Datasheet

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SBOS313B − AUGUST 2004 − REVISED NOVEMBER 2004
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7
TYPICAL CHARACTERISTICS: V
S
= +2.7V to +5.5V (continued)
All specifications at T
A
= +25°C, and R
L
= 10kΩ connected to V
S
/2, unless otherwise noted.
SMALL−SIGNAL STEP RESPONSE
(with or without pull−down)
50mV/div
Time (100ns/div)
50k
Ω
10k
Ω
C
F
V
P
200kHz (C
F
= 16pF)
1MHz
(C
F
= 3pF)
V
P
=0Vor
−
5V
OPA381
LARGE−SIGNAL STEP RESPONSE
(with pull−down)
1V/div
Time (100ns/div)
50k
Ω
10kΩ
3pF
−5V
OPA381
LARGE−SIGNAL STEP RESPONSE
(without pull−down)
Time (100ns/div)
1V/div
50k
Ω
10k
Ω
C
F
1MHz
(C
F
=3pF)
200kHz
(C
F
=16pF)
OPA381
OVERLOAD RECOVERY
Time (ns)
6
4
2
0
0.8
0
V
OUT
(V/div)I
IN
(mA/div)
0 100 200 300 400 500 600 700 800 900 1000
V
OUT
20kΩ
10kΩ
I
IN
V
P
40pF
250µA
I
IN
Nonlinear
Operation
Linear
Operation
OPA381
OPA2381
V
P
=0Vor
−
5V
OPA381
1000
100
10
1
INPUT VOLTAGE NOISE SPECTRAL DENSITY
Frequency (Hz)
Input Voltage Noise (nV/
√
(Hz)
10 100 100k 1M10k1k 10M
CHANNEL SEPARATION vs INPUT FREQUENCY
Input Frequency (Hz)
160
140
120
100
80
60
40
20
0
−
20
−
40
Channel Separation (dB)
10 100 1k 10k 100k 1M 10M 100M
OPA2381