component
ADS8355IRTER
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), WQFN-16-EP(3x3). 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
markdownADS8355IRTER
Texas Instruments · Analog To Digital Converters (ADC) · WQFN-16-EP(3x3)
ADS8355IRTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | REFIO_A | bidirectional | Reference voltage input/output for channel A; voltage range REFGND_A - 0.3 V to AVDD + 0.3 V, functions as external reference input or internal reference output per REF_SEL register setting. |
| 2 | REFGND_A | power_in | Reference ground for channel A; must be maintained within GND ± 0.3 V per absolute maximum ratings. |
| 3 | REFGND_B | power_in | Reference ground for channel B; must be maintained within GND ± 0.3 V per absolute maximum ratings. |
| 4 | REFIO_B | bidirectional | Reference voltage input/output for channel B; voltage range REFGND_B - 0.3 V to AVDD + 0.3 V, functions as external reference input or internal reference output per REF_SEL register setting. |
| 5 | AINM_B | input | Negative analog input for channel B; voltage range REFGND_B - 0.3 V to AVDD + 0.3 V, connect to GND for single-ended mode or to FSR/2 for pseudo-differential mode per AINM_SEL register. |
| 6 | AINP_B | input | Positive analog input for channel B; voltage range REFGND_B - 0.3 V to AVDD + 0.3 V with full-scale range 0 to VREF_B (default) or 0 to 2×VREF_B per RANGE_SEL bit. |
| 7 | DVDD | power_in | Digital I/O supply voltage; -0.3 V to 6 V absolute maximum with ±10 mA input current limit per pin. |
| 8 | SDI | input | Serial data input for SPI communication; digital input voltage GND - 0.3 V to DVDD + 0.3 V, sampled on SCLK falling edges. |
| 9 | CS | input | Chip-select signal (active low); digital input voltage GND - 0.3 V to DVDD + 0.3 V, forces SDO pins to tri-state when high and triggers ADC conversion. |
| 10 | SCLK | input | Serial clock input for SPI interface; digital input voltage GND - 0.3 V to DVDD + 0.3 V, clocks data out on falling edges. |
| 11 | SDO_A | output | Serial data output for channel A in dual-SDO mode or both channels sequentially in single-SDO mode; digital tri-state output transitions to high-impedance when CS is high. |
| 12 | SDO_B | output | Serial data output for channel B in dual-SDO mode; digital tri-state output transitions to high-impedance when CS is high, driven low in single-SDO mode. |
| 13 | GND | power_in | Device ground; 0 V reference for all voltage measurements and power return path. |
| 14 | AVDD | power_in | Analog supply voltage for ADC operation; -0.3 V to 6 V absolute maximum, must satisfy 2×VREF_A ≤ AVDD when RANGE_SEL = 1. |
| 15 | AINP_A | input | Positive analog input for channel A; voltage range REFGND_A - 0.3 V to AVDD + 0.3 V with full-scale range 0 to VREF_A (default) or 0 to 2×VREF_A per RANGE_SEL bit. |
| 16 | AINM_A | input | Negative analog input for channel A; voltage range REFGND_A - 0.3 V to AVDD + 0.3 V, connect to GND for single-ended mode or to FSR/2 for pseudo-differential mode per AINM_SEL register. |
| 17 | Thermal pad | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16-EP(3x3) |
| Category | Data Acquisition |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
ADS8355IRTER - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: WQFN-16-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
ads8355irter-etched.step/ads8355irter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads8355irter.step/ads8355irter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (43 pp, sha256
80add76d78296c95, retrieved 2026-10-06, 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: 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).