AD5251 Analog Devices, AD5251 Datasheet - Page 6

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

AD5251/AD5252
Parameter
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.
cmd 0 NOP should be activated after cmd 1 to minimize I
P
All dynamic characteristics use V
Guaranteed by design and not subject to production test.
DISS
Dual-Supply Power Range
Positive Supply Current
Negative Supply Current
EEMEM Data Storing Mode
EEMEM Data Restoring Mode
Power Dissipation
Power Supply Sensitivity
–3 dB Bandwidth
Total Harmonic Distortion
V
Resistor Noise Voltage
Digital Crosstalk
Analog Coupling
Current
Current
W
is calculated from I
Settling Time
6
DD
= 2.7 V, I
W
7
DD
= V
× V
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.
Symbol
V
I
I
I
I
P
PSS
BW
THD
t
e
C
C
DD
SS
DD_STORE
DD_RESTORE
S
DD
N_WB
DD
DISS
T
AT
= 3 V or V
/V
W
SS
DD
DD
= 5 V.
= 5 V.
DD_READ
current consumption.
Conditions
V
V
= -2.5 V
V
V
V
∆V
∆V
R
V
V
kΩ/100 kΩ
10 kΩ/50 kΩ/100 kΩ, code = midscale,
f = 1 kHz (thermal noise only)
V
adjacent RDAC making full scale
change
Signal input at A1 and measure output
at W3, f = 1kHz
AB
IH
IH
IH
IH
IH
A
A
A
DD
DD
= 1 Vrms, V
= V
= V
= V
= V
= V
= V
= V
= 10 kΩ/50 kΩ/100 kΩ
Rev. 0 | Page 6 of 28
= 5 V ±10%
= 3 V ±10%
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, R
= 0 V, Measure V
IL
IL
IL
IL
B
= GND
= GND, V
= GND, T
= GND, T
= 0 V, f = 1 kHz
IL
AB
= GND
= 10 kΩ/50
A
A
DD
= 0°C to 85°C
= 0°C to 85°C
= +2.5 V, V
W
with
SS
Min
±2.25
−0.005
−0.01
Typ
5
−5
35
2.5
+0.002
+0.002
400/80/40
0.05
1.5/7/14
9/20/29
-80
-72
A
= V
1
DD
and V
B
= 0 V. DNL
Max
±2.75
15
−15
0.075
+0.005
+0.01
Unit
V
µA
µA
mA
mA
mW
%/%
%/%
kHz
%
µs
nV/√Hz
dB
dB