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MFG:ADI D/C:09
Part Number: AD5302
MFG: ADI
D/C: 09
Description: The AD5302/AD5312/AD5322 are dual 8-, 10- and 12-bit bufferedvoltage output DACs in a 10-lead mSOIC package thatoper...
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AD5302
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DataSheet
General Description
AD5302 General Description
The AD5302/AD5312/AD5322 are dual 8-, 10- and 12-bit bufferedvoltage output DACs in a 10-lead mSOIC package thatoperate from a single +2.5 V to +5.5 V supply consuming230 mA at 3 V. Their on-chip output amplifiers allow the outputsto swing rail-to-rail with a slew rate of 0.7 V/ms.heAD5302/AD5312/AD5322 utilize a versatile 3-wire serial interface whichoperates at clock rates up to 30 MHz and is compatible withstandard SPI™, QSPI™, MICROWIRE™ and DSP interfacestandards.
The references for the two DACs are derived from two referencepins (one per DAC). The reference inputs may be configured asbuffered or unbuffered inputs. The outputs of both DACs maybe updated simultaneously using the asynchronous LDAC input.Theparts incorporate a power-on-reset circuit that ensuresthat the DAC outputs power-up to 0 V and remain there until avalid write takesplace to the device. The parts contain a powerdownfeature that reduces the current consumption of thedevices to 200 nA at 5 V (50 nA at 3 V) and provides softwareselectableoutput loads while in power-down mode.
The low power consumption of these parts in normal operationmake them ideally suited to portable battery operated equipment.The power consumption is 1.5 mW at 5 V, 0.7 mW at3 V, reducing to 1 mW in power-down mode.
AD5302 Maximum Ratings
(TA = +25 unless otherwise noted)
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 0.3 V to +7 V
Digital Input Voltage to GND . . . . . . . . . .0.3 V to VDD + 0.3 V
Reference Input Voltage to GND . . . . . . .0.3 V to VDD + 0.3 V
VOUTA, VOUTB to GND . . . . . . . . . . . . . . 0.3 V to VDD + 0.3 V
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . . .. 40 to +105
Storage Temperature Range . . . . . . . . . . . . . 65 to +150
Junction Temperature (TJ Max) . . . . . . . . . . . . . . . . . .. .+150
10-Lead mSOIC Package
Power Dissipation . . . . . . . . . . . . . . . . . . . . .. .(TJ MaxTA)/qJA
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . .. .206/W
qJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . .. .. . 44/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .+215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . .+220
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 0.3 V to +7 V
Digital Input Voltage to GND . . . . . . . . . .0.3 V to VDD + 0.3 V
Reference Input Voltage to GND . . . . . . .0.3 V to VDD + 0.3 V
VOUTA, VOUTB to GND . . . . . . . . . . . . . . 0.3 V to VDD + 0.3 V
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . . .. 40 to +105
Storage Temperature Range . . . . . . . . . . . . . 65 to +150
Junction Temperature (TJ Max) . . . . . . . . . . . . . . . . . .. .+150
10-Lead mSOIC Package
Power Dissipation . . . . . . . . . . . . . . . . . . . . .. .(TJ MaxTA)/qJA
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . .. .206/W
qJC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . .. .. . 44/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .+215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . .+220
AD5302 Features
AD5302: Two 8-Bit Buffered DACs in One Package
AD5312: Two 10-Bit Buffered DACs in One Package
AD5322: Two 12-Bit Buffered DACs in One Package
10-Lead mSOIC PackageMicropower Operation: 300 mA @ 5 V (IncludingReference Current)Power-Down to 200 nA @ 5 V, 50 nA @ 3 V+2.5 V to +5.5 V Power SupplyDouble-Buffered Input LogicGuaranteed Monotonic By Design Over All CodesBuffered/Unbuffered ReferenceInputOptions0VREF Output VoltagePower-On-Reset to Zero VoltsSimultaneous Update of DAC Outputs via LDAC Low Power Serial Interface with Schmitt-TriggeredInputsOn-Chip Rail-to-Rail Output Buffer Amplifiers
AD5312: Two 10-Bit Buffered DACs in One Package
AD5322: Two 12-Bit Buffered DACs in One Package
10-Lead mSOIC PackageMicropower Operation: 300 mA @ 5 V (IncludingReference Current)Power-Down to 200 nA @ 5 V, 50 nA @ 3 V+2.5 V to +5.5 V Power SupplyDouble-Buffered Input LogicGuaranteed Monotonic By Design Over All CodesBuffered/Unbuffered ReferenceInputOptions0VREF Output VoltagePower-On-Reset to Zero VoltsSimultaneous Update of DAC Outputs via LDAC Low Power Serial Interface with Schmitt-TriggeredInputsOn-Chip Rail-to-Rail Output Buffer Amplifiers
AD5302 Typical Application
Portable Battery-Powered InstrumentsDigital Gain and Offset AdjustmentProgrammable Voltage and Current SourcesProgrammable Attenuators
AD5302 Connection Diagram
AD5302
PDF/DataSheet Download
- Datasheet: AD5302
- File Size: 332248 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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