MP75L43 データシートの表示（PDF） - Exar Corporation
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MP75L43 Datasheet PDF : 8 Pages
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FEATURES
• 3.3 V Operation
• 12-Bit DAC with Serial Digital Input Interface
• Full 4-Quadrant Multiplication
• Latch-Up Free
• Asynchronous CLEAR Input
• Serial Load On Positive or Negative Strobes
• Small Size
• Low Cost
MP75L43
Low Voltage CMOS
Serial Input 12-Bit
Digital-to-Analog Converter
BENEFITS
• Lower Assembly Costs
• Compatible with Serial Addressing Systems
GENERAL DESCRIPTION
The MP75L43 is a precision, 12-bit CMOS 4-quadrant multi-
plying Digital-to-Analog Converter designed for serial interface
applications.
The MP75L43 consists of two 12-bit registers, control logic
and a 12-bit multiplying Digital-to-Analog Converter. The input
register (register A) is a 12-bit serial-in parallel-out shift register.
Serial data at the SRI pin is clocked into Register A on the lead-
ing or trailing edge (user selected) of the strobe input, with the
MSB loaded first. Register B is a 12-bit parallel-in parallel-out
register that follows register A. The contents of register A are
loaded into register B under control of the Load inputs.
A CLEAR input is provided for the asynchronous resetting of
register B to all 0’s.
The MP75L43 is manufactured using an advanced thin film
monolithic CMOS fabrication process. A unique decoding tech-
nique is utilized yielding excellent accuracy and stability. 12-bit
linearity is achieved without laser trimming.
SIMPLIFIED BLOCK DIAGRAM
VREF
CLR
LD1
LD2
STB1
STB4
STB3
STB2
12-Bit D/A Converter
DAC Register B
Load
Register A
12-Bit Shift Register
RFB
IOUT1
IOUT2
AGND
SRI
VDD
DGND
Rev. 1.00
1
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