Product details

Resolution (Bits) 12 Number of input channels 8 Sample rate (Max) (kSPS) 140 Interface type I2C Architecture SAR Input type Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Supply Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features GPIO, Oscillator, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.05 Analog voltage AVDD (Min) (V) 2.35 Analog voltage AVDD (Max) (V) 5.5 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
Resolution (Bits) 12 Number of input channels 8 Sample rate (Max) (kSPS) 140 Interface type I2C Architecture SAR Input type Single-Ended Multi-channel configuration Multiplexed Rating Catalog Reference mode Supply Input range (Max) (V) 5.5 Input range (Min) (V) 0 Features GPIO, Oscillator, Small Size Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 0.05 Analog voltage AVDD (Min) (V) 2.35 Analog voltage AVDD (Max) (V) 5.5 Digital supply (Min) (V) 1.65 Digital supply (Max) (V) 5.5
WQFN (RTE) 16 9 mm² 3 x 3
  • Small package size:
    • 3-mm × 3-mm WQFN
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +85°C temperature range
  • I2C interface:
    • Up to 3.4 MHz (high-speed mode)
    • 8 configurable I2C addresses
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution for average output
  • Small package size:
    • 3-mm × 3-mm WQFN
  • 8 channels configurable as any combination of:
    • Up to 8 analog inputs, digital inputs, or digital outputs
  • GPIOs for I/O expansion:
    • Open-drain, push-pull digital outputs
  • Wide operating ranges:
    • AVDD: 2.35 V to 5.5 V
    • DVDD: 1.65 V to 5.5 V
    • –40°C to +85°C temperature range
  • I2C interface:
    • Up to 3.4 MHz (high-speed mode)
    • 8 configurable I2C addresses
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution for average output

The TLA2528 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for ADC conversion processes.

The TLA2528 communicates via an I2C-compatible interface and supports standard-mode (100 kHz), fast-mode (400 kHz), fast-mode plus (1 MHz), and high-speed mode (3.4 MHz). Up to eight I2C addresses can be selected for the TLA2528 by connecting a resistor on the ADDR pin.






The TLA2528 is an easy-to-use, 8-channel, multiplexed, 12-bit, successive approximation register analog-to-digital converter (SAR ADC). The eight channels can be independently configured as either analog inputs, digital inputs, or digital outputs. The device has an internal oscillator for ADC conversion processes.

The TLA2528 communicates via an I2C-compatible interface and supports standard-mode (100 kHz), fast-mode (400 kHz), fast-mode plus (1 MHz), and high-speed mode (3.4 MHz). Up to eight I2C addresses can be selected for the TLA2528 by connecting a resistor on the ADDR pin.






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Technical documentation

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Type Title Date
* Data sheet TLA2528 Small, 8-Channel, 12-Bit ADC With I2C Interface and GPIOs datasheet (Rev. A) PDF | HTML 27 Apr 2020
Application note Resolution-Boosting ADS7138 Using Programmable Averaging Filter 01 Dec 2019
User guide BP-ADS7128 BoosterPack™ Plug-In Module User's Guide 21 May 2019
Technical article Leverage coherent sampling and FFT windows when evaluating SAR ADCs (Part 1) 13 Mar 2015

Design & development

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