OPA2134UA2K5 Datasheet, PDF (4/20 Pages) Texas Instruments – High Performance AUDIO OPERATIONAL AMPLIFIERS

TYPICAL PERFORMANCE CURVES (CONT)
At T_A = +25°C, V_S = ±15V, R_L = 2kΩ, unless otherwise noted.
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
0.01
V_O = 10Vrms
R_L = 2kΩ
0.001
0.0001
V_S = ±16
V_S = ±17
0.00001
V_S = ±18
20
100
1k
Frequency (Hz)
10k 20k
HEADROOM – TOTAL HARMONIC DISTORTION
+ NOISE vs OUTPUT AMPLITUDE
1
V_S = ±18V
R_L = 2kΩ
f = 1kHz
THD < 0.01%
OPA134 – 11.7Vrms
OP176 – 11.1Vrms
0.1
0.010
OPA134
OP176
OPA134
0.001
Baseline
0.0005
0.1
1
Output Amplitude (Vrms)
10 20
0.01
0.001
0.0001
0.00001
HARMONIC DISTORTION + NOISE vs FREQUENCY
2nd Harmonic
3rd Harmonic
R L ^{= 600Ω}
R L ^{= 2kΩ}
0.000001
20
V_O = 1Vrms
100
1k
Frequency (Hz)
10k 20k
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
100
Voltage Noise
10
Current Noise
1
1
10
100
1k
10k
100k
1M
Frequency (Hz)
VOLTAGE NOISE vs SOURCE RESISTANCE
1k
OP176+
100
Resistor
10
1
0.1
10
OPA134+
Resistor
Resistor Noise
Only
V_n (total) = √(i_nR_S)² + e_n2 + 4kTR_S
100
1k
10k 100k
1M
10M
Source Resistance (Ω)
INPUT-REFERRED NOISE VOLTAGE
vs NOISE BANDWIDTH
100
R_S = 20Ω
10
Peak-to-Peak
1
RMS
0.1
1
10
100
1k
10k
Noise Bandwidth (Hz)
100k
®
OPA134/2134/4134
4