AD5280/AD5282
Rev. C | Page 3 of
28
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
VDD = +15 V, VSS = 0 V or VDD = +5 V, VSS = 5 V; VLOGIC = 5 V, VA = +VDD, VB = 0 V; 40°C < TA < +85°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
Min
Max
Unit
DC CHARACTERISTICS–RHEOSTAT MODE
Resistor Differential
NL2R-DNL
RWB, VA = NC
1
±1/4
+1
LSB
R-INL
RWB, VA = NC
1
±1/4
+1
LSB
Nominal Resistor Toleranc
e3ΔRAB
TA = 25°C
30
+30
%
Resistance Temperature
Coefficient
(RAB/RAB)/T x 106
VAB = VDD, wiper = no connect
30
ppm/°C
Wiper Resistance
RW
IW = VDD/R, VDD = 3 V or 5 V
60
150
Ω
DC CHARACTERISTICS–POTENTIOMETER DIVIDER MODE (specifications apply to all VRs)
Resolution
N
8
Bits
INL
1
±1/4
+1
LSB
Differential Nonlinearit
y4DNL
1
±1/4
+1
LSB
Voltage Divider Temperature
Coefficient
(VW/VW)/T x 106
Code = 0x80
5
ppm/°C
Full-Scale Error
VWFSE
Code = 0xFF
2
1
0
LSB
Zero-Scale Error
VWZSE
Code = 0x00
0
+1
+2
LSB
RESISTOR TERMINALS
VA, VB, VW
VSS
VDD
V
CA, CB
f = 5 MHz, measured to GND,
Code = 0x80
25
pF
CW
f = 1 MHz, measured to GND,
Code = 0x80
55
pF
Common-Mode Leakage
ICM
VA = VB = VW
1
nA
Shutdown Current
ISHDN
5
μA
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
0.7 × VL
VL + 0.5
V
Input Logic Low
VIL
0
0.3 × VL
V
Output Logic High (O1, O2)
VIH
4.9
V
Output Logic Low (O1, O2)
VIL
0.4
V
Input Current
IIL
VIN = 0 V or 5 V
±1
μA
CIL
5
pF
POWER SUPPLIES
Logic Supply
VLOGIC
2.7
VDD
V
Power Single-Supply Range
VDD RANGE
VSS = 0 V
4.5
16.5
V
Power Dual-Supply Range
VDD/SS RANGE
±4.5
±5.5
V
Logic Supply Current
ILOGIC
VLOGIC = 5 V
60
μA
Positive Supply Current
IDD
VIH = 5 V or VIL = 0 V
0.1
1
μA
Negative Supply Current
ISS
0.1
1
μA
PDISS
VIH = 5 V or VIL = 0 V, VDD = +5 V, VSS = 5
V
0.2
0.3
mW
Power Supply Sensitivity
PSS
0.002
0.01
%/%
Bandwidth 3 dB
BW_20K
RAB = 20 kΩ, Code = 0x80
310
kHz
BW_50K
RAB = 50 kΩ, Code = 0x80
150
kHz
BW_200K
RAB = 200 kΩ, Code = 0x80
35
kHz