component
TLA2528IRTER
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), 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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Contents
README
markdownTLA2528IRTER
Texas Instruments · Analog To Digital Converters (ADCs) · WQFN-16-EP(3x3)
TLA2528IRTER 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 | AIN2/GPIO2 | bidirectional | Channel 2; configurable as either an analog input (default) or a GPIO. |
| 2 | AIN3/GPIO3 | bidirectional | Channel 3; configurable as either an analog input (default) or a GPIO. |
| 3 | AIN4/GPIO4 | bidirectional | Channel 4; configurable as either an analog input (default) or a GPIO. |
| 4 | AIN5/GPIO5 | bidirectional | Channel 5; configurable as either an analog input (default) or a GPIO. |
| 5 | AIN6/GPIO6 | bidirectional | Channel 6; configurable as either an analog input (default) or a GPIO. |
| 6 | AIN7/GPIO7 | bidirectional | Channel 7; configurable as either an analog input (default) or a GPIO. |
| 7 | AVDD | power_in | Analog supply input (2.35V to 5.5V), also used as the ADC reference voltage; connect a 1-µF decoupling capacitor to GND. |
| 8 | DECAP | passive | Connect a decoupling capacitor to this pin for the internal power supply. |
| 9 | GND | power_in | Ground for the power supply; all analog and digital signals are referred to this pin voltage. |
| 10 | DVDD | power_in | Digital I/O supply voltage (1.65V to 5.5V); connect a 1-µF decoupling capacitor to GND. |
| 11 | ADDR | input | Analog input for selecting the I2C address; connect a resistor from the DECAP pin or GND to select one of eight addresses (absolute max GND-0.3V to 2.1V). |
| 12 | NC | unconnected | No connection; this pin must be left floating with no external connection. |
| 13 | SCL | input | Serial clock for the I2C interface. |
| 14 | SDA | bidirectional | Serial data input or output for the I2C interface. |
| 15 | AIN0/GPIO0 | bidirectional | Channel 0; configurable as either an analog input (default) or a general-purpose input/output (GPIO). |
| 16 | AIN1/GPIO1 | bidirectional | Channel 1; configurable as either an analog input (default) or a GPIO. |
| 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 | ADC/DAC/Data Conversion |
| Pins | 17 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DVDD to GND | DVDD | -0.3 | 5.5 | V | 4 | ||
| AVDD to GND | AVDD | -0.3 | 5.5 | V | 4 | ||
| ADDR voltage | ADDR | 2.1 | V | min is GND - 0.3 | 4 | ||
| Digital inputs | 5.5 | V | min is GND - 0.3 | 4 | |||
| Current through any pin except supply pins | -10 | 10 | mA | 4 | |||
| Junction temperature | TJ | -40 | 125 | °C | 4 | ||
| Storage temperature | Tstg | -60 | 150 | °C | 4 | ||
| Analog supply voltage | AVDD | 2.35 | 3.3 | 5.5 | V | 4 | |
| Digital supply voltage | DVDD | 1.65 | 3.3 | 5.5 | V | 4 | |
| Absolute input voltage | VIN | -0.1 | V | AINX - GND; max is AVDD + 0.1 | 4 | ||
| Ambient temperature | TA | -40 | 25 | 85 | °C | 4 | |
| Junction-to-ambient thermal resistance | RθJA | 49.7 | °C/W | RTE (WQFN) 16 pins | 4 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 53.4 | °C/W | RTE (WQFN) 16 pins | 4 | ||
| Junction-to-board thermal resistance | RθJB | 24.7 | °C/W | RTE (WQFN) 16 pins | 4 | ||
| Junction-to-case (bottom) thermal resistance | RθJC(bot) | 9.3 | °C/W | RTE (WQFN) 16 pins | 4 | ||
| Decoupling capacitor on DECAP pin | 0.22 | 1 | µF | 5 | |||
| I2C input high logic level | VIH | 5.5 | V | All I2C modes; min is 0.7 x DVDD | 5 | ||
| I2C input low logic level | VIL | -0.3 | V | All I2C modes; max is 0.3 x DVDD | 5 | ||
| I2C output low logic level | VOL | 0 | 0.4 | V | Sink current = 2 mA, DVDD > 2 V | 5 | |
| I2C low-level output current (sink) | IOL | 3 | mA | VOL = 0.4 V, standard and fast mode | 5 | ||
| I2C low-level output current (sink) | IOL | 6 | mA | VOL = 0.6 V, fast mode | 5 | ||
| I2C low-level output current (sink) | IOL | 20 | mA | VOL = 0.4 V, fast mode plus | 5 | ||
| GPIO input low logic level | VIL | -0.3 | V | max is 0.3 x AVDD | 5 | ||
| SCL clock frequency | fSCL | 1 | MHz | Fast mode | 6 | ||
| SCL clock frequency | fSCL | 3.4 | MHz | High speed mode | 6 | ||
| START condition setup time for repeated start | tSUSTA | 260 | ns | Fast mode | 6 | ||
| START condition setup time for repeated start | tSUSTA | 160 | ns | High speed mode | 6 | ||
| Start condition hold time | tHDSTA | 260 | ns | Fast mode | 6 | ||
| Start condition hold time | tHDSTA | 160 | ns | High speed mode | 6 | ||
| Clock low period | tLOW | 500 | ns | Fast mode | 6 | ||
| Clock low period | tLOW | 160 | ns | High speed mode | 6 | ||
| Clock high period | tHIGH | 260 | ns | Fast mode | 6 | ||
| Clock high period | tHIGH | 60 | ns | High speed mode | 6 | ||
| Data in setup time | tSUDAT | 50 | ns | Fast mode | 6 | ||
| Data in setup time | tSUDAT | 10 | ns | High speed mode | 6 | ||
| SCL rise time | tR | 120 | ns | Fast mode | 6 | ||
| SCL rise time | tR | 80 | ns | High speed mode | 6 | ||
| SCL fall time | tF | 120 | ns | Fast mode | 6 | ||
| SCL fall time | tF | 80 | ns | High speed mode | 6 | ||
| Bus free time before new transmission | tBUF | 500 | ns | Fast mode | 6 | ||
| Bus free time before new transmission | tBUF | 300 | ns | High speed mode | 6 | ||
| Sampling capacitance | CSH | 12 | pF | 5 | |||
| Resolution | 12 | bits | No missing codes | 5 | |||
| Differential nonlinearity | DNL | 0.3 | LSB | printed as ±0.3 | 5 | ||
| Integral nonlinearity | INL | 0.5 | LSB | printed as ±0.5 | 5 | ||
| Input offset error | V(OS) | 0.5 | LSB | Post offset calibration; printed as ±0.5 | 5 | ||
| Input offset thermal drift | 5 | ppm/°C | Post offset calibration; printed as ±5 | 5 | |||
| Gain error | GE | 0.05 | %FSR | printed as ±0.05 | 5 | ||
| Gain error thermal drift | 5 | ppm/°C | printed as ±5 | 5 | |||
| Signal-to-noise + distortion ratio | SINAD | 71.5 | dB | AVDD = 5 V, fIN = 2 kHz | 5 | ||
| Signal-to-noise + distortion ratio | SINAD | 70.5 | dB | AVDD = 3 V, fIN = 2 kHz | 5 | ||
| Analog supply current | IAVDD | 260 | µA | I2C high-speed mode, AVDD = 5 V | 5 | ||
| Analog supply current | IAVDD | 83 | µA | I2C fast mode plus, AVDD = 5 V | 5 | ||
| Analog supply current | IAVDD | 35 | µA | I2C fast mode, AVDD = 5 V | 5 | ||
| Analog supply current | IAVDD | 10 | µA | I2C standard mode, AVDD = 5 V | 5 | ||
| Analog supply current | IAVDD | 5 | µA | No conversion, AVDD = 5 V | 5 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | pins and connect CREF to the device pins with thick copper tracks. | 29 |
CAD (KiCad official)
- Symbol:
TLA2528IRTER - 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:
tla2528irter-etched.step/tla2528irter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tla2528irter.step/tla2528irter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
ef0c9325d480f048, retrieved 2026-10-22, 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-sonnet-5-5(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).