Datasheet

OPA684
7
SBOS219D
www.ti.com
100
10
1
Frequency (Hz)
100 10M1k 10k 100k 1M
INPUT VOLTAGE AND CURRENT NOISE DENSITY
Voltage Noise (nV/√Hz)
Current Noise (pA/√Hz)
Noninverting Current Noise
9.4pA/√Hz
Voltage Noise
3.7nV/√Hz
Inverting Current Noise
17pA/√Hz
2-TONE, 3RD-ORDER
INTERMODULATION DISTORTION
–8 –7 –6 –5 –4 –3 –2 –1453210678
Power at Load (each tone, dBm)
3rd-Order Spurious Level (dBc)
–50
–60
–70
–80
–90
50Ω
+5V
–5V
50Ω
50Ω
P
I
P
O
1kΩ
1kΩ
OPA684
20MHz
10MHz
5MHz
1MHz
6
5
4
3
2
1
0
Time (ms)
01624 86121410
DISABLE TIME
V
DIS
V
OUT
V
OUT
and V
DIS
(V)
V
IN
= 1V
DC
See Figure 1
–40
–50
–60
–70
–80
–90
–100
Frequency (MHz)
0.1 100110
DISABLED FEEDTHRU
Feedthru (dB)
G = +2
V
DIS
= 0
See Figure 1
60
50
40
30
20
10
0
C
LOAD
(pF)
1 10010
R
S
vs C
LOAD
R
S
(Ω)
0.5dB Peaking
9
6
3
0
–3
–6
Frequency (MHz)
1 20010 100
SMALL-SIGNAL BANDWIDTH vs C
LOAD
Normalized Gain (dB)
10pF
100pF
47pF
22pF
R
S
V
O
+5V
–5V
50Ω
250Ω C
L
V
I
1.1kΩ
1.1kΩ
1kΩ
OPA684
TYPICAL CHARACTERISTICS: V
S
= ±5V (Cont.)
At T
A
= +25°C, G = +2, R
F
= 1kΩ, R
L
= 100Ω, unless otherwise noted.