
Note 2:
Defined as the DC offset shift when switching between input channels for a given output.
Note 3:
Voltage Gain Accuracy for MAX458 calculated as (VOUT - VIN) @ (VIN = +2V) - (VOUT - VIN) @ (VIN = -2V)
——————————––————————————
4
—
V
————————————————————
Note 4:
Voltage Gain Accuracy for MAX459 calculated as (VOUT/2 - VIN) @ (VIN = +1V) - (VOUT/2 - VIN) @ (VIN = -1V)
———————————————————————
2
—
V
——————————————————————
Note 5:
All logic levels are guaranteed over the range of VS = ±4.75V to ±5.25V.
Note 6:
Differential phase and gain measured with a 40 IRE (285.7mV), 3.58MHz sine wave superimposed on a linear ramp of 0 IRE
to 100 IRE (714.3mV). “The IRE scale is a linear scale for measuring, in arbitrary IRE units, the relative amplitudes of the var-
ious components of a television signal” (from the “Television Engineering Handbook”, edited by K. Blair Benson, McGraw
Hill). This system defines 100 IRE as reference white, 0 IRE as the blanking level, and -40 IRE as the sync peak. The equip-
ment used for the test signal generated 714.3mV (100 IRE) as reference white and -285.7mV (-40 IRE) as sync. The modu-
lation used was 285.7mV (40 IRE), which conforms to the EIA color signal standards.
Note 7:
For MAX458, step input from +2V to 0V; for MAX459, step input from +1V to 0V. All unused channels grounded and all
unused amplifiers disabled.
Note 8:
Test input channel programmed to an output and grounded through a 75
resistor. Adjacent input is programmed to an
adjacent output and driven by a 10MHz, 4Vp-p sine wave.
Note 9:
Same as Note 6 above, except driven input and output are not adjacent to test input/output.
Note 10: All inputs but the test input are driven by a 10MHz 4Vp-p sine wave. All outputs except the test output are connected to driven inputs.
Note 11: Same as Note 9 above, except with test channel programmed off.
MAX458/MAX459
8x4 Video Crosspoint Switches with Buffers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +5V, VEE = -5V, -2V
≤ VIN ≤ +2V, output load resistor (RL) = 150, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.)
ISOURCE = 400A (Note 5)
(Note 11)
(Note 3)
(Note 10)
(Note 3)
(Note 9)
(Note 8)
See Typical Operating Characteristics
To 0.1% of final value (Note 7)
f = 10kHz
ISINK = 700A (Note 5)
MAX458
MAX459
CONDITIONS
dB
-60
All-Hostile Off Isolation
dB
-55
All-Hostile Crosstalk
dB
-65
Non-Adjacent Channel Crosstalk
dB
-65
Adjacent Channel Crosstalk
mVp-p
100
Switching Transient Glitch
ns
50
tCPD
Channel Switching Propagation Delay
ns
60
tCSW
Channel Switching Time
ns
120
tAON
Amplifier Enable Time
V
4.0
VOH
Logic Output High Voltage
A
10
IIL
A
10
IIH
Logic Input High Current
Logic Input Low Current
ns
100
tAOFF
Amplifier Disable Time
ns
40
tS
Settling Time
nV/
√Hz
20
en
Input Noise Density
V
0.5
VOL
Logic Output Low Voltage
%
0.01
DG
Differential Gain Error (Note 6)
0.13
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX458
MAX459
degrees
0.05
DG
Differential Phase Error (Note 6)
0.14
MAX458
V/s
200
SR
Slew Rate
150
Positive transition
Negative transition
MAX459
300
250
Positive transition
Negative transition
MAX458, RL = 75
MHz
100
BW
Bandwidth (-3dB)
90
MAX459, RL = 150
DYNAMIC SPECIFICATIONS