Datasheet

LTC6406
4
6406fc
DC ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full
operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
+
= 3V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
= 1.25V, V
SHDN
= open,
R
BAL
= 100kΩ, R
I
= 150Ω, R
F
= 150Ω (0.1% resistors), C
F
= 1.8pF (see Figure 1) unless otherwise noted. V
S
is defi ned as (V
+
– V
–
).
V
OUTCM
is defi ned as (V
+OUT
+ V
–OUT
)/2. V
ICM
is defi ned as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is defi ned as (V
+OUT
– V
–OUT
).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
SC
Output Short-Circuit Current, +OUT/–OUT Pins (Note 10)
l
±35 ±55 mA
A
VOL
Large-Signal Open Loop Voltage Gain 90 dB
V
S
Supply Voltage Range
l
2.7 3.5 V
I
S
Supply Current
l
18 22 mA
I
SHDN
Supply Current in Shutdown V
SHDN
= 0V
l
300 500 μA
R
SHDN
SHDN Pull-Up Resistor V
SHDN
= 0V to 0.5V
l
60 100 140
kΩ
V
IL
SHDN Input Logic Low
l
0.4 0.7 V
V
IH
SHDN Input Logic High
l
2.25 2.55 V
t
ON
Turn-On Time 200 ns
t
OFF
Turn-Off Time 50 ns
AC ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full
operating temperature range, otherwise specifi cations are at T
A
= 25°C. V
+
= 3V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
= 1.25V, V
SHDN
= open, R
I
= 150Ω, R
F
= 150Ω (0.1% resistors), C
F
= 1.8pF, R
LOAD
= 400Ω (see Figure 2) unless otherwise noted. V
S
is defi ned as (V
+
– V
–
). V
ICM
is defi ned as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is defi ned as (V
+OUT
– V
–OUT
).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SR Slew Rate
Differential Output 630 V/μS
GBW Gain-Bandwidth Product
f
TEST
= 30MHz 3 GHz
f
–3dB
–3dB Frequency (See Figure 2)
l
500 800 MHz
50MHz Distortion
Differential Input, V
OUTDIFF
= 2V
P-P
(Note 13)
V
OCM
= 1.25V, V
S
= 3V
2nd Harmonic
3rd Harmonic
l
–77
–65 –55
dBc
dBc
V
OCM
= 1.25V, V
S
= 3V, R
LOAD
= 800Ω
2nd Harmonic
3rd Harmonic
–85
–72
dBc
dBc
V
OCM
= 1.25V, V
S
= 3V, R
LOAD
= 800Ω,
R
I
= R
F
= 500Ω
2nd Harmonic
3rd Harmonic
–80
–69
dBc
dBc
50MHz Distortion
Single-Ended Input, V
OUTDIFF
= 2V
P-P
(Note 13)
V
OCM
= 1.25V, V
S
= 3V, R
LOAD
= 800Ω,
R
I
= R
F
= 500Ω
2nd Harmonic
3rd Harmonic
–69
–73
dBc
dBc
3rd-Order IMD at 49.5MHz, 50.5MHz V
OUTDIFF
= 2V
P-P
Envelope,
R
LOAD
= 800Ω
–65 dBc
OIP3 at 50MHz (Note 11)
R
LOAD
= 800Ω
36.5 dBm
t
S
Settling Time V
OUTDIFF
= 2V Step
1% Settling
0.1% Settling
7
11
ns
ns
NF Noise Figure at 50MHz
Shunt-Terminated to 50Ω, R
S
= 50Ω
Z
IN
= 200Ω (R
I
= 100Ω, R
F
= 300Ω)
14.1
7.5
dB
dB