ADS1114集成電路（IC）的模數轉換器（ADC）規(guī)格書PDF中文資料

1 Features

? AEC-Q100 qualified for automotive applications:

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

? 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

? I2C 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, I2C-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.