MAX498 Просмотр технического описания (PDF) - Maxim Integrated
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MAX498 Datasheet PDF : 16 Pages
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Quad/Triple, SPDT, RGB Switches
with 250MHz Video Buffer Amplifiers
AC ELECTRICAL CHARACTERISTICS
(VCC = +5V, VEE = -5V, VIN__ = 0V, RL = 100Ω, LE = EN = CS = 0V, TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Small-Signal, -3dB Bandwidth
BW-3dB VIN ≤ 100mVp-p
250
±0.1dB Gain Flatness
VIN ≤ 100mVp-p
70
Full-Power, -3dB Bandwidth
FPBW VOUT = ±2V
135
Slew Rate
SR VOUT = 4V step
1250
Settling Time
ts
0.1%, VOUT = 4V step
12
Input Voltage Noise Density
f = 100kHz
7.8
Input Current Noise Density
f = 100kHz
2.6
Total Harmonic Distortion
THD f = 10MHz
-50
Spurious-Free Dynamic Range
SFDR fC = 3MHz
-66
Adjacent-Channel Crosstalk
f = 10MHz (Note 2)
90
All-Hostile Crosstalk
f = 10MHz (Note 3)
62
Off-Isolation
EN = 1, f = 10MHz (Note 4)
81
Differential Gain
Diff Gain f = 3.58MHz (Note 5), RL = 150Ω
0.03
Differential Phase
Diff Phase f = 3.58MHz (Note 5), RL = 150Ω
0.06
MAX
UNITS
MHz
MHz
MHz
V/µs
ns
nV/√Hz
pA/√Hz
dB
dBc
dB
dB
dB
%
degrees
TIMING CHARACTERISTICS
(VCC = +5V, VEE = -5V, VIN_ _ = 0V, RL = 150Ω, LE = EN = CS = 0V, TA = 0°C to +70°C. Typical values are at TA = +25°C, unless
otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
A0/EN to CS Setup Time
A0/EN to CS Hold Time
CS Pulse Width
tSU LE = high (Note 6)
tH
LE = high (Note 6)
tCS (Note 6)
8
ns
4
ns
15
ns
Channel-Switching
Propagation Delay
tPD (Note 7)
20
ns
Channel-Switching Time
Channel-Switching Transient
Enable/Disable Switching
Transient
Amplifier-Disable Time
Amplifier-Enable Time
tSW (Note 8)
VINA = VINB = 0V
tOFF
tON
VINA = VINB = 0V
(Note 9)
(Note 10)
Positive
Negative
Positive
Negative
3
ns
70
mV
50
10
mV
150
16
ns
24
ns
Note 2: Test-channel input grounded through a 50Ω resistor. Adjacent channel driven to a 2Vp-p output with a 10MHz sine wave
(Figure 9).
Note 3: Same as Note 2, except all channels but the test channel are driven to a 2Vp-p output with a 10MHz sine wave (Figure 9).
Note 4: Test-channel input connected to a 2Vp-p sine wave at 10MHz. The test channel’s output is measured with the outputs
disabled (Figure 9).
Note 5: Input test signal is a 3.58MHz sine wave of 40IRE amplitude, superimposed on a 0IRE to 100IRE linear ramp (Figure 10).
Note 6: Guaranteed by design.
Note 7: VINA = +1V, VINB = -1V, delay from CS to 10% of VOUT.
Note 8: VINA = +1V, VINB = -1V, delay from CS to 10% of VOUT.
Note 9: Delay from EN to 90% of VOUT.
Note 10: Delay from EN to 10% of VOUT.
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