OPA336-EP Datasheet, PDF (8/15 Pages) Texas Instruments – SINGLE-SUPPLY MICRO-POWER CMOS OPERATIONAL AMPLIFIER MicroAmplifier™ SERIES

OPA336-EP
SINGLE-SUPPLY MICRO-POWER CMOS OPERATIONAL AMPLIFIER
MicroAmplifier™ SERIES
SCES658 – JUNE 2006
APPLICATION INFORMATION
www.ti.com
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.
Operating Voltage
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.
Input Voltage
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).
6V
V_OUT
0V
Figure 1. No Phase Inversion
With Inputs Greater Than Power-Supply Voltage
I_OVERLOAD
10 mA max
V_IN
5 kΩ
+5 V
V_OUT
Figure 2. Input Current Protection
for Voltages Exceeding Power-Supply Voltage
8
Submit Documentation Feedback