AD7541
August 1997
12-Bit, Multiplying D/A Converter
Description
The AD7541 is a monolithic, low cost, high performance,
12-bit accurate, multiplying digital-to-analog converter
(DAC).
Intersil鈥?wafer level laser-trimmed thin-鏗乴m 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
OUT1
and I
OUT2
bus
lines (improving superposition errors) are some of the fea-
tures offered by Intersil AD7541.
Pin compatible with AD7521, this DAC provides accurate
four quadrant multiplication over the full military temperature
range.
Features
鈥?12-Bit Linearity 0.01%
鈥?Pretrimmed Gain
鈥?Low Gain and Linearity Tempcos
鈥?Full Temperature Range Operation
鈥?Full Input Static Protection
鈥?TTL/CMOS Compatible
鈥?+5V to +15V Supply Range
鈥?20mW Low Power Dissipation
鈥?Current Settling Time 1碌s to 0.01% of FSR
鈥?Four Quadrant Multiplication
Ordering Information
PART NUMBER
AD7541JN
AD7541KN
AD7541LN
NONLINEARITY
0.02% (11-Bit)
0.01% (12-Bit)
0.01% (12-Bit) Guaranteed
Monotonic
TEMP. RANGE (
o
C)
0 to 70
0 to 70
0 to 70
PACKAGE
18 Ld PDIP
18 Ld PDIP
18 Ld PDIP
PKG. NO.
E18.3
E18.3
E18.3
Pinout
AD7541
(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
BIT 6 9
18 R
FEEDBACK
17 V
REF IN
16 V+
15 BIT 12 (LSB)
14 BIT 11
13 BIT 10
Functional Block Diagram
V
REF IN
(17)
20k鈩?/div>
20k鈩?/div>
20k鈩?/div>
20k鈩?/div>
20k鈩?/div>
20k鈩?/div>
(3)
10k鈩?/div>
10k鈩?/div>
10k鈩?/div>
10k鈩?/div>
SPDT
NMOS
SWITCHES
10k鈩?/div>
I
OUT2
(2)
I
OUT1
(1)
12 BIT 9
11 BIT 8
10 BIT 7
MSB
(4)
BIT 2
(5)
BIT 3
(6)
R
FEEDBACK
(18)
NOTE: Switches shown for digital inputs 鈥淗igh鈥?
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
3107.1
10-9
AD7541 PDF文件相關(guān)型號
AD7541JN,AD7541KN,AD7541LN
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