Datasheet

AD5260/AD5262
Rev. A | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—20 kΩ, 50 kΩ, 200 kΩ VERSIONS
V
DD
= +15 V, V
SS
= 0 V, or V
DD
= +5 V, V
SS
= –5 V; V
L
= +5 V; V
A
= +5 V, V
B
= 0 V, −40°C < T
A
< +85°C, unless otherwise noted.
The AD5260/AD5262 contain 1968 transistors. Die size: 89 mil × 105 mil (9345 sq mil).
Table 1.
Parameter Symbol Conditions Min Typ
1
Max Unit
DC CHARACTERISTICS RHEOSTAT MODE Specifications apply to all VRs
Resistor Differential Nonlinearity
2
R-DNL R
WB
, V
A
= no connect −1 ±¼ +1 LSB
Resistor Nonlinearity
2
R-INL R
WB
, V
A
= no connect −1 ±½ +1 LSB
Nominal Resistor Tolerance
3
ΔR
AB
T
A
= 25°C −30 30 %
Resistance Temperature Coefficient ΔR
AB
/ΔT Wiper = no connect 35 ppm/°C
Wiper Resistance R
W
I
W
= 1 V/R
AB
60 150 Ω
Channel Resistance Matching (AD5262 only) ΔR
WB
/R
WB
Channel 1 and Channel 2 R
WB
,
D
X
= 0x80
0.1 %
Resistance Drift ΔR
AB
0.05 %
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE Specifications apply to all VRs
Resolution N 8 Bits
Differential Nonlinearity
4
DNL −1 ±1/4 +1 LSB
Integral Nonlinearity
4
INL −1 ±1/2 +1 LSB
Voltage Divider Temperature Coefficient ΔV
W
/ΔT Code = half scale 5 ppm/°C
Full-Scale Error W
FSE
Code = full scale −2 −1 +0 LSB
Zero-Scale Error V
WZSE
Code = zero scale 0 1 2 LSB
RESISTOR TERMINALS
Voltage Range
5
V
A, B, W
V
SS
V
DD
V
Ax and Bx Capacitance
6
C
A,B
f = 5 MHz, measured to GND,
code = half scale
25 pF
Wx Capacitance
6
C
W
f = 1 MHz, measured to GND,
code = half scale
55 pF
Common-Mode Leakage Current I
CM
V
A
= V
B
= V
DD
/2 1 nA
Shutdown Current
7
I
SHDN
5 μA
DIGITAL INPUTS and OUTPUTS
Input Logic High V
IH
2.4 V
Input Logic Low V
IL
0.8 V
Input Logic High V
IH
V
L
= 3 V, V
SS
= 0 V 2.1 V
Input Logic Low V
IL
V
L
= 3 V, V
SS
= 0 V 0.6 V
Output Logic High (SDO) V
OH
R
PULL-UP
= 2 kΩ to 5 V 4.9 V
Output Logic Low (SDO) V
OL
I
OL
= 1.6 mA, V
LOGIC
= 5 V 0.4 V
Input Current
8
I
IL
V
IN
= 0 V or 5 V ±1 μA
Input Capacitance
6
C
IL
5 pF
POWER SUPPLIES
Logic Supply V
L
2.7 5.5 V
Power Single-Supply Range V
DD RANGE
V
SS
= 0 V 4.5 16.5 V
Power Dual-Supply Range V
DD/SS RANGE
±4.5 ±5.5 V
Logic Supply Current I
L
V
L
= 5 V 60 μA
Positive Supply Current I
DD
V
IH
= 5 V or V
IL
= 0 V 1 μA
Negative Supply Current I
SS
V
SS
= −5 V 1 μA
Power Dissipation
9
P
DISS
V
IH
= 5 V or V
IL
= 0 V,
V
DD
= +5 V, V
SS
= –5 V
0.3 mW
Power Supply Sensitivity PSS ΔV
DD
= +5 V, ±10% 0.003 0.01 %/%