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ADS1222IPWR
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Texas Instruments Analog To Digital Converters (ADC), TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ADS1222IPWR
Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-14
ADS1222IPWR from Texas Instruments, in a TSSOP-14. 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 | VDD | power_in | Analog and digital power supply; the datasheet specifies VDD from 2.7 V to 5.5 V. |
| 2 | SCLK | input | Serial clock input for the 2-wire serial interface. |
| 3 | CLK | input | System clock input; the electrical characteristics specify fCLK at 8 MHz. |
| 4 | DRDY/DOUT | output | Dual-purpose output: goes low to indicate valid data is ready, and outputs conversion data MSB first on the rising edge of SCLK. |
| 5 | MUX | input | Digital input that selects the analog input of the multiplexer. |
| 6 | TEMPEN | input | Digital input that selects the temperature sensor input from the multiplexer. |
| 7 | BUFEN | input | Digital input that enables the input buffer. |
| 8 | AINP2 | input | Analog channel 2 positive input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 9 | AINN2 | input | Analog channel 2 negative input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 10 | AINP1 | input | Analog channel 1 positive input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 11 | AINN1 | input | Analog channel 1 negative input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 12 | GND | power_in | Analog and digital ground. |
| 13 | VREFN | input | Negative reference input; the reference voltage is VREF = VREFP − VREFN. |
| 14 | VREFP | input | Positive reference input; the reference voltage is VREF = VREFP − VREFN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Data Acquisition |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
ADS1222IPWR - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
ads1222ipwr-etched.step/ads1222ipwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads1222ipwr.step/ads1222ipwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (28 pp, sha256
33c5de7be47f7022, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).
# ADS1222IPWR
**Texas Instruments** · Analog To Digital Converters (ADC) · TSSOP-14
ADS1222IPWR from Texas Instruments, in a TSSOP-14. 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 | VDD | power_in | Analog and digital power supply; the datasheet specifies VDD from 2.7 V to 5.5 V. |
| 2 | SCLK | input | Serial clock input for the 2-wire serial interface. |
| 3 | CLK | input | System clock input; the electrical characteristics specify fCLK at 8 MHz. |
| 4 | DRDY/DOUT | output | Dual-purpose output: goes low to indicate valid data is ready, and outputs conversion data MSB first on the rising edge of SCLK. |
| 5 | MUX | input | Digital input that selects the analog input of the multiplexer. |
| 6 | TEMPEN | input | Digital input that selects the temperature sensor input from the multiplexer. |
| 7 | BUFEN | input | Digital input that enables the input buffer. |
| 8 | AINP2 | input | Analog channel 2 positive input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 9 | AINN2 | input | Analog channel 2 negative input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 10 | AINP1 | input | Analog channel 1 positive input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 11 | AINN1 | input | Analog channel 1 negative input; the differential full-scale input (AINP − AINN) is ±2VREF. |
| 12 | GND | power_in | Analog and digital ground. |
| 13 | VREFN | input | Negative reference input; the reference voltage is VREF = VREFP − VREFN. |
| 14 | VREFP | input | Positive reference input; the reference voltage is VREF = VREFP − VREFN. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Data Acquisition |
| Pins | 14 |
## CAD (KiCad official)
- Symbol: `ADS1222IPWR`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `ads1222ipwr-etched.step` / `ads1222ipwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ads1222ipwr.step` / `ads1222ipwr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ads1222) (28 pp, sha256 `33c5de7be47f7022`, retrieved 2026-10-11, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/ads1222ipwr-datasheet.pdf)