Analog Devices AD5290 Evaluation Board EVAL-AD5290EBZ EVAL-AD5290EBZ データシート
製品コード
EVAL-AD5290EBZ
Compact +30 V / ±15 V 256-Position
Digital Potentiometer
Data Sheet
Rev. C
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FEATURES
256 position
10 kΩ, 50 kΩ, 100 kΩ
+20 V to +30 V single-supply operation
±10 V to ±15 V dual-supply operation
3-wire SPI®-compatible serial interface
Low temperature coefficient 35 ppm/°C typical
THD 0.006% typical
Midscale preset
Compact MSOP-10 package
Automotive temperature range: −40°C to +125°C
iCMOS™
10 kΩ, 50 kΩ, 100 kΩ
+20 V to +30 V single-supply operation
±10 V to ±15 V dual-supply operation
3-wire SPI®-compatible serial interface
Low temperature coefficient 35 ppm/°C typical
THD 0.006% typical
Midscale preset
Compact MSOP-10 package
Automotive temperature range: −40°C to +125°C
iCMOS™
process technology
APPLICATIONS
High voltage DAC
Programmable power supply
Programmable gain and offset adjustment
Programmable filters and delays
Actuator control
Audio volume control
Mechanical potentiometer replacement
Programmable power supply
Programmable gain and offset adjustment
Programmable filters and delays
Actuator control
Audio volume control
Mechanical potentiometer replacement
FUNCTIONAL BLOCK DIAGRAM
V
DD
A
W
B
V
SS
SDI
CLK
CS
SDO
DGND
POR
8
8
RS
8-BIT
LATCH
8-BIT
SERIAL
REGISTER
Q
D
CK
AD5290
04716-001
Figure 1.
GENERAL DESCRIPTION
is one of the few high voltage, high performance,
and compact digital potentiometers
in the market at present.
This device can be used as a programmable resistor or resistor
divider. The
divider. The
performs the same electronic adjustment
function as mechanical potentiometers, variable resistors, and
trimmers, with enhanced resolution, solid-state reliability, and
superior temperature stability.
trimmers, with enhanced resolution, solid-state reliability, and
superior temperature stability.
provides
layout flexibility and allows closed-loop dynamic controllability.
is available in MSOP-10 package and has 10 kΩ,
50 kΩ, and 100 kΩ options. All parts are guaranteed to operate
over the −40°C to +125°C extended automotive temperature range.
over the −40°C to +125°C extended automotive temperature range.
1
iCMOS™ Process Technology. For analog systems designers who need high performance ICs at higher voltage levels, iCMOS is a technology platform that enables the
development of analog ICs capable of 30 V and operating at ±15 V supplies while allowing dramatic reductions in power consumption and package size, and
increased ac and dc performance.
increased ac and dc performance.
2
The terms digital potentiometer and RDAC are used interchangeably.
3
The RDAC segmentation is protected by U.S. Patent Number 5,495,245.