HA-5101 Просмотр технического описания (PDF) - Intersil

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HA-5101

10MHz, Low Noise, Operational Amplifiers

Intersil 

HA-5101

7V. If the 5101 will be used in conditions where that voltage

may be exceeded, then current limiting resistors must be

used. No more than 25mA should be allowed to flow in the

HA-5101’s input.

Comparator Circuit

∆VIN

RLIM

2

∆VIN

RLIM

3

V+

7

-

6

+

4

V-

Choose RLIM Such That:

(---∆----V----I--N----M-----A----X-----–-----7---V-----)

25 m A

≤

2RLIM

Output Saturation

When an op amp is overdriven, output devices can saturate

and sometimes take a long time to recover. Saturation can

be avoided (sometimes) by using circuits such as:

V+

R1

R2

+

-

R3

VSOURCE

R4

V-

Typical Performance Curves

8

7

6

5

4

VOLTAGE

3

2

CURRENT

1

0

10

100

1K

10K

FREQUENCY (Hz)

FIGURE 6. NOISE SPECTRUM

100K

If saturation cannot be avoided the HA-5101 recovers from a

25% overdrive in about 6.5µs (see photos).

IN

OUT

Top: Input

Bottom: Output, 5V/Div., 2µs/Div.

Output is overdriven negative and recovers in 6µs.

1500

1000

500

0

-50 -25

0

25

50

75

TEMPERATURE (oC)

100 125

FIGURE 7. OFFSET VOLTAGE vs TEMPERATURE

6

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