CMOS, 8-Bit,
Buffered Multiplying DAC
Enhanced Product
AD7524-EP
FEATURES
FUNCTIONAL BLOCK DIAGRAM
V
DD
Microprocessor compatible (6800, 8085, Z80)
TTL-/CMOS-compatible inputs
On-chip data latches
14
10kΩ
10kΩ
10kΩ
V
15
REF
20kΩ
20kΩ
20kΩ
20kΩ 20kΩ
Endpoint linearity
Low power consumption
Monotonicity guaranteed (full temperature range)
Latch free (no protection Schottky required)
10kΩ
S1
S2
S3
S8
16
1
R
FB
OUT1
OUT2
2
CHIP SELECT 12
WRITE 13
DATA LATCHES
3
GND
ENHANCED PRODUCT FEATURES
AD7524-EP
Supports defense and aerospace applications (AQEC)
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
4
5
6
3
DB7
(MSB)
DB6
DB5
DB0
(LSB)
DATA INPUTS
Figure 1.
One fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Microprocessor controlled gain circuits
Microprocessor controlled attenuator circuits
Microprocessor controlled function generation
Precision AGC circuits
Bus structured instruments
GENERAL DESCRIPTION
The AD7524-EP is a low cost, 8-bit monolithic CMOS DAC
designed for direct interface to most microprocessors.
Featuring operation from 5 V to 15 V, the AD7524-EP interfaces
directly to most microprocessor buses or output ports.
An 8-bit DAC with input latches, the load cycle of the AD7524-EP
is similar to the write cycle of the random access memory. Using
an advanced thin-film on the CMOS fabrication process, the
AD7524-EP provides accuracy to ⅛ LSB with a typical power
dissipation of less than 10 mW.
Excellent multiplying characteristics (2- or 4-quadrant) make
the AD7524-EP an ideal choice for many microprocessor
controlled gain setting and signal control applications.
Additional application and technical information can be found
in the AD7524 data sheet.
An improved design eliminates the protection Schottky previously
required and guarantees TTL compatibility when using a 5 V
supply. The loading speed has also been increased for compatibility
with most microprocessors.
Rev. 0
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