
8
12/29/99
SPT7830
PIN ASSIGNMENTS
PIN FUNCTIONS
Name
Function
Analog In
Analog Signal Input
Start Convert
Start Convert. A high-to-low transition on
this input begins the conversion cycle and
enables serial data output.
Clock
Clock that drives A/D conversion cycle and
the synchronous serial data output
Data Out
Serial Data. Tri-state serial data output for
the A/D result driven by the CLOCK input
External V
REF
+
External voltage reference for top of refer-
ence ladder
External V
REF
-
External voltage reference for bottom of
reference ladder
V
DD
Analog and Digital +3 V to +5 V
Power Supply Input
GND
Analog and Digital Ground
Data Out
External VREF+
Analog In
External VREF-
Ground
VDD
Clock
Start Convert
1
2
3
4
8
7
6
5
ORDERING INFORMATION
PART NUMBER
TEMPERATURE RANGE
PACKAGE
SPT7830SCS
0 to +70
°
C
8L SOIC
SPT7830SIS
–40 to +85
°
C
8L SOIC
SPT7830SCU
*Please see the die specification for guaranteed electrical performance.
+25
°
C
Die*
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are
intended for surgical implant into the body, or (b) support or sustain life,
and whose failure to perform, when properly used in accordance with
instructions for use provided in the labeling, can be reasonably expected
to result in a significant injury to the user.
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2. A critical component is any component of a life support device or system
whose failure to perform can be reasonably expected to cause the failure
of the life support device or system, or to affect its safety or effectiveness.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO
IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF
ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF
OTHERS.
Copyright 2002 Fairchild Semiconductor Corporation