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DAC088S085 датащи(PDF) 1 Page - Texas Instruments |
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DAC088S085 датащи(HTML) 1 Page - Texas Instruments |
1 / 35 page DAC088S085 www.ti.com SNAS424C – AUGUST 2007 – REVISED MARCH 2013 DAC088S085 8-Bit Micro Power OCTAL Digital-to-Analog Converter with Rail-to-Rail Outputs Check for Samples: DAC088S085 1 FEATURES DESCRIPTION The DAC088S085 is a full-featured, general purpose 23 • Ensured Monotonicity OCTAL 8-bit voltage-output digital-to-analog • Low Power Operation converter (DAC) that can operate from a single +2.7V • Rail-to-Rail Voltage Output to +5.5V supply and consumes 1.95 mW at 3V and 4.85 mW at 5V. The DAC088S085 is packaged in a • Daisy Chain Capability 16-lead WQFN package and a 16-lead TSSOP • Power-on Reset to 0V package. The WQFN package makes the • Simultaneous Output Updating DAC088S085 the smallest OCTAL DAC in its class. The on-chip output amplifiers allow rail-to-rail output • Individual Channel Power Down Capability swing and the three wire serial interface operates at • Wide power supply range (+2.7V to +5.5V) clock rates up to 40 MHz over the entire supply • Dual Reference Voltages with range of 0.5V to voltage range. Competitive devices are limited to 25 VA MHz clock rates at supply voltages in the 2.7V to 3.6V range. The serial interface is compatible with • Operating Temperature Range of −40°C to standard SPI™, QSPI, MICROWIRE and DSP +125°C interfaces. The DAC088S085 also offers daisy chain • Industry's Smallest Package operation where an unlimited number of DAC088S085s can be updated simultaneously using APPLICATIONS a single serial interface. • Battery-Powered Instruments There are two references for the DAC088S085. One • Digital Gain and Offset Adjustment reference input serves channels A through D while the other reference serves channels E through H. • Programmable Voltage & Current Sources Each reference can be set independently between • Programmable Attenuators 0.5V and VA, providing the widest possible output • Voltage Reference for ADCs dynamic range. The DAC088S085 has a 16-bit input shift register that controls the mode of operation, the • Sensor Supply Voltage power-down condition, and the DAC channels' • Range Detectors register/output value. All eight DAC outputs can be updated simultaneously or individually. KEY SPECIFICATIONS A power-on reset circuit ensures that the DAC • Resolution: 8 bits outputs power up to zero volts and remain there until • INL: ±0.5 LSB (max) there is a valid write to the device. The power-down feature of the DAC088S085 allows each DAC to be • DNL: +0.15 / −0.1 LSB (max) independently powered with three different • Settling Time: 4.5 µs (max) termination options. With all the DAC channels • Zero Code Error: +15 mV (max) powered down, power consumption reduces to less than 0.3 µW at 3V and less than 1 µW at 5V. The low • Full-Scale Error: −0.75 %FSR (max) power consumption and small packages of the • Supply Power : DAC088S085 make it an excellent choice for use in – Normal: 1.95 mW (3V) / 4.85 mW (5V) typ battery operated equipment. – Power Down: 0.3 µW (3V) / 1 µW (5V) typ 1 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. 2 SPI is a trademark of Motorola, Inc.. 3 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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