DS1870(2004) 데이터 시트보기 (PDF) - Maxim Integrated
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DS1870 Datasheet PDF : 28 Pages
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LDMOS RF Power-Amplifier Bias
Controller
ANALOG VOLTAGE-MONITORING CHARACTERISTICS
(VCC = +4.5 to 5.5V, TA = -40°C to +95°C.)
PARAMETER
VD Monitor Factory-
Calibrated FS
VCC Monitor Factory-
Calibrated FS
ID1 and ID2 Monitor Factory-
Calibrated FS
Resolution
(VCC, VD, ID1, ID2)
Accuracy
(VCC, VD, ID1, ID2)
Update Rate for
VCC, VD, ID1, ID2
SYMBOL
CONDITIONS
Code FFF8h
Code FFF8h
Code FFF8h
tframe
MIN
2.488
TYP
2.500
MAX
2.513
UNITS
V
6.521 6.553 6.587
V
0.4975 0.5000 0.5025
V
0.0122
%FS
0.25
0.5
%FS
50
ms
DIGITAL THERMOMETER CHARACTERISTICS
(VCC = +4.5 to 5.5V, TA = -40°C to +95°C.)
PARAMETER
Thermometer Error
Update Rate
SYMBOL
TERR
tframe
CONDITIONS
-40°C to 95°C
MIN TYP MAX UNITS
-3
+3
°C
50
ms
ANALOG POTENTIOMETER CHARACTERISTICS
(VCC = +4.5 to 5.5V, TA = -40°C to +95°C.)
PARAMETER
Wiper Resistance
Potentiometer
End-to-End Resistance
Resolution
Absolute Linearity
Relative Linearity
Ratiometric Temperature
Coefficient
End-to-End Temperature
Coefficient
-3dB Cutoff Frequency
Series Resistors from L1, L2 to
GND
VHCOM/VLX
SYMBOL
+25°C
RPOT +25°C
(Note 3)
(Note 4)
(Note 5)
RS
+25°C
CONDITIONS
MIN TYP MAX UNITS
500 1000
Ω
10.0
13
16.8
kΩ
0.4
%FS
-1
+1
LSB
-0.5
+0.5 LSB
5
ppm/°C
70
ppm/°C
1
MHz
15.1 19.5 25.2
kΩ
0.5975 0.6 0.6025
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