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参数资料
| 型号： | DC1112A |
| 厂商： | Linear Technology |
| 文件页数： | 13/24页 |
| 文件大小： | 0K |
| 描述： | BOARD DAC LTC2755-16 |
| 软件下载： | QuikEval System |
| 设计资源： | DC1112A Design File DC1112A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™, SoftSpan™ |
| DAC 的数量： | 4 |
| 位数： | 16 |
| 数据接口： | 并联 |
| 设置时间： | 2µs |
| DAC 型： | 电流 |
| 工作温度： | 0°C ~ 70°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | LTC2755-16 |
| 相关产品： | DC590B-ND - BOARD DEMO USB SERIAL CONTROLLER LTC2755BIUP-16#TRPBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755BIUP-16#PBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755BCUP-16#TRPBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755BCUP-16#PBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755AIUP-16#TRPBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755AIUP-16#PBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755ACUP-16#TRPBF-ND - IC DAC 16BIT CUR OUT 64-QFN LTC2755ACUP-16#PBF-ND - IC DAC 16BIT CUR OUT 64-QFN |
LTC2755
20
2755f
Grounding
As with any high resolution converter, clean grounding is
important. A low impedance analog ground plane and star
grounding techniques should be used. IOUT2X must be tied
to the star ground with as low a resistance as possible.
When it is not possible to locate star ground close to
IOUT2, a low resistance trace should be used to route this
pin to star ground. This minimizes the voltage drop from
this pin to ground caused by the code dependent current
owing to ground. When the resistance of this circuit
board trace becomes greater than 1Ω, a force/sense am-
plier conguration should be used to drive this pin (see
APPLICATIONS INFORMATION
Figure 2). This preserves the excellent accuracy (1LSB
INL and DNL) of the LTC2755-16.
Layout
Figures 3, 4, 5, and 6 show the layout for the LTC2755
evaluation board, DC1112. This shows how to route
the digital signals around the device without interfering
with the reference and output op amps. Complete demo
board documentation is available in the DC1112 quick
start guide.
–
+
–
+
1/2 LT1469
DAC A
LTC2755-16
VREF
5V
2
1
3
59
60
61
64
63
1
62
IOUT1A
15pF
IOUT2A
RFBA
RVOSA
REFA
RCOM1
RIN1
ROFSA
VOUTA
2
58
–
+
6
1
23
IOUT2
2
3
*SCHOTTKY BARRIER DIODE
ZETEX*
BAT54S
LT1001
2755 F02
1000pF
ALTERNATE AMPLIFIER FOR OPTIMUM SETTLING TIME PERFORMANCE
6
1
23
2,14, 34, 46
–
+
LT1468
3
ZETEX
BAT54S
2
200Ω
IOUT2
150pF
3
2
DAC B
DAC C
DAC D
–
+
–
+
–
+
Figure 2. Optional Circuits for Driving IOUT2 from GND with a Force/Sense Amplier.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1112H | 制造商:未知厂家 制造商全称:未知厂家 功能描述:D_1112H Series, Thin Type InGaN/SiC SMT LED |
| DC1112H-TR | 功能描述:LED BLUISH-GREEN 0805 SMD RoHS:是 类别:光电元件 >> LED - 1112H 标准包装:500 系列:Screenmaster® 颜色:琥珀 Millicandela 等级:2260mcd 正向电压:2.1V 电流 - 测试:20mA 波长 - 主:590nm 波长 - 峰值:- 视角:- 透镜类型:散射，有色 透镜样式/尺寸:圆顶椭圆，5.1mm x 3.7mm 封装/外壳:径向 尺寸/尺寸:- 高度:7.00mm 安装类型:通孔 包装:散装 在特定电流下的光通量 - 测试:- |
| DC1113B | 制造商:Intel 功能描述:113B |
| DC1113F-TR | 功能描述:LED BLUE-GREEN RIGHT ANGLE SMD RoHS:是 类别:光电元件 >> LED - 1113F 标准包装:500 系列:Screenmaster® 颜色:琥珀 Millicandela 等级:2260mcd 正向电压:2.1V 电流 - 测试:20mA 波长 - 主:590nm 波长 - 峰值:- 视角:- 透镜类型:散射，有色 透镜样式/尺寸:圆顶椭圆，5.1mm x 3.7mm 封装/外壳:径向 尺寸/尺寸:- 高度:7.00mm 安装类型:通孔 包装:散装 在特定电流下的光通量 - 测试:- |
| DC111492 | 制造商:ITT Interconnect Solutions 功能描述:DC111492 - Bulk |
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