OPA310 datasheet(19/55 Pages) TI

19 / 55 page

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)

200

400

600

800

1000

1200

1400

1600

1800

2000

10k

100k

10M

D008

Figure 7-19. Open-Loop Output Impedance vs Frequency

Frequency (Hz)

-20

-10

100

10k

100k

10M

D017

G = -1

G = 1

G = 10

G = 100

CL = 10 pF

Figure 7-20. Closed-Loop Gain vs Frequency

Output Current (mA)

100

120

140

160

180

2.2

2.3

2.4

2.5

2.6

2.7

2.8

D32_

-40°C

25°C

85°C

125°C

V+ = 2.75 V, V– = –2.75 V

Figure 7-21. Output Voltage Swing vs Output Current (Sourcing)

Output Current (mA)

120

160

200

240

270

-2.8

-2.7

-2.6

-2.5

-2.4

-2.3

-2.2

D33_

-40°C

25°C

85°C

125°C

V+ = 2.75 V, V– = –2.75 V

Figure 7-22. Output Voltage Swing vs Output Current (Sinking)

Output Current (mA)

-0.5

-0.3

-0.1

0.1

0.3

0.5

0.7

0.9

1.1

D34_

-40°C

25°C

125°C

V+ = 0.9 V, V– = –0.9 V

Figure 7-23. Output Voltage Swing vs Output Current (Sourcing)

Output Current (mA)

10 12 14 16 18 20 22 24 26 28

-1

-0.8

-0.6

-0.4

-0.2

0.2

D35_

-40°C

25°C

125°C

V+ = 0.9 V, V– = –0.9 V

Figure 7-24. Output Voltage Swing vs Output Current (Sinking)

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