MCP3422A0-E/SN: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD	Operating	2.7		5.5	V
Input Voltage Range	VIN	Differential	-0.3		VDD+0.3	V
Conversion Time (18-bit)	tconv	Continuous Conv. Mode, 1x Gain		169.4		ms
Output Data Rate	ODR	18-bit, 1x Gain		5.96		SPS
Input Bias Current	IB	VIN = 0V	-50		50	nA
Input Offset Voltage	VOS	VIN = 0V	-5	0	5	μV
Common Mode Rejection Ratio	CMRR	DC to 50/60Hz	85		105	dB
Power-down Current	Ipd	VDD = 5V		0.1		μA

Power Supply Connection:
- Connect the supply voltage (VDD) between 2.7V and 5.5V.
- Ensure a stable power supply to avoid data corruption.
Input Signal Connection:
- Connect differential input signals within the range of -0.3V to VDD + 0.3V.
- Ensure that the input bias current is considered in signal source impedance design.
Configuration via SPI Interface:
- Use the SPI interface to configure the device settings such as gain, data rate, and operating mode.
- Refer to the datasheet for specific command sequences.
Conversion Timing:
- For 18-bit conversions with 1x gain, expect a conversion time of approximately 169.4ms.
- Adjust your application timing accordingly to read data after the conversion is complete.
Output Reading:
- Read the output data through the SPI interface once the conversion is complete.
- Check for any error flags or conditions before processing the data.
Power Management:
- Utilize the power-down mode to reduce current consumption when the ADC is not in use.
- Monitor the power-down current to ensure it remains below 0.1μA at VDD = 5V.
Common Mode Rejection:
- The device offers a common mode rejection ratio (CMRR) from 85dB to 105dB for frequencies up to 50/60Hz.
- This helps in rejecting noise common to both inputs.

Ensure all connections and configurations are correctly set according to these specifications and instructions for optimal performance.

(For reference only)