|
|
|
FEATURES
|
|
|
|
Two
10-Bit
Nonvolatile
DACs
|
|
|
|
1024
Steps
Each
DAC,
Guaranteed
Monotonic
|
|
|
Excellent
Temperature
Stability
±25ppm/°C
Max
|
|
|
|
Industrial
Temperature
Range
-40°C
to
+85°C
|
|
|
Automatic
Power-On
Recall
|
|
|
No
"Power-On
Slew
Rate"
Requirement
|
|
|
Parallel
or
Independent
Operation
of
DACs
|
|
|
Programmable
Power
Down
Mode
(Short
DAC
Outputs
to GND
or
Float
DAC
Outputs)
|
|
|
I2C
Serial
Bus
Interface
|
|
|
Low
Noise
DAC
Output
Amplifiers
|
|
|
2.7V
to
5.5V
Operation,
Small
SSOP
Package
|
|
|
|
|
APPLICATIONS
|
|
|
ATE
Set
and
Forget
Calibration
|
|
Laser
Diode
Bias/Modulation
Current
Adjustment
|
|
RF
Power
Amplifier
Biasing
|
|
Power
Supply
Trimming/Margining
|
|
Potentiometer
Replacement
|
|
|
|
|
|
|
ORDERING
INFORMATION
|
|
|
|
|
|
|
|
SMP9210/9211/9212
|
|
Dual
10-Bit Nonvolatile
DAC
|
|
|
|
INTRODUCTION
|
|
The
SMP9210, -11,
-12 family
consists of
serial input,
voltage output,
dual 10-bit
(1024 steps)
digital-to-analog
converters. The
devices will
recall any Dac
output voltage
on power up and
can operate
from a single
+2.7V to +5.5V
supply. The
maximum output
Temperature
Coefficient
(Tc) of
±25ppm/0C
make them ideal
for high
accuracy and
temperature
stable
calibration
purposes.
Internal
precision
buffers swing
rail-to-rail
with an input
reference range
from ground to
the positive
supply.
The parts
integrate two
10-bit DACs and
their
associated
circuits: an
enhanced unity
gain
operational
output
amplifier, a
10-bit volatile
data latch, a
10-bit
nonvolatile
data register
and the I2C
compatible
2-wire serial
interface.
The SMP9210 has
a Chip Select
input to
enable/disable
communication
with the
device, the
SMP9211 has a
Mute input to
turn the
outputs off and
the SMP9212 has
a reference
voltage
output.
Programming of
the
configuration,
control and
calibration
values by the
user is
simplified with
the interface
adapter and
Windows GUI
software
obtainable from
Summit
Microelectronics.
[continued
in the
PDF]
|
|
|
|
Note:
Pinouts for these three
drawings reflect the 14
pin SOIC
package.
|
|
|
Figure
2 - SMP9210 Functional
Block
Diagram
|
|
|
Figure
3- SMP9211 Functional
Block
Diagram
|
|
|
Figure
4 - SMP9212 Functional
Block
Diagram
|
|
|
|
|
|
|
|
SUMMIT Microelectronics,
Inc. reserves the right
to make changes to the
products contained in
this publication in
order to improve design,
performance or
reliability. SUMMIT
Microelectronics, Inc.
assumes no
responsibility for the
use of any circuits
described herein,
conveys no license under
any patent or other
right, and makes no
representation that the
circuits are free of
patent infringement.
Charts and schedules
contained herein reflect
representative operating
parameters, and may vary
depending upon a user's
specific application.
While the information in
this publication has
been carefully checked,
SUMMIT Microelectronics,
Inc. shall not be liable
for any damages arising
as a result of any error
or omission.
SUMMIT Microelectronics,
Inc. does not recommend
the use of any of its
products in life support
or aviation applications
where the failure or
malfunction of the
product can reasonably
be expected to cause any
failure of either system
or to significantly
affect their safety or
effectiveness. Products
are not authorized for
use in such applications
unless SUMMIT
Microelectronics, Inc.
receives written
assurances, to its
satisfaction, that: (a)
the risk of injury or
damage has been
minimized; (b) the user
assumes all such risks;
and (c) potential
liability of SUMMIT
Microelectronics, Inc.
is adequately protected
under the
circumstances.
Revision 3.6 - This
document supersedes all
previous versions.
Please check the Summit
Microelectronics Inc.
web site at
www.summitmicro.com
for data sheet
updates.
I2C is a trademark of
Philips
Corporation.
|
|
|
|
Copyright©1999- Summit
Microelectronics,
Inc.
|
|