REV. B
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a
CMOS
8-Bit Buffered Multiplying DAC
AD7524
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700 Fax: 617/326-8703
FEATURES
Microprocessor Compatible (6800, 8085, Z80, Etc.)
TTL/CMOS Compatible Inputs
On-Chip Data Latches
Endpoint Linearity
Low Power Consumption
Monotonicity Guaranteed (Full Temperature Range)
Latch Free (No Protection Schottky Required)
APPLICATIONS
Microprocessor Controlled Gain Circuits
Microprocessor Controlled Attenuator Circuits
Microprocessor Controlled Function Generation
Precision AGC Circuits
Bus Structured Instruments
GENERAL DESCRIPTION
The AD7524 is a low cost, 8-bit monolithic CMOS DAC
designed for direct interface to most microprocessors.
Basically an 8-bit DAC with input latches, the AD7524’s load
cycle is similar to the “write” cycle of a random access
memory. Using an advanced thin-film on CMOS fabrication
process, the AD7524 provides accuracy to 1/8 LSB with a typi-
cal power dissipation of less than 10 milliwatts.
A newly improved design eliminates the protection Schottky
previously required and guarantees TTL compatibility when
using a +5 V supply. Loading speed has been increased for
compatibility with most microprocessors.
Featuring operation from +5 V to +15 V, the AD7524 inter-
faces directly to most microprocessor buses or output ports.
Excellent multiplying characteristics (2- or 4-quadrant) make
the AD7524 an ideal choice for many microprocessor con-
trolled gain setting and signal control applications.
FUNCTIONAL BLOCK DIAGRAM
ORDERING GUIDE
Temperature Nonlinearity Package
Model
1
Range (V
DD
= +15 V) Option
2
AD7524JN –40°C to +85°C ±1/2 LSB N-16
AD7524KN –40°C to +85°C ±1/4 LSB N-16
AD7524LN –40°C to +85°C ±1/8 LSB N-16
AD7524JP –40°C to +85°C ±1/2 LSB P-20A
AD7524KP –40°C to +85°C ±1/4 LSB P-20A
AD7524LP –40°C to +85°C ±1/8 LSB P-20A
AD7524JR –40°C to +85°C ±1/2 LSB R-16A
AD7524AQ –40°C to +85°C ±1/2 LSB Q-16
AD7524BQ –40°C to +85°C ±1/4 LSB Q-16
AD7524CQ –40°C to +85°C ±1/8 LSB Q-16
AD7524SQ –55°C to +125°C ±1/2 LSB Q-16
AD7524TQ –55°C to +125°C ±1/4 LSB Q-16
AD7524UQ –55°C to +125°C ±1/8 LSB Q-16
AD7524SE –55°C to +125°C ±1/2 LSB E-20A
AD7524TE –55°C to +125°C ±1/4 LSB E-20A
AD7524UE –55°C to +125°C ±1/8 LSB E-20A
NOTES
1
To order MIL-STD-883, Class B processed parts, add/883B to part number.
Contact your local sales office for military data sheet. For U.S. Standard
Military Drawing (SMD) see DESC drawing #5962-87700.
2
E = Leadless Ceramic Chip Carrier: N = Plastic DIP; P = Plastic Leaded Chip
Carrier; Q = Cerdip; R = SOIC.
