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DAC7512N-3K Datasheet(PDF) 1 Page - Texas Instruments |
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DAC7512N-3K Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page APPLICATIONS q PORTABLE BATTERY-POWERED INSTRUMENTS q DIGITAL GAIN AND OFFSET ADJUSTMENT q PROGRAMMABLE VOLTAGE AND CURRENT SOURCES Low-Power, Rail-to-Rail Output, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER 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. 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. 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. The DAC7512 is available in a SOT23-6 package and an MSOP-8 package. DAC7512 DAC7512 FEATURES q microPOWER OPERATION: 135µA at 5V q POWER-DOWN: 200nA at 5V, 50nA at 3V q POWER SUPPLY: +2.7V to +5.5V q TESTED MONOTONIC BY DESIGN q POWER-ON RESET TO 0V q THREE POWER-DOWN FUNCTIONS q LOW POWER SERIAL INTERFACE WITH SCHMITT-TRIGGERED INPUTS q ON-CHIP OUTPUT BUFFER AMPLIFIER, RAIL-TO-RAIL OPERATION q SYNC INTERRUPT FACILITY q SOT23-6 AND MSOP-8 PACKAGES Power-On Reset DAC Register REF (+) REF (–) 12-Bit DAC Output Buffer Input Control Logic Power-Down Control Logic Resistor Network SYNC SCLK D IN V DD GND V OUT SPI and QSPI are registered trademarks of Motorola. Microwire is a registered trademark of National Semiconductor. DAC7512 SBAS156B – JULY 2002 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2002, Texas Instruments Incorporated 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. |
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