5.8 Typical Characteristics

at TA = 25°C, VS = ±15V, RL = 2kΩ connected to midsupply, and VCM = VOUT = midsupply (unless otherwise noted)

Frequency (Hz)

0.1

0.01

0.001

0.0001

0.00001

10

100

1k

10k

100k

V

O = 3Vrms

G = +1

G = +10

2kW

600W

R

L

Figure 5-1. Total Harmonic Distortion + Noise vs Frequency

Output Amplitude (Vpp)

1

0.1

0.010

0.001

0.0005

5

30m

0.1

1

10

30

Baseline

OP176

OPA134

OPA134

G = +1

f = 1kHz

R = 2k

L

W

Figure 5-2. SMPTE Intermodulation Distortion

vs Output Amplitude

Frequency (Hz)

0.01

0.001

0.0001

0.00001

20

100

1k

10k

20k

V

S = ±16

V

S = ±17

V

S = ±18

V = 10Vrms

O

R = 2k

L

W

Figure 5-3. Total Harmonic Distortion + Noise vs Frequency

Output Amplitude (Vrms)

1

0.1

0.010

0.001

0.0005

0.1

1

10

20

THD < 0.01%

OPA134 – 11.7Vrms

OP176 – 11.1Vrms

Baseline

OP176

OPA134

OPA134

V = 18V

S

±

R = 2k

f = 1kHz

L

W

Figure 5-4. Headroom – Total Harmonic Distortion + Noise

vs Output Amplitude

Frequency (Hz)

0.01

0.001

0.0001

0.00001

0.000001

20

100

1k

10k

20k

2nd Harmonic

3rd Harmonic

V

O = 1Vrms

R

= 6

00

L

W

R

= 2

k

L

W

Figure 5-5. Harmonic Distortion + Noise vs Frequency

Source Resistance ( )

Ω

1k

100

10

1

0.1

10

100

1k

10k

100k

1M

10M

OP176+

Resistor

OPA134+

Resistor

Resistor Noise

Only

V (total) =

(i R ) + e

+ 4kTR

n

n

S

n

S

2

2

Figure 5-6. Voltage Noise vs Source Resistance

www.ti.com

OPA134, OPA2134, OPA4134

SBOS058B – DECEMBER 1997 – REVISED NOVEMBER 2024

Copyright © 2024 Texas Instruments Incorporated

Submit Document Feedback

9

Product Folder Links: OPA134 OPA2134 OPA4134