Datasheet

AD5291/AD5292
Rev. D | Page 6 of 32
ELECTRICAL CHARACTERISTICS—AD5292
V
DD
= 21 V to 33 V, V
SS
= 0 V; V
DD
= 10.5 V to 16.5 V, V
SS
= −10.5 V to −16.5 V; V
LOGIC
= 2.7 V to 5.5 V, V
A
= V
DD
, V
B
= V
SS
,
−40°C < T
A
< +105°C, unless otherwise noted.
Table 4.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution N 10 Bits
Resistor Differential Nonlinearity
2
R-DNL R
WB
, V
A
= NC −1 +1 LSB
Resistor Integral Nonlinearity
2
R-INL R
AB
=50 kΩ, 100 kΩ −2 +2 LSB
R-INL R
AB
=20 kΩ , |V
DD
− V
SS
| = 26 V to 33 V −2 +2 LSB
R-INL R
AB
=20 kΩ , |V
DD
− V
SS
| = 21 V to 26 V −3 +3 LSB
Nominal Resistor Tolerance (R-Perf Mode)
3
∆R
AB
/R
AB
See
Table 5 and Table 6
−1 ±0.5 +1 %
Nominal Resistor Tolerance (Normal
Mode)
4
∆R
AB
/R
AB
±7 %
Resistance Temperature Coefficient (∆R
AB
/R
AB
)/∆T × 10
6
Code = full scale; See
Figure 38
35 ppm/°C
Wiper Resistance R
W
Code= zero scale 60 100 Ω
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
Resolution N 10 Bits
Differential Nonlinearity
5
DNL −1 +1 LSB
Integral Nonlinearity
5
INL −1.5 +1.5 LSB
Voltage Divider Temperature Coefficient
4
(∆V
W
/V
W
)/∆T × 10
6
Code = half scale; See
Figure 41
5 ppm/°C
Full-Scale Error V
WFSE
Code = full scale −8 +1 LSB
Zero-Scale Error V
WZSE
Code = zero scale 0 8 LSB
RESISTOR TERMINALS
Terminal Voltage Range
4
V
A
, V
B
, V
W
V
SS
V
DD
V
Capacitance A, Capacitance B
6
C
A
, C
B
f = 1 MHz, measured to GND,
code = half scale
85 pF
Capacitance W
5
C
W
f = 1 MHz, measured to GND,
code = half scale
65 pF
Common-Mode Leakage Current
4
I
CM
V
A
= V
B
= V
W
±1 nA
DIGITAL INPUTS JEDEC compliant
Input Logic High
4
V
IH
V
LOGIC
= 2.7 V to 5.5 V 2.0 V
Input Logic Low
4
V
IL
V
LOGIC
= 2.7 V to 5.5 V 0.8 V
Input Current I
IL
V
IN
= 0 V or V
LOGIC
±1 μA
Input Capacitance
4
C
IL
5 pF
DIGITAL OUTPUTS (SDO and RDY)
Output High Voltage
4
V
OH
R
PULL_UP
= 2.2 kΩ to V
LOGIC
V
LOGIC
− 0.4 V
Output Low Voltage
4
V
OL
R
PULL_UP
= 2.2 kΩ to V
LOGIC
GND + 0.4 V
Three-State Leakage Current −1 +1 μA
Output Capacitance
4
C
OL
5 pF
POWER SUPPLIES
Single-Supply Power Range V
DD
V
SS
= 0 V 9 33 V
Dual-Supply Power Range V
DD
/V
SS
±9 ±16.5 V
Positive Supply Current I
DD
V
DD
/V
SS
= ±16.5 V 0.1 2 μA
Negative Supply Current I
SS
V
DD
/V
SS
= ±16.5 V −2 −0.1 μA
Logic Supply Range V
LOGIC
2.7 5.5 V
Logic Supply Current I
LOGIC
V
LOGIC
= 5 V; V
IH
= 5 V or V
IL
= GND 1 10 μA
OTP Store Current
6, 7
I
LOGIC_PROG
V
IH
= 5 V or V
IL
= GND 25 mA
OTP Read Current
6, 8
I
LOGIC_FUSE_READ
V
IH
= 5 V or V
IL
= GND 25 mA
Power Dissipation
9
P
DISS
V
IH
= 5 V or V
IL
= GND 8 110 μW
Power Supply Rejection Ratio
6
PSSR ∆V
DD
/∆V
SS
= ±15 V ± 10% %/%
R
AB
= 20 kΩ 0.103
R
AB
= 50 kΩ 0.039
R
AB
= 100 kΩ 0.021