component
ADS1243IPWR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), TSSOP-20. 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
markdownADS1243IPWR
Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-20
ADS1243IPWR from Texas Instruments, in a TSSOP-20. 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 | Power Supply, 2.7V to 5.25V operating range |
| 2 | XIN | input | Clock Input, Master Clock Rate 1MHz to 5MHz |
| 3 | XOUT | output | Clock Output for external crystal or ceramic resonator connection |
| 4 | PDWN | input | Power Down Control, Active LOW, shuts down analog and digital circuits when LOW |
| 5 | VREF+ | power_in | Positive Differential Reference Input, reference voltage (VREF+ - VREF-) 0.1V to 5V |
| 6 | VREF- | power_in | Negative Differential Reference Input, reference voltage (VREF+ - VREF-) 0.1V to 5V |
| 7 | AIN0/D0 | bidirectional | Analog Input 0 or Digital I/O 0, input range GND+0.05V to VDD-1.5V with buffer ON |
| 8 | AIN1/D1 | bidirectional | Analog Input 1 or Digital I/O 1, input range GND+0.05V to VDD-1.5V with buffer ON |
| 9 | AIN4/D4 | bidirectional | Analog Input 4 or Digital I/O 4, input range GND+0.05V to VDD-1.5V with buffer ON |
| 10 | AIN5/D5 | bidirectional | Analog Input 5 or Digital I/O 5, input range GND+0.05V to VDD-1.5V with buffer ON |
| 11 | AIN6/D6 | bidirectional | Analog Input 6 or Digital I/O 6, input range GND+0.05V to VDD-1.5V with buffer ON |
| 12 | AIN7/D7 | bidirectional | Analog Input 7 or Digital I/O 7, input range GND+0.05V to VDD-1.5V with buffer ON |
| 13 | AIN2/D2 | bidirectional | Analog Input 2 or Digital I/O 2, input range GND+0.05V to VDD-1.5V with buffer ON |
| 14 | AIN3/D3 | bidirectional | Analog Input 3 or Digital I/O 3, input range GND+0.05V to VDD-1.5V with buffer ON |
| 15 | GND | power_in | Ground |
| 16 | CS | input | Chip Select, Active LOW, enables serial interface when LOW |
| 17 | DIN | input | Serial Data Input with Schmitt Trigger, SPI compatible |
| 18 | DOUT | tri_state | Serial Data Output, SPI compatible, tri-states when CS is HIGH |
| 19 | SCLK | input | Serial Clock with Schmitt Trigger, SPI compatible |
| 20 | DRDY | output | Data Ready Output, Active LOW, indicates new conversion data ready |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Data Acquisition |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
ADS1243IPWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
ads1243ipwr-etched.step/ads1243ipwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads1243ipwr.step/ads1243ipwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
0bf7c17072b2c943, retrieved 2026-10-01, 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).