ADS1110 16-Bit I2C ADC

@@ -0,0 +1,66 @@+# ADS1110++**Texas Instruments** · Analog-to-Digital Converter · SOT-23-6++The ADS1110 is a 16-bit self-calibrating delta-sigma analog-to-digital converter with an I2C interface. It integrates a 2.048 V reference and a programmable gain amplifier (1x to 8x), converting a single differential input at selectable data rates and resolution up to 16 bits. Its SOT-23-6 package suits compact precision measurement.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | VIN+ | input | Non-inverting analog input of the differential ADC. Full-scale differential range is +/-2.048V/PGA; absolute voltage must remain within GND-0.2V to VDD+0.2V. Common-mode input impedance depends on PGA (0.9-3.5 MOhm); differential input impedance is 2.8 MOhm/PGA. |+| 2 | GND | power_in | Ground return for analog and digital supply. VDD-to-GND absolute maximum is -0.3V to +6V. |+| 3 | SCL | input | I2C serial clock input. Open-drain, driven by the master; the ADS1110 never drives SCL (it acts as an I2C slave only). Requires an external pull-up resistor. Supports Standard (100 kHz), Fast (400 kHz), and High-speed (up to 3.4 MHz) modes. Absolute maximum voltage to GND: -0.5V to 6V. |+| 4 | SDA | bidirectional | I2C serial data line, bidirectional open-drain. Requires an external pull-up resistor. VOL = 0.4V max at IOL = 3 mA. Absolute maximum voltage to GND: -0.5V to 6V. |+| 5 | VDD | power_in | Positive power-supply input. Operating range 2.7V to 5.5V (absolute max 6V). Typical supply current 240 uA active, 0.05 uA in power-down. Bypass with a local ceramic decoupling capacitor to GND. |+| 6 | VIN- | input | Inverting analog input of the differential ADC. Full-scale differential range is +/-2.048V/PGA; absolute voltage must remain within GND-0.2V to VDD+0.2V. Do not drive below -200 mV in differential mode. |++## Key specifications++| Parameter | Value |+|---|---|+| Resolution | 12/14/15/16-bit (rate dependent) |+| Architecture | Delta-sigma, self-calibrating |+| Inputs | 1 differential |+| Reference | Internal 2.048 V |+| PGA gain | 1x, 2x, 4x, 8x |+| Interface | I2C |+| Supply voltage | 2.7 V to 5.5 V |+| Operating temperature | -40 C to 85 C |++## Ordering variants++- `ADS1110IDBVT`+- `ADS1110IDBVR`+- `ADS1110A0IDBVT`+- `ADS1110A0IDBVR`+- `ADS1110A1IDBVT`+- `ADS1110A1IDBVR`+- `ADS1110A2IDBVT`+- `ADS1110A2IDBVR`+- `ADS1110A3IDBVT`+- `ADS1110A3IDBVR`+- `ADS1110A4IDBVT`+- `ADS1110A4IDBVR`+- `ADS1110A5IDBVT`+- `ADS1110A5IDBVR`+- `ADS1110A6IDBVT`+- `ADS1110A6IDBVR`+- `ADS1110A7IDBVT`+- `ADS1110A7IDBVR`++## CAD (KiCad official)++- Symbol: `ads1110.kicad_sym`+- Footprint: `ads1110.kicad_mod`+- 3D model: SOT-23-6 body from KiCad `Package_TO_SOT_SMD/SOT-23-6`.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/ads1110.pdf) (26 pp, sha256 `1e15543d347dbf9e`, 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/ads1110-datasheet.pdf)

@@ -0,0 +1,37 @@+{+  "slug": "ads1110",+  "version": "0.1.0",+  "type": "component",+  "description": "16-bit self-calibrating delta-sigma ADC with I2C, onboard reference and PGA.",+  "tags": [+    "adc",+    "delta-sigma",+    "16-bit",+    "i2c",+    "pga",+    "ti",+    "sot-23-6"+  ],+  "dependencies": {},+  "hero": {+    "type": "image",+    "path": "docs/hero.png"+  },+  "files": [+    "page.json",+    "README.md",+    "ads1110.kicad_sym",+    "ads1110.kicad_mod",+    "ads1110.glb",+    "ads1110.step",+    "docs/hero.png",+    "docs/ads1110-datasheet.pdf",+    "viewers/symbol.html",+    "viewers/footprint.html"+  ],+  "visibility": "public",+  "author": {+    "name": "Ray",+    "email": "[email protected]"+  }+}\ No newline at end of file