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AD5112 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD5112
Description  Single-Channel, 128-/64-/32-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD5112 Datasheet(HTML) 5 Page - Analog Devices

 
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Data Sheet
AD5110/AD5112/AD5114
Rev. 0 | Page 5 of 28
ELECTRICAL CHARACTERISTICS—AD5112
5 kΩ, 10 kΩ, and 80 kΩ versions: VDD = 2.3 V to 5.5 V, VLOGIC = 1.8 V to VDD, VA = VDD, VB = 0 V, −40°C < TA < +125°C, unless otherwise noted.
Table 3.
Parameter
Symbol
Test Conditions/Comments
Min
Typ1
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution
N
6
Bits
Resistor Integral Nonlinearity2
R-INL
RAB = 5 kΩ, VDD = 2.3 V to 2.7 V
−2.5
±0.5
+2.5
LSB
RAB = 5 kΩ, VDD = 2.7 V to 5.5 V
−1
±0.25
+1
LSB
RAB = 10 kΩ
−1
±0.25
+1
LSB
RAB = 80 kΩ
−0.25
±0.1
+0.25
LSB
Resistor Differential Nonlinearity2
R-DNL
+1
±0.25
+1
LSB
Nominal Resistor Tolerance
ΔRAB/RAB
−8
+8
%
Resistance Temperature Coefficient3
(ΔRAB/RAB)/ΔT × 106
Code = full scale
35
ppm/°C
Wiper Resistance
RW
Code = zero scale
70
140
Ω
RBS
Code = bottom scale
45
80
Ω
RTS
Code = top scale
70
140
Ω
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
Integral Nonlinearity4
INL
−0.5
±0.15
+0.5
LSB
Differential Nonlinearity4
DNL
−0.5
±0.15
+0.5
LSB
Full-Scale Error
VWFSE
RAB = 5 kΩ
−2.5
LSB
RAB =10 kΩ
−1.5
LSB
RAB = 80 kΩ
−1
LSB
Zero-Scale Error
VWZSE
RAB = 5 kΩ
1.5
LSB
RAB =10 kΩ
1
LSB
RAB = 80 kΩ
0.25
LSB
Voltage Divider Temperature Coefficient3
(ΔVW/VW)/ΔT × 106
Code = half scale
±10
ppm/°C
RESISTOR TERMINALS
Maximum Continuous IA, IB, and IW
Current3
RAB = 5 kΩ, 10 kΩ
−6
+6
mA
RAB = 80 kΩ
−1.5
+1.5
mA
Terminal Voltage Range5
GND
VDD
V
Capacitance A, Capacitance B3
CA, CB
f = 1 MHz, measured to GND,
code = half scale, VW = VA =
2.5 V or VW = VB = 2.5 V
20
pF
Capacitance W3
CW
f = 1 MHz, measured to GND,
code = half scale,
VA = VB = 2.5 V
35
pF
Common-Mode Leakage Current3
VA = VW = VB
−500
±15
+500
nA
DIGITAL INPUTS
Input Logic3
High
VINH
VLOGIC = 1.8 V to 2.3 V
0.8 × VLOGIC
V
VLOGIC = 2.3 V to 5.5 V
0.7 × VLOGIC
V
Low
VINL
VLOGIC = 1.8 V to 2.3 V
0.2 × VLOGIC
V
VLOGIC = 2.3 V to 5.5 V
0.3 × VLOGIC
V
Input Hysteresis3
VHYST
0.1 × VLOGIC
V
Input Current3
IN
±1
μA
Input Capacitance3
CIN
5
pF
DIGITAL OUTPUT (SDA)
Output Low Voltage3
VOL
ISINK = 3 mA
0.2
V
ISINK = 6 mA
0.4
V
Three-State Leakage Current
−1
+1
μA
Three-State Output Capacitance3
2
pF


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