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LTC1662IMS8#PBF

更新时间： 2024-01-30 02:21:40
品牌 Logo 应用领域
凌特 - Linear 光电二极管转换器
页数 文件大小 规格书
16页 225K
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LTC1662IMS8#PBF 数据手册

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LTC1662  
Ultralow Power, Dual  
10-Bit DAC in MSOP  
Features  
Description  
Ultralow Power: 1.5µA (Typ) I per DAC Plus  
The LTC®1662 is an ultralow power, fully buffered voltage  
output,dual10-bitdigital-to-analogconverter(DAC).Each  
DAC channel draws just 1.7µA (typ) total supply-plus-  
reference operating current, yet is capable of supplying  
DC output currents in excess of 1mA and reliably driving  
capacitive loads of up to 1000pF. A programmable sleep  
mode further reduces total operating current to 0.05µA.  
n
CC  
0.05µA Sleep Mode for Extended Battery Life  
n
Tiny: Two 10-Bit DACs in an 8-Lead MSOP—  
Half the Size of an SO-8  
Wide 2.7V to 5.5V Supply Range  
n
n
Double Buffered for Simultaneous DAC Updates  
n
Rail-to-Rail Voltage Outputs Drive 1000pF  
n
Reference Range Includes Supply for Ratiometric  
Linear Technology’s proprietary, inherently monotonic  
architecture provides excellent linearity and an exception-  
ally small external form factor. The double-buffered input  
logic provides simultaneous update capability and can be  
usedtowritetotheDACswithoutinterruptingsleepmode.  
0V to V Output  
CC  
n
Reference Input Impedance Is Code-Independent  
(7.1MΩ Typ)—Eliminates External Buffers  
3-Wire Serial Interface with Schmitt Trigger Inputs  
Differential Nonlinearity: 0.75LSB Max  
n
n
With its tiny operating current and exceptionally small  
size, the LTC1662 is ideal for use in the most power-  
constrained products. For most designs, there is no  
perceptible impact on the power budget; the LTC1662  
draws many times less current than even a trimpot,  
while providing buffered, low impedance (0.5Ω typical,  
applications  
n
Mobile Communications  
n
Portable Battery-Powered Instruments  
n
Remote or Inaccessible Adjustments  
V
= 5V) rail-to-rail outputs.  
n
CC  
Digitally Controlled Amplifiers and Attenuators  
Factory or Field Calibration  
n
The LTC1662 is pin and software compatible with the  
LTC1661 dual, 60µA 10-bit DAC. It is available in 8-pin  
MSOP and PDIP packages and is specified over the in-  
dustrial temperature range.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Block Diagram  
V
GND  
7
V
V
OUT A  
CC  
OUT B  
5
Total Supply-Plus-Reference  
Operating Current  
8
6
5.0  
4.5  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
5.5V  
4.5V  
10-BIT  
DAC A  
10-BIT  
DAC B  
3.6V  
V
= 2.7V  
CC  
CONTROL  
LOGIC  
ADDRESS  
DECODER  
V
= V  
CC  
REF  
CODE = 1023  
SHIFT REGISTER  
–55 –35 –15  
5
25 45 65 85 105 125  
TEMPERATURE (°C)  
1662 TA01b  
1662 BD  
1
2
3
4
CS/LD  
SCK  
SDI  
REF  
1662fa  
1
1234567...16

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LTC1662IMS8#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC1662IMS8#TRPBF Linear

完全替代

 暂无描述
LTC1662IMS8 Linear

完全替代

 Ultralow Power, Dual 10-Bit DAC in MSOP
LTC1662CMS8 Linear

完全替代

 Ultralow Power, Dual 10-Bit DAC in MSOP

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