7.6 Typical Characteristics

at TA = 25°C, VS = ±15 V, RL = 10 kΩ, VREF = 0 V, VCM = VS / 2, and G = 1 (unless otherwise noted)

-40

-20

0

20

40

60

80

100

1k

10k

100k

1M

10M

Frequency (Hz)

G = 1

G = 10

G = 100

G = 1000

C001

Figure 7-1. Gain vs Frequency

Frequency (Hz)

10

100

10k

1M

1k

140

120

100

80

60

40

20

0

100k

G = 1V/V

G = 10V/V

G = 100V/V

G = 1000V/V

Figure 7-2. Common-Mode Rejection vs Frequency

Frequency (Hz)

0

20

40

60

80

100

120

140

160

10

100

1k

10k

100k

G = 1

G = 10

G = 100

G = 1000

Figure 7-3. Positive Power Supply Rejection vs Frequency

0

20

40

60

80

100

120

140

1

10

100

1k

10k

100k

Frequency (Hz)

G = 1

G = 10

G = 100

G = 1000

C004

Figure 7-4. Negative Power Supply Rejection vs Frequency

Output Voltage (V)

0

5

15

15

10

5

0

10

G = 1

G = 1

G ≥ 10

G ≥ 10

VD/2

+

+

VCM

V

V

O

D/2

Ref

15V

+15V

+

−5

−10

−15

−

−

−

−5

−10

−15

VS = ±15 V

Figure 7-5. Input Common-Mode Range vs Output Voltage

Output Voltage (V)

5

4

3

2

1

0

0

1

2

3

4

5

G = 1

G = 1

G ≥ 10

G ≥ 10

G ≥ 10

G = 1

−1

−2

−3

−4

−5

−1

−2

−3

−4

−5

VS = ±2.5V

VS = ±5V

VS = ±5 V, ±2.5 V

Figure 7-6. Input Common-Mode Range vs Output Voltage

INA128, INA129

SBOS051F – OCTOBER 1995 – REVISED MAY 2022

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