Details

---

BUY LM239A https://www.utsource.net/itm/p/12609191.html

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	VCC	2.0	-	36.0	V
Differential Input Voltage	VID	-0.3	-	VCC + 0.3	V
Output Short-Circuit Duration	tSC	-	-	Indefinite	s
Quiescent Current	IQ	-	0.8	-	mA
Output Low Voltage	VOL	-	0.05	-	V
Output High Voltage	VOH	-	VCC - 1.5	-	V
Input Offset Voltage	VOS	-	2.0	-	mV
Input Bias Current	IB	-	25	-	nA
Slew Rate	SR	-	0.3	-	V/渭s
Common-Mode Rejection Ratio	CMRR	-	85	-	dB
Power Dissipation	PD	-	-	625	mW

Instructions for Using LM239A

1. Power Supply:

   • The LM239A can operate from a single supply (2.0V to 36.0V) or dual supplies (卤1.0V to 卤18.0V).
   • Ensure the supply voltage is within the specified range to avoid damage.

2. Input Signals:

   • The differential input voltage should not exceed the supply voltage plus 0.3V.
   • Avoid connecting inputs to voltages outside the common-mode range to prevent damage.

3. Output Configuration:

   • The output can be connected to a pull-up resistor for open-collector operation.
   • The output low voltage is typically around 0.05V, and the output high voltage is V_CC - 1.5V.

4. Quiescent Current:

   • The quiescent current is typically 0.8mA. This value should be considered when designing power-efficient circuits.

5. Input Protection:

   • The inputs have built-in protection diodes, but it is recommended to use external clamping diodes for signals that may exceed the supply rails.

6. Output Short-Circuit:

   • The output can withstand short-circuits indefinitely, but prolonged short-circuits may cause excessive power dissipation and overheating.

7. Thermal Considerations:

   • The maximum power dissipation is 625mW. Ensure proper heat sinking if the device is expected to dissipate significant power.

8. Layout Considerations:

   • Keep power and ground traces wide and short to minimize noise and improve stability.
   • Use bypass capacitors (e.g., 0.1渭F) close to the power pins to filter out high-frequency noise.

9. Stability:

   • The LM239A is internally compensated for stability, but external compensation may be required for specific applications.

10. Storage and Handling:

    • Store the device in a dry, static-free environment.
    • Handle the device with ESD precautions to avoid damaging the sensitive internal components.

(For reference only)