- 您現在的位置：買賣IC網 > PDF目錄19023 > DC1370A-F (Linear Technology)BOARD DEMO 25MSPS LTC2256-14 PDF資料下載
參數資料
| 型號： | DC1370A-F |
| 廠商： | Linear Technology |
| 文件頁數： | 13/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DEMO 25MSPS LTC2256-14 |
| 軟件下載： | QuikEval II System |
| 設計資源： | DC1370A Design Files |
| 標準包裝： | 1 |
| 系列： | * |
| 相關產品： | DC718C-ND - DEMO QUIKEVAL-II DATA |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
LTC2258-14
LTC2257-14/LTC2256-14
20
225814fc
For more information www.linear.com/LTC2258-14
applicaTions inForMaTion
25
200
0.1F
AIN+
AIN–
12pF
0.1F
VCM
LTC2258-14
225814 F07
–
+
ANALOG
INPUT
HIGH SPEED
DIFFERENTIAL
AMPLIFIER
0.1F
Figure 7. Front-End Circuit Using a High Speed
Differential Amplifier
Amplifier Circuits
Figure 7 shows the analog input being driven by a high
speed differential amplifier. The output of the amplifier is
AC coupled to the A/D so the amplifier’s output common
mode voltage can be optimally set to minimize distortion.
At very high frequencies an RF gain block will often have
lower distortion than a differential amplifier. If the gain
blockissingle-ended,thenatransformercircuit(Figures 4
to 6) should convert the signal to differential before driv-
ing the A/D.
Reference
The LTC2258-14/2257-14/2256-14 has an internal 1.25V
voltage reference. For a 2V input range using the internal
reference, connect SENSE to VDD. For a 1V input range
using the internal reference, connect SENSE to ground.
For a 2V input range with an external reference, apply a
1.25V reference voltage to SENSE (Figure 9.)
The input range can be adjusted by applying a voltage to
SENSE that is between 0.625V and 1.30V. The input range
will then be 1.6 VSENSE.
The VREF, REFH and REFL pins should be bypassed as
shown in Figure 8. The 0.1F capacitor between REFH
and REFL should be as close to the pins as possible (not
on the back side of the circuit board).
VREF
REFH
SENSE
TIE TO VDD FOR 2V RANGE;
TIE TO GND FOR 1V RANGE;
RANGE = 1.6 VSENSE FOR
0.65V < VSENSE < 1.300V
1.25V
REFL
0.1F
2.2F
INTERNAL ADC
HIGH REFERENCE
BUFFER
5
0.8x
DIFF AMP
INTERNAL ADC
LOW REFERENCE
1.25V BANDGAP
REFERENCE
0.625V
RANGE
DETECT
AND
CONTROL
1F
0.1F
225814 F08
LTC2258-14
Figure 8. Reference Circuit
SENSE
1.25V
EXTERNAL
REFERENCE
1F
VREF
225814 F09
LTC2258-14
Figure 9. Using an External 1.25V Reference
相關PDF資料 |
PDF描述 |
|---|---|
| 3AH | LAMP NEON WIRE TERMINAL |
| A3CJ-7021 | SWITCH UNIT-IP40 |
| CA11175_TINA2-W | LENS FOR NICHIA 183/083 |
| C10926_STRADA-B | LENS FOR CREE XP-E |
| 17847LG | LAMP WAVE PLUS 30" ARM WEIGHT BS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DC1370A-G | 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2261-12; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide |
| DC1370A-H | 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2260-12; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide |
| DC1370A-I | 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC1371 & DC1075; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2259-12; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide |
| DC1370A-J | 功能描述:BOARD DEMO 65MSPS LTC2258-12 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A |
| DC1370A-K | 功能描述:BOARD DEMO 40MSPS LTC2257-12 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A |
發布緊急采購，3分鐘左右您將得到回復。