
ISL26132, ISL26134
3
FN6954.1
September 9, 2011
Pin Descriptions
NAME
PIN NUMBER
ANALOG/DIGITAL
INPUT/OUTPUT
DESCRIPTION
ISL26132
ISL26134
DVDD
1
Digital
Digital Power Supply (2.7V to 5.25V)
DGND
2, 5, 6
Digital
Digital Ground
XTALIN/CLOCK
3
Digital/Digital Input
External Clock Input: typically 4.9152MHz. Tie low to activate
internal oscillator. Can also use external crystal across
XTALIN/CLOCK and XTALOUT pins.
XTALOUT
4
Digital
External Crystal connection
TEMP
7
-
Digital Input
On-chip Temperature Diode Enable
A1
A0
-
8
7
8
Digital Input
CAP
9, 10
Analog
PGA Filter Capacitor
AIN1+
11
Analog Input
Positive Analog Input Channel 1
AIN1-
12
Analog Input
Negative Analog Input Channel 1
AIN3+
-
13
Analog Input
Positive Analog Input Channel 3
AIN3-
-
14
Analog Input
Negative Analog Input Channel 3
AIN4-
-
15
Analog Input
Negative Analog Input Channel 4
AIN4+
-
16
Analog Input
Positive Analog Input Channel 4
AIN2-
13
17
Analog Input
Negative Analog Input Channel 2
AIN2+
14
18
Analog Input
Positive Analog Input Channel 2
VREF-
15
19
Analog Input
Negative Reference Input
VREF+
16
20
Analog Input
Positive Reference Input
AGND
17
21
Analog
Analog Ground
AVDD
18
22
Analog
Analog Power Supply 4.75V to 5.25V
GAIN0
GAIN1
19
20
23
24
Digital Input
TABLE 2. INPUT MULTIPLEXER SELECT
ISL26134
ISL26132
A1
A0
CHANNEL
00
AIN1
01
AIN2
10
AIN3
11
AIN4
TABLE 3. GAIN SELECT
GAIN1
GAIN0
GAIN
001
012
10
64
11
128