LMT89

SNIS176 – MARCH 2013

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ELECTRICAL CHARACTERISTICS

Unless otherwise noted, these specifications apply for V

UNIT

PARAMETER

CONDITIONS

(Limit)

±1.5

°C

Temperature to Voltage Error

±2.5

°C

Output Voltage at 0°C

1.8639

V

Variance from Curve

±1.0

°C

–20°C

±0.4%

Sensor Gain (Temperature Sensitivity or Average

−11.4

mV/°C (min)

Slope) to equation:

–30°C

−11.77

−12.2

mV/°C (max)

Output Impedance

0

(5) (6)

160

Ω

0

(5) (6)

−2.5

mV

2.4 V

3.3

mV/V

5.0 V

11

mV

2.4V

4.5

7

μA

Quiescent Current

5.0V

4.5

9

μA

2.4V

4.5

10

μA

Change of Quiescent Current

2.4 V

0.7

μA

Temperature Coefficient of Quiescent Current

−11

nA/°C

Shutdown Current

≤ 0.8 V

0.02

μA

(1)

(2)

Limits are specified to TI's AOQL (Average Outgoing Quality Level).

(3)

Accuracy is defined as the error between the measured and calculated output voltage at the specified conditions of voltage, current, and

temperature (expressed in°C).

(4)

Non-Linearity is defined as the deviation of the calculated output-voltage-versus-temperature curve from the best-fit straight line, over

the temperature range specified.

(5)

Negative currents are flowing into the LMT89. Positive currents are flowing out of the LMT89. Using this convention the LMT89 can at

most sink

−1 μA and source 16 μA.

(6)

Load regulation or output impedance specifications apply over the supply voltage range of 2.4V to 5.5V.

(7)

Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating

effects can be computed by multiplying the internal dissipation by the thermal resistance.

(8)

Line regulation is calculated by subtracting the output voltage at the highest supply input voltage from the output voltage at the lowest

supply input voltage.

4

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