Product details

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, 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
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, 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
X2QFN (RUG) 10 3 mm² 1.5 x 2
  • 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
  • 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

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.

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

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Type Title Date
* Data sheet TLA202x Cost-Optimized, Ultra-Small, 12-Bit, System-Monitoring ADCs datasheet 17 Nov 2017
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs 23 Mar 2022
Application note Low-Side Current Shunt Op-Amp Circuit to 3-V Single-Ended ADC for Cost-Optimized (Rev. A) 29 Sep 2021
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
Application note Digital Filter Types in Delta-Sigma ADCs 27 Jun 2017
Analog Design Journal How delta-sigma ADCs work, Part 1 (Rev. A) 19 Sep 2016
Analog Design Journal How delta-sigma ADCs work, Part 2 09 Nov 2011

Design & development

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Simulation model

TLAX02X IBIS Model

SBAM369.ZIP (14 KB) - IBIS Model
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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ADC-INPUT-CALC — Analog-to-digital converter (ADC) input driver design tool supporting multiple input types

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 (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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