CMOS Low Cost,
10-Bit Multiplying DAC
AD7533
FEATURES
GENERAL DESCRIPTION
Low cost 10-bit DAC
Low cost AD7520 replacement
Linearity: ½ LSB, 1 LSB, or 2 LSB
Low power dissipation
Full 4-quadrant multiplying DAC
CMOS/TTL direct interface
Latch free (protection Schottky not required)
Endpoint linearity
The AD7533 is a low cost, 10-bit, 4-quadrant multiplying DAC
manufactured using an advanced thin-film-on-monolithicCMOS wafer fabrication process.
Pin and function equivalent to the AD7520 industry standard,
the AD7533 is recommended as a lower cost alternative for old
AD7520 sockets or new 10-bit DAC designs.
AD7533 application flexibility is demonstrated by its ability to
interface to TTL or CMOS, operate on 5 V to 15 V power, and
provide proper binary scaling for reference inputs of either
positive or negative polarity.
APPLICATIONS
Digitally controlled attenuators
Programmable gain amplifiers
Function generation
Linear automatic gain controls
FUNCTIONAL BLOCK DIAGRAM
10kΩ
VREF
10kΩ
10kΩ
20kΩ
20kΩ
20kΩ
20kΩ
S1
S2
S3
SN
20kΩ
IOUT2
IOUT1
BIT 1 (MSB)
BIT 2
BIT 3
BIT 10 (LSB)
DIGITAL INPUTS (DTL/TTL/CMOS COMPATIBLE)
RFB
01134-001
10kΩ
Figure 1.
Rev. C
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