INA821 datasheet(18/47 Pages) TI

18 / 47 page

7.7 Typical Characteristics (continued)

at TA = 25°C, VS = ±18 V, VCM = VOUT = VS / 2, RL = 10 kΩ, REF pin connected to ground, G = 1/2 (unless otherwise noted)

Output Amplitude (VRMS)

0.0001

0.001

0.01

0.1

10m

100m

-40

-60

-80

-100

-120

D055

RL = 10 k:

RL = 2 k:

RL = 600 :

G = 1/2

Figure 7-55. THD+N Ratio vs Output Amplitude

Output Amplitude (VRMS)

0.0001

0.001

0.01

0.1

-40

-60

-80

-100

-120

10m

100m

D056

RL = 10 k:

RL = 2 k:

RL = 600 :

G = 2

Figure 7-56. THD+N Ratio vs Output Amplitude

Temperature (qC)

-40

-20

100

120

140

0.98

1.02

1.04

1.06

1.08

1.1

D057

G = 1/2

30 units

Figure 7-57. Supply Current vs Temperature

Temperature (qC)

-40

-20

100

120

140

0.96

0.97

0.98

0.99

1.01

1.02

1.03

1.04

1.05

1.06

1.07

D058

G = 2

30 units

Figure 7-58. Supply Current vs Temperature

Total Supply (V)

0.5

1.5

2.5

3.5

4.5

D059

G = 1/2

30 units

Figure 7-59. Supply Current vs Supply Voltage

Total Supply (V)

-0.5

0.5

1.5

2.5

3.5

4.5

D060

G = 2

30 units

Figure 7-60. Supply Current vs Supply Voltage

INA597

SBOS385B – AUGUST 2019 – REVISED APRIL 2021

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