Details

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BUY ADR291GR https://www.utsource.net/itm/p/1104522.html
Low Noise Micropower Precision Voltage References

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN		2.7		5.5	V
Output Voltage	VOUT	No Load	1.24			V
Quiescent Current	IQ	VIN = 5V		60		渭A
Dropout Voltage	VD	ILOAD = 10mA		230		mV
Load Regulation		1mA to 100mA		0.05		%
Line Regulation		VIN: 2.7V to 5.5V		0.05		%
Temperature Coefficient		-40掳C to +125掳C		35		ppm/掳C
PSRR (Power Supply Rejection Ratio)		f = 1kHz		78		dB
Operating Temperature			-40		125	掳C

Instructions for Using ADR291GR:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.

2. Output Voltage (VOUT):

   • The device provides a stable output voltage of 1.24V when no load is applied.

3. Quiescent Current (IQ):

   • At an input voltage of 5V, the typical quiescent current is 60渭A.

4. Dropout Voltage (VD):

   • When the load current is 10mA, the dropout voltage is typically 230mV.

5. Load and Line Regulation:

   • For load regulation from 1mA to 100mA, the change in output voltage is less than 0.05%.
   • For line regulation over the input voltage range from 2.7V to 5.5V, the change in output voltage is less than 0.05%.

6. Temperature Coefficient:

   • Over the temperature range from -40掳C to +125掳C, the output voltage changes by approximately 35ppm/掳C.

7. PSRR (Power Supply Rejection Ratio):

   • At a frequency of 1kHz, the PSRR is typically 78dB.

8. Operating Temperature Range:

   • The device can operate effectively between -40掳C and +125掳C.

9. Application Considerations:

   • Use appropriate bypass capacitors on both input and output to ensure stability.
   • Place the device close to the load to minimize noise and improve performance.

(For reference only)