lter was driven
with a 1MHz signal. Because this voltage limiting takes
place well before the output stage of the lter reaches the
supply rails, the input/output behavior of the IC shown
in Figure 6 is relatively independent of the power supply
voltage.
Figure 5
–
+
0.1μF
2.5V
–2.5V
–
+
LT6600-5
3
4
1
7
2
8
5
6
66005 F05
402Ω
NETWORK
ANALYZER
INPUT
50Ω
COILCRAFT
TTWB-16A
4:1
NETWORK
ANALYZER
SOURCE
COILCRAFT
TTWB-1010
1:1
50Ω
51.1Ω
787Ω
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PEC33DAHN | CONN HEADER .100 DUAL STR 66POS |
| 929647-07-22-I | CONN HEADER .100 SNGL STR 22POS |
| TSW-120-26-S-D | CONN HEADER 40POS .100" DL GOLD |
| 77313-122-14LF | CONN HEADER .100 DUAL STR 14POS |
| 929667-02-07-I | CONN HEADER .100 DUAL R/A 14POS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT6600IS8-5-TR | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Very Low Noise, Differential Amplifi er and 5MHz Lowpass Filter |
| LT6600IS8-5-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Very Low Noise, Differential Amplifi er and 5MHz Lowpass Filter |
| LT6604-10 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 10MHz Lowpass Filter |
| LT6604-15 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 15MHz Lowpass Filter |
| LT6604-2.5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Very Low Noise, Differential Amplifi er and 2.5MHz Lowpass Filter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。