- 您现在的位置：买卖IC网 > PDF目录19022 > DC1370A-L (Linear Technology)BOARD DEMO 25MSPS LTC2256-12 PDF资料下载
参数资料
| 型号： | DC1370A-L |
| 厂商： | Linear Technology |
| 文件页数： | 13/34页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO 25MSPS LTC2256-12 |
| 软件下载： | QuikEval II System |
| 设计资源： | DC1370A Design Files |
| 标准包装： | 1 |
| 系列： | * |
| 相关产品： | DC718C-ND - DEMO QUIKEVAL-II DATA |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页
LTC2258-12
LTC2257-12/LTC2256-12
20
225812fd
For more information www.linear.com/LTC2258-12
applicaTions inForMaTion
25
200
0.1F
AIN+
AIN–
12pF
0.1F
VCM
LTC2258-12
225812 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 LTC2258-12/2257-12/2256-12 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
225812 F08
LTC2258-12
Figure 8. Reference Circuit
SENSE
1.25V
EXTERNAL
REFERENCE
1F
VREF
225812 F09
LTC2258-12
Figure 9. Using an External 1.25V Reference
相关PDF资料 |
PDF描述 |
|---|---|
| KK3270045 | OSCILLATOR 32.768 KHZ SMD |
| 74 | LAMP T 1-3/4 |
| 393 | LAMP INCAND T1-3/4 MIDGE GROOVE |
| LC1ALG | FLUORESCENT TASK LIGHT |
| 398 | LAMP INCAND T1-3/4 MIDGE GROOVE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1370A-M | 制造商:Linear Technology 功能描述:14BIT ADC Eval Brd, Rq. DC718 制造商:Linear Technology 功能描述:14BIT ADC Eval Brd, Rq. DC718; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2262-14; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide; Features:Also works with requred DC718 |
| DC1370A-N | 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC718 制造商:Linear Technology 功能描述:12BIT ADC Eval Brd, Rq. DC718; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2262-12; Kit Application Type:Data Converter; Application Sub Type:ADC; Kit Contents:Board, Guide; Features:Also works with requred DC718 |
| DC1371A | 功能描述:BOARD USB DATA ACQUISITION HS RoHS:是 类别:未定义的类别 >> 其它 系列:* 标准包装:1 系列:* 其它名称:MS305720A |
| DC1379A | 功能描述:BOARD EVAL LTM8025 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:µModule® 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| DC1379B | 制造商:Linear Technology 功能描述:BOARD EVAL LTM8025 制造商:Linear Technology 功能描述:EVAL BOARD, LTM8025 BUCK REGULATOR, Silicon Manufacturer:Linear Technology, Silicon Core Number:LTM8025, Kit Application Type:Power Management - Voltage Regulator, Application Sub Type:Synchronous Buck Regulator , RoHS Compliant: NA |
发布紧急采购，3分钟左右您将得到回复。