MAX132C/D Maxim Integrated, MAX132C/D Datasheet - Page 5

• Manufacturer Part Number: MAX132C/D
• Description: Analog to Digital Converters - ADC
• Manufacturer: Maxim Integrated

Specifications of MAX132C/D

• Number Of Channels: 1
• Architecture: Multi-Slope
• Conversion Rate: 0.1 KSPs
• Input Type: Differential
• Interface Type: 4-Wire (SPI, Microwire, QSPI, TMS320)
• Operating Supply Voltage: +/- 5 V
• Maximum Power Dissipation: 478 mW
• Number Of Converters: 1

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