

Overview
The AD623AN is an instrumentation Amplifier made by Analog Devices in a PDIP-8 package with 8 pins. -40℃~+85℃ 0.35% 0.3V/us 1 17nA 1V/V~1000V/V 25uV External resistor gain PDIP-8 Instrumentation Amplifiers.
PCBKit's library has its KiCad symbol (Amplifier_Instrumentation:AD623AN, from KiCad's library) and its footprint (Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C7453395). 5 open-source boards in 4 repositories on GitHub use it.
Symbol
Footprint
Parameters
8- Features
- External resistor gain
- Gain Error
- 0.35%
- Ib - Input Bias Current
- 17nA
- Number of Channels
- 1
- Operating Temperature
- -40℃~+85℃
- Slew Rate
- 0.3V/us
- Voltage Gain
- 1V/V~1000V/V
- Vos - Input Offset Voltage
- 25uV
Order codes
1- AD623ANLCSC C7453395
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | Rg | Passive |
| 2 | - | Input |
| 3 | + | Input |
| 4 | Vs- | Power in |
| 5 | Ref | Passive |
| 6 | — | Output |
| 7 | Vs+ | Power in |
| 8 | Rg | Passive |
Open-source boards using it
All 5- 2 layers190 × 30 mm

- 2 layers100 × 100 mm

Emg
Pai-88/emg-robotic-hand
Single-channel surface-EMG front end (AD623 + driven-right-leg) on a Raspberry Pi Pico. Board fabricated and telemetry verified on hardware; analog front end and on-body EMG still in bring-up.
40 parts1MIT - 2 layers60 × 44 mm

Sensorboard
ninkaninus/TeamTurboTurtle
This is the repository of Team Turbo Turtle. A group made for the second semester project in robotics technology at Southern University Of Denmark.
30 parts - 2 layers66.5 × 53 mm

ECG Project Josh
TallesSantosCUBoulder/ECEN4532_DSPLab_Spring2026_ECG_Project
This signal of the heartbeat, in the form of the "PQRST" complex as seen with Figure 1, is what needs to be detected in order to find important information about a patient's heart.
35 partsMIT - 2 layers90 × 70.5 mm

Ecg project
TallesSantosCUBoulder/ECEN4532_DSPLab_Spring2026_ECG_Project
This signal of the heartbeat, in the form of the "PQRST" complex as seen with Figure 1, is what needs to be detected in order to find important information about a patient's heart.
29 partsMIT
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/adi/AD623AN" title="AD623AN in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/adi/AD623AN.jpg" alt="AD623AN" width="1200" height="900">[](https://pcbkit.io/parts/adi/AD623AN)Questions
Is there a KiCad symbol and footprint for the AD623AN?
Yes. The symbol is Amplifier_Instrumentation:AD623AN and the footprint Package_DIP:DIP-8_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the AD623AN?
PDIP-8, with 8 pins. Its footprint is drawn on this page.
Where is the AD623AN datasheet?
Analog Devices publishes it: the Datasheet link on this page opens it.
Where can I order the AD623AN?
JLCPCB lists it as part C7453395, with 0 in stock; the sellers' links on this page open their listings.
What can replace the AD623AN?
Parts like it in the library: the INA128PA by Texas Instruments, the INA129P by Texas Instruments, the INA131AP by Texas Instruments and the AD620ANZ by Analog Devices. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the AD623AN?
5 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8INA128PA
PDIP-8-40℃~+85℃ 1 120dB 15mA 500nV/℃ 50uV 5nA 700uA 7V/us PDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersINA129P
PDIP-8-18V~-2.25V、2.25V~18V -40℃~+85℃ 0.01% 1 1.3MHz 10uV 12us 1V/V~10000V/V 1nA 20nA 4.5V~36V 4V/us 500nV/℃ 50pA/℃ 6mA 700uA 86dB 8nV/√Hz@1kHz External resistor gain、Overvoltage protection PDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersINA131AP
PDIP-8-18V~-2.25V、2.25V~18V -40℃~+85℃ 0.7V/us 1 100us 110dB 12nV/√Hz@1kHz 250nV/℃ 2nA 300uA 36V 3mA 500pA 50uV 8pA/℃ PDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersAD620ANZ
DIP-8-18V~-2.3V、2.3V~18V -40℃~+85℃ 0.75V/us 1 1.3mA 1.5pA/℃ 100dB 15us 18mA 1MHz 1nA 300nV/℃ 30uV 36V 500pA 80dB 9nV/√Hz@1kHz DIP-8 Instrumentation Amplifiers ROHSAnalog DevicesInstrumentation AmplifiersLT1102CN8#PBF
PDIP-8-15V~15V -40℃~+85℃ 0.12% 1 100dB 20nV/√Hz@1000Hz 220pA 2uV/℃ 3.3mA 30V/us 35MHz 3us 40pA 4pA/℃ 5.6mA 600uV 98dB Internally set gain、Decompensated stable PDIP-8 Instrumentation Amplifiers ROHSAnalog DevicesInstrumentation AmplifiersINA114BP
PDIP-8-40℃~+85℃ 1 115dB 1V/us 250nV/℃ 2nA 3mA 50uV 5mA PDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersINA114AP
DIP-8-40℃~+85℃ 0.6V/us 1 115dB 250nV/℃ 2nA 3mA 50uV 5mA External resistor gain、Overvoltage protection DIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersAD621ANZ
PDIP-8-18V~-2.3V、2.3V~18V -40℃~+85℃ 0.15% 1 1.2V/us 1.3mA 1.5pA/℃ 120dB 125uV 12us 1nA 1uV/℃ 500pA 93dB 9nV/√Hz@1kHz External resistor gain、ESD protection、Internally set gain PDIP-8 Instrumentation Amplifiers ROHSAnalog DevicesInstrumentation Amplifiers