MAX1463 Datasheet, PDF (10/49 Pages) Maxim Integrated Products – Low-Power Two-Channel Sensor Signal Processor

Low-Power Two-Channel Sensor
Signal Processor
Typical Operating Characteristics (continued)
(V_DD = 5.0V, T_A = +25°C, unless otherwise noted.)
ADC DNL
4
3
2
1
0
-1
-2
-3
-4
-1.0
-0.5
PGA[4:0] = 01000
0
0.5
1.0
INPUT VOLTAGE NORMALIZED TO FULL SCALE
DAC INL
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8
INPUT NORMALIZED TO FULL SCALE
DAC DNL
3
2
1
0
-1
-2
-3
-0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8
INPUT VOLTAGE NORMALIZED TO FULL SCALE
DAC DYNAMIC RESPONSE
5
DAC CODE = 4000h
4
1V/div 3
2
1
DAC CODE = C000h
0
200µs/div
INTERNAL OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
4.15
4.10
T_A = -40°C
4.05
4.00
T_A = +25°C
3.95
T_A = +125°C
3.90 _OSCILLATOR
FREQUENCY TRIMMED
3.85 _{TO 4MHz AT +25°C,}
V_DD = 5V
3.80
4.5 4.7 4.9 5.1 5.3 5.5
SUPPLY VOLTAGE, V_DD (V)
DAC RATIOMETRICITY ERROR
vs. SUPPLY VOLTAGE
0.05
0.04
DAC INPUT = 5555CH (4.5V AT V_DD = 5V)
0.03
DAC INPUT = 0000CH (2.5V AT V_DD = 5V)
0.02
0.01
0
-0.01
-0.02
-0.03 ^{DAC INPUT = AAABCH (0.5V AT VDD = 5V)}
-0.04
-0.05
4.5 4.7 4.9 5.1 5.3 5.5
SUPPLY VOLTAGE, V_DD (V)
TEMPERATURE SENSOR OUTPUT
vs. TEMPERATURE
18000
16000
14000
12000
10000
8000
-40 -13 15 43 70 98 125
TEMPERATURE (°C)
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