Details

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Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VDD	2.7	-	5.5	V	Operating supply voltage range
Supply Current	IDD	-	600	-	μA	Typical supply current at 3.3V, 1 kSPS
Analog Input Range	VIN	-	-	-	V	±VREF/2 (single-ended), ±VREF (differential)
Reference Voltage	VREF	1.65	-	4.096	V	External reference input voltage range
Output Data Rate	ODR	1	-	8	kSPS	Output data rate range
Resolution	RES	-	24	-	bits	Effective resolution
INL	INL	-	±10	-	LSB	Integral nonlinearity
DNL	DNL	-	±1	-	LSB	Differential nonlinearity
SNR	SNR	-	110	-	dB	Signal-to-noise ratio at 1 kSPS
THD	THD	-	-100	-	dB	Total harmonic distortion at 1 kSPS
Power-Down Mode Current	IDD	-	1	-	μA	Current consumption in power-down mode
Temperature Range	Toper	-40	-	85	°C	Operating temperature range
Package	-	-	-	-	24-pin TSSOP	Package type

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the specified range of 2.7V to 5.5V.
   • Connect a decoupling capacitor (0.1μF) close to the VDD pin to filter out noise.

2. Reference Voltage:

   • The external reference voltage (VREF) should be within the range of 1.65V to 4.096V.
   • For optimal performance, use a stable and low-noise reference source.

3. Analog Inputs:

   • Single-ended inputs should be within the range of 0 to VREF.
   • Differential inputs should be within the range of -VREF to +VREF.
   • Ensure that the input signals do not exceed the specified limits to avoid damage or incorrect readings.

4. Output Data Rate:

   • Set the output data rate (ODR) according to the application requirements, ranging from 1 kSPS to 8 kSPS.
   • Higher data rates may increase power consumption and reduce SNR.

5. Configuration:

   • Use the configuration registers to set up the device parameters such as gain, input range, and data rate.
   • Refer to the datasheet for detailed register maps and configuration sequences.

6. Communication:

   • The ADS131A04IPBS supports SPI communication. Ensure the SPI settings (clock speed, mode) are compatible with the device.
   • Properly manage the chip select (CS) signal to avoid data corruption.

7. Power Management:

   • To reduce power consumption, use the power-down mode when the ADC is not in use.
   • Ensure the device is properly powered down and powered up to avoid transient issues.

8. Temperature Considerations:

   • Operate the device within the specified temperature range of -40°C to 85°C.
   • Monitor the temperature and ensure adequate cooling if operating in high-temperature environments.

9. Layout and Grounding:

   • Follow good PCB layout practices to minimize noise and interference.
   • Use a ground plane and keep analog and digital grounds separate to avoid ground loops.

10. Testing and Validation:

    • After setup, perform initial testing to verify the functionality and accuracy of the ADC.
    • Calibrate the ADC if necessary to achieve the desired performance.

For more detailed information, refer to the specific datasheet and application notes provided by the manufacturer.

(For reference only)