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.