OPA387DBVT datasheet(11/37 Pages) TI

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6.7 Typical Characteristics (continued)

at TA = 25°C, VS = ±2.75 V, VCM = VS / 2, RLOAD = 10 kΩ connected to VS / 2, and CL = 50 pF (unless otherwise noted)

Frequency (Hz)

100

120

140

160

10m 100m

100

10k

100k

10M

CMRR

PSRR−

PSRR

Figure 6-13. PSRR and CMRR vs Frequency

Time (1 s/div)

C130

Figure 6-14. 0.1-Hz to 10-Hz Noise

Frequency (Hz)

100m

100

10k

100k

c115

Figure 6-15. Input Voltage Noise Spectral Density vs Frequency

Frequency (Hz)

-200

-180

-160

-140

-120

-100

-80

-60

-40

100

10k

100k

10M

C122

Figure 6-16. Channel-to-Channel Crosstalk

Frequency (Hz)

0.0001

0.001

0.01

0.1

200

20k

-120

-100

-80

-60

C137

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 :

VS = 5.5 V, VOUT = 3 VRMS, BW = 80 kHz

Figure 6-17. THD+N Ratio vs Frequency

Output Amplitude (VRMS)

0.0001

0.001

0.01

0.1

10m

100m

-120

-100

-80

-60

-40

C136

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 :

VS = 5.5 V, f = 1 kHz, BW = 80 kHz

Figure 6-18. THD+N vs Output Amplitude

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