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MAX132 View Datasheet(PDF) - Maxim Integrated

Part Name
Description
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MAX132
MaximIC
Maxim Integrated MaximIC
MAX132 Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
±18-Bit ADC with Serial Interface
_________________________________________________Pin Description (continued)
PIN
NAME
FUNCTION
9
P2
User-programmable output bit 2—programmed through the serial port.
10
P3
User-programmable output bit 3—programmed through the serial port.
11
EOC
End of Conversion Output goes high at end of conversion.
12
DGND Digital Ground—power-supply return
13
V-
Negative Supply, nominally -5V
14
IN HI
Positive Analog Input
15
IN LO Negative Analog Input
16
AGND Analog Ground
17
REF-
Negative Reference Input
18
REF+
Positive Reference Input
19
CREF+ Positive Reference Capacitor connection
20
CREF- Negative Reference Capacitor connection
21
INT IN Integrator Input. Connect the integration capacitor between INT IN and INT OUT.
22 INT OUT Integrator Output. To minimize noise, this pin should drive the capacitor’s outside foil (negative end).
23 BUF OUT Buffer-Amplifier Output drives the integrator resistor.
24
V+
Positive Supply, nominally +5V
0.1µF
20
CREF-
1 CS
4 SCLK
11 EOC
2 DIN
3 DOUT
7 P0
8 P1
9 P2
10 P3
MAX132
OSC1
6
32,768Hz
15pF
+5V
19
CREF+
V+
24
BUF OUT 23 602k
INT OUT 22
21 4.7nF
INT IN
REF+ 18
REF- 17
AGND 16
IN LO 15
IN HI 14
V- 13
-5V
DGND 12
OSC2
5
15pF
2.5V
120k
100k
40.2k
512mV INPUT
MAX872
Figure 1. Test and Typical Application Circuit
_______________________________________________________________________________________ 5
 

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