H51275Z Просмотр технического описания (PDF) - Intersil
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H51275Z Datasheet PDF : 9 Pages
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HA-5127, HA-5127A
Application Information
RT
10K
1
2
-
3
+
4
V+
8
7
6
5
NOTE: Tested Offset Adjustment Range is |VOS + 1mV| minimum referred to output. Typical range is ±4mV with RT = 10kΩ.
FIGURE 3. SUGGESTED OFFSET VOLTAGE ADJUSTMENT
+
R1
-
R3
R2
C3
CS
R1
R2
-
+
R3
Low resistances are preferred for low noise applications as a 1kΩ resistor has 4nV/√Hz of thermal noise. Total resistances of greater than 10kΩ on either
input can reduce stability. In most high resistance applications, a few picofarads of capacitance across the feedback resistor will improve stability.
FIGURE 4. SUGGESTED STABILITY CIRCUITS
Typical Performance Curves Unless Otherwise Specified: TA = 25oC, VSUPPLY = ±15V
30
20
10
0
-10
-20
-30
-40
-50
-60
-60 -40 -20
0 20 40 60 80
TEMPERATURE (oC)
100 120
FIGURE 5. TYPICAL OFFSET VOLTAGE DRIFT vs TEMPERATURE
12
6
10
5
8
4
6
3
4
NOISE VOLTAGE
2
2
1
NOISE CURRENT
0
0
1
10
100
1K
10K 100K 1M
FREQUENCY (Hz)
FIGURE 6. NOISE CHARACTERISTICS
5
FN2906.6
July 27, 2005
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