component
ADS8681IPWR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADC), TSSOP-16. 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
markdownADS8681IPWR
Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-16
ADS8681IPWR from Texas Instruments, in a TSSOP-16. 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 | DGND | power_in | Digital ground pin; decouple with DVDD. |
| 2 | AVDD | power_in | Analog power supply pin (4.75 to 5.25 V nominal); decouple with AGND. |
| 3 | AGND | power_in | Analog ground pin; decouple with AVDD. |
| 4 | REFIO | bidirectional | Internal reference output (4.095 to 4.097 V) or external reference input (4.046 to 4.146 V); decouple with REFGND. |
| 5 | REFGND | power_in | Reference ground pin connected to analog ground plane; decouple with REFIO and REFCAP. |
| 6 | REFCAP | passive | Reference buffer output pin for 10 µF decoupling capacitor connection to REFGND. |
| 7 | AIN_P | input | Positive analog input pin with ≥1 MΩ input impedance, ±20 V overvoltage protection, supporting ranges from ±12.288 V to ±2.56 V or 0 to 12.288 V. |
| 8 | AIN_GND | input | Negative analog input pin with −0.1 to +0.1 V allowable range referenced to GND. |
| 9 | RST | input | Active low asynchronous reset input pin requiring minimum 100 ns pulse width. |
| 10 | SDI | input | Serial data input pin for SPI communication supporting daisy-chain operation in multi-device configurations. |
| 11 | CONVST/CS | input | Dual-function control pin: rising edge triggers conversion (ACQ to CONV transition), falling edge initiates SPI communication with active low chip-select function. |
| 12 | SCLK | input | Serial clock input pin for SPI communication with maximum frequency of 66.67 MHz. |
| 13 | SDO-0 | tri_state | Primary serial data output pin driven when CONVST/CS is low, tri-stated when CONVST/CS is high. |
| 14 | ALARM/SDO-1/GPO | tri_state | Multifunction output pin configurable as alarm output, serial data output 1, or general-purpose output, tri-stated when CONVST/CS is high. |
| 15 | RVS | output | Status and clock output pin providing internal ADCST signal reflection when CS high or source-synchronous clock in SRC protocol mode. |
| 16 | DVDD | power_in | Digital power supply pin (1.65 to 3.3 V or up to AVDD nominal); decouple with DGND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Data Acquisition |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
ADS8681IPWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
ads8681ipwr-etched.step/ads8681ipwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads8681ipwr.step/ads8681ipwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (77 pp, sha256
0f381e7cfcfef8f2, retrieved 2026-09-25, 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-4-6(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).