Texas Instruments ADS1114 Handleiding

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ADS111x Ultra-Small, Low-Power, I

2

C-Compatible, 860SPS, 16-Bit ADCs

with Internal Reference, Oscillator, and Programmable Comparator

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

•I

2

C 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, I

2

C-compatible,

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

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

a 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.

Package Information

PART NUMBERPACKAGE

(1)

PACKAGE SIZE

(2)

ADS111x

RUG (X2QFN, 10)1.50mm × 2.00mm

DYN (SOT, 10)2.90mm × 2.80mm

DGS (VSSOP, 10)3.00mm × 4.90mm

(1)For more information, see Section 14.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

Device Information

PART NUMBERINPUT CHANNELSFEATURES

(1)

ADS11131 DE (1 SE)—

ADS11141 DE (1 SE)PGA, comparator

ADS11152 DE (4 SE)PGA, comparator

(1)See the Device Comparison Table for details.

Voltage

Reference

Oscillator

SCL

SDA

ADDR

ADS1113

AIN1

GND

AIN0

VDD

I

2

C

Interface

16-Bit



ADC

ADS1114

Oscillator

Comparator

ALERT/

RDY

PGA

ADS1115

AIN0

AIN1

AIN2

AIN3

AIN1

AIN0

MUX

SCL

SDA

ADDR

I

2

C

Interface

16-Bit



ADC

Voltage

Reference

Oscillator

Comparator

ALERT/

RDY

PGA

SCL

SDA

ADDR

I

2

C

Interface

16-Bit



ADC

Voltage

Reference

GND

VDD

GND

VDD

Simplified Block Diagrams

ADS1113, ADS1114, ADS1115

SBAS444E – MAY 2009 – REVISED DECEMBER 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties