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參數(shù)資料
| 型號(hào)： | DS1668 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
| 封裝： | 0.600 INCH, DIP-28 |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大小： | 238K |
| 代理商： | DS1668 |
MAX541/MAX542
+5V, Serial-Input, Voltage-Output, 16-Bit DACs
6
_______________________________________________________________________________________
________________________________________________Pin Descriptions (continued)
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tCSHO
tCH
tCSSO
tCL
tDH
tDS
tCSH1
tCSS1
tLDACS
tLDAC
CS
SCLK
DIN
LDAC*
*MAX542 ONLY
D15
D14
D0
Figure 1. Timing Diagram
+5V Supply Voltage
VDD
Digital Ground
DGND
12
LDAC Input. A falling edge updates the internal DAC latch.
LDAC
11
Serial Data Input
DIN
10
No Connection. Not internally connected.
N.C.
9
Serial Clock Input. Duty cycle must be between 40% and 60%.
SCLK
8
Chip-Select Input
CS
7
Voltage Reference Input (force). Connect REFF to external +2.5V reference.
REFF
6
Voltage Reference Input (sense). Connect REFS to external +2.5V reference.
REFS
5
Analog Ground (sense)
AGNDS
4
Analog Ground (force)
AGNDF
3
DAC Output Voltage
OUT
2
Feedback Resistor. Connect to external op amp’s output in bipolar mode.
RFB
1
FUNCTION
NAME
PIN
Junction of internal scaling resistors. Connect to external op amp’s inverting input in
bipolar mode.
INV
13
14
MAX542
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