ADS1013 12-Bit I2C ADC

@@ -0,0 +1,58 @@+# ADS1013++**Texas Instruments** · Analog-to-Digital Converter · VSSOP-10++The ADS1013 is a 12-bit delta-sigma analog-to-digital converter with an I2C interface, an internal reference, and an on-chip oscillator. It digitizes a single differential input at up to 3.3 ksps with a programmable full-scale range, providing simple precision measurement in a compact VSSOP-10. It is the base member of the ADS101x family.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | ADDR | input | I2C target address select input. Four selectable addresses are chosen by tying ADDR to GND, VDD, SDA, or SCL. |+| 2 | NC | unconnected | No connect on the ADS1013. Leave floating or tie to GND. (On ADS1014/ADS1015 this pin is ALERT/RDY.) |+| 3 | GND | power_in | Analog ground reference for the supply and analog inputs. |+| 4 | AIN0 | input | Analog input 0. Serves as the positive differential input (AINP) or single-ended input for the 12-bit delta-sigma ADC. Absolute input range GND to VDD; FSR up to ±6.144 V (limited by VDD + 0.3 V). |+| 5 | AIN1 | input | Analog input 1. Serves as the negative differential input (AINN) paired with AIN0, or as a single-ended input referenced to GND. |+| 6 | NC | unconnected | No connect on the ADS1013. Leave floating or tie to GND. (On ADS1015 this pin is AIN2.) |+| 7 | NC | unconnected | No connect on the ADS1013. Leave floating or tie to GND. (On ADS1015 this pin is AIN3.) |+| 8 | VDD | power_in | Analog power supply, 2.0 V to 5.5 V. Connect a 0.1 µF power-supply decoupling capacitor to GND. |+| 9 | SDA | bidirectional | I2C serial data input/output (open-drain). Connect to VDD through a pullup resistor. Digital input high 0.7·VDD min, low 0.3·VDD max; VOL 0.4 V at IOL = 3 mA. |+| 10 | SCL | input | I2C serial clock input. Connect to VDD through a pullup resistor. Supports fast mode up to 400 kHz and high-speed mode up to 3.4 MHz. |++## Key specifications++| Parameter | Value |+|---|---|+| Resolution | 12-bit |+| Architecture | Delta-sigma |+| Inputs | 1 differential |+| Data rate | Up to 3300 sps |+| Reference | Internal |+| Interface | I2C |+| Supply voltage | 2.0 V to 5.5 V |+| Operating temperature | -40 C to 125 C |++## Ordering variants++- `ADS1013IDGSR`+- `ADS1013IDGST`+- `ADS1013IRUGR`+- `ADS1013IRUGT`+- `ADS1013IDYNR`+- `ADS1013IDYNT`++## CAD (KiCad official)++- Symbol: `ads1013.kicad_sym`+- Footprint: `ads1013.kicad_mod`+- 3D model: VSSOP-10 body from KiCad `Package_SO/TSSOP-10_3x3mm_P0.5mm`.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ads1013.pdf) (50 pp, sha256 `a5cb3720275767b1`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ads1013-datasheet.pdf)

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