Skip to the content
PCBKitNew board
INA121UA on a board, in 3D

INA121UA

Texas Instruments

-40℃~+85℃ 0.5% 0.7V/us 1 1V/V~10000V/V 300uV 4pA External resistor gain、Overvoltage protection SOIC-8 Instrumentation Amplifiers ROHS

Extended
DatasheetJLCPCBLCSCti/INA121UA
Category
Instrumentation Amplifiers
Package
SOIC-8
Pins
8

Overview

The INA121UA is an instrumentation Amplifier made by Texas Instruments in a SOIC-8 package with 8 pins. -40℃~+85℃ 0.5% 0.7V/us 1 1V/V~10000V/V 300uV 4pA External resistor gain、Overvoltage protection SOIC-8 Instrumentation Amplifiers ROHS.

PCBKit's library has its KiCad symbol (Operational Amplifiers:INA121, from CERN's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C1346467).

Symbol

-IN+INOVPOVP+--+A1A225k25kV+V-40k40k-+A340k40k21837465
Operational Amplifiers:INA121From CERN's library

Footprint

12345678
Package_SO:SOIC-8_3.9x4.9mm_P1.27mmFrom KiCad's library

Parameters

8
Features
External resistor gain, Overvoltage Protection
Gain Error
0.5%
Ib - Input Bias Current
4pA
Number of Channels
Single-channel
Operating Temperature
-40℃~+85℃
Slew Rate
0.7V/us
Voltage Gain
1V/V~10000V/V
Vos - Input Offset Voltage
300uV

Order codes

1

Pinout

8
The pins of the INA121UA
PinNameType
1RGInput
2VIN-Input
3VIN+Input
4V-Power in
5REFInput
6VOOutput
7V+Power in
8RGPassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/ti/INA121UA" title="INA121UA in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/ti/INA121UA.jpg" alt="INA121UA" width="1200" height="900">
A picture that opens the part, for a README
[![INA121UA](https://pcbkit.io/embed/parts/ti/INA121UA.jpg?size=s)](https://pcbkit.io/parts/ti/INA121UA)

Questions

Is there a KiCad symbol and footprint for the INA121UA?

Yes. The symbol is Operational Amplifiers:INA121 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 INA121UA?

SOIC-8, with 8 pins. Its footprint is drawn on this page.

Where is the INA121UA datasheet?

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

Where can I order the INA121UA?

JLCPCB lists it as part C1346467, with 0 in stock; the sellers' links on this page open their listings.

What can replace the INA121UA?

Parts like it in the library: the INA128UA/2K5 by Texas Instruments, the INA821ID by Texas Instruments, the AD623ARZ-R7 by Analog Devices and the INA826AID by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8