Rainbow Electronics LM87 - Manual (Page 4)

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 + ) +6.0 V
Voltage on Any Input or Output Pin:
+12Vin −0.3 V to +18 V
ADD/NTESTOUT,
DACOut/NTEST_IN, AIN1, AIN2
−0.3 V to
(V + + 0.3 V)
All other pins −0.3 V to +6 V
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 2500 V
Machine Model 150V
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
LM87 −40 ˚C ≤ T
A
≤ +125 ˚C
Specified Temperature Range T
MIN
≤ T
A
≤ T
MAX
LM87 −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 + ) +2.8 V to +3.8 V
V
IN
Voltage Range:
+12Vin −0.05 V to +15 V
+5Vin −0.05 V to +6.8 V
+3.3Vin −0.05 V to +4.6 V
+2.5Vin −0.05 V to +3.6 V
VID0 - VID4, Vccp −0.05 V to +6.0 V
All other inputs −0.05 V to (V + + 0.05 V)
DC Electrical Characteristics
The following specifications apply for +2.8 V
DC
≤ V + ≤ +3.8 V
DC
, Analog voltage inputs R
S
= 510 Ω, unless otherwise speci-
fied. 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 Units
(Note 9) (Note 10) (Limits)
POWER SUPPLY CHARACTERISTICS
I + Supply Current Normal Mode, Interface
Inactive
0.7 2.0 mA (max)
Shutdown Mode 0.5 mA
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Temperature Error using Internal Diode ± 3 ˚C
Temperature Error using Remote Pentium
Diode Sensor (Note 11) and (Note 12)
0 ˚C ≤ T
A
≤ +125 ˚C, Vcc
= 3.3 Vdc
± 3 ˚C (max)
Temperature Error using Remote 2N3904
Sensor (Note 11) and (Note 12)
−40 ˚C ≤ T
A
≤ +125 ˚C,
Vcc = 3.3 Vdc
± 4 ˚C (max)
Resolution 8 bits 1.0 ˚C (min)
LM87 ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS
Resolution 8 bits
TUE Total Unadjusted Error (Note 13) ± 2 % (max)
DNL Differential Non-Linearity ± 1 LSB (max)
t
C
Total Monitoring Cycle Time (Note 14) 0.28 sec
ADC INPUT CHARACTERISTICS
Input Resistance (All analog inputs except
AIN1 and AIN2)
130 90 k Ω (min)
AIN1 and AIN2 DC Input Current 12 µA
DAC CHARACTERISTICS
Resolution 8 Bits
LM87
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