OPA310 datasheet(21/55 Pages) TI

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7.8 Typical Characteristics (continued)

at TA = 25°C, V+ = 2.75 V, V– = –2.75 V, RL = 10 kΩ connected to VS / 2, VCM = VS / 2, and VOUT = VS / 2 (unless otherwise

noted)

Frequency (Hz)

-110

-100

-90

-80

-70

-60

100

10k

D030

RL = 2 k:

RL = 10 k:

RL = 100 k:

VS = 5.5 V

VCM = 2.5 V

G = 1

BW = 80 kHz

VOUT = 0.5 VRMS

Figure 7-31. THD + N vs Frequency

Frequency (Hz)

-90

-80

-70

-60

-50

-40

100

10k

D030

RL = 2 k:

RL = 10 k:

RL = 100 k:

VS = 5.5 V

VCM = 2.5 V

G = –1

BW = 80 kHz

VOUT = 0.5 VRMS

Figure 7-32. THD + N vs Frequency

Amplitude(VRMS)

-120

-105

-90

-75

-60

-45

-30

-15

10m

100m

D031

RL = 2 k:

RL = 10 k:

RL = 100 k:

VS = 5.5 V

VCM = 2.5 V

f = 1 kHz

G = 1

BW = 80 kHz

Figure 7-33. THD + N vs Amplitude

Amplitude(VRMS)

-120

-105

-90

-75

-60

-45

-30

-15

10m

100m

D031

RL = 2 k:

RL = 10 k:

RL = 100 k:

VS = 5.5 V

VCM = 2.5 V

f = 1 kHz

G = –1

BW = 80 kHz

Figure 7-34. THD + N vs Amplitude

Supply Voltage (V)

1.5

2.5

3.5

4.5

5.5

120

130

140

150

160

170

180

D38_

VCM = VS/2

Figure 7-35. Quiescent Current vs Supply Voltage

Input Common-Mode Voltage (V)

-2.75

-1.75

-0.75

0.25

1.25

2.25

120

130

140

150

160

170

180

D39_

V+ = 2.75 V, V– = –2.75 V

Figure 7-36. Quiescent Current vs Common-Mode Voltage

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OPA310, OPA2310, OPA4310

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