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AD5122 Datasheet(PDF) 7 Page - Analog Devices

Part No. AD5122
Description  Dual Channel, 128-/256-Position, SPI, Nonvolatile Digital Potentiometer
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5122 Datasheet(HTML) 7 Page - Analog Devices

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Data Sheet
AD5122/AD5142
Rev. C | Page 7 of 32
Parameter
Symbol
Test Conditions/Comments
Min
Typ1
Max
Unit
RESISTOR TERMINALS
Maximum Continuous Current
I
A, IB, and IW
R
AB = 10 kΩ
−6
+6
mA
R
AB = 100 kΩ
−1.5
+1.5
mA
Terminal Voltage Range5
V
SS
V
DD
V
Capacitance A, Capacitance B3
C
A, CB
f = 1 MHz, measured to GND,
code = half scale
R
AB = 10 kΩ
25
pF
R
AB = 100 kΩ
12
pF
Capacitance W3
C
W
f = 1 MHz, measured to GND,
code = half scale
R
AB = 10 kΩ
12
pF
R
AB = 100 kΩ
5
pF
Common-Mode Leakage Current3
V
A = VW = VB
−500
±15
+500
nA
DIGITAL INPUTS
Input Logic3
High
V
INH
V
LOGIC = 1.8 V to 2.3 V
0.8 × V
LOGIC
V
V
LOGIC = 2.3 V to 5.5 V
0.7 × V
LOGIC
V
Low
V
INL
0.2 × V
LOGIC
V
Input Hysteresis3
V
HYST
0.1 × V
LOGIC
V
Input Current3
I
IN
±1
µA
Input Capacitance3
C
IN
5
pF
DIGITAL OUTPUTS
Output High Voltage3
V
OH
R
PULL-UP = 2.2 kΩ to VLOGIC
V
LOGIC
V
Output Low Voltage3
V
OL
I
SINK = 3 mA
0.4
V
I
SINK = 6 mA, VLOGIC > 2.3 V
0.6
V
Three-State Leakage Current
−1
+1
µA
Three-State Output Capacitance
2
pF
POWER SUPPLIES
Single-Supply Power Range
V
SS = GND
2.3
5.5
V
Dual-Supply Power Range
±2.25
±2.75
V
Logic Supply Range
Single supply, V
SS = GND
1.8
V
DD
V
Dual supply, V
SS < GND
2.25
V
DD
V
Positive Supply Current
I
DD
V
IH = VLOGIC or VIL = GND
V
DD = 5.5 V
0.7
5.5
µA
V
DD = 2.3 V
400
nA
Negative Supply Current
I
SS
V
IH = VLOGIC or VIL = GND
−5.5
−0.7
µA
EEPROM Store Current3, 6
I
DD_EEPROM_STORE
V
IH = VLOGIC or VIL = GND
2
mA
EEPROM Read Current3, 7
I
DD_EEPROM_READ
V
IH = VLOGIC or VIL = GND
320
µA
Logic Supply Current
I
LOGIC
V
IH = VLOGIC or VIL = GND
0.05
1.4
µA
Power Dissipation8
P
DISS
V
IH = VLOGIC or VIL = GND
3.5
µW
Power Supply Rejection Ratio
PSRR
∆V
DD/∆VSS = VDD ± 10%,
code = full scale
−66
−60
dB


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