Details

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BUY AD7858LBR-REEL https://www.utsource.net/itm/p/7361241.html
12 Bit Analog to Digital Converter 4, 8 Input 1 SAR 24-SOIC

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Supply Voltage	VDD	4.75	5.0	5.25	V
Supply Current	IDD	-	25	-	mA	Active mode
Input Voltage Range	VIN	0	-	VDD	V
Analog Input Bandwidth	fIN	-	10	-	MHz
Conversion Time	tCONV	-	13	-	μs	12-bit conversion
Output Data Rate	fODR	-	76.9	-	kSPS	12-bit conversion
Differential Nonlinearity	DNL	-1	0	+1	LSB
Integral Nonlinearity	INL	-2	0	+2	LSB
Signal-to-Noise Ratio	SNR	-	72	-	dB	@ fIN = 10 kHz
Total Harmonic Distortion	THD	-	-85	-	dB	@ fIN = 10 kHz
Power-down Current	IDD-PD	-	10	-	μA	Power-down mode
Operating Temperature	Toper	-40	-	85	°C
Storage Temperature	Tstg	-65	-	150	°C

Instructions for Use

1. Power Supply:

   • Connect the supply voltage (VDD) to a stable 5V power source.
   • Ensure the supply current (IDD) does not exceed 25mA during active operation.

2. Analog Input:

   • Apply the analog input signal (VIN) within the range of 0 to VDD.
   • The maximum input frequency (fIN) should be kept below 10 MHz for optimal performance.

3. Conversion:

   • The conversion time (tCONV) is approximately 13 μs for a 12-bit conversion.
   • The output data rate (fODR) can reach up to 76.9 kSPS.

4. Linearity:

   • The differential nonlinearity (DNL) and integral nonlinearity (INL) are specified to be within ±1 LSB and ±2 LSB, respectively.

5. Signal Quality:

   • For best signal-to-noise ratio (SNR) and total harmonic distortion (THD), operate at frequencies around 10 kHz.

6. Power Management:

   • To reduce power consumption, use the power-down mode where the current (IDD-PD) drops to approximately 10 μA.

7. Temperature:

   • Operate the device within the temperature range of -40°C to 85°C.
   • Store the device in an environment between -65°C and 150°C.

8. Handling:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).
   • Follow standard ESD protection guidelines when handling the component.

(For reference only)