LMH7220_14 Datasheet, PDF (4/34 Pages) Texas Instruments – LMH7220 High Speed Comparator with LVDS Output

LMH7220
SNOSAL3E – SEPTEMBER 2006 – REVISED MAY 2013
www.ti.com
+12V 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 @
860
1080
50% Output Swing
Mb/s
t_{jitter_RMS} RMS-Random Jitter
Overdrive = 100 mV; C_L = 2 pF
Center Frequency = 70 MHz
Bandwidth = 10 Hz – 20 MHz
4.29
ps
t_PDLH
t_OD-disp
Propagation Delay
t_PDLH = (t_PDH + t_PDL ) / 2
(see Figure 21 application
information)
Input SR = Constant
V_ID start value = −100 mV
Input Overdrive Dispersion
Overdrive 20 mV
Overdrive 50 mV
Overdrive 100 mV
Overdrive 1V
@Overdrive 20 - 100 mV
@Overdrive 100 mV - 1V
3.56
2.98
2.7
7
ns
2.24
0.86
ns
0.46
t_SR-disp Input Slew Rate Dispersion
0.05 V/ns to 1 V/ns
Overdrive 100 mV
0.24
ns
t_CM-disp
Δt_PDLH
Δt_PDHL
t_r
t_f
Input Common Mode dispersion
Q to Q Time Skew
| t_PDH - t_PDL | ⁽⁴⁾
Q to Q Time Skew
| t_PDL - t_PDH | ⁽⁴⁾
Output Rise Time (20% - 80%) ⁽⁵⁾
Output Fall Time (20% - 80%) ⁽⁵⁾
SR = 4 V/ns; Overdrive 100 mV
V_CM = 0 to 10V
Overdrive = 100 mV; C_L = 2 pF
Overdrive = 100 mV; C_L = 2 pF
Overdrive = 100 mV; C_L = 2 pF
Overdrive = 100 mV; C_L = 2 pF
0.55
ns
0
ns
0.06
ns
0.56
ns
0.49
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.
4
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