Datasheet

SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
10
Small-Signal Overshoot (%)
Load Capacitance (pF)
100 1k 10k
60
50
40
30
20
10
0
G = +1V/V, R
L
= 100kW
G = –1V/V, R
FB
= 5kW
G = –1V/V, R
FB
= 100kW
PERCENT OVERSHOOT vs LOAD CAPACITANCE
Overshoot (%)
Load Capacitance (pF)
10 100 1k 10k
60
50
40
30
20
10
0
G = ±5V/V, R
FB
= 100kW
SMALL-SIGNAL STEP RESPONSE
G = +1V/V, R
L
= 100kW, C
L
= 100pF
20mV/div
2µs/div
LARGE-SIGNAL STEP RESPONSE
G = +1V/V, R
L
= 100kW, C
L
= 100pF
500mV/div
10µs/div
INPUT CURRENT AND VOLTAGE NOISE
SPECTRAL DENSITY vs FREQUENCY
1
Voltage Noise (nV/ Hz)√
Current Noise (fA Hz)√
Frequency (Hz)
10 100 1k 10k 100k
10k
1k
100
10
1k
100
10
1
V
N
I
N
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
10
Total Harmonic Distortion + Noise (%)
Frequency (Hz)
100 1k 10k
100k
1.000
0.100
0.010
0.001
OPA2348-Q1
OPA4348-Q1
SBOS465A –JANUARY 2009–REVISED MARCH 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
T
A
= 25°C, R
L
= 100 kΩ connected to V
S
/2, V
OUT
= V
S
/2 (unless otherwise noted)
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