component
INA219AIDCNR
Public Unreviewedby Ray
Texas Instruments Current Sense Amplifiers, SOT-23-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA219AIDCNR
Texas Instruments · Current Sense Amplifiers · SOT-23-8
INA219AIDCNR from Texas Instruments, in a SOT-23-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN+ | input | Positive differential shunt voltage input. Connect to the positive side of the external current-sense shunt resistor. Common-mode range 0 V to 26 V, differential range ±26 V (absolute max), input bias current ~20 uA in active mode. |
| 2 | IN- | input | Negative differential shunt voltage input. Connect to the negative side of the shunt resistor; bus voltage is measured from this pin to ground. Input impedance ~20 kOhm |
| 3 | GND | power_in | Device ground reference for the analog and digital circuitry. |
| 4 | VS | power_in | Power supply input, 3 V to 5.5 V (absolute max 6 V). Typical supply current ~1 mA. |
| 5 | SCL | input | I2C/SMBus serial clock input (open-drain, requires external pull-up). Logic thresholds: VIH >= 0.7VS, VIL <= 0.3VS. |
| 6 | SDA | bidirectional | I2C/SMBus serial data line (open-drain, requires external pull-up). Open-drain sink capability up to 10 mA. |
| 7 | A0 | input | I2C slave-address select pin 0. Tie to GND, VS, SDA, or SCL to encode 4 of the 16 programmable device addresses (see Table 1). |
| 8 | A1 | input | I2C slave-address select pin 1. Tie to GND, VS, SDA, or SCL together with A0 to program one of 16 device addresses (see Table 1). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
INA219AIDCNRINA219AIDCNTINA219AIDCNRIDR
CAD (KiCad official)
- Symbol:
INA219AIDCNR - Footprint:
Package_TO_SOT_SMD:SOT-23-8 - 3D model: SOT-23-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (38 pp, sha256
2c973858ed829073, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).