Data Sheet
AD5270/AD5271
Rev. F | Page 5 of 24
ELECTRICAL CHARACTERISTICS—AD5271
VDD = 2.7 V to 5.5 V, VSS = 0 V; VDD = 2.5 V to 2.75 V, VSS = 2.5 V to 2.75 V; 40°C < TA < +125°C, unless otherwise noted.
Table 4.
Parameter
Symbol
Test Conditions/Comments
Min
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution
8
Bits
Resistor Integral Nonlinearit
y2, 3R-INL
1
+1
LSB
Resistor Differential Nonlinearit
y2R-DNL
1
+1
LSB
Nominal Resistor Tolerance
1
±0.5
+1
%
Normal Mode
±15
%
Resistance Temperature Coefficient
5, 6Code = full scale
5
ppm/°C
Wiper Resistance
Code = zero scale
35
70
RESISTOR TERMINALS
Terminal Voltage Rang
e5, 7VSS
VDD
V
f = 1 MHz, measured to GND, code =
half scale
90
pF
f = 1 MHz, measured to GND, code =
half scale
40
pF
Common-Mode Leakage Curren
t5VA = VW
50
nA
DIGITAL INPUTS
High
VINH
2.0
V
VINL
0.8
V
Input Current
IIN
±1
A
CIN
5
pF
DIGITAL OUTPUT
High
VOH
RPULL_UP = 2.2 k to VDD
VDD 0.1
V
Low
VOL
RPULL_UP = 2.2 k to VDD
VDD = 2.7 V to 5.5 V, VSS = 0 V
0.4
V
VDD = 2.5 V to 2.75 V, VSS = 2.5 V to 2.75 V
0.6
V
Tristate Leakage Current
1
+1
A
5
pF
POWER SUPPLIES
Single-Supply Power Range
VSS = 0 V
2.7
5.5
V
Dual-Supply Power Range
±2.5
±2.75
V
Supply Current
Positive
IDD
1
A
Negative
ISS
1
A
Positive
IDD_OTP_STORE
4
mA
Negative
ISS_OTP_STORE
4
mA
Positive
IDD_OTP_READ
500
A
Negative
ISS_OTP_READ
500
A
VIH = VDD or VIL = GND
5.5
W
Power Supply Rejection Rat
io5PSRR
ΔVDD/ΔVSS = ±5 V ± 10%
dB
RAW = 20 k
66
55
RAW = 50 k
75
67
RAW = 100 k
78
70