1 Features

• Ultra-small packages:

– X2QFN: 2mm × 1.5mm × 0.4mm

– SOT: 2.9mm × 2.8mm × 0.6mm

• Wide supply range: 2.0V to 5.5V

• Low current consumption: 150μA

(continuous-conversion mode)

• Programmable data rate:

8SPS to 860SPS

• Single-cycle settling

• Internal low-drift voltage reference

• Internal oscillator

• I2C interface: four pin-selectable addresses

• Operating temperature range:

–40°C to +125°C

• Family of devices:

– ADS1113: one single-ended (SE) or differential

(DE) input

– ADS1114: one single-ended or differential input

with comparator and PGA

– ADS1115: four single-ended or two differential

inputs with comparator and PGA

2 Applications

• Portable instrumentation

• Battery voltage and current monitoring

• Temperature measurement systems

• Consumer electronics

• Factory automation and process control

3 Description

The ADS1113, ADS1114, and ADS1115 (ADS111x)

are precision, low-power, 16-bit, I2C-compatible,

analog-to-digital converters (ADCs) offered in a

leadless X2QFN-10, a SOT-10 package, and

VSSOP-10 package. The ADS111x devices

incorporate a low-drift voltage reference and

an oscillator. The ADS1114 and ADS1115 also

incorporate a programmable gain amplifier (PGA)

and a digital comparator. These features, along

with a wide operating supply range, are useful for

power- and space-constrained, sensor measurement

applications.

The ADS111x devices perform conversions at data

rates of up to 860 samples per second (SPS).

The PGA offers input ranges from ±256mV to

6.144V, allowing precise large- and small-signal

measurements. The ADS1115 features an input

multiplexer (MUX) that allows two differential or

four single-ended input measurements. Use the

digital comparator in the ADS1114 and ADS1115 for

undervoltage and overvoltage detection.