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AD7541 Datasheet, PDF (1/8 Pages) Intersil Corporation – 12-Bit, Multiplying D/A Converter | |||
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AD7541
August 1997
12-Bit, Multiplying D/A Converter
Features
⢠12-Bit Linearity 0.01%
⢠Pretrimmed Gain
⢠Low Gain and Linearity Tempcos
⢠Full Temperature Range Operation
⢠Full Input Static Protection
⢠TTL/CMOS Compatible
⢠+5V to +15V Supply Range
⢠20mW Low Power Dissipation
⢠Current Settling Time 1µs to 0.01% of FSR
⢠Four Quadrant Multiplication
Description
The AD7541 is a monolithic, low cost, high performance,
12-bit accurate, multiplying digital-to-analog converter
(DAC).
Intersilâ wafer level laser-trimmed thin-ï¬lm 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 IOUT1 and IOUT2 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.
Ordering Information
PART NUMBER
NONLINEARITY
TEMP. RANGE (oC)
PACKAGE
PKG. NO.
AD7541JN
0.02% (11-Bit)
0 to 70
18 Ld PDIP
E18.3
AD7541KN
0.01% (12-Bit)
0 to 70
18 Ld PDIP
E18.3
AD7541LN
0.01% (12-Bit) Guaranteed
Monotonic
0 to 70
18 Ld PDIP
E18.3
Pinout
AD7541
(PDIP)
TOP VIEW
IOUT1 1
IOUT2 2
GND 3
BIT 1 (MSB) 4
BIT 2 5
BIT 3 6
BIT 4 7
BIT 5 8
BIT 6 9
18 RFEEDBACK
17 VREF IN
16 V+
15 BIT 12 (LSB)
14 BIT 11
13 BIT 10
12 BIT 9
11 BIT 8
10 BIT 7
Functional Block Diagram
VREF IN
(17)
20kâ¦
10k⦠10kâ¦
20k⦠20kâ¦
10kâ¦
10kâ¦
20kâ¦
20kâ¦
20kâ¦
(3)
SPDT
NMOS
SWITCHES
MSB
(4)
BIT 2
(5)
BIT 3
(6)
IOUT2 (2)
IOUT1 (1)
10kâ¦
RFEEDBACK
(18)
NOTE: Switches shown for digital inputs âHighâ.
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
10-9
File Number 3107.1
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