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Contents

README

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ADS1114BQDGSRQ1

Texas Instruments · Analog To Digital Converters (ADCs) · MSOP-10

ADS1114BQDGSRQ1 from Texas Instruments, in a MSOP-10. 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 ADDR input I2C target address select; the pin is connected to GND, VDD, SDA, or SCL to choose one of four target addresses.
2 ALERT/RDY output Comparator output or conversion ready output on this ADS1114-Q1 pin; it is an open-drain output that connects to VDD through a pullup resistor.
3 GND power_in Analog ground.
4 AIN0 passive Analog input 0.
5 AIN1 passive Analog input 1.
6 NC unconnected No connect; leave the pin floating or connect it to GND.
7 NC unconnected No connect; leave the pin floating or connect it to GND.
8 VDD power_in Power supply; connect a 0.1-μF power-supply decoupling capacitor to GND.
9 SDA bidirectional Serial data input and output; connect to VDD using a pullup resistor.
10 SCL input Serial clock input; connect to VDD using a pullup resistor.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package MSOP-10
Category Data Converters
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Power-supply voltage VDD to GND VDD -0.3 7 V 5
Input current, continuous -10 10 mA Any pin except power supply pins 5
Digital input voltage SDA, SCL, ADDR, ALERT/RDY 5.5 V 5
Operating ambient temperature TA -40 125 °C 5
Junction temperature TJ -40 150 °C 5
Storage temperature Tstg -60 150 °C 5
Power supply (VDD to GND) VDD 2 5.5 V 5
Digital input voltage VDIG 5.5 V 5
Operating ambient temperature TA -40 125 °C 5
Offset error, differential inputs -3 3 LSB FSR = ±2.048 V, differential inputs 7
Offset error, single-ended inputs -3 3 LSB FSR = ±2.048 V, single-ended inputs 7
Data rate variation -10 10 % All data rates 7
Gain error 0.01 0.15 % FSR = ±2.048 V, TA = 25°C 7
Gain drift over temperature 5 40 ppm/°C FSR = ±2.048 V 7
Gain match 0.02 0.1 % Match between any two gains 7
Gain channel match 0.05 0.1 % Match between any two inputs 7
Integral nonlinearity INL 1 LSB DR = 8 SPS, FSR = ±2.048 V 7
High-level input voltage VIH 5.5 V 7
Low-level output voltage VOL 0.15 0.4 V IOL = 3 mA 7
Input leakage current -10 10 µA GND < VDIG < VDD 7
Supply current, power-down IVDD 0.5 2 µA TA = 25°C 8
Supply current, power-down IVDD 5 µA Power-down 8
Supply current, operating IVDD 150 200 µA TA = 25°C 8
Supply current, operating IVDD 300 µA Operating 8
SCL clock frequency fSCL 0.01 0.4 MHz Fast mode 8
SCL clock frequency fSCL 0.01 3.4 MHz High-speed mode 8
Bus free time between START and STOP condition tBUF 600 ns Fast mode 8
Bus free time between START and STOP condition tBUF 160 ns High-speed mode 8
Low period of the SCL clock pin tLOW 1300 ns Fast mode 8
Low period of the SCL clock pin tLOW 160 ns High-speed mode 8
High period for the SCL clock pin tHIGH 600 ns Fast mode 8
High period for the SCL clock pin tHIGH 60 ns High-speed mode 8
Data setup time tSUDAT 100 ns Fast mode 8
Data setup time tSUDAT 10 ns High-speed mode 8
Power dissipation PD 0.9 mW VDD = 5.0 V 8
Power dissipation PD 0.5 mW VDD = 3.3 V 8
Power dissipation PD 0.3 mW VDD = 2.0 V 8
Gain power-supply rejection 80 ppm/V 7
Offset drift over temperature 0.005 LSB/°C FSR = ±2.048 V 7
Offset power-supply rejection 1 LSB/V FSR = ±2.048 V, DC supply variation 7
Common-mode rejection ratio, DC CMRR 105 dB At DC, FSR = ±0.256 V 7
Common-mode rejection ratio, DC CMRR 100 dB At DC, FSR = ±2.048 V 7
Common-mode rejection ratio, DC CMRR 90 dB At DC, FSR = ±6.144 V 7
Junction-to-ambient thermal resistance RθJA 170.9 °C/W DGS (VSSOP) 10 pins 6
Junction-to-case (top) thermal resistance RθJC(top) 61 °C/W DGS (VSSOP) 10 pins 6
Junction-to-board thermal resistance RθJB 91.2 °C/W DGS (VSSOP) 10 pins 6
Junction-to-top characterization parameter ψJT 8.5 °C/W DGS (VSSOP) 10 pins 6
Junction-to-board characterization parameter ψJB 89.8 °C/W DGS (VSSOP) 10 pins 6

CAD (KiCad official)

  • Symbol: ADS1114BQDGSRQ1
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: MSOP-10 (KiCad packages3D, STEP)
  • 3D model files: ads1114bqdgsrq1-etched.step / ads1114bqdgsrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1114bqdgsrq1.step / ads1114bqdgsrq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (50 pp, sha256 e26e0a97e37eec4b, retrieved 2026-10-28, tier: manufacturer)
  • 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 0.3, 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