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ADS1115IRUGT

Texas Instruments

Texas Instruments ADS1115IRUGT, 16-bit sigma-delta ADC, I2C, PGA, 860 SPS, 2-input differential/single-ended, internal reference, 2V~5.5V supply, -40°C~125°C, 10-XFQFN package.

Texas Instruments ADS1115IRUGT
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[IN STOCK] In Stock: 108 pcs
$2.57/ pc

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MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

[ORIGINAL SEALED] [PRE-SHIP HD PHOTOS] [30D WARRANTY · COC] [TRACKED DAP/DDP]

Technical specifications

ADS1115IRUGT specifications
Parameter / AttributeSpecification / Value
Input typeDifferential, Single Ended
MountingSurface Mount
Reference typeInternal
Voltage - supply, analog2V ~ 5.5V
Voltage - supply, digital2V ~ 5.5V
I/O channels2
Data interfaceI²C
Operating temperature-40°C~125°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesPGA, Selectable Address
ArchitectureSigma-Delta
ConfigurationMUX-PGA-ADC
Number of bits16
Case10-XFQFN
Number of a (D converters)1
Sampling rate (Per second)860
100% Footprint Match · Solder-Ready (No PCB Redesign Needed)

Need Stock or a Drop-in Second-Source for ADS1115IRUGT?

Package: MSOP-10 / QFN-10 · Pin-compatible replacements with immediate Shenzhen spot stock

Footprint Match 99%
Supply Chain & Allocation Reality:

The ADS1x1x family is the I2C ADC of the instrument and sensor world: 16-bit for the 111x branch, 12-bit for the 101x branch, one shared pinout and one shared register map, so the same driver code runs both with a data-alignment footnote. The channel and PGA ladder inside each branch does the real selection: x113 without gain, x114 with gain on one channel, x115 with the four single-ended inputs that every voltage-logging project leans on. The buying story is short because the family is honest: the only substitution mistake that costs anything is fitting the 12-bit part where a 16-bit budget was specified - the sockets agree, the numeric result does not.

Verified Pin-Compatible Replacements (3 verified alternatives)

ADS1015 Texas Instruments MSOP-10 / QFN-10
100% Drop-in (Zero Code Change)
Availability & Target Pricing:

The 12-Bit Branch - Faster, Cheaper

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

Pin-identical and register-identical to the ADS1115 at 12-bit resolution and up to 3300SPS (against 16-bit / 860SPS): the same four single-ended inputs, the same PGA ranges from +/-6.144V down to +/-0.256V.

Same supply and I2C envelope; base address 0x48 set through the ADDR pin.

Compatibility & Drop-In Notes: The honest decision matrix: buy the 1015 when the signal budget is 12-bit and the sample rate matters; buy the 1115 when the resolution matters. Fitting the 1015 into a 16-bit bill of materials is not a failure - it is a quiet loss of resolution that calibration paperwork may reference.
Package & Solder Footprint: Same MSOP-10 / QFN-10 land pattern.
Shenzhen Warehouse Stock & MOQ: Volume stock; the module world carries both.
Request Volume Quote for ADS1015 Compare ADS1115IRUGT vs ADS1015 Spec Matrix
ADS1114 Texas Instruments MSOP-10
Pin-to-Pin (Minor Clock/Init Tuning)
Availability & Target Pricing:

The Single-Channel Member

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The one-input member of the 16-bit branch: a single differential channel with PGA and comparator - the pins beyond AIN0 are not populated.

Same envelope; same 0x48 addressing scheme.

Compatibility & Drop-In Notes: In repair and module work the populated-channel question is the practical one: a code path written to sweep four channels reads nonsense from a single-channel member. Check the marking, then the channel count in software.
Package & Solder Footprint: Shared land pattern - the body does not tell which member it is.
Shenzhen Warehouse Stock & MOQ: Stocked with the family; verify the suffix.
Request Volume Quote for ADS1114 Compare ADS1115IRUGT vs ADS1114 Spec Matrix
ADS1113 Texas Instruments MSOP-10
Pin-to-Pin (Minor Clock/Init Tuning)
Availability & Target Pricing:

The No-PGA Member

Shenzhen Spot Stock (24-48h Dispatch)

Electrical & Core Specs:

The plainest member: 16-bit, one input, no PGA and no comparator - the resolution without the gain stage.

Same envelope and addressing.

Compatibility & Drop-In Notes: The substitution direction: PGA members can impersonate the 113 within the fixed-gain input range; the reverse cannot create gain. In low-level signal work, order the member with the gain.
Package & Solder Footprint: Shared footprint across the family.
Shenzhen Warehouse Stock & MOQ: Stocked; the cost-down rung for fixed-range logging.
Request Volume Quote for ADS1113 Compare ADS1115IRUGT vs ADS1113 Spec Matrix
Buyer & Quality Checklist for Sourcing Alternatives
  • Resolution decides the branch, channels decide the member: 16-bit 111x (860SPS) against 12-bit 101x (3300SPS); x113 one input no PGA, x114 one input with PGA, x115 four single-ended with PGA. Same pins and registers throughout - the suffix is the whole specification.
  • The 12-bit branch left-aligns its result in the 16-bit register: driver code must shift or it reads 16x value. Established libraries handle it; hand-rolled SPI/I2C code is where this bites.
  • The PGA input ranges run from +/-6.144V down to +/-0.256V: measuring a 50mV shunt without the gain stage throws away most of the resolution the family exists for. Match the member to the signal amplitude.
  • Inputs must stay inside the supply rails even with gain configured - the absolute-maximums do not negotiate, and sensor wiring that floats above VDD turns a measurement project into a diagnosis project.
  • Addressing is one pin (0x48 base): multiple converters on one bus need the ADDR pin staged per device - the family supports four addresses and no more without a multiplexer.
  • The module boards around this family vary in input protection and reference quality: a genuine 16-bit part on a module with lazy input networks still reads 16-bit values, just not 16 bits of truth.
Frequently Asked Technical Questions

Q: What is the difference between ADS1115 and ADS1015?

A: Resolution and speed: the 1115 is 16-bit at up to 860 samples per second, the 1015 is 12-bit at up to 3300. Same pinout, same register map, same driver with one data-alignment difference - the 12-bit result is left-aligned in the 16-bit register.

Q: Can I swap ADS1115 and ADS1015 boards or code?

A: Hardware yes - same footprint and addressing. Code from the established driver libraries branches automatically; hand-written drivers must respect the alignment and the resolution-dependent scaling.

Q: Which member has the four inputs?

A: The x115 of either branch: four single-ended (or two differential) channels with PGA and comparator. The x114 is one input with gain, and the x113 is one input without - all in the same ten-pin body.

Technical details

16-bit precision ADC for tight spaces

It accepts two differential or four single-ended inputs through the on-chip MUX, and communicates over an I2C interface. The PGA offers selectable gains up to ±256 mV full-scale, letting you digitize small sensor signals directly without an external amplifier.

Sampling rate and supply flexibility

Sampling rate is 860 samples per second — suited for low-bandwidth measurements like temperature, pressure, or battery voltage monitoring. The internal reference eliminates one external BOM line, though its drift sets the accuracy floor for the system.

The 10-XFQFN package is a fine-pitch no-lead design — the 0.40 mm pad pitch requires a well-controlled solder paste stencil and a reflow profile matched to the board thickness.

The base product number ADS1115 covers multiple package and temperature variants; the IRUGT suffix identifies this specific tape-and-reel, X2QFN-packaged, -40°C to 125°C grade part.

ADS1115IRUGT
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