LM87 datasheet(4/32 Pages) NSC

4 / 32 page

Absolute Maximum Ratings (Notes 1,

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

++ 0.3 V)

All other pins

−0.3 V to +6 V

Input Current at any Pin (Note 4)

±5mA

Package Input Current (Note 4)

±20 mA

Maximum Junction Temperature

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

MIN

≤ T

MAX

LM87

−40 ˚C

≤ T

≤ +125 ˚C

Specified Temperature Range

MIN

≤ T

MAX

LM87

−40 ˚C

≤ T

≤ +125 ˚C

Junction to Ambient Thermal Resistance (

JA(Note 5))

NS Package Number: MTC24B

95 ˚C/W

Supply Voltage (V

+2.8 V to +3.8 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

≤ V+ ≤ +3.8 V

DC, Analog voltage inputs RS = 510

Ω, unless otherwise speci-

fied. Boldface limits apply for T

A =T J =TMIN to TMAX; all other limits TA =TJ = 25 ˚C.(Note 8)

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 9)

(Note 10)

(Limits)

POWER SUPPLY CHARACTERISTICS

Supply Current

Normal Mode, Interface

Inactive

0.7

2.0

mA (max)

Shutdown Mode

0.5

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

≤ +125 ˚C, Vcc

= 3.3 Vdc

±3

˚C (max)

Temperature Error using Remote 2N3904

Sensor (Note 11) and (Note 12)

−40 ˚C

≤ T

≤ +125 ˚C,

Vcc = 3.3 Vdc

±4

˚C (max)

Resolution

8 bits

1.0

˚C (min)

LM87 ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS

Resolution

bits

TUE

Total Unadjusted Error

(Note 13)

±2

% (max)

DNL

Differential Non-Linearity

±1

LSB (max)

Total Monitoring Cycle Time

(Note 14)

0.28

sec

ADC INPUT CHARACTERISTICS

Input Resistance (All analog inputs except

AIN1 and AIN2)

130

Ω (min)

AIN1 and AIN2 DC Input Current

µA

DAC CHARACTERISTICS

Resolution

Bits

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