ADS1114集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）規(guī)格書PDF中文資料

ADS1114屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由德州儀器制造生產(chǎn)的ADS1114模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號(hào)進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號(hào)。一般來說，數(shù)字輸出是二進(jìn)制補(bǔ)碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。

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.