HA-5147-2(2006) Ver la hoja de datos (PDF) - Intersil

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HA-5147-2
(Rev.:2006)

120MHz, Ultra-Low Noise Precision Operational Amplifiers

Intersil 

HA-5147

Application Information

RP

10K

8

1

2

-

+

3

4

V+

7

6

5

NOTE: Tested Offset Adjustment

Range is |VOS +1mV| minimum re-

ferred to output. Typical range is ±4mV

with RP = 10kΩ.

FIGURE 3. SUGGESTED OFFSET VOLTAGE ADJUSTMENT

R1

+

-

R3

R2

CS

CS

R1

R3

R2

-

+

NOTE: 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 TA = 25oC, VSUPPLY = ±15V, Unless Otherwise Specified

30

20

10

0

-10

-20

-30

-40

-50

-60

-60 -40 -20

0 20 40 60 80 100 120

TEMPERATURE (oC)

12

6

VS = ±15V, TA = 25oC

10

5

8

4

6

3

NOISE VOLTAGE

4

2

2

1

NOISE CURRENT

0

0

1

10

100

1K

10K 100K

1M

FREQUENCY (Hz)

FIGURE 5. TYPICAL OFFSET VOLTAGE vs TEMPERATURE

FIGURE 6. NOISE CHARACTERISTICS

6

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