參數資料
| 型號： | LTC6401IUD-8#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC ADC DRIVER DIFF 16-QFN |
| 標準包裝： | 2,500 |
| 類型： | ADC 驅動器 |
| 應用： | 數據采集 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 16-QFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
LTC6401-8
1
64018f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
2.2GHz Low Noise, Low
Distortion Differential ADC
Driver for DC-140MHz
The LTC6401-8 is a high-speed differential amplier tar-
geted at processing signals from DC to 140MHz. The part
has been specically 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 LTC6401-8 is easy to use, with minimal support cir-
cuitry 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 xed
at 8dB (2.5V/V).
The LTC6401-8 saves space and power compared to al-
ternative solutions using IF gain blocks and transformers.
The LTC6401-8 is packaged in a compact 16-lead 3mm ×
3mm QFN package and operates over the –40°C to 85°C
temperature range.
Equivalent Output IP3 vs Frequency
■
2.2GHz –3dB Bandwidth
■
Fixed Gain of 2.5V/V (8dB)
■
–92dBc IMD3 at 70MHz (Equivalent OIP3 = 50dBm)
■
–80.5dBc IMD3 at 140MHz (Equivalent OIP3 = 44dBm)
■
1nV/√Hz Internal Op Amp Noise
■
12.1dB Noise Figure
■
Differential Inputs and Outputs
■
400Ω Input Impedance
■
2.85V to 3.5V Supply Voltage
■
45mA Supply Current (135mW)
■
1V to 1.6V Output Common Mode, Adjustable
■
DC- or AC-Coupled Operation
■
Max Differential Output Swing 4.6VP-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.
R2
27.4
Ω
R1
59.0
Ω
C4
0.1
μF
C3
0.1
μF
64018 TA01a
LTC6401-8
LTC2208
RS1
15
Ω
C2
0.1
μF
VIN
C1
1000pF
3.3V
RS2
15
Ω
RS3
10
Ω
RS4
10
Ω
R3
100
Ω
VOCM
C5
0.1
μF
1.25V
CF2
33pF
COILCRAFT
0603CS
CF1
33pF
L1
24nH
CF3
33pF
V+
–IN
+IN
+OUT
–OUT
V–
AIN+
AIN–
VCM
VDD
LTC2208
130Msps
16-Bit ADC
0
100 120 140 160 180
20 40 60 80
200
FREQUENCY (MHz)
OUTPUT
IP3
(dBm)
60
50
40
20
10
30
0
64018 TA01b
(NOTE 7)
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