6.6 Typical Characteristics

at VS = ±18 V, TA = 25°C, VVOCM = VVICM = 0 V, RF = 2 kΩ, RL = 10 kΩ, VOUT = 2 VPP, G = 1 V/V, and V PD = VS

+ (unless otherwise noted)

Frequency (Hz)

1

2

3

5

7

10

20

30

50

70

100

100m

1

10

100

1k

10k

100k

D013

Figure 6-1. Input-Referred Voltage Noise vs

Frequency

Frequency (Hz)

0.1

0.5

2 3 5 10 20

100

1000

10000

100000

100

200

300

500

700

1000

2000

3000

5000

D014

Figure 6-2. Current Noise vs Frequency

Frequency (Hz)

-125

-120

-115

-110

-105

-100

-95

-90

10

100

20k

1k

10k

D015

RL = 2 k:

RL = 10 k:

RL = 600 :

VOUT = 3 VRMS, VS = ±15 V

Figure 6-3. Total Harmonic Distortion + Noise vs

Frequency

Output Amplitude (VRMS)

1E-5

0.0001

0.001

0.01

0.1

10m

100m

1

10

-140

-120

-100

-80

-60

D016

RL = 2 k:

RL = 10 k:

f = 1 kHz, VS = ±15 V

Figure 6-4. Total Harmonic Noise + Distortion vs

Amplitude

Frequency (Hz)

-20

-200

0

-160

20

-120

40

-80

60

-40

80

0

100

40

120

80

140

120

160

160

180

200

1

10

100

1k

10k

100k

1M

10M

D068

Gain

Phase

VS = ±15 V, CL = 50 pF

Figure 6-5. Open Loop Gain vs Frequency

Frequency (Hz)

-20

-10

0

10

20

30

40

50

1k

10k

100k

1M

10M

D009

G = 1

G = 10

G = 100

VS = ±15 V, CL = 50 pF

Figure 6-6. Closed-Loop Gain vs Frequency

OPA1637

SBOSA00B – DECEMBER 2019 – REVISED AUGUST 2020

www.ti.com

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