component
ADS1147IPW
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), TSSOP-20. Pinout cross-checked by two models against the datasheet, 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
markdownADS1147IPW
Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-20
ADS1147IPW from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | DVDD | power_in | Digital power supply, connect a 0.1-µF capacitor to DGND |
| 2 | DGND | power_in | Digital ground |
| 3 | CLK | input | External clock input, tie to DGND to activate the internal oscillator. |
| 4 | RESET | input | Reset (active low) |
| 5 | REFP0/GPIO0 | bidirectional | Positive external reference input 0, or general-purpose digital input/output pin 1 |
| 6 | REFN0/GPIO1 | bidirectional | Negative external reference input 0, or general-purpose digital input/output pin 1 |
| 7 | VREFOUT | output | Positive internal reference voltage output, connect a capacitor in the range of 1 µF to 47 µF to VREFCOM |
| 8 | VREFCOM | output | Negative internal reference voltage output, connect to AVSS when using a unipolar supply or to the mid-voltage ground when using a bipolar supply |
| 9 | AIN0/IEXC | input | Analog input 0, optional excitation current output |
| 10 | AIN1/IEXC | input | Analog input 1, optional excitation current output |
| 11 | AIN2/IEXC/GPIO2 | bidirectional | Analog input 2, optional excitation current output, or general-purpose digital input/output pin 2 |
| 12 | AIN3/IEXC/GPIO3 | bidirectional | Analog input 3, optional excitation current output, or general-purpose digital input/output pin 3 |
| 13 | AVSS | power_in | Negative analog power supply |
| 14 | AVDD | power_in | Positive analog power supply, connect a 0.1-µF capacitor to AVSS |
| 15 | START | input | Conversion start |
| 16 | CS | input | Chip select (active low) |
| 17 | DRDY | output | Data ready (active low) |
| 18 | DOUT/DRDY | output | Serial data output, or data out combined with data ready |
| 19 | DIN | input | Serial data input |
| 20 | SCLK | input | Serial clock input |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Data Acquisition |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
ADS1147IPW - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
ads1147ipw-etched.step/ads1147ipw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads1147ipw.step/ads1147ipw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (100 pp, sha256
45e0fc75c85fcf9e, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).