Details

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BUY AD620AR https://www.utsource.net/itm/p/11251799.html

Parameter	Symbol	Min	Typical	Max	Units	Conditions
Supply Voltage	VCC	2.3	-	36	V	-
Quiescent Current	IQ	-	1.3	-	mA	VCC = ±5V, G = 100
Input Offset Voltage	VOS	-	50	100	μV	VCC = ±5V, G = 100, TA = 25°C
Input Bias Current	IB	-	1	2	nA	VCC = ±5V, G = 100, TA = 25°C
Input Offset Current	IIO	-	0.02	0.1	nA	VCC = ±5V, G = 100, TA = 25°C
Common-Mode Rejection Ratio (CMRR)	CMRR	80	-	110	dB	VCC = ±5V, G = 100, f = 60 Hz, TA = 25°C
Power-Supply Rejection Ratio (PSRR)	PSRR	80	-	110	dB	VCC = ±5V, G = 100, f = 60 Hz, TA = 25°C
Gain Error	ΔG	-	0.01	0.05	%	VCC = ±5V, G = 100, TA = 25°C
Gain Nonlinearity	NL	-	0.0005	0.001	%	VCC = ±5V, G = 100, TA = 25°C
Bandwidth (Small Signal)	f-3dB	-	10	20	kHz	VCC = ±5V, G = 100, TA = 25°C
Slew Rate	SR	-	0.4	0.6	V/μs	VCC = ±5V, G = 100, TA = 25°C
Output Swing	VOUT	-	±13	-	V	VCC = ±15V, G = 100, RL = 2kΩ, TA = 25°C
Operating Temperature Range	TA	-40	-	85	°C	-

Instructions for Using AD620AR:

1. Power Supply:

   • The AD620AR can operate with a single supply (2.3V to 36V) or dual supplies (±1.15V to ±18V).
   • Ensure the power supply voltage is within the specified range to avoid damage to the device.

2. Gain Setting:

   • The gain is set using an external resistor, R_G, connected between pins 1 and 8.
   • The gain (G) is calculated using the formula: G = 1 + (49.4 kΩ / R_G).
   • For example, to set a gain of 100, use R_G = 494 Ω.

3. Input Connections:

   • Connect the differential input signals to pins 2 (IN-) and 3 (IN+).
   • Ensure the common-mode voltage (V_CM) is within the common-mode input voltage range, which is typically V_CC/2 ± 1V.

4. Output Connections:

   • The output signal is available at pin 6 (OUT).
   • The output swing is typically ±13V for a ±15V supply and a 2kΩ load.

5. Biasing and Decoupling:

   • Use decoupling capacitors (typically 0.1 μF and 10 μF) close to the power supply pins (pins 7 and 4) to reduce noise and ensure stable operation.
   • If necessary, use a biasing network to set the common-mode voltage at the inputs.

6. Temperature Considerations:

   • The operating temperature range is from -40°C to 85°C.
   • Ensure the device is operated within this range to maintain performance specifications.

7. Handling Precautions:

   • The AD620AR is sensitive to electrostatic discharge (ESD). Handle the device with proper ESD precautions.
   • Avoid exposing the device to excessive mechanical stress or thermal shock.

8. Testing and Troubleshooting:

   • Before connecting the AD620AR to your circuit, verify that all power supply voltages and input signals are within the specified ranges.
   • Use an oscilloscope to monitor the output and input signals to ensure proper operation.
   • If the output is not as expected, check the gain resistor, input connections, and power supply voltages.

By following these instructions, you can ensure optimal performance and reliability of the AD620AR in your application.

(For reference only)