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ADS820U on a board, in 3D

ADS820U

Texas Instruments

-40℃~+85℃ 0.2LSB 1 10 20MHz 4.75V~5.25V SOIC-28-300mil Analog to Digital Converters (ADC) ROHS

Extended
DatasheetJLCPCBLCSCti/ADS820U
Category
Analog To Digital Converters (ADC)
Package
SOIC-28-300mil
Pins
2

Overview

The ADS820U is an analog To Digital Converter made by Texas Instruments in a SOIC-28-300mil package with 28 pins. -40℃~+85℃ 0.2LSB 1 10 20MHz 4.75V~5.25V SOIC-28-300mil Analog to Digital Converters (ADC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ADS821U, from EasyEDA) and its footprint (Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1542888).

Symbol

GND1Bit1(MSB)2Bit23Bit34Bit45Bit56Bit67Bit78Bit89Bit910Bit10(LSB)11DNC12DNC13GND14+VS15CLK16+VS17OE#18MSBI19+VS20REFB21CM22REFT23+VS24GND25IN26IN#27GND28
EasyEDA_Cloud:ADS821UFrom EasyEDA

Footprint

12345678910111213141516171819202122232425262728
Package_SO:SOIC-28W_7.5x17.9mm_P1.27mmFrom KiCad's library

Parameters

14
ADC architecture
Pipeline
Clock Frequency
10kHz~20MHz
Clock/Oscillator
External
DNL (LSB)
0.2LSB
Integral non - linearity
0.2LSB
Operating Temperature
-40℃~+85℃
Quiescent Current (Iq)
39mA
Resolution (Bits)
10
Sampling Rate
20MHz
Signal-to-Noise Ratio
60.5dB
Voltage - Supply
4.75V~5.25V
Voltage Reference
Built-in
differential input
Yes
number of channels
1

Order codes

1

Pinout

28
The pins of the ADS820U
PinNameType
1GNDUnspecified
2Bit1(MSB)Unspecified
3Bit2Unspecified
4Bit3Unspecified
5Bit4Unspecified
6Bit5Unspecified
7Bit6Unspecified
8Bit7Unspecified
9Bit8Unspecified
10Bit9Unspecified
11Bit10(LSB)Unspecified
12DNCUnspecified
13DNCUnspecified
14GNDUnspecified
15+VSUnspecified
16CLKUnspecified
17+VSUnspecified
18OE#Unspecified
19MSBIUnspecified
20+VSUnspecified
21REFBUnspecified
22CMUnspecified
23REFTUnspecified
24+VSUnspecified
25GNDUnspecified
26INUnspecified
27IN#Unspecified
28GNDUnspecified

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A picture that opens the part, for a README
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Questions

Is there a KiCad symbol and footprint for the ADS820U?

Yes. The symbol is EasyEDA_Cloud:ADS821U and the footprint Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the ADS820U?

SOIC-28-300mil, with 28 pins. Its footprint is drawn on this page.

Where is the ADS820U datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the ADS820U?

JLCPCB lists it as part C1542888, with 0 in stock; the sellers' links on this page open their listings.

What can replace the ADS820U?

Parts like it in the library: the TLC7135CDW by Texas Instruments, the AD9221ARZ-REEL by Analog Devices, the AD1674BRZ by Analog Devices and the AD7708BRZ-REEL7 by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8