TLA2022

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12-Bit 1-Ch Delta-Sigma ADC w/ Voltage Reference, Oscillator, PGA, and I2C for Low-Cost Applications

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Product details

Parameters

Resolution (Bits) 12 Number of input channels 1 Sample rate (Max) (kSPS) 3.3 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-Ended Multi-channel configuration Rating Catalog Reference mode Int Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.3 Analog voltage AVDD (Min) (V) 2 Analog voltage AVDD (Max) (V) 5.5 Digital supply (Min) (V) 2 Digital supply (Max) (V) 5.5 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

X2QFN (RUG) 10 3 mm² 1.5 x 2 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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

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Description

The TLA2021, TLA2022, and TLA2024 devices (TLA202x) are easy-to-use, low-power, 12-bit delta-sigma (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 single-shot 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.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet TLA202x Cost-Optimized, Ultra-Small, 12-Bit, System-Monitoring ADCs datasheet Nov. 17, 2017
E-book Fundamentals of Precision ADC Noise Analysis Jun. 19, 2020
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Application note Digital Filter Types in Delta-Sigma ADCs Jun. 27, 2017
Application note How delta-sigma ADCs work, Part 1 (Rev. A) Sep. 19, 2016
Application note How delta-sigma ADCs work, Part 2 Nov. 09, 2011

Design & development

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Design tools & simulation

SIMULATION MODEL Download
SBAM369.ZIP (14 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
CALCULATION TOOL Download
Analog-to-digital converter (ADC) input driver design tool supporting multiple input types
ADC-INPUT-CALC ADC-INPUT-CALC is an online tool that provides support for designing the input buffer to an analog-to-digital converter (ADC). It offers 24 different op-amp based buffer circuits that can be used to drive an ADC input. The available topologies cover differential, single-ended and transformer-coupled (...)
CALCULATION TOOL Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

CAD/CAE symbols

Package Pins Download
X2QFN (RUG) 10 View options

Ordering & quality

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