Rainbow Electronics MAX7491 - Manual (Page 3)

MAX7490/MAX7491
Dual Universal Switched-Capacitor Filters
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Clock Input Low 0.5 V
Clock Duty Cycle 50 ± 5 %
SHDN AND EXTCLK
Input High V IH V DD - 0.5 V
Input Low V IL 0.5 V
Input Leakage Current V INPUT = 0 to V DD
±0.4 ±10 µA
POWER REQUIREMENTS
Supply Voltage V DD 4.5 5.5 V
Power-Supply Current I DD
No external load, mode 1, R1 = R3 = 50k Ω,
R2 = 10k Ω, Q = 5
3.5 4.0 mA
Shutdown Current I SHDN
SHDN = GND 1 µA
INTERNAL OP AMPS CHARACTERISTICS
Output Short-Circuit Current ±18 mA
DC Open-Loop Gain R L
≥ 10kΩ, C
L
≤ 50pF 130 dB
Gain Bandwidth Product GBW R L
≥ 10kΩ, C
L
≤ 50pF 7 MHz
Slew Rate SR R L
≥ 10kΩ, C
L
≤ 50pF 6.4 V/ µs
ELECTRICAL CHARACTERISTICS—MAX7490 (continued)
(V DD = EXTCLK = +5V, f CLK = 625kHz, T A = T MIN to T MAX , 10k Ω || 50pF load to V
DD /2 at LP_, BP_, and N_/HP_, SHDN = V DD , 0.1µF
from COM to GND, 50% duty-cycle clock input, COM = V DD /2. Typical values are at T A = +25°C, unless otherwise noted.) (Note 1)