5

TMP20

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SBOS466B – DECEMBER 2009 – REVISED DECEMBER 2018

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(1)

100% production tested at TA = 25°C. Specifications over temperature range are assured by design.

(2)

Power-supply rejection is encompassed in the accuracy specification.

(3)

Temperature sensitivity is the average slope to the equation VO = (–11.77 × T) + 1.860 V.

(4)

VOUT is calculated from temperature with the following equation:

VO = (–3.88 × 10

–6 × T2) + (–1.15 × 10–2 × T) + 1.8639 V,

where T is in °C.

(5)

Nonlinearity is the deviation of the calculated output voltage from the best fit straight line.

(6)

The TMP20 transfer function requires the output voltage to rise above the 1.8-V supply as the temperature decreases below 15°C.

When operating at a 1.8-V supply, it is normal for the TMP20 output to approach 1.8 V and remain at that voltage as the temperature

continues to decrease below 15°C. This condition does not damage the device. Once the temperature rises above 15°C, the output

voltage resumes changing as the temperature changes, according to the transfer function specified in this document. For more

information about the transfer function, see Transfer Function .

6.5 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

TEMPERATURE MEASUREMENT (1)

Accuracy (2)

TA = –55°C to 130°C

–2.5

2.5

°C

vs supply

V+ = 1.8 V to 5.5 V

TA = 15°C to 130°C

–0.05

0.05

°C/V

V+ = 2.7 V to 5.5 V

TA = –50°C to 130°C

–0.05

0.05

°C/V

Temperature sensitivity (3)

TA = –30°C to 100°C

–12.2

–11.77

–11.4

mV/°C

Output voltage (4)

TA = 0°C

1863.9

mV

TA = 25°C

1574

Nonlinearity (5)

–20°C

≤ TA ≤ 80°C

±0.4%

ANALOG OUTPUT

Output resistance

–600 µA

≤ ILOAD ≤ 600 μA

10

Ω

Load regulation

–600 µA

≤ ILOAD ≤ 600 μA

6

mV

Maximum capacitive load

1

nF

POWER SUPPLY

VS

Specified voltage

TA = –55°C to 130°C

2.7

5.5

V

TA = 15°C to 130°C

(6)

1.8

5.5

IQ

Quiescent current

V+ = 5.5 V

TA = 25°C

2.6

4

µA

Over temperature

V+ = 5.5 V

TA = –55°C to 130°C

6

µA

ISD

Shutdown current

V+ < 0.5 V

20

nA

TEMPERATURE RANGE

Specified operating

TA = –55°C to 130°C

–55

130

°C

TA = 15°C to 130°C

(6)

15

130

°C

Operating range

V+ = 2.7 V to 5.5 V

–55

150

°C

θJA

Thermal resistance

SC70

185

°C/W

SOT-563

238

°C/W

Self-heating

SC70

0.01

°C

SOT-563

0.01

°C