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ADS1115-Q1

ACTIVE

Automotive 16-bit, 860-SPS, 4-ch, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C

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Data sheet

ADS1115-Q1

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, Oscillator, PGA Operating temperature range (°C) -40 to 125 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
Resolution (Bits) 16 Sample rate (max) (ksps) 0.86 Number of input channels 4 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Multichannel configuration Multiplexed Rating Automotive TI functional safety category Functional Safety-Capable Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Comparator, Oscillator, PGA Operating temperature range (°C) -40 to 125 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
UQFN (NKS) 10 3.2 mm² 2 x 1.6 VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Wide supply range: 2.0 V to 5.5 V
  • Low current consumption:
    • 150 µA (continuous-conversion mode)
  • Programmable data rate:
    • 8 SPS to 860 SPS
  • Single-cycle settling
  • Internal low-drift voltage reference
  • Internal oscillator
  • I2C interface: Four pin-selectable addresses
  • Family of devices:
    • ADS1113-Q1: 1 single-ended or differential input
    • ADS1114-Q1: 1 single-ended or differential input with comparator and PGA
    • ADS1115-Q1: 4 single-ended or 2 differential inputs with comparator and PGA
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • Wide supply range: 2.0 V to 5.5 V
  • Low current consumption:
    • 150 µA (continuous-conversion mode)
  • Programmable data rate:
    • 8 SPS to 860 SPS
  • Single-cycle settling
  • Internal low-drift voltage reference
  • Internal oscillator
  • I2C interface: Four pin-selectable addresses
  • Family of devices:
    • ADS1113-Q1: 1 single-ended or differential input
    • ADS1114-Q1: 1 single-ended or differential input with comparator and PGA
    • ADS1115-Q1: 4 single-ended or 2 differential inputs with comparator and PGA

The ADS1113-Q1, ADS1114-Q1, and ADS1115-Q1 devices ( ADS111x-Q1) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in VSSOP-10 and UQFN-10 packages. The ADS111x-Q1 devices incorporate a low-drift voltage reference and an oscillator. The ADS1114-Q1 and ADS1115-Q1 also incorporate a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, make the ADS111x-Q1 well suited for power- and space-constrained, sensor measurement applications.

The ADS111x-Q1 perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing precise large- and small-signal measurements. The ADS1115-Q1 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1114-Q1 and ADS1115-Q1 for under- and overvoltage detection.

The ADS1113-Q1, ADS1114-Q1, and ADS1115-Q1 devices ( ADS111x-Q1) are precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in VSSOP-10 and UQFN-10 packages. The ADS111x-Q1 devices incorporate a low-drift voltage reference and an oscillator. The ADS1114-Q1 and ADS1115-Q1 also incorporate a programmable gain amplifier (PGA) and a digital comparator. These features, along with a wide operating supply range, make the ADS111x-Q1 well suited for power- and space-constrained, sensor measurement applications.

The ADS111x-Q1 perform conversions at data rates up to 860 samples per second (SPS). The PGA offers input ranges from ±256 mV to ±6.144 V, allowing precise large- and small-signal measurements. The ADS1115-Q1 features an input multiplexer (MUX) that allows two differential or four single-ended input measurements. Use the digital comparator in the ADS1114-Q1 and ADS1115-Q1 for under- and overvoltage detection.
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Technical documentation

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Type Title Date
* Data sheet ADS111x-Q1Automotive, Low-Power, I2C-Compatible, 860-SPS, 16-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator datasheet (Rev. E) PDF | HTML 12 Dec 2022
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 Mar 2024
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 Mar 2023
Functional safety information ADS1115-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 01 Dec 2022
Application note A Basic Guide to I2C PDF | HTML 08 Nov 2022
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19 Sep 2016
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 Mar 2015
Analog Design Journal How delta-sigma ADCs work, Part 2 09 Nov 2011

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