component
ADS7128IRTER
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), WQFN-16-EP(3x3). 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
markdownADS7128IRTER
Texas Instruments · Analog To Digital Converters (ADC) · WQFN-16-EP(3x3)
ADS7128IRTER from Texas Instruments, in a WQFN-16-EP(3x3). 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 | AIN2/GPIO2 | bidirectional | Channel 2 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 2 | AIN3/GPIO3 | bidirectional | Channel 3 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 3 | AIN4/GPIO4 | bidirectional | Channel 4 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 4 | AIN5/GPIO5 | bidirectional | Channel 5 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 5 | AIN6/GPIO6 | bidirectional | Channel 6 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 6 | AIN7/GPIO7 | bidirectional | Channel 7 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 7 | AVDD | power_in | Analog supply voltage and reference voltage for ADC; operating range 2.35 V to 5.5 V; requires 1-µF low-ESR decoupling capacitor to GND. |
| 8 | DECAP | passive | Decoupling capacitor connection for internal power supply; connect capacitor in range 0.22 µF to 1 µF. |
| 9 | GND | power_in | Ground reference for all analog and digital signals; maximum voltage -0.3 V to GND. |
| 10 | DVDD | power_in | Digital I/O supply voltage; operating range 1.65 V to 5.5 V; requires 1-µF decoupling capacitor to GND. |
| 11 | ADDR | input | I2C address selector input; connect external resistor from this pin to DECAP or GND to select one of eight I2C addresses; input range -0.3 V to 2.1 V. |
| 12 | ALERT | output | Digital comparator alert output; configurable as open-drain (default) or push-pull output with maximum sink current of 5 mA; can indicate CRC error or RMS completion. |
| 13 | SCL | input | I2C serial clock input; supports standard mode (up to 400 kHz), fast mode, fast mode plus, and high-speed mode (up to 3.4 MHz) with input thresholds 0.7 × DVDD (high) and 0.3 × DVDD (low). |
| 14 | SDA | bidirectional | I2C serial data input/output pin; supports standard mode (up to 400 kHz), fast mode, fast mode plus, and high-speed mode (up to 3.4 MHz) with input thresholds 0.7 × DVDD (high) and 0.3 × DVDD (low). |
| 15 | AIN0/GPIO0 | bidirectional | Channel 0 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 16 | AIN1/GPIO1 | bidirectional | Channel 1 configurable as analog input (default), digital input, or digital output; input range -0.3 V to AVDD + 0.3 V with maximum pin current of ±10 mA. |
| 17 | EP | 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:
ADS7128IRTER - 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:
ads7128irter-etched.step/ads7128irter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads7128irter.step/ads7128irter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (81 pp, sha256
15b04478f2faa591, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).