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| MAX1407 Datasheet, PDF (41/48 Pages) Maxim Integrated Products – Low-Power, 16-Bit Multichannel DAS with Internal Reference,10-Bit DACs, and RTC | |||
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Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
Table 11. Unipolar Code Table
DAC CONTENTS
MSB
LSB
1111 1111 11
1000 0000 01
1000 0000 00
0111 1111 11
0000 0000 01
0000 0000 00
ANALOG OUTPUT
+VREF(1023/1024)
+VREF (513/1024)
+VREF (512/1024) = +VREF/2
+VREF (511/1024)
+VREF (1/1024)
0
Table 12. Bipolar Code Table
DAC CONTENTS
MSB
LSB
1111 1111 11
1000 0000 01
1000 0000 00
0111 1111 11
0000 0000 01
0000 0000 00
ANALOG OUTPUT
+VREF (511/512)
+VREF (1/512)
0
-VREF (1/512)
-VREF (511/512)
-VREF (512/512) = -VREF
10µH
LX
OUT
RST
MAX1833
BATT
SHDN
GND
VBAT
E1*
10µF
VDD = 3.3V OR VBAT
10µF
18nF
0.1µF
0.1µF
CPLL
SHDN
IN0
AVDD
MAX1407
MAX1408
MAX1414
DVDD
RESET
WU1
AGND
DGND
*ONE Li+ COIN, TWO ALKALINE, OR TWO BUTTON CELLS
Figure 19. Power-Supply Circuit Using MAX1833 Step-Up DC-DC Converter
0.33µF
CXN CXP
IN
OUT
POK
MAX1759
SHDN
FB GND PGND
R
VBAT
E1*
10µF
R
VDD = 3.3V
10µF
18nF
0.1µF
0.1µF
CPLL AVDD
DVDD
SHDN
IN0
MAX1407
MAX1408
MAX1414
RESET
WU1
AGND
DGND
0.1µF
VDD
RESET
µP/µC
INPUT
VSS
0.1µF
VDD
RESET
µP/µC
INPUT
VSS
*ONE Li+ COIN, ONE Li+, 2-3 ALKALINE, 2-3 NIMH, OR 2-3 BUTTON CELLS
Figure 20. Power-Supply Circuit Using MAX1759 Buck-Boost DC-DC Converter
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