6.6 Typical Characteristics

at TA = 25°C, VS+ = 2.5V, VS– = –2.5V, VIN+ = 0V, RF = 453Ω, gain = 7 V/V, RL = 200Ω, and output load referenced to

midsupply (unless otherwise noted)

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

6

1M

10M

100M

1G

5G

Gain = -7 V/V , RF = 453

Gain = +7 V/V , RF = 453

Gain = +10 V/V , RF = 453

Gain = +20 V/V , RF = 909

Gain = +40 V/V , RF = 909

VOUT = 100mVPP; for circuit configuration, see Section 7

Figure 6-1. Small-Signal Frequency Response vs Gain

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

5G

RL = 200

VOUT = 100mVPP

Figure 6-2. Small-Signal Frequency Response vs Output Load

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

TA =

−40 C

TA = 25 C

TA = 85 C

TA = 125 C

Gain = 40V/V, RF = 909Ω, VOUT = 100mVPP

Figure 6-3. Small-Signal Frequency Response

vs Ambient Temperature

Frequency (Hz)

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

1M

10M

100M

1G

5G

VOUT = 2VPP

Figure 6-4. Large-Signal Response for 0.1dB Gain Flatness

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

5G

VS = 5 V, VOUT = 2 VPP

VS = 5 V, VOUT = 1 VPP

Figure 6-5. Large-Signal Frequency Response

vs Voltage Supply

Frequency (Hz)

-20

-250

0

-200

20

-150

40

-100

60

-50

80

0

100

50

100k

1M

10M

100M

1G

10G

AOL Magnitude (dB)

AOL Phase ( )

Small-signal response

Figure 6-6. Open-Loop Magnitude and Phase vs Frequency

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OPA955

SLOSEE6 – JULY 2026

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