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Precision ADCs (<=10MSPS)

TLA2518

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Small 8-channel 12-bit analog-to-digital converter (ADC) with SPI interface and GPIOs

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Data sheet

TLA2518

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 12 Number of input channels 8 Sample rate (Max) (kSPS) 1000 Interface type SPI 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) 1.5 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) 1000 Interface type SPI 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) 1.5 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:
    • WQFN 3 mm × 3 mm
  • 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
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution
  • Small package size:
    • WQFN 3 mm × 3 mm
  • 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
  • Enhanced-SPI digital interface:
    • High-speed, 60-MHz interface
    • Achieve full throughput with >13.5-MHz SPI
  • Programmable averaging filters:
    • Programmable sample size for averaging
    • Averaging with internal conversions
    • 16-bit resolution

The TLA2518 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, 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 the ADC conversion process.

The TLA2518 communicates via an SPI compatible interface and supports averaging multiple data samples with a single start of conversion. The built-in programmable averaging filters help reduce noise from the analog inputs and reduce the number of data samples required to be read by the host.

The TLA2518 is an easy-to-use, 8-channel, multiplexed, 12-bit, 1-MSPS, 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 the ADC conversion process.

The TLA2518 communicates via an SPI compatible interface and supports averaging multiple data samples with a single start of conversion. The built-in programmable averaging filters help reduce noise from the analog inputs and reduce the number of data samples required to be read by the host.
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Technical documentation

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Type Title Date
* Data sheet TLA2518 Small, 8-Channel, 12-Bit ADC with SPI Interface and GPIOs datasheet (Rev. B) PDF | HTML 16 Jun 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

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ADS7038Q1EVM-PDK — ADS7038-Q1 8-channel, 1-MSPS, 12-bit ADC evaluation module performance demonstration kit (PDK)

The ADS7038-Q1 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS7038-Q1 successive approximation register (SAR) analog-to-digital converter (ADC). ADS7038Q1EVM-PDK provides power and a communications card to easily connect to the (...)

User guide: PDF | HTML
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Support software

TLA2528 C Header File

SBAC286.ZIP (42 KB)
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Simulation model

TLA2528 TINA-TI Reference Design

SBAM432.TSC (272 KB) - TINA-TI Reference Design
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Simulation model

TLA2528 TINA-TI Spice Model

SBAM431.ZIP (11 KB) - TINA-TI Spice Model
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Calculation tool

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 (...)
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 (...)
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
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Package Pins Download
WQFN (RTE) 16 View options

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