# AMC3301DWER

**Texas Instruments** · Isolation Amplifiers · SOIC-16

AMC3301DWER from Texas Instruments, in a SOIC-16. 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 | DCDC_OUT | power_out | High-side output of the isolated DC/DC converter. Connect this pin to the HLDO_IN pin. Provides the raw isolated supply that feeds the on-chip high-side LDO. |
| 2 | DCDC_HGND | power_in | High-side power ground reference for the isolated DC/DC converter. Connect this pin to the HGND pin. |
| 3 | HLDO_IN | power_in | Input of the high-side LDO. Connect this pin to the DCDC_OUT pin. Requires decoupling per Power Supply Recommendations. |
| 4 | NC | unconnected | No internal connection. Connect this pin to HGND or leave this pin unconnected. |
| 5 | HLDO_OUT | power_out | Output of the high-side LDO. Provides the regulated high-side supply used by the isolated input amplifier; requires decoupling capacitor to HGND. |
| 6 | INP | input | Noninverting analog input. Either INP or INN must have a DC current path to HGND to define the common-mode input voltage. Differential full-scale input range ±250 mV; clipping at ±320 mV. |
| 7 | INN | input | Inverting analog input. Either INP or INN must have a DC current path to HGND to define the common-mode input voltage. |
| 8 | HGND | power_in | High-side analog signal ground. Connect this pin to the DCDC_HGND pin. Reference for the high-side (isolated) analog input circuitry. |
| 9 | GND | power_in | Low-side analog signal ground. Connect this pin to the DCDC_GND pin. Reference for the low-side (system-side) analog output circuitry. |
| 10 | OUTN | output | Inverting analog output. Together with OUTP provides a differential output centered at VDD/2 with fixed gain of 8.2 from the isolated input. |
| 11 | OUTP | output | Noninverting analog output. Together with OUTN provides a differential output centered at VDD/2 with fixed gain of 8.2 from the isolated input. |
| 12 | VDD | power_in | Low-side power supply. Recommended 3.0 V to 5.5 V (nominal 3.3 V). Requires decoupling capacitor to GND per Power Supply Recommendations. |
| 13 | LDO_OUT | power_out | Output of the low-side LDO. Connect this pin to the DCDC_IN pin. The output of the LDO must not be loaded by external circuitry. |
| 14 | DIAG | output | Active-low, open-drain status indicator output. Connect this pin to the pullup supply (for example VDD) using a resistor, or leave this pin floating if not used. |
| 15 | DCDC_GND | power_in | Low-side ground reference for the isolated DC/DC converter. Connect this pin to the GND pin. |
| 16 | DCDC_IN | power_in | Low-side input of the isolated DC/DC converter. Connect this pin to the LDO_OUT pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Signal Isolation Devices |
| Pins | 16 |

## Ordering variants

Same part, different packaging or reel option.

- `AMC3301DWER`

## CAD (KiCad official)

- Symbol: `AMC3301DWER`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files: `amc3301dwer-etched.step` / `amc3301dwer-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `amc3301dwer.step` / `amc3301dwer.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/ds/symlink/amc3301.pdf) (40 pp, sha256 `37b3f16cfe8900f6`, 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).

[Datasheet PDF](docs/amc3301dwer-datasheet.pdf)