Datasheet

LMH7220
SNOSAL3E –SEPTEMBER 2006–REVISED MAY 2013 www.ti.com
+5V AC ELECTRICAL CHARACTERISTICS
Unless otherwise specified, all limits specified for T
J
= 25°C, V
CM
= 300 mV, −50 mV < V
ID
< +50 mV and R
L
= 100Ω.
Boldface limits apply at the temperature extremes.
(1)(2)
Symbol Parameter Conditions Min
(1)
Typ
(3)
Max
(1)
Units
TR Toggle Rate Overdrive = ±50 mV; C
L
= 2 pF @ 750 940 Mb/s
50% Output Swing
t
jitter_RMS
RMS-Random Jitter Overdrive = 100 mV; C
L
= 2 pF 4.44 ps
Center Frequency = 70 MHz
Bandwidth = 10 Hz – 20 MHz
t
PDLH
Propagation Delay Overdrive 20 mV 3.63
t
PDLH
= (t
PDH
+ t
PDL
) / 2
Overdrive 50 mV 3.09
(see Figure 21 application
ns
Overdrive 100 mV 2.9 7
information)
Input SR = Constant
Overdrive 1V 2.41
V
ID
start value = -100mV
t
OD
-disp Input Overdrive Dispersion @Overdrive 20 - 100 mV 0.79
ns
@Overdrive 100 mV - 1V 0.43
t
SR
-disp Input Slew Rate Dispersion 0.05 V/ns to 1 V/ns 0.20 ns
Overdrive 100 mV
t
CM
-disp Input Common Mode Dispersion SR = 4 V/ns; Overdrive 100 mV 0.21 ns
V
CM
= 0 to 3V
Δt
PDLH
Q to Q Time Skew Overdrive = 100 mV; C
L
= 2 pF 0.09 ns
| t
PDH
- t
PDL
|
(4)
Δt
PDHL
Q to Q Time Skew Overdrive = 100 mV; C
L
= 2 pF 0.07 ns
| t
PDL
- t
PDH
|
(4)
t
r
Output Rise Time (20% - 80%)
(5)
Overdrive = 100 mV; C
L
= 2 pF 0.59 ns
t
f
Output Fall Time (20% - 80%)
(5)
Overdrive = 100 mV; C
L
= 2 pF 0.55 ns
(1) All limits are specified by testing or statistical analysis.
(2) Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very
limited self-heating of the device such that T
J
= T
A
. No specification of parametric performance is indicated in the electrical tables under
conditions of internal self heating where T
J
> T
A
. See APPLICATION INFORMATION for information on temperature de-rating of this
device.
(3) 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.
(4) Propagation Delay Skew, Δt
PD
, is defined as the average of Δt
PDLH
and Δt
PDHL
.
(5) The rise or fall time is the average of the Q and Q rise or fall time.
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