Rainbow Electronics DS1780 User Manual
Page 22
DS1780
22 of 28
4. This register will latch an 8-bit value into an R-2R D/A to provide a range of 0-1.25 volts; accuracy
can be ±5% or more.
5. This location will contain the company identification number which will be used by software to
determine analog voltage curves; this register is read only.
6. This location will contain the stepping number of the part; this register is read only.
ABSOLUTE MAXIMUM RATINGS*
Voltage on V
DD
(GNDD-0.3V) to +6.5V
Voltage on any other pin (except Analog Inputs)
(GNDD-0.3V) to (V
DD
+ 0.3V)
Voltage at +12V
IN
pin
(GNDD-0.3V) to 18V
Voltage at other Analog input pins
(GNDD-0.3V) to 7.0V
Ground Difference (GNDD-GNDA)
±0.3V
Input Current at any Pin (Note 2)
±5 mA
Package Input Current (Note 2)
±20 mA
Operating Temperature
-40°C to +125°C
Storage Temperature
-65°C to +150°C
ESD Susceptibility (Human Body Model)
2kV
Soldering Temperature (Note 3)
215°C for 60 seconds (Vapor Phase)
220°C for 15 seconds (IR)
* This is a stress rating only and functional operation of the device at these or any other conditions above
those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
The Dallas Semiconductor DS1780 is built to the highest quality standards and manufactured for long
term reliability. All Dallas Semiconductor devices are made using the same quality materials and
manufacturing methods. However, the DS1780 is not exposed to environmental stresses, such as burn-in,
that some industrial applications require. For specific reliability information on this product, please
contact the factory in Dallas at (972) 371-4448.
RECOMMENDED DC OPERATING CONDITIONS
(-40°C to +125°C, 2.8V
≤
V
DD
≤
5.75V)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
NOTES
Supply Voltage
V
DD
2.8
5.75
V
Ground Difference
∆GND
IGNDD-
GNDAI
0.1
V
Digital
Input Voltage
V
IND
-0.05
V
DD
+0.05
V