Datasheet
LT1818/LT1819
4
18189fb
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. (Note 9) V
S
= ±5V, V
CM
= 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
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
270
260
250
400 MHz
MHz
MHz
t
r
, t
f
Rise Time, Fall Time A
V
= 1, 10% to 90%, 0.1V Step 0.6 ns
t
PD
Propagation Delay A
V
= 1, 50% to 50%, 0.1V Step 1.0 ns
OS Overshoot A
V
= 1, 0.1V, R
L
= 100Ω 20 %
t
S
Settling Time A
V
= –1, 0.1%, 5V 10 ns
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
–85
–89
dBc
dBc
dG Differential Gain A
V
= 2, R
L
= 150Ω 0.07 %
dP Differential Phase A
V
= 2, R
L
= 150Ω 0.02 DEG
I
S
Supply Current Per Amplifi er
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
910
13
14
mA
mA
mA
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
V
OS
Input Offset Voltage (Note 4)
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
0.4 2.0
2.5
3.5
mV
mV
mV
ΔV
OS
/ΔT
Input Offset Voltage Drift (Note 7)
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
10
10
15
30
μV/°C
μV/°C
I
OS
Input Offset Current
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
60 800
1000
1200
nA
nA
nA
I
B
Input Bias Current
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
–2.4 ±8
±10
±12
μA
μA
μA
e
n
Input Noise Voltage Density f = 10kHz 6 nV/√Hz
i
n
Input Noise Current Density f = 10kHz 1.4 pA/√Hz
R
IN
Input Resistance V
CM
= V
–
+ 1.5V to V
+
– 1.5V
Differential
1.5 5
750
MΩ
kΩ
C
IN
Input Capacitance 1.5 pF
V
CM
Input Voltage Range (Positive) Guaranteed by CMRR
T
A
= –40°C to 85°C
l
3.5
3.5
4.2 V
V
Input Voltage Range (Negative) Guaranteed by CMRR
T
A
= –40°C to 85°C
l
0.8 1.5
1.5
V
V
CMRR Common Mode Rejection Ratio V
CM
= 1.5V to 3.5V
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
73
71
70
82 dB
dB
dB
Minimum Supply Voltage Guaranteed by PSRR
T
A
= –40°C to 85°C
l
±1.25 ±2
±2
V
V
PSRR Power Supply Rejection Ratio V
S
= 4V to 11V
T
A
= 0°C to 70°C
T
A
= –40°C to 85°C
l
l
78
76
75
97 dB
dB
dB