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Description

General part information

AD7564 Series

The AD7564 contains four 12-bit DACs in one monolithic device. The DACs are standard current output with separate VREF, IOUT1, IOUT2and RFBterminals. These DACs operate from a single +3.3 V to +5 V supply.The AD7564 is a serial input device. Data is loaded usingFSIN, CLKIN and SDIN. Two address pins A0 and A1 set up a device address, and this feature may be used to simplify device loading in a multi-DAC environment. Alternatively, A0 and A1 can be ignored and the serial out capability used to configure a daisy-chained system.All DACs can be simultaneously updated using the asynchronousLDACinput, and they can be cleared by asserting the asynchronousCLRinput.The device is packaged in 28-pin SOIC, SSOP and DIP packages.APPLICATIONSProcess controlPortable instrumentationGeneral purpose test equipment

Technical Specifications

Parameters and characteristics for this part

SpecificationAD7564BRSZ
ArchitectureR-2R
Data InterfaceSPI
Differential OutputYes
DNL (Max) (LSB)0.5 LSB
INL (Max) (LSB)0.5 LSB
Mounting TypeSurface Mount
Number of Bits12 bits
Number of D/A Converters4 count
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Output TypeCurrent - Unbuffered
Package Length0.209 in
Package Name28-SSOP
Package Width5.3 mm
Reference TypeExternal
Settling Time (Typical)550 µs
Voltage - Supply, Analog5 V
Voltage - Supply, Digital5 V

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CAD

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