LMH7322_14 Datasheet, PDF (4/33 Pages) Texas Instruments – Dual 700 ps High Speed Comparator with RSPECL Outputs

LMH7322
SNOSAU8H – MARCH 2007 – REVISED MAY 2011
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12 AC Electrical Characteristics (continued)
Unless otherwise specified, all limits are specified for T_J = 25°C, V_CCI = V_CCO = 12V, V_EE = 0V, R_L = 50Ω to V_CCO-2V, V_CM =
300 mV, R_HYS = none.Boldface limits apply at temperature extremes.
Symbol
Parameter
Conditions
Min
(1)
Typ
(2)
Max
(1)
Units
t_jitter-RMS
t_PDH
t_OD-disp
t_SR-disp
t_CM-disp
Δt_PDLH
Δt_PDHL
t_r
t_f
t_sLE
t_hLE
t_{PD_LE}
RMS Random Jitter
Propagation Delay.
(see Figure 19 application note)
Input SR = Constant
V_IN Startvalue = V_REF −100 mV
Input Overdrive Dispersion
Input Slew Rate Dispersion
Input Common Mode Dispersion
Q to Q Time Skew |t_PDH – t_PDL|
Q to Q Time Skew |t_PDL – t_PDH|
Output Rise Time (20%–80%)
Output Fall Time (20%–80%)
Latch Setup Time
Latch Hold Time
Latch to Output Delay Time
Overdrive = ±100 mV; C_L = 2 pF
Center Frequency = 140 MHz
Bandwidth = 10 Hz–20 MHz
Overdrive 20 mV
Overdrive 50 mV
Overdrive 100 mV
Overdrive 1V
t_PDH @ Overdrive 20 mV ↔ 100 mV
t_PDH @ Overdrive 100 mV ↔ 1V
0.1 V/ns to 1 V/ns; Overdrive = 100
mV
SR = 1 V/ns; Overdrive = 100 mV;
0V ≤ V_CM ≤ V_CCI- 1.5V
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
702
fs
818
ps
723
708
ps
703
110
ps
5
48
ps
43
ps
24
ps
45
ps
155
ps
155
ps
77
ps
33
ps
944
ps
5V DC Electrical Characteristics
Unless otherwise specified, all limits are specified for T_J = 25°C, V_CCI = V_CCO = 5V, V_EE = 0V, R_L = 50Ω to V_CCO-2V, V_CM = 300
mV, R_HYS = 1 kΩ.Boldface limits apply at temperature extremes.
Symbol
Parameter
Conditions
Min
Typ
(1)
(2)
Max
(1)
Units
INPUT CHARACTERISTICS
I_B
Input Bias Current
I_OS
TC I_OS
V_OS
TC V_OS
V_RI
V_RID
CMRR
Input Offset Current
Input Offset Current TC
Input Offset Voltage
Input Offset Voltage TC
Input Voltage Range
Input Differential Voltage Range
Common Mode Rejection Ratio
PSRR
Power Supply Rejection Ratio
A_V
Hyst
Active Gain
Hysteresis
LATCH ENABLE CHARACTERISTICS
I_B-LE
V_OS-LE
V_RI-LE
Latch Enable Bias Current
Latch Enable Offset Voltage
Latch Enable Voltage Range
V_IN Differential = 0V; R_HYS = 8 kΩ
Biased at V_CM
V_IN Differential = 0V
V_IN Differential = 0V
for CMRR ≥ 50 dB
0V ≤ V_CM ≤ V_CC1−0.2
V_HYS = V_(HYS⁺₎ -V_(HYS^-₎ , R_HYS = 0Ω
−5
−250
−8
V_EE−0.2
−1
25
−2.6
40
0.3
−2
12
80
80
53
50
µA
+250
+8
V_CCI−1.5
+1
75
nA
nA/°C
mV
µV/°C
V
V
dB
dB
dB
mV
Biased at RSPECL Level
Biased at RSPECL Level
for CMRR ≥ 50 dB
3
10
µA
+5
mV
V_EE+1.4
V_CCO-0.8 V
(1) All limits are specified by testing or statistical analysis.
(2) 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
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