www.ti.com

APPLICATION INFORMATION

Operating Voltage

Input Voltage

6V

0V

V

OUT

5 k

Ω

10 mA max

+5 V

V

IN

V

OUT

I

OVERLOAD

OPA336-EP

SINGLE-SUPPLY MICRO-POWER CMOS OPERATIONAL AMPLIFIER

MicroAmplifier™ SERIES

SCES658 – JUNE 2006

The OPA336 operational amplifier is fabricated with a state-of-the-art 0.6-micron CMOS process. The device is

unity-gain stable and suitable for a wide range of general-purpose applications. Power-supply pins should be

bypassed with 0.01-

µF ceramic capacitors. The OPA336 is protected against reverse battery voltages.

The OPA336 can operate from a 2.1-V to 5.5-V single supply voltage, with excellent performance. Most behavior

remains unchanged throughout the full operating voltage range. Parameters that vary significantly with operating

voltage are shown in the typical characteristics. The OPA336 is fully specified for operation from

2.3 V to 5.5 V; a single limit applies over the supply range. In addition, many parameters are ensured over the

specified temperature range, –55

°C to 125°C.

The input common-mode range of the OPA336 extends from (V–) – 0.2 V to (V+) – 1 V. For normal operation,

inputs should be limited to this range. The absolute maximum input voltage is 300 mV beyond the supplies.

Thus, inputs greater than the input common-mode range, but less than maximum input voltage, while not valid,

will not cause any damage to the operational amplifier. Furthermore, the inputs may go beyond the power

supplies without phase inversion (see Figure 1), unlike some other operational amplifiers.

Normally, input bias current is approximately 1 pA. However, input voltages exceeding the power supplies can

cause excessive current to flow in or out of the input pins. Momentary voltages greater than the power supply

can be tolerated, as long as the current on the input pins is limited to 10 mA. This is easily accomplished with an

input resistor (see Figure 2).

Figure 1. No Phase Inversion

With Inputs Greater Than Power-Supply Voltage

Figure 2. Input Current Protection

for Voltages Exceeding Power-Supply Voltage

8

Submit Documentation Feedback