HI-DAC80V,
HI-DAC85V
August 1997
12-Bit, Low Cost, Monolithic D/A Converters
Features
Description
• DAC 80V/DAC 85V Alternative Source
• Monolithic Construction
The Hl-DAC80V is a monolithic direct replacement for the
popular DAC80 and AD DAC80. The HI-DAC85V is a mono-
lithic direct replacement for the popular DAC85 and AD
• Fast Settling Time (Typ) . . . . . . . . . . . . . . . . . . . . 1.5µs
• Guaranteed Monotonicity
DAC85 as well as the HI-5685V. Single chip construction
along with several design innovations make the Hl-DAC80V
the optimum choice for low cost, high reliability applications.
Intersil’ unique Dielectric Isolation (Dl) processing reduces
internal parasitics resulting in fast switching times and mini-
mum glitch. On board span resistors are provided for good
tracking over temperature, and are laser trimmed to high
accuracy.
• Wafer Laser Trimmed Linearity, Gain, Offset
• Span Resistors On-Chip
• On-Board Reference
• Supply Operation. . . . . . . . . . . . . . . . . . . . . . . . . . ±12V
Applications
Internally the Hl-DAC80V/HI-DAC85V eliminates code
dependent ground currents by routing current from the posi-
tive supply to the internal ground node, as determined by an
auxiliary R2R ladder. This results in a cancellation of code
dependent ground currents allowing virtually zero variation
in current through the package common, pin 21.
• High Speed A/D Converters
• Precision Instrumentation
• CRT Display Generation
Ordering Information
The Hl-DAC80V is available as a voltage output device which
o
o
is guaranteed over the 0 C to 75 C temperature range. The
HI-DAC85V is available as a voltage output device which is
TEMP.
PKG.
NO.
o
PART NUMBER RANGE ( C)
PACKAGE
24 Ld PDIP
24 Ld PDIP
o
o
guaranteed over the -25 C to 85 C temperature range. It
includes a buried zener reference featuring a low temperature
coefficient as well as an on board operational amplifier. The
Hl-DAC80V requires only two power supplies and will operate
in the range of ± (11.4V to 16.5V).
HI3-DAC80V-5
HI3-DAC85V-4
0 to 75
E24.6
E24.6
-25 to 85
Pinout
HI-DAC80V/HI-DAC85V
(PDIP)
TOP VIEW
(MSB) BIT 1
1
2
3
4
5
6
7
8
9
24
6.3V REF OUT
23 GAIN ADJUST
22 +V
BIT 2
BIT 3
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8
BIT 9
S
21 COMMON
20 ∑ JUNCTION
19 20V RANGE
18 10V RANGE
17 BIPOLAR OFFSET
16 REF INPUT
BIT 10 10
BIT 11 11
15
V
OUT
14 -V
S
(LSB) BIT 12 12
13 NC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 3110.1
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
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