LM70CIMM-3 National Semiconductor, LM70CIMM-3 Datasheet - Page 6

• Manufacturer Part Number: LM70CIMM-3
• Description: Temperature Sensor IC
• Manufacturer: National Semiconductor

Specifications of LM70CIMM-3

• Peak Reflow Compatible (260 C): No
• Ic Function: Temperature Sensor IC
• Supply Voltage Max: 5.5V
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Operating Temperature Range: -40°C To +85°C
• Temperature Sensor Function: Temp Sensor
• Output Type: Digital
• Resolution: 10+SignBit
• Package Type: MSOP
• Operating Temperature (min): -55
• Operating Temperature (max): 150C
• Operating Temperature Classification: Military
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.
Note 2: When the input voltage (V
maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four.
Note 3: See the section titled “Surface Mount” found in a current National Semiconductor Linear Data Book for other methods of soldering surface mount devices.
Note 4: Human body model, 100 pF discharged through a 1.5 kΩ resistor. Machine model, 200 pF discharged directly into each pin.
Note 5: The life expectancy of the LM70 will be reduced when operating at elevated temperatures. LM70 θ
attached to a printed circuit board with 2 oz. foil is summarized in the table below:
Note 6: Both part numbers of the LM70 will operate properly over the V
−10°C to +65°C, −40°C to +85°C, −55°C to +125°C and −55°C to +150°C include error induced by power supply variation of ±5% from the nominal value.
Temperature error will increase by ±0.3°C for a power supply voltage (V
Note 7: Typicals are at T
Note 8: Limits are guaranteed to National's AOQL (Average Outgoing Quality Level).
Note 9: This specification is provided only to indicate how often temperature data is updated. The LM70 can be read at any time without regard to conversion
state (and will yield last conversion result). A conversion in progress will not be interrupted. The output shift register will be updated at the completion of the read
and a new conversion restarted.
Note 10: For best accuracy, minimize output loading. Higher sink currents can affect sensor accuracy with internal heating. This can cause an error of 0.64°C at
full rated sink current and saturation voltage based on junction-to-ambient thermal resistance.
A
= 25°C and represent most likely parametric norm.
I
) at any pin exceeds the power supplies (V
Device Number
LM70CIMM
LM70CILD
FIGURE 4. Data Input Timing Diagram
+
+
supply voltage range of 2.65V to 5.5V. The temperature error for temperature ranges of
) variation of ±10% from the nominal value.
I
< GND or V
6
NS Package
MUA08A
Number
LDA08A
I
> +V
S
) the current at that pin should be limited to 5 mA. The 20 mA
JA
Resistance (θ
(thermal resistance, junction-to-ambient) when
51.3°C/W
200°C/W
Thermal
JA
)
10122306