Dual CMOS Multiplying DAC With Anti-Log Transfer Function For Audio Volume Control Applications

The LOGDAC? AD7112 is a monolithic dual multiplying D/A converter featuring wide dynamic range and excellent DAC-to- DAC matching. Both DACs CAN attenuate an Analog input sig- nal over the range 0 dB to 88.5 dB in 0.375 dB steps. It is available in skinny 0.3" wide 20-pin DIPs and in 20-terminal surface mount packages. The degree of attenuation in either channel is determined by the 8-bit word applied to the onboard decode Logic This 8-bit word is decoded into a 17-bit word which is then loaded into one of the 17-bit data Latches determined by DACA/DACB. The fine step resolution over the entire dynamic range is due to the use of these 17-bit DACs The AD7112 is easily interfaced to a standard 8-bit MPU bus via an 8-bit data port and standard Microprocessor control lines. It should be noted that the AD7112 is exactly pin-compatible with the AD7528 an industry standard dual 8-bit multiplying DAC This allows an easy upgrading of existing AD7528 de- signs which would benefit both from the wider dynamic range and the finer step resolution offered by the AD7112. By Analog Devices, Inc.
AD7112 's PackagesAD7112 's pdf datasheet
AD7112BN PDIP
AD7112BNZ PDIP
AD7112BR SOIC
AD7112BRZ SOIC
AD7112BRZ-REEL SOIC
AD7112CN PDIP
AD7112CNZ PDIP
AD7112CR SOIC
AD7112CR-REEL SOIC
AD7112CRZ SOIC
AD7112CRZ-REEL SOIC




AD7112 Pinout, Pinouts
AD7112 pinout,Pin out
This is one package pinout of AD7112,If you need more pinouts please download AD7112's pdf datasheet.

AD7112 Application circuits
AD7112 circuits
This is one application circuit of AD7112,If you need more circuits,please download AD7112's pdf datasheet.


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