Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Initial Resistor Ratio Error (Note 2)
SYMBOL
CONDITIONS
MAX5491_A, T
A
= +25°C
MAX5491_B, T
A
= +25°C
MAX5491_C, T
A
= +25°C
Resistance-Ratio Temperature
Coefficient (Note 3)
Absolute Temperature Coefficient
of Resistance
Voltage Coefficient of Resistance
End-to-End Resistance (R
1
+ R
2
)
Continuous Current
Continuous Working Voltage
Between P1 and P2
Power Rating
Pin Capacitance
Resistance Ratio Long-Term
Stability
2000hr at +70°C
2
±0.03
V
P1-P2
I
R1
, I
R2
0
TCR
VCR
1:1
≤
ratio
≤
3.2:1
3.2:1 < ratio
≤
10:1
10:1 < ratio
≤
30:1
(Note 4)
(Note 5)
28.5
2
4
5.5
35
0.1
30
31.5
±1.75
50
87.5
ppm/°C
ppm/V
kΩ
mA
V
mW
pF
%
ppm/°C
MIN
TYP
MAX
±0.035
±0.05
±0.1
%
UNITS
Note 1:
The MAX5491 is 100% production tested at T
A
= +25°C. Specifications over -40°C to +85°C are guaranteed by design.
Note 2:
Testing conditions: T
A
= +25°C, V
P1-P2
= 9V and 50V.
Note 3:
Resistance-ratio temperature coefficient is defined as
⎛
R
⎞
∆⎜
1
⎟
⎝
R
2
⎠
R
1
× ∆
T
R
2
Note 4:
Absolute TCR is defined as
and is tested at 9V and 50V.
(
R
1
+
∆
(
R
1
+
R
2
)
R
2
)
× ∆
T
⎛
R
⎞
∆⎜
1
⎟
⎝
R
2
⎠
R
1
× ∆
V
R
2
Note 5:
Resistance-ratio voltage coefficient is defined as
Chapter1.CycloneIIIDevice Family Overview
Chapter2.Logic Elements and Logic Array Blocks in the CycloneIII Device Family
Chapter3.Memory Blocks in the CycloneIII Device Family
C ......
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