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TLA2022

ACTIVE

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

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Data sheet

TLA2022

ACTIVE
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Product details

Resolution (Bits) 12 Sample rate (max) (ksps) 3.3 Number of input channels 1 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.3 Analog supply (min) (V) 2 Analog supply voltage (max) (V) 5.5 Digital supply (min) (V) 2 Digital supply (max) (V) 5.5
Resolution (Bits) 12 Sample rate (max) (ksps) 3.3 Number of input channels 1 Interface type I2C Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode Internal Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator, PGA, Small Size Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 0.3 Analog supply (min) (V) 2 Analog supply voltage (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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Type Title Date
* Data sheet TLA202x Cost-Optimized, Ultra-Small, 12-Bit, System-Monitoring ADCs datasheet PDF | HTML 17 Nov 2017
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18 Mar 2024
Application note QFN and SON PCB Attachment (Rev. C) PDF | HTML 06 Dec 2023
Application note Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29 Mar 2023
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
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

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