Overview
The AD7820LR is an analog To Digital Converter made by Analog Devices in a SOIC-20 package with 20 pins. -40℃~+85℃ 1 5V 8 Built-in External Flash Input buffer No Not supported SPI、I2C SOIC-20 Analog to Digital Converters (ADC) ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:AD7820LR, from EasyEDA) and its footprint (Package_SO:SOP-20_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7455544).
Symbol
Footprint
Parameters
11- ADC architecture
- Flash
- Clock/Oscillator
- Built-in
- Features
- Input buffer
- Interface
- SPI, I2C
- Operating Temperature
- -40℃~+85℃
- Programmable Gain
- Not supported
- Resolution (Bits)
- 8
- Voltage - Supply
- 5V
- Voltage Reference
- External
- differential input
- No
- number of channels
- 1
Order codes
1- AD7820LRLCSC C7455544
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | VIN | Unspecified |
| 2 | DB0 | Unspecified |
| 3 | DB1 | Unspecified |
| 4 | DB2 | Unspecified |
| 5 | DB3 | Unspecified |
| 6 | WR#/RDY | Unspecified |
| 7 | MODE | Unspecified |
| 8 | RD# | Unspecified |
| 9 | INT# | Unspecified |
| 10 | GND | Unspecified |
| 11 | VREF- | Unspecified |
| 12 | VREF+ | Unspecified |
| 13 | CS# | Unspecified |
| 14 | DB4 | Unspecified |
| 15 | DB5 | Unspecified |
| 16 | DB6 | Unspecified |
| 17 | DB7(MSB) | Unspecified |
| 18 | OFL# | Unspecified |
| 19 | NC | Unspecified |
| 20 | VDD | Unspecified |
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Is there a KiCad symbol and footprint for the AD7820LR?
Yes. The symbol is EasyEDA_Cloud:AD7820LR and the footprint Package_SO:SOP-20_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AD7820LR?
SOIC-20, with 20 pins. Its footprint is drawn on this page.
Where is the AD7820LR datasheet?
Analog Devices publishes it: the Datasheet link on this page opens it.
Where can I order the AD7820LR?
JLCPCB lists it as part C7455544, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AD7820LR?
Parts like it in the library: the AD7701BR-REEL by Analog Devices, the AD7821KR by Analog Devices, the LTC1290BISW by Analog Devices and the CA3306M96 by Renesas Electronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
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