Rainbow Electronics MAX4334 - Manual (Page 13)

MAX4330–MAX4334
Single/Dual/Quad, Low-Power, Single-Supply,
Rail-to-Rail I/O Op Amps with Shutdown
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Do not three-state SHDN. Due to the output leakage
currents of three-state devices and the small internal
pull-up current for SHDN, three-stating this pin could
result in indeterminate logic levels, and could adversely
affect op-amp operation.
The logic threshold for SHDN is always referred to V EE ,
not GND. When using dual supplies, pull SHDN to V EE
to place the op amp in shutdown mode.
Power Supplies and Layout
The MAX4330–MAX4334 operate from a single +2.3V
to +6.5V power supply, or from dual ±1.15V to ±3.25V
supplies. For single-supply operation, bypass the
power supply with a 0.1µF capacitor to ground (V
EE ).
For dual supplies, bypass both V CC and V EE with their
own set of capacitors to ground.
Good layout technique helps optimize performance by
decreasing the amount of stray capacitance at the op
amp’s inputs and outputs. To decrease stray capaci-
tance, minimize trace lengths by placing external com-
ponents close to the op amp’s pins.
Figure 9. Power-Up/Down Supply Current
V CC 1V/div
100 µ A/div I CC
5 µ s/div
Figure 11. Shutdown Enable/Disable Supply Current
SHDN 1V/div
100 µ A/div I CC
5 µ s/div
Figure 10. Shutdown Output Voltage Enable/Disable
SHDN 1V/div
500mV/div OUT
5 µ s/div