6.6 Typical Characteristics

at TA = 25°C, VS+ = 2.5 V, VS– = –2.5 V, VIN+ = 0 V, gain = 1 V/V, RF = 0 Ω, RL = 200 Ω, and output load referenced to

midsupply (unless otherwise noted)

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

5G

D300

Gain = +1 V/V

Gain = 1 V/V

Gain = +2 V/V

Gain = +5 V/V

Gain = +20 V/V

VOUT = 100 mVPP; see Section 7 for circuit configuration

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

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

5G

D302

VS = 3.3 V

VS = 5 V

VOUT = 100 mVPP

Figure 6-2. Small-Signal Frequency Response vs Supply

Voltage

Frequency (Hz)

-12

-9

-6

-3

0

3

1M

10M

100M

1G

5G

D303

RL = 100 :

RL = 200 :

RL = 400 :

VOUT = 100 mVPP

Figure 6-3. Small-Signal Frequency Response vs Output Load

Frequency (Hz)

-8

-7

-6

-5

-4

-3

-2

-1

0

1

2

1M

10M

100M

1G

5G

D304

TA = 125qC

TA = 85qC

TA = 25qC

TA = 0qC

TA = 40qC

VOUT = 100 mVPP

Figure 6-4. Small-Signal Frequency Response vs Ambient

Temperature

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

1M

10M

100M

D301

VS = r1.65 V, VOUT = 100 mVPP, VCM = 0 V

VS = r2.5 V, VOUT = 100 mVPP, VCM = 0.9 V

VS = r2.5 V, VOUT = 2 VPP, VCM = 0 V

Gain = 20 V/V

RF = 453 Ω

Figure 6-5. Frequency Response at Gain = 20 V/V

Frequency (Hz)

-12

-10

-8

-6

-4

-2

0

2

4

1M

10M

100M

1G

D305

RS = 18 :, CL = 10 pF

RS = 9.1 :, CL = 47 pF

RS = 6.2 :, CL = 100 pF

RS = 2 :, CL = 1 nF

VOUT = 100 mVPP, See Figure 7-4 for circuit configuration

Figure 6-6. Small-Signal Frequency Response vs Capacitive

Load

OPA859

SBOS852A – SEPTEMBER 2018 – REVISED MAY 2025

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