lm94023bitmx National Semiconductor Corporation, lm94023bitmx Datasheet - Page 10

• Manufacturer Part Number: lm94023bitmx
• Description: 1.5v, Micro Smd, Dual-gain Analog Temperature Sensor With Class Ab Output
• Manufacturer: National Semiconductor Corporation

www.national.com
Although the LM94023 is very linear, its response does have
a slight downward parabolic shape. This shape is very accu-
rately reflected in the LM94023 Transfer Table. For a linear
approximation, a line can easily be calculated over the de-
Temperature
(°C)
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
GS = 0
(mV)
279
273
267
261
255
249
243
237
231
225
219
213
207
201
195
189
183
GS = 1
(mV)
443
434
425
416
408
399
390
381
372
363
354
346
337
328
319
310
301
10
sired temperature range from the Table using the two-point
equation:
Where V is in mV, T is in °C, T
the lowest temperature, T
highest temperature.
For example, if we want to determine the equation of a line
with the Gain Setting at GS1 = 0 and GS0 = 0, over a tem-
perature range of 20°C to 50°C, we would proceed as follows:
Using this method of linear approximation, the transfer func-
tion can be approximated for one or more temperature ranges
of interest.
2
and V
1
and V
2
are the coordinates of the
1
are the coordinates of