Datasheet

LMH6553
SNOSB07H –SEPTEMBER 2008–REVISED MARCH 2013 www.ti.com
V
S
= ±5V Electrical Characteristics
(1)
(continued)
Unless otherwise specified, all limits are ensured for T
A
= 25°C, V
S
= ±5V, A
V
= 1, V
CM
= 0V, V
CLAMP
= 3V, R
F
= R
G
= 275Ω,
R
L
= 200Ω, for single-ended in, differential out. Boldface limits apply at the temperature extremes.
Symbol Parameter Conditions Min
(2)
Typ
(3)
Max
(2)
Units
Output Performance
Output Voltage Level
(5)
Single-Ended Output −3.7 ±3.78 +3.7 V
I
OUT
Linear Output Current
(5)
V
OUT
= 0V ±100 ±120 mA
I
SC
Short Circuit Current One Output Shorted to Ground V
IN
= 2V ±150 mA
Single-Ended
(6)
Clamp Performance
V
CLAMP
V
CLAMP
Voltage Range Continuous Operation
(7)
V
CM
V
CM
+ V
2.0
V
CLAMP
Peak Voltage
(8)
V
CM
+
3.0
Default V
CLAMP
Voltage V
CLAMP
Floating 0.92 1.0 1.08 V
Upper Clamp Level Accuracy V
CLAMP
= 2V, V
CM
= 1.5V, V
O
= 2V, 100% −53 −40 +53
Overdrive
mV
Lower Clamp Level Accuracy V
CLAMP
= 2V, V
CM
= 1.5V, V
O
= 1V, 100% −30 −8 +30
Overdrive
Clamp Accuracy Temperature Drift −0.1 mV/°C
Clamp Pin Bias Current V
IN
= 0V, V
CLAMP(MIN)
= −3.1 V −200 −175
µA
V
IN
= 0V, V
CLAMP(MAX)
= +4.5V 150 175
Clamp Pin Bias Drift 0.3 µA/°C
Diff Amp Input Bias Shift Linear to Clamped Operation 60 µA
Clamp Pin Input Impedance 30 KΩ/pF
1
Clamp Pin Feedthrough f = 10 MHz −60 dB
Clamp Bandwidth 0.5V
DC
+ 40 mV
PP
, SE V
IN
= 2V 140 MHz
Clamp Slew Rate 100% Overdrive 64 V/µs
Clamp Overshoot V
IN
= 2V Step, A
V
= 2 V/V, V
CLAMP
= 0.5V, 125 mV
V
CM
= 0V, 100% Overdrive
Clamp Overshoot V
IN
= 2V Step, A
V
= 2 V/V, V
CLAMP
= 2V, 250 mV
V
CM
= 1.5V, 100% Overdrive
Clamp Overshoot Width
(9)
650 ps
Clamp Overdrive Recovery Time V
IN
= 2V Step, A
V
= 2 V/V, V
CLAMP
= 0.5V, 600 ps
V
CM
= 0V, 50% Output Crossing
Linearity Guardband
(10)
f = 75 MHz, V
OD
= 2 V
PP
, R
L
= 800, SFDR 22 mV
Down 3 dB
Output Common Mode Control Circuit
Common Mode Small Signal V
IN
+
= V
IN
−
= 0 220 MHz
Bandwidth
Slew Rate V
IN
+
= V
IN
−
= 0 340 V/μs
V
OSCM
Output Common Mode Error Common Mode, V
IN
= Float, V
CM
= 0 −25 1 25 mV
(5) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped
production material.
(6) Short circuit current should be limited in duration to no more than 10 seconds. See POWER DISSIPATION in Application Information for
more details.
(7) Exceeding limits could result in excessive device current.
(8) This parameter is ensured by design and/or characterization and is not tested in production. The condition of V
CLAMP
= 3V is not
intended for continuous operation; continuous operation with V
CLAMP
= 3V may incur permanent damage to the device.
(9) Clamp Overshoot Width is the duration of overshoot in a 100% overdrive condition.
(10) Linearity Guardband is defined for an output sinusoid (f = 75 MHz, V
OD
= 2 V
PP
). It is the difference between the V
CLAMP
level and the
peak output voltage where the SFDR is decreased by 3 dB.
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