參數(shù)資料
型號(hào): MAX132
廠商: Maxim Integrated Products, Inc.
英文描述: 18-Bit ADC with Serial Interface(±18-BIT,單通道,具有串行接口的ADC)
中文描述: ±18位ADC,串行接口
文件頁(yè)數(shù): 5/16頁(yè)
文件大?。?/td> 168K
代理商: MAX132
M
±18-Bit ADC with S erial Interfac e
_______________________________________________________________________________________
5
MAX132
CREF-
CREF+
1
20
CS
602k
4
SCLK
3
DOUT
2
DIN
11
EOC
7
P0
8
P1
9
P2
10
P3
23
19
22
21
-5V
512mV INPUT
18
17
6
5
15pF
15pF
BUF OUT
INT OUT
INT IN
4.7nF
32,768Hz
REF+
REF-
16
15
AGND
IN LO
14
IN HI
13
12
V-
24
V+
DGND
OSC2
OSC1
0.1
μ
F
120k
100k
40.2k
2.5V
MAX872
+5V
Figure 1. Test and Typical Application Circuit
_________________________________________________Pin Desc ription (c ontinued)
End of Conversion Output goes high at end of conversion.
Digital Ground—power-supply return
EOC
DGND
11
12
Positive Supply, nominally +5V
V+
24
User-programmable output bit 3—programmed through the serial port.
P3
10
Negative Reference Capacitor connection
Integrator Input. Connect the integration capacitor between INT IN and INT OUT.
CREF-
INT IN
20
21
Positive Reference Capacitor connection
CREF+
19
Positive Reference Input
REF+
18
Negative Reference Input
REF-
17
Analog Ground
AGND
16
Negative Analog Input
IN LO
15
Buffer-Amplifier Output drives the integrator resistor.
BUF OUT
23
User-programmable output bit 2—programmed through the serial port.
P2
9
PIN
Integrator Output. To minimize noise, this pin should drive the capacitor’s outside foil (negative end).
INT OUT
22
FUNCTION
NAME
Positive Analog Input
IN HI
14
Negative Supply, nominally -5V
V-
13
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