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DAC7564ICPWG4 Scheda tecnica(PDF) 1 Page - Texas Instruments |
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DAC7564ICPWG4 Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 51 page DAC7564 24-BitShiftRegister SYNC SCLK D IN DataBufferA DACRegisterA DataBufferB DACRegisterB DataBufferC DACRegisterC DataBufferD DACRegisterD AV DD V REF REF H/V OUT Buffer Control Register Control ControlLogic 2.5V Reference Power-Down ControlLogic 12-BitDAC 12-BitDAC 12-BitDAC 12-BitDAC V A OUT V B OUT V C OUT V D OUT GND LDAC ENABLE A1 A0 DAC7564 IOV DD V REFL DAC7564 www.ti.com SBAS413B – FEBRUARY 2008 – REVISED MAY 2011 12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/ °C Internal Reference Check for Samples: DAC7564 1 FEATURES DESCRIPTION The DAC7564 is a low-power, voltage-output, 234 • Relative Accuracy: 0.5LSB four-channel, 12-bit digital-to-analog converter (DAC). • Glitch Energy: 0.15nV-s The device includes a 2.5V, 2ppm/ °C internal • Internal Reference: reference (enabled by default), giving a full-scale output voltage range of 2.5V. The internal reference – 2.5V Reference Voltage (enabled by default) has an initial accuracy of 0.02% and can source up to – 0.004% Initial Accuracy (typ) 20mA at the VREFH/VREFOUT pin. The device is – 2ppm/°C Temperature Drift (typ) monotonic, provides very good linearity, and minimizes undesired code-to-code transient voltages – 5ppm/°C Temperature Drift (max) (glitch). The DAC7564 uses a versatile 3-wire serial – 20mA Sink/Source Capability interface that operates at clock rates up to 50MHz. • Power-On Reset to Zero-Scale The interface is compatible with standard SPI ™, QSPI ™, Microwire™, and digital signal processor • Ultra-Low Power Operation: 1mA at 5V (DSP) interfaces. • Wide Power-Supply Range: +2.7V to +5.5V The DAC7564 incorporates a power-on-reset circuit • 12-Bit Monotonic Over Temperature Range that ensures the DAC output powers up at zero-scale • Settling Time: 10 μs to ±0.024% Full-Scale and remains there until a valid code is written to the Range (FSR) device. The device contains a power-down feature, • Low-Power Serial Interface with accessed over the serial interface, that reduces the Schmitt-Triggered Inputs: Up to 50MHz current consumption of the device to 1.3 μA at 5V. Power consumption is 2.9mW at 3V, reducing to • On-Chip Output Buffer Amplifier with 1.5 μW in power-down mode. The low power Rail-to-Rail Operation consumption, internal reference, and small footprint • 1.8V to 5.5V Logic Compatibility make this device ideal for portable, battery-operated • Temperature Range: –40°C to +105°C equipment. The DAC7564 is drop-in and functionally compatible APPLICATIONS with the DAC8164 and DAC8564, and functionally compatible with the DAC7565, DAC8165 and • Portable Instrumentation DAC8565. All these devices are available in a • Closed-Loop Servo-Control TSSOP-16 package. • Process Control, PLCs • Data Acquisition Systems • Programmable Attenuation • PC Peripherals RELATED DEVICES 16-BIT 14-BIT 12-BIT Pin and Functionally DAC8564 DAC8164 DAC7564 Compatible Functionally DAC8565 DAC8165 DAC7565 Compatible 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, QSPI are trademarks of Motorola, Inc. 3 Microwire is a trademark of National Semiconductor. 4 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2011, 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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