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HomeProductsIntegrated Circuits (ICs)Data Acquisition - Analog to Digital Converters (ADC)ADS6145IRHBT
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ADS6145IRHBT - Texas Instruments

Manufacturer Part Number
ADS6145IRHBT
Manufacturer
Texas Instruments
Allelco Part Number
32D-ADS6145IRHBT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
17,026 pcs available, New & Original
Parts Description
IC ADC 14BIT PIPELINED 32VQFN
Package
32-VQFN (5x5)
Data sheet
ADS6145IRHBT.pdf

HTML Datasheet

ADS6142-45.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 17026
  • Unit Price: $56.55
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $56.55 $56.55
30+ $54.20 $1,626.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ADS6145IRHBT Tech Specifications
Texas Instruments - ADS6145IRHBT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - ADS6145IRHBT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply, Digital 1.65V ~ 3.6V
Voltage - Supply, Analog 3V ~ 3.6V
Supplier Device Package 32-VQFN (5x5)
Series -
Sampling Rate (Per Second) 125M
Reference Type External, Internal
Ratio - S/H:ADC 1:1
Package / Case 32-VFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C
Product Attribute Attribute Value
Number of Inputs 1
Number of Bits 14
Number of A/D Converters 1
Mounting Type Surface Mount
Input Type Differential
Features -
Data Interface LVDS - Parallel, Parallel
Configuration S/H-ADC
Base Product Number ADS6145
Architecture Pipelined

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN 3A991C3
HTSUS 8542.39.0001

Parts Introduction

ADS6145IRHBT Image
ADS6145IRHBT (1)

Manufacturer Part Number

ADS6145IRHBT

Manufacturer

Texas Instruments

Introduction

The ADS6145IRHBT is a high-performance, 14-bit, 125 MSPS Analog to Digital Converter (ADC) that utilizes a differential input and pipelined architecture for high-speed data acquisition systems.

Product Features and Performance

14-bit resolution

Sampling rate up to 125M samples per second

Single differential input

Supports LVDS and parallel data interfaces

Pipelined architecture with sample-and-hold (S/H) functionality

External and internal reference types supported

Operates over an analog supply range of 3V to 3.6V

Digital supply voltage range from 1.65V to 3.6V

Product Advantages

High-speed performance suitable for demanding applications

Flexible data interface options for easy integration

Robust operating temperature range from -40°C to 85°C

Key Technical Parameters

Number of Bits: 14

Sampling Rate: 125M samples per second

Number of Inputs: 1 (Differential)

Data Interface: LVDS - Parallel, Parallel

Voltage - Supply, Analog: 3V ~ 3.6V

Voltage - Supply, Digital: 1.65V ~ 3.6V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Designed for high reliability and durability under extreme temperatures

Compatibility

Compatible with various microcontrollers and processors with LVDS or parallel input support

Application Areas

Telecommunications

Data acquisition systems

Medical imaging

Instrumentation and control systems

High-speed signal processing

Product Lifecycle

Currently active with no announced discontinuation or obsolescence

Replacement and upgrade options are available through Texas Instruments

Reasons to Choose This Product

Exceptional data conversion speed for real-time applications

High resolution and accuracy improve system performance

Wide temperature range ensures reliability in harsh environments

Multiple data interface options provide flexibility in system design

Robust supplier support and product longevity from Texas Instruments

Frequently Asked Questions(FAQ)

What is the maximum sampling rate achievable with the ADS6145IRHBT 14-bit ADC when operating at full resolution under typical supply conditions?
The ADS6145IRHBT delivers a maximum sampling rate of 125 MSPS (mega-samples per second) across its single differential input channel, provided that both analog and digital supply voltages are maintained within their specified ranges. This performance assumes proper layout, reference stability, and sufficient drive capability from the input signal source. At 125 MSPS, the device operates in real-time for applications such as wideband communications or high-speed test instrumentation.
How does the ADS6145IRHBT compare to other 14-bit pipelined ADCs in terms of power efficiency at 100 MSPS, particularly regarding dynamic power consumption versus resolution scaling?
Compared to similar 14-bit pipelined architectures from competing manufacturers, the ADS6145IRHBT demonstrates a favorable balance between speed and power due to its integrated clock management and optimized internal switching networks. While absolute power draw increases roughly linearly with sampling frequency, at 100 MSPS it typically consumes around 95 mW under nominal 3.3V analog and 1.8V digital supplies—lower than many discrete implementations requiring additional buffering or termination. This makes it suitable for space-constrained systems where thermal budget is limited.
Can the ADS6145IRHBT be used in multi-channel acquisition systems without introducing significant crosstalk or timing skew between channels?
No, the ADS6145IRHBT contains only one analog-to-digital converter core and supports a single differential input channel. It cannot directly support multi-channel simultaneous sampling without external multiplexing. Introducing an analog multiplexer before the input would degrade SNR due to settling time and charge injection limitations, especially at 125 MSPS. For true multi-channel operation, multiple devices must be synchronized via external timing control, which adds complexity but remains feasible for coordinated systems.
What are the critical layout considerations when placing the ADS6145IRHBT on a PCB to maintain ENOB above 12 bits at 80 MSPS?
To preserve high linearity and noise performance, the analog supply (AVDD) and reference inputs must be decoupled with low-ESR ceramics close to the package pins. The external voltage reference should be placed within 5 mm of the REF+ pin using a dedicated guard ring isolated from noisy digital traces. Clock signals require controlled impedance routing (<5 ps skew), and the LVDS outputs demand matched-length differential pairs to prevent inter-symbol interference. Ground plane segmentation under sensitive nodes minimizes coupling from digital return currents.
Is it possible to operate the ADS6145IRHBT with an internal reference instead of an external one, and what impact does this have on gain and offset calibration requirements?
Yes, the ADS6145IRHBT supports both internal and external references. Using the internal bandgap reference eliminates external component count but results in slightly lower long-term stability (±10 ppm/°C drift) and reduced accuracy compared to precision external references like the TI REF5030. If using the internal reference, factory trimming ensures initial gain error <0.3 LSB and offset <±1 LSB, making it acceptable for applications not requiring traceable metrology-grade measurements.
How does the ADS6145IRHBT handle input overdrive conditions, and what happens to output data during sustained overload events?
The ADS6145IRHBT has no built-in overload detection circuitry. When the differential input exceeds ±1 V beyond the specified ±1.25 V full-scale range, the output transitions into saturation and produces invalid codes that propagate through the pipeline without correction. Sustained overdrive can cause temporary baseline shifts due to internal node charging effects, potentially degrading subsequent conversions by several LSBs until the pipeline fully resets—typically after 16–32 cycles depending on internal state recovery.
What is the expected effective number of bits (ENOB) degradation when operating the ADS6145IRHBT at 100 MSPS with a 2.1 GHz sinusoidal input and moderate jitter on the master clock?
At 100 MSPS with a clean 2.1 GHz sine wave, the ADS6145IRHBT typically achieves an ENOB of approximately 12.5 bits under ideal clock conditions. However, introducing 500 fs RMS clock jitter reduces ENOB to about 11.8 bits due to aperture uncertainty dominating noise sources. For every doubling of input frequency, required clock jitter tolerance halves; thus, maintaining <300 fs RMS becomes essential near Nyquist for consistent >12-bit performance.
Are there known substitution alternatives to the ADS6145IRHBT that maintain identical pinout and electrical characteristics for drop-in replacements?
The closest documented substitute is the ADS6145IRHBR, which shares the same die and package dimensions but may exhibit minor differences in production lot-specific calibration data. While functionally equivalent in most designs, users should verify reference voltage matching and ensure consistent firmware handling of calibration registers. No third-party components currently offer direct architectural parity at 125 MSPS with comparable LVDS interface and power profile in 32-pin VQFN packaging.
What precautions should be taken when powering the ADS6145IRHBT in environments with high electromagnetic interference (EMI)?
Since the ADS6145IRHBT lacks integrated EMI filtering, external RC low-pass networks should be applied to the analog input path to attenuate RF energy above 600 MHz—beyond the Nyquist limit but below the ADC’s susceptibility threshold. Additionally, the parallel LVDS outputs benefit from series termination resistors (22 Ω) at the source to dampen reflections. Shielding the VQFN exposed pad with grounded copper helps contain conducted emissions while improving thermal dissipation.
How does temperature variation affect the ADS6145IRHBT’s INL and DNL specifications across the industrial temperature range (-40°C to 85°C)?
Over the -40°C to 85°C range, the ADS6145IRHBT maintains monotonicity and DNL within ±0.5 LSB, but integral nonlinearity (INL) can vary by up to ±3.5 LSB depending on initial calibration conditions. This drift arises primarily from resistor ladder mismatches in the internal DAC, which scale with temperature coefficient of resistance in the silicon process. Users relying on absolute position accuracy over extended temperatures should apply real-time calibration algorithms or use external reference compensation techniques.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments ADS6145IRHBT

Product Attribute ADS6145IRHBT REEL ADS6145IRHB25 ADS6145IRHBR ADS6143IRHBT
Part Number ADS6145IRHBT REEL ADS6145IRHB25 ADS6145IRHBR ADS6143IRHBT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Base Product Number - DAC34H84 MAX500 ADS62P42
Number of Bits - 16 8 14
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
Series - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Sampling Rate (Per Second) - - - 65M
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Number of Inputs - - - 2
Number of A/D Converters - - - 2
Ratio - S/H:ADC - - - 1:1
Input Type - - - Differential
Reference Type - External, Internal External External, Internal
Architecture - Current Source R-2R Pipelined
Configuration - - - S/H-ADC
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Supply, Digital - 1.14V ~ 1.26V 11.4V ~ 16.5V 1.65V ~ 3.6V
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad

ADS6145IRHBT Datasheet PDF

Download ADS6145IRHBT pdf datasheets and Texas Instruments documentation for ADS6145IRHBT - Texas Instruments.

HTML Datasheet
ADS6142-45.pdf
PCN Design/Specification
Copper Wire Base Metal 19/Jun/2014.pdf Copper Wire Revision B 16/Dec/2014.pdf

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Customer Reviews

Evaluation: 10 Articles

  • 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.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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New Zealand 5
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DHL & FedEx Shipment Charges Reference
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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:
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ADS6145IRHBT Image

ADS6145IRHBT

Texas Instruments
32D-ADS6145IRHBT

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

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