参数资料
型号: AD5251BRU10
厂商: ANALOG DEVICES INC
元件分类: 数字电位计
英文描述: 32-Tap. Nonvolatile. Linear-Taper Digital Potentiometers in SOT23
中文描述: DUAL 10K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO14
封装: MO-153AB-1, TSSOP-14
文件页数: 4/28页
文件大小: 859K
代理商: AD5251BRU10
AD5251/AD5252
Rev. 0 | Page 4 of 28
Parameter
Symbol
I
WP
Conditions
WP = V
DD
Min
Typ
1
Max
5
Unit
μA
Leakage Current
A0 Leakage Current
Input Leakage Current (Other
than WP and A0)
Input Capacitance
5
POWER SUPPLIES
Single-Supply Power Range
Dual-Supply Power Range
Positive Supply Current
Negative Supply Current
I
A0
I
I
A0 = GND
V
IN
= 0 V or V
DD
3
±1
μA
μA
C
I
V
DD
V
DD
/V
SS
I
DD
I
SS
V
SS
= 0 V
V
IH
= V
DD
or V
IL
= GND
V
IH
= V
DD
or V
IL
= GND, V
DD
= +2.5 V,
V
SS
= –2.5 V
V
IH
= V
DD
or V
IL
= GND
2.7
±2.25
5
5
–5
5.5
±2.75
15
–15
pF
V
V
μA
μA
EEMEM Data Storing Mode
Current
EEMEM Data Restoring Mode
Current
6
Power Dissipation
7
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS
5, 8
Bandwidth –3 dB
Total Harmonic Distortion
V
W
Settling Time
Resistor Noise Voltage
Digital Crosstalk
I
DD_STORE
35
mA
I
DD_RESTORE
V
IH
= V
DD
or V
IL
= GND
2.5
mA
P
DISS
PSS
BW
THD
t
S
e
N_WB
C
T
V
IH
= V
DD
= 5 V or V
IL
= GND
V
DD
= 5 V ± 10%
V
DD
= 3 V ± 10%
R
AB
= 1 k
V
A
= 1 V rms, V
B
= 0 V, f = 1 kHz
V
A
= V
DD
, V
B
= 0 V
R
WB
= 500 , f = 1 kHz (thermal noise only)
V
A
= V
DD
, V
B
= 0 V, measure V
W
with
adjacent RDAC making full-scale change
Signal input at A1 and measure the
output at W3, f = 1 kHz
0.025
–0.04
0.01
0.02
4
0.05
0.2
3
–80
0.075
0.025
0.04
mW
%/%
%/%
MHz
%
μs
nV/√Hz
dB
Analog Coupling
C
AT
–72
dB
1
Typical represents the average reading at 25°C and V
DD
= 5 V.
2
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 k
version at V
DD
= 2.7 V, I
W
= V
DD
/R for both V
DD
= 3 V or V
DD
= 5 V.
3
INL and DNL are measured at V
W
with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V
A
= V
DD
and V
B
= 0 V. DNL
specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
4
Resistor Terminals A, B, and W have no limitations on polarity with respect to each other.
5
Guaranteed by design and not subject to production test.
6
cmd 0 NOP should be activated after cmd 1 to minimize I
DD_READ
current consumption.
7
P
DISS
is calculated from I
DD
× V
DD
= 5 V.
8
All dynamic characteristics use V
DD
= 5 V.
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AD5251BRU10-RL7 32-Tap. Nonvolatile. Linear-Taper Digital Potentiometers in SOT23
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