component
REF5040AIDGKR
Public Unreviewedby Ray
Texas Instruments Voltage References, VSSOP-8-0.65mm. 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
markdownREF5040AIDGKR
Texas Instruments · Voltage References · VSSOP-8-0.65mm
REF5040AIDGKR from Texas Instruments, in a VSSOP-8-0.65mm. 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 | DNC | unconnected | Do not connect. Leave this pin electrically unconnected on the PCB; it is reserved for internal factory use. |
| 2 | VIN | power_in | Input supply voltage. For the REF50xxAI grade, VIN operates from (VOUT + 0.2V) up to 18V. Bypass with ~1µF ceramic to GND close to the pin. |
| 3 | TEMP | output | Temperature monitoring output pin. Provides a temperature-dependent output voltage useful for system-level temperature sensing. |
| 4 | GND | power_in | Device ground. Common return for VIN, VOUT and the internal reference core. |
| 5 | TRIM/NR | bidirectional | Dual-function output-adjustment / noise-reduction pin. Can be used to fine-trim VOUT via an external resistor network, or to add an external capacitor to reduce output noise. |
| 6 | VOUT | power_out | Reference voltage output. Delivers a nominal 4.096V for REF5040 with ±0.1% initial accuracy (AI grade). Capable of sourcing and sinking up to ±10mA; typically bypassed with a 1µF-22µF capacitor to GND. |
| 7 | NC | unconnected | No internal connection. May be left floating. |
| 8 | DNC | unconnected | Do not connect. Leave this pin electrically unconnected on the PCB; it is reserved for internal factory use. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Supply Chip |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
REF5040AIDGKRREF5040AIDGKRAIDRREF5040AIDGKRIDR
CAD (KiCad official)
- Symbol:
REF5040AIDGKR - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (52 pp, sha256
3432cb9cf8c792a5, retrieved 2026-08-17, tier: lcsc) - 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).