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AD5252 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD5252
Description  Dual 64-and 256-Position I2C Nonvolatile Memory Digital Potentiometers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5252 Datasheet(HTML) 3 Page - Analog Devices

 
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AD5251/AD5252
Rev. 0 | Page 3 of 28
ELECTRICAL CHARACTERISTICS
1 kΩ Version. VDD = 3 V ± 10% or 5 V ± 10%; VSS = 0 V or VDD/VSS = ± 2.5 V ± 10%; VA = +VDD, VB = 0 V, –40°C < TA < +85°C, unless
otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS
RHEOSTAT MODE
Resolution
N
AD5251/AD5252
6/8
Bits
Resistor Differential
Nonlinearity2
R-DNL
RWB, RWA = NC, VDD = 5.5 V, AD5251
–0.5
±0.2
+0.5
LSB
RWB, RWA = NC, VDD = 5.5 V, AD5252
–1
±0.25
+1
LSB
RWB, RWA = NC, VDD = 2.7 V, AD5251
–0.75
±0.3
+0.75
LSB
RWB, RWA = NC, VDD = 2.7 V, AD5252
–1.5
±0.3
+1.5
LSB
Resistor Nonlinearity2
R-INL
RWB, RWA = NC, VDD = 5.5 V, AD5251
–0.5
±0.2
+0.5
LSB
RWB, RWA = NC, VDD = 5.5 V, AD5252
–2
±0.5
+2
LSB
RWB, RWA = NC, VDD = 2.7 V, AD5251
–1
+2.5
+4
LSB
RWB, RWA = NC, VDD = 2.7 V, AD5252
–2
+9
+14
LSB
Nominal Resistor Tolerance
∆RAB/RAB
TA = 25°C
–30
+30
%
Resistance Temperature
Coefficent
(∆RAB/RAB) × 106/∆T
650
ppm/°C
Wiper Resistance
RW
IW = 1 V/R, VDD = 5 V
75
130
IW = 1 V/R, VDD = 3 V
200
300
Channel Resistance Matching
∆RAB1/∆RAB3
0.15
%
DC CHARACTERISTIC
POTENTIOMETER DIVIDER MODE
Differential Nonlinearity3
DNL
AD5251
–0.5
±0.1
+0.5
LSB
AD5252
–1
±0.25
+1
LSB
Integral Nonlinearity3
INL
AD5251
–0.5
±0.2
+0.5
LSB
AD5252
–2
±0.5
+2
LSB
Voltage Divider Temperature
Coefficent
(∆VW/VW) × 106/∆T
Code = half scale
25
ppm/°C
Full-Scale Error
VWFSE
Code = full scale, VDD = 5.5 V, AD5251
–5
–3
0
LSB
Code = full scale, VDD = 5.5 V, AD5252
–16
–11
0
LSB
Code = full scale, VDD = 2.7 V, AD5251
−6
–4
0
LSB
Code = full scale, VDD = 2.7 V, AD5252
–23
–16
0
LSB
Zero-Scale Error
VWZSE
Code = zero scale, VDD = 5.5 V, AD5251
0
3
5
LSB
Code = zero scale, VDD = 5.5 V, AD5252
0
11
16
LSB
Code = zero scale, VDD = 2.7 V, AD5251
0
4
6
LSB
Code = zero scale, VDD = 2.7 V, AD5252
0
15
20
LSB
RESISTOR TERMINALS
Voltage Range4
VA, VB, VW
VSS
VDD
V
Capacitance5 Ax, Bx
CA, CB
f = 1 kHz, measured to GND,
Code = half scale
85
pF
Capacitance5 Wx
CW
f = 1 kHz, measured to GND,
Code = half scale
95
pF
Common-Mode Leakage
Current
ICM
VA = VB = VDD/2
0.01
1
µA
DIGITAL INPUTS and OUTPUTS
Input Logic High
VIH
VDD = 5 V, VSS = 0 V
2.4
V
VDD/VSS = 2.7 V/0 V or VDD/VSS = ± 2.5 V
2.1
V
Input Logic Low
VIL
VDD = 5V, VSS = 0 V
0.8
V
Output Logic High (SDA)
VOH
RPULL-UP = 2.2 kΩ to VDD = 5 V, VSS = 0 V
4.9
V
Output Logic Low (SDA)
VOL
RPULL-UP = 2.2 kΩ to VDD =5 V, VSS = 0 V
0.4
V


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