

Overview
The OPA227U is an operational Amplifier made by Texas Instruments in a SOIC-8 package with 8 pins. -18V~18V -2.5V~3.7V -40℃~+85℃ 10nA 138dB 2 2.3V/us 3.5nV/√Hz@10Hz 600nV/℃ 75uV Built-in compensation SOIC-8 Precision Op Amps ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:OPA227U, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 30 are in stock at JLCPCB (part C56063). 3 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
11- Common Mode Rejection Ratio(CMRR)
- 138dB
- Dual Supply
- -18V~18V
- Features
- Built-in compensation
- Ib - Input Bias Current
- 10nA
- Input Offset Voltage Drift(Vos TC)
- 600nV/℃
- Input Voltage Noise Density
- 3.5nV/√Hz@10Hz
- Number of Channels
- 2
- Operating Temperature
- -40℃~+85℃
- Single supply
- -2.5V~3.7V
- Slew Rate
- 2.3V/us
- Vos - Input Offset Voltage
- 75uV
Order codes
1- OPA227ULCSC C56063
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | Trim | Unspecified |
| 2 | -IN | Unspecified |
| 3 | +IN | Unspecified |
| 4 | V- | Unspecified |
| 5 | NC | Unspecified |
| 6 | OUTPUT | Unspecified |
| 7 | V+ | Unspecified |
| 8 | Trim | Unspecified |
Open-source boards using it
All 3- 2 layers

- 2 layers109.9 × 56.5 mm

NoisEE project
thenoviceoof/noisEE
Find gain functions for a family of pink-ish functions.
123 partsApache-2.0 - 2 layers144.8 × 88.9 mm

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Is there a KiCad symbol and footprint for the OPA227U?
Yes. The symbol is EasyEDA_Cloud:OPA227U and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the OPA227U?
SOIC-8, with 8 pins. Its footprint is drawn on this page.
Where is the OPA227U datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the OPA227U?
JLCPCB lists it as part C56063, with 30 in stock; the sellers' links on this page open their listings.
What can replace the OPA227U?
Parts like it in the library: the LTC358XS8/R8 by Linearin, the LTC8632XS8/R8 by Linearin, the LTC8832XS8/R8 by Linearin and the MCP6022-E/SN by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the OPA227U?
3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
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