參數(shù)資料
型號(hào): LT1819
廠商: Linear Technology Corporation
英文描述: 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
中文描述: 1.3GHz的低噪聲,低失真差分ADC驅(qū)動(dòng)器為140MHz的中頻
文件頁(yè)數(shù): 1/16頁(yè)
文件大?。?/td> 232K
代理商: LT1819
LTC6401-20
1
640120f
TYPICAL APPLICATION
Single-Ended to Differential ADC Driver
FEATURES
APPLICATIONS
DESCRIPTION
1.3GHz Low Noise, Low
Distortion Differential ADC
Driver for 140MHz IF
The LTC
6401-20 is a high-speed differential amplifier
targeted at processing signals from DC to 140MHz. The
part has been specifically designed to drive 12-, 14- and
16-bit ADCs with low noise and low distortion, but can also
be used as a general-purpose broadband gain block.
The LTC6401-20 is easy to use, with minimal support
circuitry required. The output common mode voltage is
set using an external pin, independent of the inputs, which
eliminates the need for transformers or AC-coupling ca-
pacitors in many applications. The gain is internally fixed
at 20dB (10V/V).
The LTC6401-20 saves space and power compared to
alternative solutions using IF gain blocks and transform-
ers. The LTC6401-20 is packaged in a compact 16-lead
3mm
×
3mm QFN package and operates over the –40°C
to 85°C temperature range.
1.3GHz –3dB Bandwidth
Fixed Gain of 10V/V (20dB)
–93dBc IMD
3
at 70MHz (Equivalent OIP
3
= 50.5dBm)
–74dBc IMD
3
at 140MHz (Equivalent OIP
3
= 41dBm)
1nV/√
H
z Internal Op Amp Noise
2.1nV/√
H
z Total Input Noise
6.2dB Noise Figure
Differential Inputs and Outputs
200
Ω
Input Impedance
2.85V to 3.5V Supply Voltage
50mA Supply Current (150mW)
1V to 1.6V Output Common Mode Voltage,
Adjustable
DC- or AC-Coupled Operation
Max Differential Output Swing 4.4V
P-P
Small 16-Lead 3mm
×
3mm
×
0.75mm QFN Package
Differential ADC Driver
Differential Driver/Receiver
Single Ended to Differential Conversion
IF Sampling Receivers
SAW Filter Interfacing
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
29
Ω
66.5
Ω
0.1
μ
F
0.1
μ
F
640120 TA01a
LTC6401-20
V
OCM
ENABLE
LTC2208
10
Ω
0.1
μ
F + 1000pF
INPUT
0.1
μ
F
LTC2208 130Msps
16-Bit ADC
1.25V
3.3V
10
Ω
AIN
+
AIN
V
CM
V
DD
20dB GAIN
V
+
–IN
+IN
3.3V
+OUT
+OUTF
–OUTF
–OUT
V–
Equivalent Output IP3 vs Frequency
FREQUENCY (MHz)
0
O
70
(NOTE 7)
60
50
40
30
20
10
0
100
50
150
640120 TA01b
200
相關(guān)PDF資料
PDF描述
LT1993-10 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
LT1993-2 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
LT1993-4 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
LT1994 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
LTC6400-20 1.3GHz Low Noise, Low Distortion Differential ADC Driver for 140MHz IF
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