ISL26102_14 Datasheet, PDF (3/21 Pages) Intersil Corporation – Low-Noise 24-bit Delta Sigma ADC

ISL26102, ISL26104
Pin Descriptions (TSSOP)
PIN NAME
DVDD
DGND
XTALIN/CLOCK
PIN NUMBER
ISL26102
ISL26104
1, 6
1, 6
2, 5, 7, 8
3
2, 5, 7, 8
3
XTALOUT
CAP
AIN1+
AIN1-
AIN3+
AIN3-
AIN4-
AIN4+
AIN2-
AIN2+
VREF-
VREF+
AGND
AVDD
LSPS
CS
SDI
PDWN
SCLK
SDO/RDY
4
9, 10
11
12
-
-
-
-
13
14
15
16
17
18
19
20
21
22
23
24
4
9, 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
ANALOG/DIGITAL
INPUT/OUTPUT
Digital
Digital
Digital/Digital Input
Digital
Analog
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Digital Output
Digital Input
Digital Input
Digital Input
Digital Input
Digital Output
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
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
Low-Side Power Switch (Open Drain)
Chip Select (Active Low)
Serial Data Input
Device Power Down (Active Low)
Serial Port Clock
Data Ready signal (conversion complete) and
Serial Data Output
3
FN7608.0
October 12, 2012