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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Analog to Digital Converters (ADC)TLA2518IRTER
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TLA2518IRTER - Texas Instruments

Manufacturer Part Number
TLA2518IRTER
Manufacturer
Texas Instruments
Allelco Part Number
32D-TLA2518IRTER
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
19,120 pcs available, New & Original
Parts Description
IC ADC 12BIT SAR 16WQFN
Package
16-WQFN (3x3)
Data sheet
TLA2518IRTER.pdf

PCN Design/Specification

ADS7038/TLA2518 30/Jul/2020.pdf

HTML Datasheet

TLA2518.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 19120
  • Unit Price: $2.526
  • Subtotal: $0.00

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Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
1+ $2.526 $2.53
10+ $2.201 $22.01
30+ $2.007 $60.21
100+ $1.812 $181.20
500+ $1.721 $860.50
1000+ $1.68 $1,680.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

TLA2518IRTER Tech Specifications
Texas Instruments - TLA2518IRTER technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TLA2518IRTER

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Digital 1.65V ~ 5.5V
Voltage - Supply, Analog 2.35V ~ 5.5V
Supplier Device Package 16-WQFN (3x3)
Series -
Sampling Rate (Per Second) 1M
Reference Type Supply
Ratio - S/H:ADC 0:1
Package / Case 16-WFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C
Product Attribute Attribute Value
Number of Inputs 8
Number of Bits 12
Number of A/D Converters 1
Mounting Type Surface Mount
Input Type Pseudo-Differential
Features Internal Oscillator
Data Interface SPI
Configuration MUX-ADC
Base Product Number TLA2518
Architecture SAR

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

TLA2518IRTER Image
TLA2518IRTER (1)

Manufacturer Part Number

TLA2518IRTER

Manufacturer

Texas Instruments

Introduction

High-performance 12-bit analog-to-digital converter (ADC) with 8 pseudo-differential input channels

Product Features and Performance

12-bit resolution

1 MSPS sampling rate

Pseudo-differential input type

8 input channels

Internal oscillator

1:0 sample-and-hold to ADC ratio

Product Advantages

Wide supply voltage range of 1.65V to 5.5V

Low power consumption

Small 16-WQFN (3x3) package

Wide operating temperature range of -40°C to 85°C

Key Technical Parameters

12-bit resolution

1 MSPS sampling rate

8 pseudo-differential input channels

65V to 5.5V supply voltage range

-40°C to 85°C operating temperature range

Quality and Safety Features

RoHS3 compliant

Compatibility

Surface mount package

Tape and reel packaging

Application Areas

Data acquisition systems

Industrial automation

Medical equipment

Portable electronics

Instrumentation

Product Lifecycle

Currently available

No information on discontinuation or replacement

Key Reasons to Choose This Product

High-performance 12-bit ADC with 8 input channels

Wide supply voltage and temperature range

Low power consumption

Small and compact package

Suitable for a variety of data acquisition applications

Frequently Asked Questions(FAQ)

What are the key differences in supply voltage requirements between the analog and digital domains for the TLA2518IRTER, and how does this affect system-level power budgeting?
The TLA2518IRTER supports an analog supply voltage range of 2.35V to 5.5V and a digital supply voltage range of 1.65V to 5.5V, enabling flexible power domain management. This dual-supply architecture allows designers to optimize noise performance by using a stable higher voltage for the analog section while operating the digital interface at lower core logic levels. In battery-powered systems, this flexibility can reduce overall power consumption by matching the digital supply to MCU I/O thresholds without requiring additional level-shifting circuitry.
How does the pseudo-differential input configuration of the TLA2518IRTER influence noise immunity compared to single-ended inputs when measuring slow-changing sensor signals?
Pseudo-differential inputs reject common-mode noise by comparing the signal against a reference channel, which significantly improves rejection of electromagnetic interference and ground shifts in noisy industrial environments. For the TLA2518IRTER, this means measurements on channels like INP0 vs INN0 will be immune to voltage fluctuations present equally on both pins—critical when interfacing with thermocouples or strain gauges near motor drives or switching power supplies.
Can the TLA2518IRTER operate reliably in automotive environments where temperature extremes and transient disturbances are common?
While the TLA2518IRTER is rated from -40°C to 85°C, it lacks AEC-Q100 qualification, so its long-term reliability under automotive stress conditions cannot be guaranteed. Designers should perform accelerated life testing if used in safety-critical applications. The internal oscillator provides robustness against external clock jitter but does not compensate for thermal drift in sampling capacitors over extended warm-up periods.
What impact does the 1 MSPS sampling rate have on anti-aliasing filter design when acquiring signals with bandwidths exceeding 200 kHz?
With a 1 MSPS maximum rate, the Nyquist frequency is 500 kHz, but effective usable bandwidth is typically limited by anti-aliasing roll-off. For signals above 200 kHz, a second-order RC or active low-pass filter must attenuate content beyond ~400 kHz to prevent aliasing into the baseband. Oversampling the SAR converter’s inherent noise floor could improve resolution, but at the cost of increased latency and reduced throughput for real-time applications.
How does the SPI interface timing behave during simultaneous readback of conversion results across multiple channels configured in multiplex mode?
When scanning multiple inputs via the internal multiplexer, each conversion requires a full SPI transaction to retrieve 12 bits plus status flags. At 1 MSPS per channel, reading eight channels sequentially would consume 96 kSPS aggregate data rate, demanding fast SPI clocks (e.g., >10 MHz) to avoid buffer overflow. Burst reads with auto-increment addressing minimize overhead but still require precise synchronization between ADC completion and host fetch cycles.
What considerations apply when substituting the TLA2518IRTER with alternative models like the TLA2518IRTET?
The TLA2518IRTET differs only in packaging—tape-and-reel versus cut tape—and lead finish, with identical electrical characteristics. Substitution is generally safe provided layout parasitics remain consistent; however, slight variations in exposed pad soldering profiles may affect thermal performance in high-duty-cycle conversions. Always verify PCB land pattern compatibility before swapping parts in production designs.
Does the internal oscillator eliminate the need for an external crystal in all application scenarios?
The TLA2518IRTER includes an internal oscillator that bypasses external crystals, simplifying board layout and reducing component count. However, oscillator accuracy (±2% typical) limits calibration precision in high-resolution metrology applications. In systems requiring tight timing alignment between multiple ADCs or synchronized sampling, an external clock source offers superior stability and jitter performance.
How should decoupling be implemented for optimal noise performance given the TLA2518IRTER’s mixed-signal nature?
Separate analog and digital decoupling networks are essential. Place a 1 µF ceramic capacitor close to the AVCC pin, supplemented by a 0.1 µF and 10 nF pair for broadband filtering. Digital VDD should use a similar strategy with added series ferrite bead if sharing a power rail with noisy digital loads. Ground planes must remain unbroken beneath the 16-WQFN package to prevent digital return currents from coupling into sensitive analog nodes.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TLA2518IRTER

Product Attribute TLA2518IRTET TLA2528IRTER TLA2528IRTET TLA2021IRUGR
Part Number TLA2518IRTET TLA2528IRTER TLA2528IRTET TLA2021IRUGR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Mounting Type - Surface Mount Through Hole Surface Mount
Series - - - -
Ratio - S/H:ADC - - - 1:1
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V
Data Interface - LVDS - Parallel I²C LVDS - Parallel, Parallel
Features - - - Simultaneous Sampling
Voltage - Supply, Analog - 3.14V ~ 3.46V 11.4V ~ 16.5V 3V ~ 3.6V
Configuration - - - S/H-ADC
Number of Bits - 16 8 14
Architecture - Current Source R-2R Pipelined
Sampling Rate (Per Second) - - - 65M
Number of Inputs - - - 2
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of A/D Converters - - - 2
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Reference Type - External, Internal External External, Internal
Input Type - - - Differential

TLA2518IRTER Datasheet PDF

Download TLA2518IRTER pdf datasheets and Texas Instruments documentation for TLA2518IRTER - Texas Instruments.

PCN Design/Specification
ADS7038/TLA2518 30/Jul/2020.pdf
HTML Datasheet
TLA2518.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Emil***rperTech
    Jun 23, 2026

    Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.

  • Liam***terTech
    Jun 15, 2026

    Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • IPC
  • ESD
  • PSMA
TLA2518IRTER Image

TLA2518IRTER

Texas Instruments
32D-TLA2518IRTER

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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