AD7523, AD7533
August 1997
8-Bit, Multiplying D/A Converters
Description
The AD7523 and AD7533 are monolithic, low cost, high
performance, 8-bit and 10-bit accurate, multiplying digital-to-
analog converter (DAC), in a 16 pin DIP.
Intersil’ thin film resistors on CMOS circuitry provide 10-bit
resolution (8-bit, 9-bit and 10-bit accuracy), with TTL/CMOS
compatible operation.
The AD7523 and AD7533s accurate four quadrant
multiplication, full military temperature range operation, full
input protection from damage due to static discharge by
clamps to V+ and GND, and very low power dissipation
make it a very versatile converter.
Low noise audio gain controls, motor speed controls,
digitally controlled gain and digital attenuators are a few of
the wide range of applications of the AD7523 and AD7533.
Features
• 8-Bit, 9-Bit and 10-Bit Linearity
• Low Gain and Linearity Temperature Coefficients
• Full Temperature Range Operation
• Static Discharge Input Protection
• TTL/CMOS Compatible
• Supply Range . . . . . . . . . . . . . . . . . . . . . . . . +5V to +15V
• Fast Settling Time at 25
o
C . . . . . . . . . . . . 150ns (Max)
• Four Quadrant Multiplication
• AD7533 Direct AD7520 Equivalent
Ordering Information
PART NUMBER
AD7523JN, AD7533JN
AD7523KN, AD7533KN
AD7523LN, AD7533LN
LINEARITY (INL, DNL)
0.2% (8-Bit)
0.1% (9-Bit)
0.05% (10-Bit)
TEMP. RANGE (
o
C)
0 to 70
0 to 70
0 to 70
PACKAGE
16 Ld PDIP
16 Ld PDIP
16 Ld PDIP
PKG. NO.
E16.3
E16.3
E16.3
Pinout
AD7523, AD7533
(PDIP)
TOP VIEW
I
OUT1
1
I
OUT2
2
GND 3
BIT 1 (MSB) 4
BIT 2 5
BIT 3 6
BIT 4 7
BIT 5 8
16 R
FEEDBACK
15 V
REF IN
14 V+
NC/BIT 10
13 (NOTE 1)
12 NC/BIT 9
(NOTE 1)
11 BIT 8
10 BIT 7
9 BIT 6
Functional Block Diagram
V
REF IN
(15)
20kΩ
20kΩ
20kΩ
20kΩ
20kΩ
20kΩ
(3)
10kΩ
10kΩ
10kΩ
10kΩ
SPDT
NMOS
SWITCHES
10kΩ
MSB
(4)
BIT 2
(5)
BIT 3
(6)
I
OUT2
(2)
I
OUT1
(1)
R
FEEDBACK
(16)
NOTE:
1. NC for AD7523 only.
NOTE: Switches shown for digital inputs “High”
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
©
Intersil Corporation 1999
File Number
3105.1
10-8
INTERSIL [ INTERSIL CORPORATION ]
