ISL26132_14 Datasheet, PDF (3/23 Pages) Intersil Corporation – Low-Noise 24-bit Delta Sigma ADC

ISL26132, ISL26134
Pin Descriptions
NAME
DVDD
DGND
XTALIN/CLOCK
PIN NUMBER
ISL26132
ISL26134
1
1
2, 5, 6
2, 5, 6
3
3
XTALOUT
4
4
TEMP
7
-
A1
-
7
A0
8
8
ANALOG/DIGITAL
INPUT/OUTPUT
Digital
Digital
Digital/Digital Input
Digital
Digital Input
Digital Input
DESCRIPTION
Digital Power Supply (2.7V to 5.25V)
Digital Ground
External Clock Input: typically 4.9152MHz. Tie low to activate
internal oscillator. Can also use external crystal across
XTALIN/CLOCK and XTALOUT pins.
External Crystal connection
On-chip Temperature Diode Enable
TABLE 2. INPUT MULTIPLEXER SELECT
ISL26134
ISL26132
A1
A0
CHANNEL
0
0
AIN1
0
1
AIN2
1
0
AIN3
1
1
AIN4
CAP
AIN1+
AIN1-
AIN3+
AIN3-
AIN4-
AIN4+
AIN2-
AIN2+
VREF-
VREF+
AGND
AVDD
GAIN0
GAIN1
9, 10
11
12
-
-
-
-
13
14
15
16
17
18
19
20
9, 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Analog
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog
Analog
Digital Input
PGA Filter Capacitor
Positive Analog Input Channel 1
Negative Analog Input Channel 1
Positive Analog Input Channel 3
Negative Analog Input Channel 3
Negative Analog Input Channel 4
Positive Analog Input Channel 4
Negative Analog Input Channel 2
Positive Analog Input Channel 2
Negative Reference Input
Positive Reference Input
Analog Ground
Analog Power Supply 4.75V to 5.25V
GAIN1
0
0
1
1
TABLE 3. GAIN SELECT
GAIN0
0
1
0
1
GAIN
1
2
64
128
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3
FN6954.3
November 20, 2014