AD8290 Datasheet, PDF (12/20 Pages) Analog Devices – G = 50, CMOS Sensor Amplifier with Current Excitation

AD8290
310
305
300
295
2.6V SUPPLY
290
285
3.6V SUPPLY
5.0V SUPPLY
280
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
PIN VOLTAGE (V)
Figure 33. Low Excitation Current vs. Excitation Current Pin Voltage
1.32
1.31
1.30
1.29
2.6V SUPPLY
1.28
1.27
3.6V SUPPLY
5.0V SUPPLY
1.26
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
PIN VOLTAGE (V)
Figure 34. High Excitation Current vs. Excitation Current Pin Voltage
0.905
0.904
0.903
0.902
2.6V SUPPLY
0.901
0.900
3.6V SUPPLY
0.899
0.898 ^{5.0V SUPPLY}
0.897
0.896
0.895
–45 –35 –25 –15 –5 5 15 25 35 45 55 65 75 85 95
TEMPERATURE (°C)
Figure 35. Output Offset Voltage vs. Temperature
50.0
49.9
49.8
2.6V SUPPLY
5V SUPPLY
49.7
3.6V SUPPLY
49.6
49.5
–55 –45 –35 –25 –15 –5 5 15 25 35 45 55 65 75 85 95
TEMPERATURE (°C)
Figure 36. Gain vs. Temperature
0.305
0.304
0.303
0.302
0.301
5.0V SUPPLY ^{2.6V SUPPLY}
0.300
0.299
3.6V SUPPLY
0.298
0.297
0.296
0.295
–45 –35 –25 –15 –5 5 15 25 35 45 55 65 75 85 95
TEMPERATURE (°C)
Figure 37. Excitation Current vs. Temperature, RSET = 3 kΩ
1.315
1.310
1.305
1.300
1.295
2.6V SUPPLY
5.0V SUPPLY
3.6V SUPPLY
1.290
1.285
–45 –35 –25 –15 –5 5 15 25 35 45 55 65 75 85 95
TEMPERATURE (°C)
Figure 38. Excitation Current vs. Temperature, RSET = 692 Ω
Rev. B | Page 12 of 20