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DAC7512E

更新时间： 2024-11-05 04:38:27
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页数 文件大小 规格书
20页 896K
描述
Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER

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DAC7512E 数据手册

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DAC7512  
DAC7512  
DAC7512  
SBAS156B – JULY 2002  
Low-Power, Rail-to-Rail Output, 12-Bit Serial Input  
DIGITAL-TO-ANALOG CONVERTER  
FEATURES  
ꢀꢀmicroPOWER OPERATION: 135µA at 5V  
ꢀ POWER-DOWN: 200nA at 5V, 50nA at 3V  
ꢀ POWER SUPPLY: +2.7V to +5.5V  
DESCRIPTION  
The DAC7512 is a low-power, single, 12-bit buffered voltage  
output Digital-to-Analog Converter (DAC). Its on-chip preci-  
sion output amplifier allows rail-to-rail output swing to be  
achieved. The DAC7512 uses a versatile three-wire serial  
interface that operates at clock rates up to 30MHz and is  
compatible with standard SPI™, QSPI™, Microwire™, and  
DSP interfaces.  
ꢀ
TESTED MONOTONIC BY DESIGN  
ꢀ POWER-ON RESET TO 0V  
ꢀ THREE POWER-DOWN FUNCTIONS  
ꢀ LOW POWER SERIAL INTERFACE WITH  
The reference for the DAC7512 is derived from the power  
supply, resulting in the widest dynamic output range possible.  
The DAC7512 incorporates a power-on reset circuit that  
ensures that the DAC output powers up at 0V and remains  
there until a valid write takes place in the device. The  
DAC7512 contains a power-down feature, accessed over the  
serial interface, that can reduce the current consumption of  
the device to 50nA at 5V.  
SCHMITT-TRIGGERED INPUTS  
ꢀ ON-CHIP OUTPUT BUFFER AMPLIFIER,  
RAIL-TO-RAIL OPERATION  
ꢀ SYNC INTERRUPT FACILITY  
ꢀ SOT23-6 AND MSOP-8 PACKAGES  
APPLICATIONS  
The low power consumption of this part in normal operation  
makes it ideally suited to portable battery-operated equip-  
ment. The power consumption is 0.7mW at 5V reducing to  
1µW in power-down mode.  
ꢀ PORTABLE BATTERY-POWERED  
INSTRUMENTS  
ꢀ DIGITAL GAIN AND OFFSET  
ADJUSTMENT  
The DAC7512 is available in a SOT23-6 package and an  
MSOP-8 package.  
ꢀ PROGRAMMABLE VOLTAGE AND  
CURRENT SOURCES  
SPI and QSPI are registered trademarks of Motorola.  
Microwire is a registered trademark of National Semiconductor.  
VDD  
GND  
Power-On  
Reset  
REF (+) REF (–)  
12-Bit  
DAC  
Output  
Buffer  
DAC  
Register  
VOUT  
Input  
Control  
Logic  
Power-Down  
Control Logic  
Resistor  
Network  
SYNC SCLK DIN  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2002, Texas Instruments Incorporated  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
www.ti.com  
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DAC7512E/250G4 TI

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 		支持微功耗操作的低功耗轨到轨输出 12 位串行输入 DAC | DGK | 8 | -40
DAC7512E/2K5 BB

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 		Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER
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DAC7512E/2K5G4 TI

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 		SERIAL INPUT LOADING, 8us SETTLING TIME, 12-BIT DAC, PDSO8, GREEN, PLASTIC, MSOP-8
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 		Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER
DAC7512N/250 TI

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 		Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER
DAC7512N/250 BB

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 		Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER
DAC7512N/250G4 BB

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 		Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER

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