max5741 Maxim Integrated Products, Inc., max5741 Datasheet - Page 11
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max5741
Manufacturer Part Number
max5741
Description
Max5741 10-bit, Low-power, Quad, Voltage-output Dac With Serial Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX5741.pdf
(15 pages)
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The digital inputs are compatible with CMOS logic. In
order to save power and reduce input to output cou-
pling, SCLK and DIN input buffers are powered down
immediately after completion of shifting 16 bits into the
input shift register. A high to low transition at CS pow-
ers up SCLK and DIN input buffers.
Figure 1. 16-Bit Input Word
Figure 2. Timing Diagram
CONTENTS OF INPUT SHIFT
SCLK
C3
DIN
CS
C2
10-Bit, Low-Power, Quad, Voltage-Output
C1
______________________________________________________________________________________
C0
D9
D9 (MSB)
t
CSW
Digital Inputs
t
CL
D8
t
CSS
D7
t
t
CH
DS
C3
D6
DAC with Serial Interface
t
DH
The typical application circuit (Figure 3) shows the
MAX5741 configured for a unipolar output, where the
output voltages and the reference inputs have the
same polarity. Table 3 lists the unipolar output codes.
The MAX5741 can be configured for bipolar operation
using a dual supply op amp (Figure 4). The transfer
function for bipolar operation is:
D5
D4
D3
Applications Information
V
OUT
=
D2
V
REF
SO
D1
1024
t
CSH
2D
Unipolar Output
D0 (LSB)
D0
Bipolar Output
−
1
S1
S0
11