Datasheet
LT1818/LT1819
5
18189fb
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 9) V
S
= 5V, 0V; V
CM
= 2.5V, R
L
to 2.5V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
A
VOL
Large-Signal Voltage Gain V
OUT
= 1.5V to 3.5V, R
L
= 500Ω
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
1.0
0.7
0.6
2 V/mV
V/mV
V/mV
V
OUT
= 1.5V to 3.5V, R
L
= 100Ω
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
0.7
0.5
0.4
4 V/mV
V/mV
V/mV
Channel Separation V
OUT
= 1.5V to 3.5V, LT1819
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
81
80
79
100 dB
dB
dB
V
OUT
Output Swing (Positive) R
L
= 500Ω, 30mV Overdrive
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
3.9
3.8
3.7
4.2 V
V
V
R
L
= 100Ω, 30mV Overdrive
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
3.7
3.6
3.5
4V
V
V
Output Swing (Negative) R
L
= 500Ω, 30mV Overdrive
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
0.8 1.1
1.2
1.3
V
V
V
R
L
= 100Ω, 30mV Overdrive
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
1 1.3
1.4
1.5
V
V
V
I
OUT
Output Current V
OUT
= 1.5V or 3.5V, 30mV Overdrive
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
±30
±25
±20
±50 mA
mA
mA
I
SC
Output Short-Circuit Current V
OUT
= 2.5V, 1V Overdrive (Note 3)
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
±80
±70
±50
±140 mA
mA
mA
SR Slew Rate A
V
= 1 1000 V/μs
A
V
= –1 (Note 5)
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
450
375
300
800 V/μs
V/μs
V/μs
FPBW Full-Power Bandwidth 2V
P-P
(Note 6) 125 MHz
GBW Gain-Bandwidth Product f = 4MHz, R
L
= 500Ω
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
240
230
220
360 MHz
MHz
MHz
t
r
, t
f
Rise Time, Fall Time A
V
= 1, 10% to 90%, 0.1V Step 0.7 ns
t
PD
Propagation Delay A
V
= 1, 50% to 50%, 0.1V Step 1.1 ns
OS Overshoot A
V
= 1, 0.1V, R
L
= 100Ω 20 %
HD Harmonic Distortion HD2, A
V
= 2, f = 5MHz, V
OUT
= 2V
P-P
, R
L
= 500Ω
HD3, A
V
= 2, f = 5MHz, V
OUT
= 2V
P-P
, R
L
= 500Ω
–72
–74
dBc
dBc
dG Differential Gain A
V
= 2, R
L
= 150Ω 0.07 %
dP Differential Phase A
V
= 2, R
L
= 150Ω 0.07 DEG
I
S
Supply Current Per Amplifi er
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
8.5 10
13
14
mA
mA
mA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Differential inputs of ±6V are appropriate for transient operation
only, such as during slewing. Large sustained differential inputs can cause
excessive power dissipation and may damage the part.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefi nitely.
Note 4: Input offset voltage is pulse tested and is exclusive of warm-up
drift.
ELECTRICAL CHARACTERISTICS