OPA328DBVR datasheet(13/42 Pages) TI

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5.7 Typical Characteristics (continued)

at TA = 25°C, VS = 5.5 V, VCM = VOUT = mid-supply, CL = 20 pF, and RL = 10 kΩ (unless otherwise noted)

Supply Voltage − Output Voltage (V)

0.001

0.002

0.005

0.01

0.02 0.03 0.050.07 0.1

100

120

140

RL = 10 k

RL = 2 k

Figure 5-25. Open-Loop Gain vs Output to Supply Voltage Delta

Supply Voltage − Output Voltage (V)

0.001

0.002

0.005

0.01

0.02 0.03 0.050.07 0.1

100

120

140

TA = −40C

TA = 0C

TA = 25C

TA = 85C

TA = 125C

RL = 2 kΩ

Figure 5-26. Open-Loop Gain vs Output to Supply Voltage Delta

Capacitance (pF)

30 40 50 70 100

200 300

500 700 1000

RISO = 0 

RISO = 25 

RISO = 50 

G = –1

Figure 5-27. Small-Signal Overshoot vs Load Capacitance

Capacitance (pF)

30 40 50 70 100

200 300

500 700 1000

RISO = 0 

RISO = 25 

RISO = 50 

G = +1

Figure 5-28. Small-Signal Overshoot vs Load Capacitance

Output Amplitude (VRMS)

1E-5

2E-5

5E-5

0.0001

0.0002

0.0005

0.001

0.002

0.005

0.01

0.02

0.05

0.1

100m

-140

-120

-100

-80

-60

G = −1, RL = 10 k

G = −1, RL = 2 k

G = −1, RL = 600 

G =

+1, RL = 10 k

G =

+1, RL = 2 k

G =

+1, RL = 600 

f = 1 kHz

Figure 5-29. THD+N vs Amplitude

Frequency (Hz)

0.0001

0.0002

0.0003

0.0004

0.0005

0.0007

0.001

0.002

200

20k

-120

-100

G = −1, RL = 10 k

G = −1, RL = 2 k

G = −1, RL = 600 

G =

+1, RL = 10 k

G =

+1, RL = 2 k

G =

+1, RL = 600 

VOUT = 1 VRMS

Figure 5-30. THD+N vs Frequency

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OPA328, OPA2328

SBOS957D – FEBRUARY 2022 – REVISED DECEMBER 2023

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