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参数资料
| 型号： | LTC2355CMSE-12#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/18页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 3.5MSPS 10-MSOP |
| 标准包装： | 50 |
| 位数： | 12 |
| 采样率（每秒）： | 3.5M |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 18mW |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 管件 |
| 输入数目和类型： | 2 个单端，单极；1 个差分，单极 |
| 产品目录页面： | 1349 (CN2011-ZH PDF) |
| 配用： | DC1082A-F-ND - BOARD SAR ADC LTC2355-14 |
LTC2355-12/LTC2355-14
2355fa
applications inFormation
The Typical Application Figure on page 16 shows a cir-
cuit for level-shifting and squaring the output from an
RF signal generator or other low-jitter source. A single
D-type flip flop is used to generate the CONV signal to
the LTC2355-12/LTC2355-14. Re-timing the master clock
signal eliminates clock jitter introduced by the controlling
device(DSP,FPGA,etc.)Boththeinverterandflipflopmust
be treated as analog components and should be powered
from a clean analog supply.
Serial Clock Input (SCK)
The rising edge of SCK advances the conversion process
and also udpates each bit in the SDO data stream. After
CONV rises, the third rising edge of SCK starts clocking
out the 12/14 data bits with the MSB sent first. A simple
approach is to generate SCK to drive the LTC2355-12/
LTC2355-14 first and then buffer this signal with the
appropriate number of inverters to drive the serial clock
input of the processor serial port. Use the falling edge of
the clock to latch data from the Serial Data Output (SDO)
into your processor serial port. The 14-bit serial data will
be received right justified, in a 16-bit word with 16 or
more clocks per frame sync. It is good practice to drive
the LTC2355-12/LTC2355-14 SCK input first to avoid digi-
tal noise interference during the internal bit comparison
decision by the internal high speed comparator. Unlike the
CONV input, the SCK input is not sensitive to jitter because
the input signal is already sampled and held constant.
Serial Data Output (SDO)
Upon power-up, the SDO output is automatically reset to
the high impedance state. The SDO output remains in high
impedance until a new conversion is started. SDO sends
out 12/14 bits in the output data stream beginning at the
third rising edge of SCK after the rising edge of CONV.
SDO is always in high impedance mode when it is not
sending out data bits. Please note the delay specification
from SCK to a valid SDO. SDO is always guaranteed to
be valid by the next rising edge of SCK. The 16-bit output
data stream is compatible with the 16-bit or 32-bit serial
port of most processors.
Loading on the SDO line must be minimized. SDO can
directly drive most fast CMOS logic inputs directly. How-
ever, the general purpose I/O pins on many programmable
logic devices (FPGAs, CPLDs) and DSPs have excessive
capacitance. In these cases, a 100Ω resistor in series
with SDO can isolate the input capacitance of the receiv-
ing device. If the receiving device has more than 10pF
of input capacitance or is located far from the LTC2355-
12/LTC2355-14, an NC7SVU04P5X inverter can be used
to provide more drive.
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相关代理商/技术参数 |
参数描述 |
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| LTC2355CMSE-14#PBF | 功能描述:IC ADC 14BIT 3.5MSPS 10-MSOP 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:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| LTC2355CMSE-14#PBF | 制造商:Linear Technology 功能描述:IC, ADC, 14BIT, 3.5MSPS, MSOP-10 |
| LTC2355CMSE-14#TRPBF | 功能描述:IC ADC 14BIT 3.5MSPS 10-MSOP 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 |
| LTC2355IMSE-12#PBF | 功能描述:IC ADC 12BIT 3.5MSPS 10-MSOP 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:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| LTC2355IMSE-12#TRPBF | 功能描述:IC ADC 12BIT 3.5MSPS 10-MSOP 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:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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