Datasheet

LTC6405
4
6405fb
For more information www.linear.com/6405
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
A
VOL
Large-Signal Open Loop Voltage Gain 90 dB
V
S
Supply Voltage Range
l
4.5 5.25 V
I
S
Supply Current
l
18 23 mA
I
SHDN
Supply Current in Shutdown V
SHDN
= 0V
l
0.4 1 mA
R
SHDN
SHDN Pull-Up Resistor V
SHDN
= 0V to 0.5V
l
30 50 70 kΩ
V
IL
SHDN Input Logic Low
l
1.25 1.8 V
V
IH
SHDN Input Logic High
l
2 2.55 V
t
ON
Turn-On Time 200 ns
t
OFF
Turn-Off Time 50 ns
ac electrical characteristics
The l denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 5V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
= 2.5V, V
SHDN
= open,
R
LOAD
= 400Ω, circuit component values in Figure 2 used, unless otherwise noted. V
S
is defined as (V
+
– V
–
). V
ICM
is defined as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is defined as (V
+OUT
– V
–OUT
).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SR Slew Rate
Differential Output 690 V/µS
GBW Gain-Bandwidth Product
f
TEST
= 27MHz 2.7 GHz
f
–3dB
–3dB Frequency (See Figure 2)
QFN Package
MSOP Package
500
400
800
750
MHz
MHz
50MHz Distortion
Differential Input, V
OUTDIFF
= 2V
P-P
(Note 13)
V
OCM
= 2.5V, V
S
= 5V
2nd Harmonic
3rd Harmonic
l
–80
–64 –53
dBc
dBc
V
OCM
= 2.5V, V
S
= 5V, R
LOAD
= 800Ω
2nd Harmonic
3rd Harmonic
–82
–66
dBc
dBc
V
OCM
= 2.5V, V
S
= 5V, R
LOAD
= 800Ω,
R
I
= R
F
= 499Ω
2nd Harmonic
3rd Harmonic
–82
–64
dBc
dBc
50MHz Distortion
Single-Ended Input, V
OUTDIFF
= 2V
P-P
(Note 13)
V
OCM
= 2.5V, V
S
= 5V, R
LOAD
= 800Ω,
R
I
= R
F
= 499Ω
2nd Harmonic
3rd Harmonic
–72
–77
dBc
dBc
3rd-Order IMD at 49.5MHz, 50.5MHz V
OUTDIFF
= 2V
P-P
Envelope,
R
LOAD
= 800Ω
–63 dBc
Equivalent OIP3 at 50MHz (Note 11) R
LOAD
= 800Ω 35.5 dBm
t
S
Settling Time V
OUTDIFF
= 2V Step
1% Settling
0.1% Settling
6
11
ns
ns
NF Noise Figure at 50MHz Shunt-Terminated to 50Ω, R
S
= 50Ω
Z
IN
= 200Ω (R
I
= 100Ω, R
F
= 300Ω)
14.4
7.5
dB
dB
Dc electrical characteristics
The l denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 5V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
= 2.5V, V
SHDN
= open,
circuit component values in Figure 1 used, unless otherwise noted. V
S
is defined as (V
+
– V
–
). V
OUTCM
is defined as (V
+OUT
+ V
–OUT
)/2.
V
ICM
is defined as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is defined as (V
+OUT
– V
–OUT
).