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LT1711IMS8 Datasheet PDF : 12 Pages
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LT1711/LT1712
ELECTRICAL CHARACTERISTICS
The q denotes specifications
V+ = 5V, V– = – 5V, VCM = 0V,
which apply over the full operating temperature range, otherwise specifications
VLATCH = 0.8V, CLOAD = 10pF, VOVERDRIVE = 20mV, unless otherwise specified.
are
at
TA
=
25°C.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
AV
Small-Signal Voltage Gain
VOH
Output Voltage Swing HIGH (Note 8)
IOUT = 1mA, VOVERDRIVE = 50mV
IOUT = 10mA, VOVERDRIVE = 50mV
VOL
Output Voltage Swing LOW (Note 8)
IOUT = – 1mA, VOVERDRIVE = 50mV
IOUT = – 10mA, VOVERDRIVE = 50mV
I+
Positive Supply Current (Per Comparator)
VOVERDRIVE = 1V
I–
Negative Supply Current (Per Comparator)
VOVERDRIVE = 1V
1
15
q 4.5
4.8
q 4.3
4.6
q
0.20
0.4
q
0.30
0.5
17
22
q
30
9
12
q
15
VIH
Latch Pin High Input Voltage
q 2.4
VIL
Latch Pin Low Input Voltage
IIL
Latch Pin Current
VLATCH = V+
q
0.8
q
15
tPD
Propagation Delay (Notes 6, 11)
∆VIN = 100mV, VOVERDRIVE = 20mV
∆VIN = 100mV, VOVERDRIVE = 20mV
q
∆VIN = 100mV, VOVERDRIVE = 5mV
4.5
6.0
8.5
5.5
∆tPD
Differential Propagation Delay (Notes 6, 11) ∆VIN = 100mV, VOVERDRIVE = 20mV
0.5
1.5
tr
Output Rise Time
10% to 90%
2
tf
Output Fall Time
90% to 10%
2
tLPD
Latch Propagation Delay (Note 7)
5
tSU
Latch Setup Time (Note 7)
1
tH
Latch Hold Time (Note 7)
0
tDPW
Minimum Latch Disable Pulse Width (Note 7)
5
fMAX
Maximum Toggle Frequency
VIN = 100mVP-P Sine Wave
100
tJITTER Output Timing Jitter
VIN = 630mVP-P (0dBm) Sine Wave, f = 30MHz
11
UNITS
V/mV
V
V
V
V
mA
mA
mA
mA
V
V
µA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
psRMS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LT1711C/LT1712C are guaranteed to meet specified
performance from 0°C to 70°C. They are designed, characterized and
expected to meet specified performance from – 40°C to 85°C but are not
tested or QA sampled at these temperatures. The LT1711I/LT1712I are
guaranteed to meet specified performance from –40°C to 85°C.
Note 3: The negative supply should not be greater than the ground pin
voltage and the maximum voltage across the positive and negative
supplies should not be greater than 12V.
Note 4: Input offset voltage (VOS) is measured with the LT1711/LT1712 in
a configuration that adds external hysteresis. It is defined as the average of
the two hysteresis trip points.
Note 5: Input bias current (IB) is defined as the average of the two input
currents.
Note 6: Propagation delay (tPD) is measured with the overdrive added to
the actual VOS. Differential propagation delay is defined as:
∆tPD = tPD+ – tPD–. Load capacitance is 10pF. Due to test system
requirements, the LT1711/LT1712 propagation delay is specified with a
1kΩ load to ground for ±5V supplies, or to mid-supply for 2.7V or 5V
single supplies.
Note 7: Latch propagation delay (tLPD) is the delay time for the output to
respond when the latch pin is deasserted. Latch setup time (tSU) is the
interval in which the input signal must remain stable prior to asserting the
latch signal. Latch hold time (tH) is the interval after the latch is asserted in
which the input signal must remain stable. Latch disable pulse width
(tDPW) is the width of the negative pulse on the latch enable pin that
latches in new data on the data inputs.
Note 8: Output voltage swings are characterized and tested at V+ = 5V and
V– = 0V. They are guaranteed by design and correlation to meet these
specifications at V– = – 5V.
Note 9: The input voltage range is tested under the more demanding
conditions of V+ = 5V and V– = –5V. The LT1711/LT1712 are guaranteed
by design and correlation to meet these specifications at V– = 0V.
Note 10: The LT1711/LT1712 voltage gain is tested at V+ = 5V and
V– = –5V only. Voltage gain at single supply V+ = 5V and V+ = 2.7V is
guaranteed by design and correlation.
Note 11: The LT1711/LT1712 tPD is tested at V+ = 5V and 2.7V with
V– = 0V. Propagation delay at V+ = 5V, V– = –5V is guaranteed by design
and correlation.
Note 12: Care must be taken to make sure that the LT1711/LT1712 do not
exceed TJMAX when operating with ±5V supplies over the industrial
temperature range. TJMAX is not exceeded for DC inputs, but supply
current increases with switching frequency (see Typical Performance
Characteristics).
4
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