TLA2021IRUGR.B中文资料德州仪器数据手册PDF规格书

1 Features

1. Industry’s Lowest-Cost 12-Bit Delta-Sigma ADCs

. Ultra-Small X2QFN Package: 2 mm × 1.5 mm

. Highly Integrated:

. 4 Single-Ended or 2 Differential Inputs Make

the TLA2024 the Industry’s Highest Channel

Density ADC (0.75 mm² per Channel)

. PGA (TLA2022 and TLA2024 Only)

. Voltage Reference

. Oscillator

. Low Current Consumption: 150 μA

. Wide Supply Range: 2 V to 5.5 V

. Programmable Data Rate: 128 SPS to 3.3 kSPS

. I2C™ Compatible Interface:

. Supports Standard-Mode and Fast-Mode

. Three Pin-Selectable I2C Addresses

. Operating Temperature Range: .40°C to +85°C

2 Applications

. Personal Electronics:

. TVs, Tablets, Cell Phones

. Wearables

. Drones, Toys

. Home and Kitchen Appliances

. Building Automation:

. HVACs, Smoke Detectors

. Battery Voltage and Current Monitoring

. Temperature Sensing

. Battery-Powered, Portable Instrumentation

3 Description

The TLA2021, TLA2022, and TLA2024 devices

(TLA202x) are easy-to-use, low-power, 12-bit deltasigma

(ΔΣ) analog-to-digital converters (ADCs)

targeted for any type of system-monitoring

applications (such as supply or battery voltage

supervision, current sensing, or temperature

measurements). Offered in an ultra-small, leadless,

10-pin X2QFN package, the TLA2021 and TLA2022

are single-channel ADCs while the TLA2024 features

a flexible input multiplexer (MUX) with two differential

or four single-ended input measurement options.

The TLA202x integrate a voltage reference and

oscillator. Additionally, the TLA2022 and TLA2024

include a programmable gain amplifier (PGA) with

selectable input ranges from ±256 mV to ±6.144 V,

enabling both large- and small-signal measurements.

The TLA202x communicate via an I2C-compatible

interface and operate in either continuous or singleshot

conversion mode. The devices automatically

power down after one conversion in single-shot

conversion mode, significantly reducing power

consumption during idle periods.

All of these features, along with a wide operating

supply voltage range, make the TLA202x suitable for

power- and space-constrained, system-monitoring

applications.