Rainbow Electronics LM81 - Manual (Page 5)

Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Positive Supply Voltage (V + ) +6.0V
Voltage on Any Input or Output Pin:
+12Vin, T_CRIT_A −0.3V to +15V
A0, A1, DACOut −0.3V to (V + + 0.3V)
+2.5Vin, +3.3Vin (Note 3)
All other pins −0.3V to +6V
Input Current at any Pin (Note 4) ± 5 mA
Package Input Current (Note 4) ± 20 mA
Maximum Junction Temperature
(T
J
max) 150˚C
ESD Susceptibility (Note 6)
Human Body Model 2000V
Machine Model 200V
Soldering Information
MTC Package (Note 7) :
Vapor Phase (60 seconds) 215˚C
Infrared (15 seconds) 235˚C
Storage Temperature −65˚C to +150˚C
Operating Ratings
(Notes 1, 2)
Operating Temperature Range T
MIN
≤
T
A
≤
T
MAX
LM81 −40˚C
≤
T
A
≤
+125˚C
Specified Temperature Range T
MIN
≤
T
A
≤
T
MAX
LM81 −40˚C
≤
T
A
≤
+125˚C
Junction to Ambient Thermal Resistance (
θ
JA
(Note 5))
NS Package Number: MTC24B 95˚C/W
Supply Voltage (V + ) +2.8V to +3.8V
V
IN
Voltage Range:
+12Vin −0.05V to +15V
+5Vin −0.05V to +6.8V
+3.3Vin −0.05V to +4.6V
+2.5Vin −0.05V to +3.6V
VID0 - VID4, Vccp, FAN1-FAN2 −0.05V to +6.0V
All other inputs −0.05V to (V + + 0.05V)
DC Electrical Characteristics
The following specifications apply for +2.8V
DC
≤
V + ≤
+3.8V
DC
, R
S
= 500
Ω
, unless otherwise specified. Boldface limits apply
for T
A
= T
J
= T
MIN
to T
MAX
; all other limits T
A
= T
J
= 25˚C. (Note 8)
Symbol Parameter Conditions
Typical Limits
LM81BIM
Limits
LM81CIM
Units
(Note 9) (Note 10) (Note 10) (Limits)
POWER SUPPLY CHARACTERISTICS
I + Supply Current Interface Inactive 0.4 1.4 0.9 mA (max)
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Error −40˚C ≤ T
A
≤ +125˚C ± 3 ± 3 ˚C (max)
Resolution 9-bit mode
12-bit mode
0.5
0.0625
0.5
0.0625
˚C (min)
˚C (min)
LM81 ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS
Resolution 8 bits
TUE Total
Unadjusted
Error +2.5Vin,
+3.3Vin,
+5Vin (Notes 11, 12) +1.2
−1.2 +2
+0.8
% (max)
% (min)
Vccp1,
Vccp2 (Note 11) +1.2
−1.2 +2.4
0
% (max)
% (min)
+12Vin (Notes 11, 12) +1.2
−1.2 +3.1
+1.2 % (max)
% (min)
DNL Differential Non-Linearity ± 1 ± 1 LSB (max)
PSS Power Supply Sensitivity ± 0.4 %/V
t
C
Total Monitoring Cycle Time (Note 13)
9-bit Temp Resolution
12-bit Temp Resolution 0.4
0.82
1.2
0.82
1.2
sec
sec (max)
sec (max)
ADC INPUT CHARACTERISTICS
Input Resistance (All analog
inputs except Vccp1 and Vccp2) 115 90 90 k
Ω
(min)
Vccp1 and Vccp2 DC Input
Current ± 1 µA
LM81
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