MAX5142 데이터 시트보기 (PDF) - Maxim Integrated
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MAX5142 Datasheet PDF : 12 Pages
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+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs
PIN
MAX5141
MAX5143
MAX5142
MAX5144
1
1
2
2
3
3
4
4
5
5
6
6
—
7
—
8
7
9
8
10
Pin Descriptions
NAME
FUNCTION
REF
CS
SCLK
DIN
CLR
OUT
INV
RFB
VDD
GND
Voltage Reference Input
Chip-Select Input
Serial Clock Input. Duty cycle must be between 40% and 60%.
Serial Data Input
Clear Input. Logic low asynchronously clears the DAC to code 0
(MAX5141/MAX5143) or code 8192 (MAX5142/MAX5144).
DAC Output Voltage
Junction of Internal Scaling Resistors. Connect to external op amp’s inverting input in
bipolar mode.
Feedback Resistor. Connect to external op amp’s output in bipolar mode.
Supply Voltage. Use +3V for MAX5143/MAX5144 and +5V for MAX5141/MAX5142.
Ground
tCSH1
tLDACS
CS
;;;;;;;;; SCLK
tCSHO
DIN
tCSSO
tCH
tDH
tDS
D13
tCL
D12
tCSS1
S0
Figure 1. Timing Diagram
6 _______________________________________________________________________________________
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