參數(shù)資料
| 型號： | LT6600CDF-2.5#PBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF LN 12-DFN |
| 標準包裝： | 91 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 電流 - 輸入偏壓： | 15µA |
| 電壓 - 輸入偏移： | 5000µV |
| 電流 - 電源： | 28mA |
| 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： | 12-WFDFN 裸露焊盤 |
| 供應商設備封裝： | 12-DFN-EP（4x4） |
| 包裝： | 管件 |
LT6600-2.5
1
660025fe
TYPICAL APPLICATION
DESCRIPTION
Very Low Noise, Differential
Amplier and 2.5MHz Lowpass Filter
The LT6600-2.5 combines a fully differential amplier
with a 4th order 2.5MHz lowpass lter approximating a
Chebyshev frequency response. Most differential ampli-
ers require many precision external components to tail
or gain and bandwidth. In contrast, with the LT6600-2.5,
two external resistors program differential gain, and the
lter’s 2.5MHz cutoff frequency and passband ripple are
internally set. The LT6600-2.5 also provides the necessary
level shifting to set its output common mode voltage to ac-
commodate the reference voltage requirements of A/Ds.
Using a proprietary internal architecture, the LT6600-2.5
integrates an antialiasing lter and a differential ampli-
er/driver without compromising distortion or low noise
performance. At unity gain the measured in band signal-
to-noise ratio is an impressive 86dB. At higher gains the
input referred noise decreases so the part can process
smaller input differential signals without signicantly
degrading the output signal-to-noise ratio.
The LT6600-2.5 also features low voltage operation. The
differential design provides outstanding performance for a
4VP-P signal level while the part operates with a single 3V
supply. The LT6600-2.5 is available in SO-8 and DFN-12
packages.
For similar devices with higher cutoff frequency, refer
to the LT6600-5, LT6600-10, LT6600-15 and LT6600-20
data sheets.
DAC Output Filter
FEATURES
APPLICATIONS
n ±0.6dB (Max) Ripple 4th Order Lowpass Filter with
2.5MHz Cutoff
n Programmable Differential Gain via Two External
Resistors
n Adjustable Output Common Mode Voltage
n Operates and Specied with 3V, 5V, ±5V Supplies
n 86dB S/N with 3V Supply and 1VRMS Output
n Low Distortion, 1VRMS, 800Ω Load
1MHz: 95dBc 2nd, 88dBc 3rd
n Fully Differential Inputs and Outputs
n Compatible with Popular Differential Amplier
Pinouts
n SO-8 and DFN-12 Packages
n High Speed ADC Antialiasing and DAC Smoothing in
Networking or Cellular Basestation Applications
n High Speed Test and Measurement Equipment
n Medical Imaging
n Drop-in Replacement for Differential Ampliers
DAC Output Spectrum
LT6600-2.5 Output Spectrum
(S8 Pin Numbers Shown)
1580Ω
0.1μF
5V
–5V
0.1μF
–
+
–
+
VOUT
–
660025 TA01a
VOUT
+
3
4
1
50MHz
7
2
8
5
6
52.3Ω
LADCOM
IOUT A
IOUT B
CLK
LTC1668
16-BIT 4kHz to 2.5MHz
DISCRETE MULTI-TONE
SIGNAL AT 50MSPS
LT6600-2.5
FREQUENCY (MHz)
(dBm)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
120
108
96
84
72
60
48
36
24
12
660025 TA01b
DAC OUTPUT IMAGE
BASEBAND SIGNAL
FREQUENCY (MHz)
(dBm)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
120
108
96
84
72
60
48
36
24
12
660025 TA01c
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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