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LTC2637-LMX12 PDF预览

LTC2637-LMX12

更新时间： 2024-11-10 11:41:55
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
28页 426K
描述
Octal 12-/10-/8-Bit I2C VOUT DACs with 10ppm/°C Reference

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中文翻译

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LTC2637-LMX12 数据手册

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LTC2637  
2
Octal 12-/10-/8-Bit I C V  
OUT  
DACs with 10ppm/°C Reference  
FEATURES  
DESCRIPTION  
n
Integrated Precision Reference:  
The LTC®2637 is a family of octal 12-, 10-, and 8-bit  
voltage-output DACs with an integrated, high-accuracy,  
low-drift 10ppm/°C reference in 14-lead DFN and 16-lead  
MSOP packages. It has a rail-to-rail output buffer and is  
guaranteed monotonic. The LTC2637-L has a full-scale  
output of 2.5V, and operates from a single 2.7V to 5.5V  
supply. The LTC2637-H has a full-scale output of 4.096V,  
and operates from a 4.5V to 5.5V supply. Each DAC can  
alsooperatewithanexternalreference,whichsetstheDAC  
full-scale output to the external reference voltage.  
2.5V Full-Scale 10ppm/°C (LTC2637-L)  
4.096V Full-Scale 10ppm/°C (LTC2637-H)  
n
Maximum INL Error: 2.5LSB (LTC2637-12)  
n
Low Noise: 0.75mV 0.1Hz to 200KHz  
P-P  
n
Guaranteed Monotonic Over –40°C to 125°C  
Temperature Range  
n
n
n
n
n
n
n
Selectable Internal or External Reference  
2.7V to 5.5V Supply Range (LTC2637-L)  
Ultralow Crosstalk Between DACs (<3nV•s)  
Low Power: 100μA per DAC at 3V (LTC2637-L)  
Power-On-Reset to Zero-Scale/Mid-Scale  
Double-Buffered Data Latches  
2
These DACs communicate via a 2-wire I C-compatible  
serialinterface.TheLTC2637operatesinboththestandard  
mode (clock rate of 100kHz) and the fast mode (clock rate  
of 400kHz). The LTC2637 incorporates a power-on reset  
circuit. Options are available for reset to zero-scale or  
reset to mid-scale in internal reference mode, or reset to  
mid-scale in external reference mode after power-up.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property  
of their respective owners. Protected by U.S. Patents including 5396245, 5859606, 6891433,  
6937178, 7414561.  
Tiny 14-Lead 4mm × 3mm DFN and 16-Lead MSOP  
Packages  
APPLICATIONS  
n
Mobile Communications  
n
Process Control and Industrial Automation  
n
Automatic Test Equipment  
n
Portable Equipment  
n
Automotive  
n
Optical Networking  
BLOCK DIAGRAM  
Integral Nonlinearity (LTC2637-LZ12)  
SWITCH  
REF  
INTERNAL REFERENCE  
V
REF  
GND  
2
V
= 3V  
CC  
INTERNAL REF.  
V
CC  
1
0
V
DAC A  
DAC B  
DAC C  
DAC D  
DAC H  
DAC G  
DAC F  
DAC E  
V
OUTA  
OUTH  
V
V
V
V
V
V
REF  
REF  
REF  
REF  
REF  
REF  
V
OUTB  
OUTC  
V
OUTG  
–1  
–2  
V
V
V
V
OUTF  
0
1024  
2048  
3072  
4095  
CODE  
2637 TA01  
OUTD  
OUTE  
POWER-ON RESET  
CAO  
(CA1)  
(CA2)  
DECODE  
2
SCL  
SDA  
I C  
ADDRESS  
DECODE  
2
I C INTERFACE  
2637 BD  
( ) MSOP PACKAGE ONLY  
2637fb  
1
1234567...28

中文翻译

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