Datasheet

AD5174
Rev. B | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
DD
= 2.7 V to 5.5 V, V
SS
= 0 V; V
DD
= 2.5 V to 2.75 V, V
SS
= −2.5 V to −2.75 V; −40°C < T
A
< 125°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ
1
Max Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution 10 Bits
Resistor Integral Nonlinearity
2, 3
R-INL |V
DD
− V
SS
| = 3.6 V to 5.5 V −1 +1 LSB
|V
DD
− V
SS
| = 3.3 V to 3.6 V −1 +1.5 LSB
|V
DD
− V
SS
| = 2.7 V to 3.3 V −2.5 +2.5 LSB
Resistor Differential Nonlinearity
2
R-DNL −1 +1 LSB
Nominal Resistor Tolerance ±15 %
Resistance Temperature Coefficient
4, 5
Code = full scale 35 ppm/°C
Wiper Resistance Code = zero scale 35 70 Ω
RESISTOR TERMINALS
Terminal Voltage Range
4, 6
V
TERM
V
SS
V
DD
V
Capacitance A
4
f = 1 MHz, measured to GND, code = half scale 90 pF
Capacitance W
4
f = 1 MHz, measured to GND, code = half scale 40 pF
Common-Mode Leakage Current
4
V
A
= V
W
50 nA
DIGITAL INPUTS
Input Logic
4
High V
INH
2.0 V
Low V
INL
0.8 V
Input Current I
IN
±1 μA
Input Capacitance
4
C
IN
5 pF
DIGITAL OUTPUT
Output Voltage
4
High V
OH
R
PULL_UP
= 2.2 kΩ to V
DD
V
DD
− 0.1 V
Low V
OL
R
PULL_UP
= 2.2 kΩ to V
DD
V
DD
= 2.7 V to 5.5 V, V
SS
= 0 V 0.4 V
V
DD
= 2.5 V to 2.75 V, V
SS
= −2.5 V to −2.75 V 0.6 V
Tristate Leakage Current −1 +1 μA
Output Capacitance
4
5 pF
POWER SUPPLIES
Single-Supply Power Range V
SS
= 0 V 2.7 5.5 V
Dual-Supply Power Range ±2.5 ±2.75 V
Supply Current
Positive I
DD
1 μA
Negative I
SS
−1 μA
50-TP Store Current
4, 7
Positive I
DD_OTP_STORE
4 mA
Negative I
SS_OTP_STORE
−4 mA
50-TP Read Current
4, 8
Positive I
DD_OTP_READ
500 μA
Negative I
SS_OTP_READ
−500 μA
Power Dissipation
9
P
DISS
V
IH
= V
DD
or V
IL
= GND 5.5 μW
Power Supply Rejection Ratio
4
PSRR ΔV
DD
/ΔV
SS
= ±5 V ± 10% −50 −55 dB