- 您现在的位置：买卖IC网 > PDF目录39416 > LTC2263IUJ-14#TRPBF (LINEAR TECHNOLOGY CORP) PROPRIETARY METHOD ADC, QCC40 PDF资料下载
参数资料
| 型号： | LTC2263IUJ-14#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | PROPRIETARY METHOD ADC, QCC40 |
| 封装： | 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40 |
| 文件页数： | 15/32页 |
| 文件大小： | 1451K |
| 代理商： | LTC2263IUJ-14#TRPBF |
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页第13页第14页当前第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
22
22654314fb
LTC2265-14/
LTC2264-14/LTC2263-14
By default the outputs are standard LVDS levels: a 3.5mA
output current and a 1.25V output common mode volt-
age. An external 100 differential termination resistor
is required for each LVDS output pair. The termination
resistors should be located as close as possible to the
LVDS receiver.
The outputs are powered by OVDD and OGND which are
isolated from the A/D core power and ground.
Programmable LVDS Output Current
Thedefaultoutputdrivercurrentis3.5mA.Thiscurrentcan
be adjusted by control register A2 in serial programming
mode.Availablecurrentlevelsare1.75mA,2.1mA,2.5mA,
3mA, 3.5mA, 4mA and 4.5mA. In parallel programming
mode the SCK pin can select either 3.5mA or 1.75mA.
Optional LVDS Driver Internal Termination
In most cases, using just an external 100 termination
resistor will give excellent LVDS signal integrity. In addi-
tion, an optional internal 100 termination resistor can
be enabled by serially programming mode control register
A2. The internal termination helps absorb any reflections
caused by imperfect termination at the receiver. When the
internal termination is enabled, the output driver current
is doubled to maintain the same output voltage swing. In
parallel programming mode the SDO pin enables internal
termination. Internal termination should only be used with
1.75mA, 2.1mA or 2.5mA LVDS output current modes.
Table 1. Maximum Sampling Frequency for All Serialization Modes. Note That These Limits Are for the LTC2265-14. The Sampling
Frequency for the Slower Speed Grades Cannot Exceed 40MHz (LTC2264-14) or 25MHz (LTC2263-14).
SERIALIZATION MODE
MAXIMUM SAMPLING
FREQUENCY, fS (MHz)
DCO FREQUENCY
FR FREQUENCY
SERIAL DATA RATE
2-Lane
16-Bit Serialization
65
4 fS
fS
8 fS
2-Lane
14-Bit Serialization
65
3.5 fS
0.5 fS
7 fS
2-Lane
12-Bit Serialization
65
3 fS
fS
6 fS
1-Lane
16-Bit Serialization
62.5
8 fS
fS
16 fS
1-Lane
14-Bit Serialization
65
7 fS
fS
14 fS
1-Lane
12-Bit Serialization
65
6 fS
fS
12 fS
APPLICATIONS INFORMATION
DATA FORMAT
Table 2 shows the relationship between the analog input
voltage and the digital data output bits. By default the
output data format is offset binary. The 2’s complement
format can be selected by serially programming mode
control register A1.
Table 2. Output Codes vs Input Voltage
AIN+ – AIN–
(2V RANGE)
D13-D0
(OFFSET BINARY)
D13-D0
(2’s COMPLEMENT)
>1.000000V
+0.999878V
+0.999756V
11 1111 1111 1111
11 1111 1111 1110
01 1111 1111 1111
01 1111 1111 1110
+0.000122V
+0.000000V
–0.000122V
–0.000244V
10 0000 0000 0001
10 0000 0000 0000
01 1111 1111 1111
01 1111 1111 1110
00 0000 0000 0001
00 0000 0000 0000
11 1111 1111 1111
11 1111 1111 1110
–0.999878V
–1.000000V
≤–1.000000V
00 0000 0000 0001
00 0000 0000 0000
10 0000 0000 0001
10 0000 0000 0000
Digital Output Randomizer
Interference from the A/D digital outputs is sometimes
unavoidable.Digitalinterferencemaybefromcapacitiveor
inductive coupling or coupling through the ground plane.
Even a tiny coupling factor can cause unwanted tones
in the ADC output spectrum. By randomizing the digital
output before it is transmitted off chip, these unwanted
tones can be randomized which reduces the unwanted
amplitude.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC2264IUJ-14#PBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2264IUJ-14#TRPBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2265IUJ-14#TRPBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2263IUJ-14#PBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2264CUJ-14#PBF | PROPRIETARY METHOD ADC, QCC40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2264-12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:12-Bit, 65Msps/40Msps/25Msps Low Power Dual ADCs |
| LTC2264-14 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Quad 14-Bit, 125Msps ADC with Integrated Drivers |
| LTC2264CUJ-12#PBF | 功能描述:IC ADC 12BIT SER/PAR 40M 40-QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| LTC2264CUJ-12#TRPBF | 功能描述:IC ADC 12BIT SER/PAR 40M 40-QFN RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| LTC2264CUJ-12PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:12-Bit, 65Msps/40Msps/25Msps Low Power Dual ADCs |
发布紧急采购，3分钟左右您将得到回复。