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參數(shù)資料
| 型號： | LT6402CUD-20#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DIFF AMP/ADC DRVR 16-QFN |
| 標準包裝： | 2,500 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 2 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 400 V/µs |
| -3db帶寬： | 300MHz |
| 電流 - 輸入偏壓： | 5µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 30mA |
| 電流 - 輸出 / 通道： | 35mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 5.5 V，±2 V ~ 2.5 V |
| 工作溫度： | 0°C ~ 70°C |
| 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) |
1
640220fa
LT6402-20
300MHz Low Distortion, Low
Noise Differential Amplier/
ADC Driver (AV = 20dB)
The LT6402-20 is a low distortion, low noise differential
amplier/ADC driver for use in applications from DC to
300MHz. The LT6402-20 has been designed for ease of
use, with minimal support circuitry required. Exceptionally
low input-referred noise and low distortion (with either
single-ended or differential inputs) make the LT6402-20
an excellent solution for driving high speed 12-bit and
14-bit ADCs. In addition to the normal unltered outputs
(+OUT and –OUT), the LT6402-20 has a built-in 75MHz
differential low pass lter and an additional pair of ltered
outputs (+OUTFILTERED, –OUTFILTERED) to reduce
external ltering components when driving high speed
ADCs. The output common mode voltage is easily set via
the VOCM pin, eliminating an output transformer or AC-
coupling capacitors in many applications.
The LT6402-20 is designed to meet the demanding require-
ments of communications transceiver applications. It can
be used as a differential ADC driver, a general-purpose
differential gain block, or in other applications requiring
differential drive. The LT6402-20 can be used in data
acquisition systems required to function at frequencies
down to DC.
The LT6402-20 operates on a 5V supply and consumes
30mA.Itcomesinacompact16-lead3mm×3mmQFNpack-
age and operates over a –40°C to 85°C temperature range.
■
Differential ADC Driver for:
Imaging
Communications
■
Differential Driver/Receiver
■
Single Ended to Differential Conversion
■
Differential to Single Ended Conversion
■
Level Shifting
■
IF Sampling Receivers
■
SAW Filter Interfacing/Buffering
■
300 MHz –3dB Bandwidth
■
Fixed Gain of 20dB
■
Low Distortion:
51dBm OIP3, –81dBc HD3 (20MHz, 2VP-P)
■
Low Noise:
12.4dB NF, en = 1.9nV/√Hz (20MHz)
■
Differential Inputs and Outputs
■
Additional Filtered Outputs
■
Adjustable Output Common Mode Voltage
■
DC- or AC-Coupled Operation
■
Minimal Support Circuitry Required
■
Small 0.75mm Prole 16-Lead 3mm × 3mm QFN
Package
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
6402 TA01a
IF IN
LT6402-20
–INA
–INB
VOCM
VCC
VEE
5V
+INB
+INA
10
10
LTC2249
0.1
F
0.1
F
0.1
F
0.1
F
+OUT
–OUT
AIN+
AIN–
VCM
Distortion vs Frequency, Differential
Input, No RLOAD
FREQUENCY (MHz)
1
–100
DISTORTION
(dBc)
–90
–80
–70
–60
–40
10
100
64022 G08
–50
HD2
HD3
FILTERED OUTPUTS
VOUT = 2VP-P
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