ISL267440 Datasheet, PDF (2/17 Pages) Intersil Corporation – 10-Bit and 12-Bit, 1MSPS SAR ADCs

ISL267440, ISL267450A
Typical Connection Diagram
VREF
+3V/5V
+ ^0.1μF + ^{10μF SUPPLY}
REFP-P
REFP-P
Pin Configuration
VREF
VIN+
VIN–
GND
VDD
SCLK
SDATA
CS
SERIAL
INTERFACE
μP/μC
ISL267440, ISL267450A
(8 LD MSOP)
TOP VIEW
VREF ¹
VIN+ 2
VIN– 3
GND 4
8 VDD
7 SCLK
6 SDATA
5 CS
Pin Descriptions
ISL267440, ISL267450A
PIN NAME PIN NUMBER
DESCRIPTION
VDD
8
Supply voltage, +2.7V to 5.25V.
SCLK
7
Serial clock input. Controls digital I/O timing and clocks the conversion.
SDATA
6
Digital conversion output.
CS
5
Chip select input. Generally controls the start of a conversion though not always the sampling signal.
GND
4
Ground
VIN–
3
Negative analog input.
VIN+
2
Positive analog input.
VREF
1
Reference voltage.
2
FN7708.0
December 5, 2011