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参数资料
| 型号： | LTC2265IUJ-14#PBF |
| 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： | 17/32页 |
| 文件大小： | 1451K |
| 代理商： | LTC2265IUJ-14#PBF |
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22654314fb
LTC2265-14/
LTC2264-14/LTC2263-14
APPLICATIONS INFORMATION
Serial data transfer starts when CS is taken low. The data
on the SDI pin is latched at the first 16 rising edges of
SCK. Any SCK rising edges after the first 16 are ignored.
The data transfer ends when CS is taken high again.
The first bit of the 16-bit input word is the R/W bit. The
next seven bits are the address of the register (A6:A0).
The final eight bits are the register data (D7:D0).
If the R/W bit is low, the serial data (D7:D0) will be written
totheregistersetbytheaddressbits(A6:A0).IftheR/Wbit
is high, data in the register set by the address bits (A6:A0)
will be read back on the SDO pin (see the Timing Diagrams
section). During a readback command the register is not
updated and data on SDI is ignored.
The SDO pin is an open-drain output that pulls to ground
Table 4. Serial Programming Mode Register Map (PAR/SER = GND)
REGISTER A0: RESET REGISTER (ADDRESS 00h)
D7
D6
D5
D4
D3
D2
D1
D0
RESET
X
Bit 7
RESET
Software Reset Bit
0 = Not Used
1 = Software Reset. All Mode Control Registers Are Reset to 00h. The ADC is momentarily placed in SLEEP mode.
This Bit Is Automatically Set Back to Zero at the End of the SPI Write Command.
The Reset Register is Write Only.
Bits 6-0
Unused, Don’t Care Bits.
REGISTER A1: FORMAT AND POWER-DOWN REGISTER (ADDRESS 01h)
D7
D6
D5
D4
D3
D2
D1
D0
DCSOFF
RAND
TWOSCOMP
SLEEP
NAP_2
X
NAP_1
Bit 7
DCSOFF
Clock Duty Cycle Stabilizer Bit
0 = Clock Duty Cycle Stabilizer On
1 = Clock Duty Cycle Stabilizer Off. This is Not Recommended.
Bit 6
RAND
Data Output Randomizer Mode Control Bit
0 = Data Output Randomizer Mode Off
1 = Data Output Randomizer Mode On
Bit 5
TWOSCOMP
Two’s Complement Mode Control Bit
0 = Offset Binary Data Format
1 = Two’s Complement Data Format
Bits 4, 3, 0
Bits 1, 2
SLEEP: NAP_2: NAP_1
Sleep/Nap Mode Control Bits
000 = Normal Operation
0X1 = Channel 1 in Nap Mode
01X = Channel 2 in Nap Mode
1XX = Sleep Mode. Both Channels are disabled
Note: Any Combination of Channels Can Be Placed in Nap Mode.
Unused, Don’t Care Bit
witha200impedance.Ifregisterdataisreadbackthrough
SDO, an external 2k pull-up resistor is required. If serial
data is only written and readback is not needed, then SDO
can be left floating and no pull-up resistor is needed. Table
4 shows a map of the mode control registers.
Software Reset
If serial programming is used, the mode control registers
shouldbeprogrammedassoonaspossibleafterthepower
supplies turn on and are stable. The first serial command
must be a software reset which will reset all register data
bits to logic 0. To perform a software reset, bit D7 in the
reset register is written with a logic 1. After the reset SPI
write command is complete, bit D7 is automatically set
back to zero.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC2265IUJ-12#PBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2265CUJ-12#TRPBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2263CUJ-12#PBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2264CUJ-12#TRPBF | PROPRIETARY METHOD ADC, QCC40 |
| LTC2263CUJ-12#TRPBF | PROPRIETARY METHOD ADC, QCC40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2265IUJ-14TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:14-Bit, 65Msps/40Msps/25Msps Low Power Dual ADCs |
| LTC2266-12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 20Msps Low Power Dual ADC |
| LTC2266-14 | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 65Msps/40Msps/25Msps Low Power Dual ADCs |
| LTC2266CUJ-12#PBF | 功能描述:IC ADC 12BIT SER 80MSPS 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 |
| LTC2266CUJ-12#TRPBF | 功能描述:IC ADC 12BIT 80MSPS DUAL 40QFN 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 |
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