ADS111XL中文资料德州仪器数据手册PDF规格书

1 Features

• Supply voltage range: 2.0 V to 3.6 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

• Digital comparator with ALERT output pin

• I2C interface:

– Four pin-selectable address

– Compatible with 1.8-V I2C bus voltages

• Operating temperature range:

– –40°C to +125°C

2 Applications

• General system monitoring:

– Supply-voltage monitoring

– Current measurement

– Temperature measurement

• Wearables and personal electronics

3 Description

The ADS1114L and ADS1115L (ADS111xL) are

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

digital converters (ADCs) offered in ultra-small, 12-

pin DSBGA and a 10-pin VSSOP packages. The

ADS111xL incorporate a low-drift voltage reference

and an oscillator. The ADS111xL also incorporate

a programmable gain amplifier (PGA) and a

digital comparator. These features, along with the

device wide operating supply range, are useful for

power- and space-constrained, sensor measurement

applications.

The ADS111xL 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

ADS1115L features an input multiplexer (MUX) that

allows two differential or four single-ended input

measurements. Use the digital comparator in the

ADS111xL for under- and overvoltage detection.