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Analog Devices Semiconductor Electronic Components Datasheet

AD5290 Datasheet

Compact 30V/+-15V 256-Position Digital Potentiometer

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AD5290 pdf
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Preliminary Technical Data
Compact +30V/±15V 256-Position Digital
Potentiometer
AD5290
FEATURES
256-position
+2.7V to +30V Single Supply Operation
±2.7V to ±15V Dual Supply Operation
End-to-end resistance 10 kΩ, 50 kΩ, 100 kΩ
Low temperature coefficient 35 ppm/°C
Power-on preset to midscale
SPI compatible interface
Automotive temperature range –40°C to +105°C
Compact MSOP-10 (3 mm × 4.9 mm) package
APPLICATIONS
Programmable Gain and Offset
Programmable Power Supply
Industrial Actuator Control
LED Array Driver
Audio Volume Control
General Purpose DAC Replacement
Mechanical Potentiometer Replacement
GENERAL OVERVIEW
The AD5290 is a low cost, compact 2.9 mm × 3 mm
+30V/±15V, 256-position digital potentiometer. This device
performs the same electronic adjustment function as
mechanical potentiometers or variable resistors, with enhanced
resolution, solid-state reliability, and superior low temperature
coefficient performance.
The wiper settings are controllable through an SPI compatible
digital interface. The resistance between the wiper and either
end point of the fixed resistor varies linearly with respect to the
digital code transferred into the RDAC latch.
The AD5290 is available in 10k, 50k, and 100kin compact
MSOP-10 package. AD5290 can be operated from a single
supply +2.7 V to +30 V or dual supply ±2.7 V to ±15 V. All
parts are guaranteed to operate over the automotive
temperature range of -40°C to +105°C.
SDO
SDI
CLK
CS
FUNCTIONAL BLOCK DIAGRAM
AD5290
Q
8-Bit
8 8-Bit
SERIAL
LATCH
REG
8
D
CK
RS
POR
VDD
A
W
B
VSS
Figure 1.
DG ND
Note:
The terms digital potentiometer and RDAC are used interchangeably.
Rev. PrC
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.


Analog Devices Semiconductor Electronic Components Datasheet

AD5290 Datasheet

Compact 30V/+-15V 256-Position Digital Potentiometer

No Preview Available !

AD5290 pdf
wwPwre.DlaimtaSinhaeerty4UT.ecocmhnical Data
AD5290
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
(VDD/VSS = ±15V±10% or ±5V±10%, VA = +VDD, VB = VSS/0V, -40°C < TA < +105°C unless otherwise noted)
Table 1.
Parameter
Symbol
Conditions
Min
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity2
Resistor Integral Nonlinearity2
Nominal Resistor Tolerance3
Resistance Temperature Coefficient
Wiper Resistance
R-DNL
R-INL
∆RAB
(∆RAB/RAB)/∆T*106
RW
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE
Resolution
N
Differential Nonlinearity4
DNL
Integral Nonlinearity4
INL
Voltage Divider Temperature Coefficient
(∆VW/VW)/∆T*106
Full-Scale Error
VWFSE
Zero-Scale Error
VWZSE
RESISTOR TERMINALS
Voltage Range5
VA,B,W
Capacitance6 A, B
CA,B
Capacitance6 W
CW
Common-Mode Leakage
DIGITAL INPUTS AND OUTPUTS
Input Logic High
Input Logic Low
Output Logic High
Output Logic Low
ICM
VIH
VIL
VOH
VOL
Input Current
Input Capacitance
POWER SUPPLIES
Power Supply Range
Power Supply Range
Supply Current6
Supply Current
Supply Current
Power Dissipation7
Power Supply Sensitivity
II
CI
VDD/VSS
VDD
IDD
IDD
ISS
PDISS
PSS
DYNAMIC CHARACTERISTICS6, 8
Bandwidth –3dB
BW
RWB, VA = no connect
RWB, VA = no connect
TA = 25°C
VAB = VDD,
Wiper = no connect
VDD = 30 V
VDD = 5 V
Code = 0x80
Code = 0xFF
Code = 0x00
f = 1 MHz, measured to
GND, Code = 0x80
f = 1 MHz, measured to
GND, Code = 0x80
VA = VB = VW
VDD = +5V or +15V
VDD = +5V or +15V
RL = 2.2 kto +5 V
IOL = 1.6mA, VLOGIC = +5V,
VDD = +15V
VIN = 0 V or +15 V
Dual Supply Range
Single Supply Range, VSS =
0V
VIH = 5 V or VIL = 0 V, VDD =
+5 V
VIH = 5 V or VIL = 0 V, VDD =
+15 V
VIH = 5 V or VIL = 0 V, VSS = -
5 V or –15 V
VIH = 5 V or VIL = 0 V, VDD =
+15 V, VSS = -15 V
VDD = +15V ±10%, or
VSS = -15V ±10%, Code =
Midscale
RAB = 10 kΩ/50 kΩ/100 kΩ,
Code = 0x80
–1
–2
–30
–1
–1
–3
0
VSS
2.4
4.9
±2.7
+2.7
Typ1
±0.1
±0.25
35
50
200
±0.1
±0.3
5
–1
1
45
60
1
5
0.1
0.75
0.02
11
±0.01
525/125/60
Max
+1
+2
+30
120
400
8
+1
+1
0
3
VDD
0.8
0.4
±1
±16.5
+30
10
2
0.1
30
±0.02
Unit
LSB
LSB
%
ppm/°C
Bits
LSB
LSB
ppm/°C
LSB
LSB
V
pF
pF
nA
V
V
V
V
µA
pF
V
V
µA
mA
mA
mW
%/%
kHz
Rev. Pr C | Page 2 of 11


Part Number AD5290
Description Compact 30V/+-15V 256-Position Digital Potentiometer
Maker Analog Devices
Total Page 11 Pages
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