ISL267450_14 Datasheet, PDF (2/19 Pages) Intersil Corporation – 12-Bit, 1MSPS SAR ADCs

ISL267450
Typical Connection Diagram
VREF
VREF(P-P)
VREF(P-P)
0.1µF
VREF
VIN+
VIN–
GND
0.1µF ⁺
+3V/5V
SUPPLY
10µF
VDD
SCLK
SDATA
CS
µP/µC
SERIAL
INTERFACE
Pin Configuration
ISL267450
(8 LD SOIC, MSOP)
TOP VIEW
V_{REF 1}
V_{IN+ 2}
V_{IN- 3}
GND ₄
8 ^VDD
7 ^SCLK
6 ^SDATA
5 ^CS
Pin Description
PIN NAME
V_DD
SCLK
SDATA
CS
GND
V_IN–
V_IN+
V_REF
ISL267450
PIN NUMBER
8
7
6
5
4
3
2
1
DESCRIPTION
Supply voltage, +2.7V to 5.25V.
Serial clock input. Controls digital I/O timing and clocks the conversion.
Digital conversion output.
Chip select input. Controls the start of a conversion when going low.
Ground
Negative analog input.
Positive analog input.
Reference voltage.
2
FN8341.0
August 10, 2012