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參數(shù)資料
| 型號(hào)： | LTC6604CUFF-15#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC34 |
| 封裝： | 4 X 7 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-34 |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 203K |
| 代理商： | LTC6604CUFF-15#TRPBF |
LT6604-15
10
660415fa
APPLICATIONS INFORMATION
In Figure 3 the LT6604-15 is providing 12dB of gain. The
gain resistor has an optional 62pF in parallel to improve
the passband atness near 15MHz. The common mode
output voltage is set to 2V.
Use Figure 4 to determine the interface between the
LT6604-15 and a current output DAC. The gain, or “tran-
simpedance,” is dened as A = VOUT/IIN. To compute the
transimpedance, use the following equation:
A =
536 R1
(R1+R2)
(Ω)
By setting R1 + R2 = 536Ω, the gain equation reduces
to A = R1 (Ω).
The voltage at the pins of the DAC is determined by R1,
R2, the voltage on VMID and the DAC output current.
Consider Figure 4 with R1 = 49.9Ω and R2 = 487Ω. The
voltage at VMID, for VS = 3.3V, is 1.65V. The voltage at the
DAC pins is given by:
VDAC = VMID
R1
R1+R2+ 536
+IIN
R1R2
R1+R2
= 77mV +IIN 45.3Ω
IIN is IIN+ or IIN–. The transimpedance in this example is
49.8Ω.
Evaluating the LT6604-15
The low impedance levels and high frequency operation
of the LT6604-15 require some attention to the matching
networks between the LT6604-15 and other devices. The
previous examples assume an ideal (0Ω) source impedance
and a large (1k) load resistance. Among practical examples
–
+
133Ω
0.1μF
0.01μF
5V
–
+
VIN
–
VIN
+
25
27
4
34
6
2
29
7
660415 F03
VOUT
+
VOUT
–
62pF
+
– 2V
V
t
3
2
1
0
VIN
+
VIN
–
V
t
3
2
1
0
VOUT
+
VOUT
–
LT6604-15
500mVP-P (DIFF)
1/2
–
+
0.1μF
0.01μF
3.3V
–
+
LT6604-15
25
27
VOUT
+
IIN
+
IIN
–
VOUT
–
4
1/2
34
6
2
29
7
660415 F04
CURRENT
OUTPUT
DAC
R1
R2
=
VOUT
+ – VOUT–
IIN
+ – IIN–
536 R1
R1 + R2
Figure 3
Figure 4
–
+
0.1μF
2.5V
–2.5V
–
+
LT6604-15
25
27
4
34
6
2
29
7
660415 F05
402Ω
NETWORK
ANALYZER
INPUT
50Ω
COILCRAFT
TTWB-16A
4:1
NETWORK
ANALYZER
SOURCE
COILCRAFT
TTWB-1010
1:1
50Ω
52.3Ω
523Ω
1/2
Figure 5
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| LTC6652AHMS8-2.5 | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 2.5 V, PDSO8 |
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| LTC6801HG#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO36 |
| LTC6801IG#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO36 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6604IUFF-10-TRPBF | 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 |
| LTC6604IUFF-15-TRPBF | 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 |
| LTC6605-10 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 20Msps Low Power ADC |
| LTC6605-14 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 20Msps Low Power ADC |
| LTC6605-7 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:16-Bit, 20Msps Low Power Dual ADC |
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