AD7541
12-Bit, Multiplying D/A Converter
August 1997
Features
Description
• 12-Bit Linearity 0.01%
The AD7541 is a monolithic, low cost, high performance,
12-bit accurate, multiplying digital-to-analog converter
(DAC).
• Pretrimmed Gain
• Low Gain and Linearity Tempcos
• Full Temperature Range Operation
• Full Input Static Protection
• TTL/CMOS Compatible
Intersil’ wafer level laser-trimmed thin-film resistors on
CMOS circuitry provide true 12-bit linearity with TTL/CMOS
compatible operation.
Special tabbed-resistor geometries (improving time stability),
full input protection from damage due to static discharge by
diode clamps to V+ and ground, large I
lines (improving superposition errors) are some of the fea-
tures offered by Intersil AD7541.
and I
bus
• +5V to +15V Supply Range
• 20mW Low Power Dissipation
• Current Settling Time 1µs to 0.01% of FSR
• Four Quadrant Multiplication
OUT1
OUT2
Pin compatible with AD7521, this DAC provides accurate
four quadrant multiplication over the full military temperature
range.
Ordering Information
o
PART NUMBER
AD7541JN
NONLINEARITY
TEMP. RANGE ( C)
PACKAGE
18 Ld PDIP
PKG. NO.
E18.3
0.02% (11-Bit)
0.01% (12-Bit)
0 to 70
AD7541KN
AD7541LN
0 to 70
18 Ld PDIP
18 Ld PDIP
E18.3
E18.3
0.01% (12-Bit) Guaranteed
Monotonic
0 to 70
Pinout
Functional Block Diagram
AD7541
(PDIP)
TOP VIEW
V
10kΩ
10kΩ
10kΩ
10kΩ
REF IN
(17)
20kΩ
20kΩ
20kΩ
20kΩ
20kΩ
20kΩ
1
2
3
4
5
6
7
8
9
18
17
I
I
R
V
OUT1
FEEDBACK
(3)
OUT2
GND
REF IN
16 V+
SPDT
NMOS
SWITCHES
BIT 1 (MSB)
BIT 2
15 BIT 12 (LSB)
14 BIT 11
13 BIT 10
I
(2)
(1)
OUT2
I
OUT1
BIT 3
10kΩ
BIT 4
12
11
10
BIT 9
BIT 8
BIT 7
R
MSB
(4)
BIT 2
(5)
BIT 3
(6)
FEEDBACK
(18)
BIT 5
BIT 6
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 3107.1
10-9