component
ADS8331IBPWR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), TSSOP-24. 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
markdownADS8331IBPWR
Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-24
ADS8331IBPWR from Texas Instruments, in a TSSOP-24. 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 | IN1 | input | Mux input channel 1; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
| 2 | IN2 | input | Mux input channel 2; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
| 3 | IN3 | input | Mux input channel 3; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
| 4 | NC | unconnected | No internal connection (ADS8331 only). |
| 5 | NC | unconnected | No internal connection (ADS8331 only). |
| 6 | NC | unconnected | No internal connection (ADS8331 only). |
| 7 | NC | unconnected | No internal connection (ADS8331 only). |
| 8 | RESET | input | External reset, active low. |
| 9 | EOC/INT/CDI | bidirectional | Programmable status output (EOC low during conversion by default, or INT low after end of conversion and high after FS/CS goes low, with programmable polarity), also usable as chain data input (CDI) in daisy-chain mode. |
| 10 | SCLK | input | SPI clock for the serial interface, up to 40 MHz at VA = VBD = 5 V. |
| 11 | FS/CS | input | Frame sync signal for a DSP (such as TMS320 DSP) or chip select input for SPI. |
| 12 | SDI | input | SPI serial data input. |
| 13 | SDO | output | SPI serial data output. |
| 14 | DGND | power_in | Digital interface ground. |
| 15 | CONVST | input | Conversion start input that freezes the sample and hold and starts conversion. |
| 16 | VBD | power_in | Digital interface supply, 1.65 V to VA + 0.2 V recommended. |
| 17 | VA | power_in | Analog supply, 2.7 V to 5.5 V. |
| 18 | REF+ | input | External reference input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
| 19 | REF- | power_in | External reference ground, to be connected to AGND through an individual via on the printed-circuit board. |
| 20 | AGND | power_in | Analog ground. |
| 21 | ADCIN | input | ADC input; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
| 22 | MUXOUT | output | Mux output. |
| 23 | COM | input | Common ADC input, usually connected to AGND. |
| 24 | IN0 | input | Mux input channel 0; absolute maximum -0.3 V to VA + 0.3 V relative to AGND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Data Acquisition |
| Pins | 24 |
CAD (KiCad official)
- Symbol:
ADS8331IBPWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
ads8331ibpwr-etched.step/ads8331ibpwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads8331ibpwr.step/ads8331ibpwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (62 pp, sha256
6d4028ed191231f0, retrieved 2026-10-07, 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).