Details

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BUY ADS8028IRTJR https://www.utsource.net/itm/p/7357631.html
12 Bit Analog to Digital Converter 8 Input 1 SAR 20-QFN (4x4)

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD		2.7		5.5	V
Analog Input Voltage	VIN		0		VDD	V
Conversion Time	tCONV	Full-scale step		1.9		μs
Power Consumption	IDD	All channels powered down		6		μA
	IDD	Normal operation		3.8		mA
Differential Nonlinearity	DNL		-1		+1	LSB
Integral Nonlinearity	INL		-1		+1	LSB
Signal-to-Noise Ratio	SNR	@ 2.7V supply, 200 kSPS		84		dB
Total Harmonic Distortion	THD	@ 2.7V supply, 200 kSPS		-98		dBc
Operating Temperature	Toper		-40		85	°C

Instructions for ADS8028IRTJR

1. Power Supply Configuration:

   • Connect the VDD pin to a stable power supply between 2.7V and 5.5V.
   • Ensure proper decoupling capacitors are placed close to the VDD pin to minimize noise.

2. Analog Input Configuration:

   • The analog input voltage range is from 0V to VDD. Ensure that the input signal does not exceed these limits to avoid damage or inaccurate readings.

3. Conversion Timing:

   • The conversion time for a full-scale step is typically 1.9 μs. Plan your sampling rate accordingly to ensure accurate conversions.

4. Power Management:

   • For low-power applications, use the power-down feature to reduce current consumption to around 6 μA when all channels are powered down.
   • In normal operation, the device consumes approximately 3.8 mA.

5. Linearity and Accuracy:

   • The device features differential nonlinearity (DNL) and integral nonlinearity (INL) within ±1 LSB, ensuring high accuracy in analog-to-digital conversion.

6. Performance Metrics:

   • At a 2.7V supply and 200 kSPS, expect a signal-to-noise ratio (SNR) of 84 dB and a total harmonic distortion (THD) of -98 dBc, indicating excellent performance for various applications.

7. Temperature Range:

   • The operating temperature range is from -40°C to +85°C, suitable for a wide range of environmental conditions.

8. Handling Precautions:

   • Handle the device with care to prevent electrostatic discharge (ESD), which can damage sensitive components.
   • Follow recommended PCB layout guidelines for optimal performance and reliability.

(For reference only)