Details

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BUY AD8138ARZ https://www.utsource.net/itm/p/8416366.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating Range	3.0		5.5	V
Input Offset Voltage	Vos	Differential Mode	-1	0	+1	mV
Input Bias Current	Ib	Differential Inputs	-2	0	+2	nA
Differential Gain Error	DGE	Over Temperature	-0.05	0	+0.05	%
Differential Phase Error	DPE	Over Temperature	-0.05	0	+0.05	°
Common-Mode Rejection Ratio	CMRR	@ f = 0.1 kHz	86			dB
Power Supply Rejection Ratio	PSRR	@ f = 0.1 kHz	86			dB
Large Signal Bandwidth	BWL	RL = 1 kΩ, Vop-p = 2 V		170		MHz
Small Signal Bandwidth	BWS	RL = 1 kΩ, Vop-p = 20 mV		200		MHz
Slew Rate	SR			450		V/μs
Output Voltage Swing	Vosw	RL = 1 kΩ	±2.8			V

Instructions for AD8138ARZ

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the operating range of 3.0V to 5.5V.
   • Use a stable power supply to avoid noise and fluctuations that can affect performance.

2. Input Signals:

   • The input signals should be within the common-mode input voltage range.
   • For optimal performance, minimize input bias currents by using high impedance sources or buffer amplifiers.

3. Output Configuration:

   • Connect appropriate load resistors (RL) to achieve desired output voltage swing.
   • Ensure the output voltage swing does not exceed the supply rails by more than 0.2V to prevent distortion.

4. Gain and Phase Adjustments:

   • Use external components if necessary to fine-tune differential gain and phase errors to meet system requirements.

5. Grounding and Layout:

   • Pay close attention to grounding practices to reduce noise and improve stability.
   • Keep signal paths short and direct to minimize parasitic effects.

6. Thermal Considerations:

   • Ensure adequate heat dissipation, especially at higher operating frequencies and power levels.
   • Follow recommended PCB layout guidelines provided in the datasheet for thermal management.

7. Testing and Validation:

   • Verify all connections and settings before applying power.
   • Perform initial tests under controlled conditions to ensure the device operates within expected parameters.

(For reference only)