AD5251 Analog Devices, AD5251 Datasheet - Page 4

• Manufacturer Part Number: AD5251
• Description: (AD5251 / AD5252) Dual 64-and 256-Position I2C Nonvolatile Memory Digital Potentiometers
• Manufacturer: Analog Devices

AD5251/AD5252
POWER SUPPLIES
DYNAMIC CHARACTERISTICS
1
2
3
4
5
6
7
8
Typical represents the average reading at 25°C and V
Resistor position nonlinearity error (R-INL) is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper
positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic, except R-DNL of AD5252 1 kΩ
version at V
INL and DNL are measured at V
specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
Resistor Terminals A, B, and W have no limitations on polarity with respect to each other.
Guaranteed by design and not subject to production test.
cmd 0 NOP should be activated after cmd 1 to minimize I
P
All dynamic characteristics use V
DISS
Parameter
A0 Leakage Current
Input Leakage Current (Other
Single-Supply Power Range
Dual-Supply Power Range
Positive Supply Current
Negative Supply Current
EEMEM Data Storing Mode
EEMEM Data Restoring Mode
Current
Power Dissipation
Power Supply Sensitivity
Bandwidth –3 dB
Total Harmonic Distortion
V
Resistor Noise Voltage
Digital Crosstalk
Analog Coupling
than WP and A0)
Current
W
Leakage Current
is calculated from I
Input Capacitance
Settling Time
6
DD
= 2.7 V, I
W
7
DD
= V
× V
5
DD
DD
/R for both V
W
= 5 V.
DD
with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V
5, 8
= 5 V.
DD
Symbol
I
I
I
C
V
V
I
I
I
I
P
PSS
BW
THD
t
e
C
C
WP
A0
I
DD
SS
DD_STORE
DD_RESTORE
S
N_WB
DD
DD
DISS
I
T
AT
= 3 V or V
/V
SS
DD
DD
= 5 V.
= 5 V.
DD_READ
current consumption.
Conditions
WP = V
A0 = GND
V
V
V
V
V
V
V
V
∆V
∆V
R
V
V
R
V
adjacent RDAC making full-scale change
Signal input at A1 and measure the
output at W3, f = 1 kHz
AB
WB
IN
SS
IH
IH
SS
IH
IH
IH
A
A
A
= 1 V rms, V
= V
= V
DD
DD
= 0 V or V
= V
= V
= V
= V
= V
= 0 V
= –2.5 V
= 1 kΩ
Rev. 0 | Page 4 of 28
= 500 Ω, f = 1 kHz (thermal noise only)
= 5 V ± 10%
= 3 V ± 10%
DD
DD
DD
DD
DD
DD
DD
DD
, V
, V
or V
or V
or V
or V
= 5 V or V
B
B
= 0 V
= 0 V, measure V
DD
IL
IL
IL
IL
= GND
= GND, V
= GND
= GND
B
= 0 V, f = 1 kHz
IL
= GND
DD
= +2.5 V,
W
with
Min
2.7
±2.25
−0.025
–0.04
A
= V
DD
Typ
5
5
–5
35
2.5
0.01
0.02
4
0.05
0.2
3
–80
–72
and V
1
B
= 0 V. DNL
Max
5
3
±1
5.5
±2.75
15
–15
0.075
0.025
0.04
Unit
µA
µA
µA
pF
V
V
µA
µA
mA
mA
mW
%/%
%/%
MHz
%
µs
nV/√Hz
dB
dB