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AD5320

Analog Devices
Part Number AD5320
Manufacturer Analog Devices
Description +2.7 V to +5.5 V/ 140 uA/ Rail-to-Rail Output 12-Bit DAC in a SOT-23
Published Mar 23, 2005
Detailed Description a +2.7 V to +5.5 V, 140 ␮A, Rail-to-Rail Output 12-Bit DAC in a SOT-23 AD5320* FUNCTIONAL BLOCK DIAGRAM VDD GND POWER-O...
Datasheet PDF File AD5320 PDF File

AD5320
AD5320

Overview
a +2.
7 V to +5.
5 V, 140 ␮A, Rail-to-Rail Output 12-Bit DAC in a SOT-23 AD5320* FUNCTIONAL BLOCK DIAGRAM VDD GND POWER-ON RESET FEATURES Single 12-Bit DAC 6-Lead SOT-23 and 8-Lead ␮SOIC Packages Micropower Operation: 140 ␮A @ 5 V Power-Down to 200 nA @ 5 V, 50 nA @ 3 V +2.
7 V to +5.
5 V Power Supply Guaranteed Monotonic by Design Reference Derived from Power Supply Power-On-Reset to Zero Volts Three Power-Down Functions Low Power Serial Interface with Schmitt-Triggered Inputs On-Chip Output Buffer Amplifier, Rail-to-Rail Operation SYNC Interrupt Facility APPLICATIONS Portable Battery Powered Instruments Digital Gain and Offset Adjustment Programmable Voltage and Current Sources Programmable Attenuators AD5320 REF (+) REF (–) DAC REGISTER 12-BIT DAC OUTPUT BUFFER VOUT INPUT CONTROL LOGIC POWER-DOWN CONTROL LOGIC RESISTOR NETWORK SYNC SCLK DIN GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The AD5320 is a single, 12-bit buffered voltage out DAC that operates from a single +2.
7 V to +5.
5 V supply consuming 115 µA at 3 V.
Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved.
The AD5320 utilizes a versatile three-wire serial interface that operates at clock rates up to 30 MHz and is compatible with standard SPI™, QSPI™, MICROWIRE™ and DSP interface standards.
The reference for AD5320 is derived from the power supply inputs and thus gives the widest dynamic output range.
The part incorporates a power-on-reset circuit that ensures that the DAC output powers up to zero volts and remains there until a valid write takes place to the device.
The part contains a power-down feature that reduces the current consumption of the device to 200 nA at 5 V and provides software selectable output loads while in power-down mode.
The part is put into power-down mode over the serial interface.
The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment.
The power consumption is 0.
7 mW at 5...


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