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TLA2518

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

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Product details

Parameters

Resolution (Bits) 12 Number of input channels 8 Sample rate (Max) (kSPS) 1000 Interface type Enhanced 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 open-in-new Find other Precision ADCs (<=10MSPS)

Package | Pins | Size

WQFN (RTE) 16 9 mm² 3 x 3 open-in-new Find other Precision ADCs (<=10MSPS)

Features

  • 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

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Description

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

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TLA2518 Small, 8-Channel, 12-Bit ADC with SPI Interface and GPIOs datasheet (Rev. B) Jun. 16, 2020
Application notes Resolution-Boosting ADS7138 Using Programmable Averaging Filter Dec. 01, 2019
User guides BP-ADS7128 BoosterPack™ Plug-In Module User's Guide May 21, 2019

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The BP-ADS7128 BoosterPack™ plug-in module is a platform for evaluating the performance of the successive approximation register (SAR) analog-to-digital converter (ADC) ADS7128 device and family of devices, which are analog, nanopower, eight-input-channel devices with an I/O expander.

BP-ADS7128 is (...)

Features
  • Hardware and software required for diagnostic testing, as well as accurate performance evaluation of ADS7128 SAR ADC
  • USB powered; no external power supply required
  • Pairs with MSP-EXP432E401Y LaunchPad™ development kit, providing a convenient communication interface over a USB for power delivery (...)

Design tools & simulation

SIMULATION MODELS Download
SBAM431.ZIP (11 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBAM432.TSC (272 KB) - TINA-TI Reference Design
SIMULATION TOOLS 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 TOOLS 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 (...)
document-generic User guide
CALCULATION TOOLS 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 TOOLS 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
WQFN (RTE) 16 View options

Ordering & quality

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