Texas Instruments ADS1115-Q1 Handleiding

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ADS111x-Q1 Automotive, Low-Power, I

2

C-Compatible, 860-SPS, 16-Bit ADCs

With Internal Reference, Oscillator, and Programmable Comparator

1 Features

•AEC-Q100 qualified for automotive applications:

–Temperature grade 1: –40°C to +125°C, T

A

•Functional Safety-Capable

–Documentation available to aid functional safety

system design

•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

•I

2

C 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

2 Applications

•Camera modules without processing

•Automotive center information displays

•Automotive cluster displays

•General-purpose voltage and current monitoring

3 Description

The ADS1113-Q1, ADS1114-Q1, and ADS1115-Q1

devices (ADS111x-Q1) are precision, low-power,

16-bit, I

2

C-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.

Package Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

ADS111x-Q1

DGS (VSSOP, 10)3.00 mm × 3.00 mm

NKS (UQFN, 10)1.60 mm × 2.00 mm

(1)For all available packages, see the package option

addendum at the end of the data sheet.

Table 3-1. Device Information

PART NUMBERINPUT CHANNELSFEATURES

(1)

ADS1113-Q11 DE (1 SE)—

ADS1114-Q11 DE (1 SE)PGA, comparator

ADS1115-Q12 DE (4 SE)PGA, comparator

(1)See the Device Comparison Table for details.

Voltage

Reference

Oscillator

SCL

SDA

ADDR

ADS1113-Q1

AIN1

GND

AIN0

VDD

I

2

C

Interface

16-Bit



ADC

ADS1114-Q1

Oscillator

Comparator

ALERT/

RDY

PGA

ADS1115-Q1

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-Q1, ADS1114-Q1, ADS1115-Q1

SBAS563E – DECEMBER 2011 – REVISED DECEMBER 2022

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