MP7680
5 V CMOS 12-Bit
Quad Double-Buffered Multiplying
Digital-to-Analog Converter
June 2000-2
FEA TURES
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·
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·
·
·
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Exar Pioneered Segmented DAC Approach
Four Double-Buffered 12-bit DACs on a Single Chip
Independent Reference Inputs
Lowest Gain Error in a Multiple DAC Chip
Guaranteed Monotonic
TTL/5 V CMOS Compatible Inputs
Industry Standard Digital Interface
Four Quadrant Multiplication
Latch-Up Free
BENEFITS
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Reduced Board Space; Lower System Cost.
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Independent Control of DACs
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Excellent DAC-to-DAC Matching and Tracking
APPLICA TIONS
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Function Generators
Automatic Test Equipment
Precision Process Controls
Recording Studio Control Boards
GENERAL
DESCRIPTIONS
The MP7680 and the integrate four 12-bit four-quadrant-
multiplying DACs with independent reference inputs and
excellent matching characteristics. The MP7680 grades
offer 1/2, 1 and 2 LSB of relative accuracy. The superior
offers a low 2 LSB of gain error.
Each DAC has double-buffering (an 8 and 4-bit latch and
a 12-bit latch) between the data bus (DB11 - DB0) and the
DAC. The internal 4-bit mux allows the use of 8 or 16-bit
buses. The flexible latch control logic allows to update
one or more DACs simultaneously.
ORDERING
INFORMA
TION
Package
Type
Temperature
Range
Part No.
INL
(LSB)
DNL
(LSB)
Gain Error
(LSB)
Plastic Dip
Plastic Dip
PQFP
PQFP
-40 to +85°C
°
-40 to +85°C
°
-40 to +85°C
°
-40 to +85°C
°
MP7680JN
MP7680KN
MP7680JE
MP7680KE
+2
+1
+2
+1
+4
+2
+4
+2
+16
+16
+16
+16
Rev. 3.10
E1998
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
z
(510) 668-7000
z
(510) 668-7017
EXAR [ EXAR CORPORATION ]
