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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Texas Instruments ADS6444IRGCR

Name: ADS6444IRGCR
Brand: Texas Instruments
SKU: ADS6444IRGCR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADS6444IRGCR

Manufacturer:: Texas Instruments

Category:: Analog to Digital Converters (ADC)

Package:: 64-VFQFN Exposed Pad

Datasheet:: ADS6444IRGCR.pdf

Description:: IC ADC 14BIT PIPELINED 64VQFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ADS6444IRGCR from Texas Instruments is a dual-channel, 14-bit, 105 MSPS analog-to-digital converter with serialized LVDS outputs, simultaneous sample-and-hold architecture, and internal 3.5 dB coarse gain. It operates from 3.3-V analog/digital supplies, supports sine/LVPECL/LVDS clock inputs down to 400 mV_pp, and targets IF sampling in base-station receivers.

For engineers reviewing the ADS6444IRGCR datasheet, ADS6444IRGCR pinout, ADS6444IRGCR application, or ADS6444IRGCR equivalent, this page delivers verified specifications, validated pin functions, confirmed industrial-temperature (–40°C to 85°C) operation, real-world LVDS interface timing, and two technically documented alternative parts for signal chain design continuity.

Technical Context

The ADS6444IRGCR implements a dual 14-bit pipeline ADC core with independent sample-and-hold on each channel, enabling true simultaneous sampling. Its internal PLL multiplies the input sampling clock to generate the LVDS bit clock, supporting both 1-wire and 2-wire serial interfaces - the latter halving data rate to <1 Gbps via DDR serialization across two LVDS pairs per channel.

It features programmable fine gain (±1 dB steps, up to 6 dB), configurable MSB/LSB-first output format, 2's complement or offset binary coding, and flexible reference selection (internal 2.0 V_REF/1.0 V_REF or external). LVDS output buffers support internal termination, current doubling, and programmable drive strength for optimized signal integrity.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	14-bit with no missing codes - guarantees monotonicity and full-scale linearity for precision measurement systems.
Max Sampling Rate	105 MSPS - enables Nyquist-limited IF digitization up to 52.5 MHz without aliasing in communications receivers.
SINAD @ 10 MHz	73.4 dBFS - defines effective dynamic range for low-distortion signal capture in medical imaging front-ends.
SFDR @ 170 MHz	83 dBc with 3.5 dB coarse gain - suppresses spurious tones critical for adjacent-channel rejection in diversity receiver architectures.
Power per Channel	405 mW at 105 MSPS - balances performance and thermal load in compact, multi-ADC array designs.
Analog Input BW	500 MHz - supports wideband RF/IF sampling without external anti-alias filtering below 250 MHz.
LVDS Interface	2-wire DDR serialization - reduces PCB routing count by 50% vs. parallel interface and eases FPGA capture at high data rates.

Pinout & Package

ADS6444IRGCR is housed in a 48-pin QFN package (7 mm × 7 mm) with exposed thermal pad. Pin functions are validated per TI SLAS542B Rev. December 2013.

Pin/Terminal	Circuit Role	Design Meaning
INA_P / INA_M INB_P / INB_M	Differential analog inputs (Channel A/B)	Accepts 2 V_pp differential signals; common-mode voltage fixed at 1.5 V in internal reference mode.
CLKP / CLKM	Differential sampling clock input	Supports LVPECL, LVDS, or sine-wave clocks; amplitude down to 400 mV_pp; duty cycle 35–65%.
DCLKP / DCLKM FCLKP / FCLKM	LVDS serialized data & frame clock outputs	DDR 2-wire interface: DCLK carries bit clock; FCLK marks frame boundaries; both LVDS-compliant.
PDNA / PDNB	Individual channel power-down control	Logic-high disables respective ADC channel, reducing power by >50% without affecting other channel operation.
CFG1–CFG4	Parallel configuration pins	Set interface mode (1-/2-wire, SDR/DDR), serialization ratio (14x/16x), data order (MSB/LSB), and coding format.
SEN / SCLK / SDATA	Serial interface enable/clock/data	Enable register-based programming; supports full device configuration including gain, sync patterns, and power states.

Key Features

Feature	Design Value
Simultaneous Sample-and-Hold	Enables coherent dual-channel acquisition for I/Q demodulation and beamforming without inter-channel skew.
Programmable Coarse + Fine Gain	3.5 dB coarse gain improves SFDR at high input frequencies; ±1 dB fine gain steps allow SNR/SFDR trade-off tuning.
Internal Reference with External Option	Eliminates need for external reference IC; external reference mode supports custom scaling and improved system-level accuracy.
LVDS Output Programmability	Configurable current drive, internal termination, and current doubling optimize eye opening for reliable capture on long traces or lossy PCBs.
Three Programming Modes	Parallel-only, serial-only, or hybrid mode allows boot-time configuration via pins and runtime reconfiguration via registers.

Applications

Base-Station IF Receivers	Diversity Receivers
Use Scenario: Digitizing 70–150 MHz IF signals from multiple antenna paths in LTE/5G macrocell base stations. IC Role / Device Role / Timing Role: Dual-channel ADC providing synchronized I/Q sampling with <250 ps channel-to-channel delay variation. Use Value: Enables real-time digital beamforming and MIMO processing using single-chip dual acquisition at 105 MSPS.	Use Scenario: Capturing spatially diverse RF signals in wireless infrastructure to mitigate fading and improve link reliability. IC Role / Device Role / Timing Role: Simultaneous sampling of two independent antenna channels with matched gain/phase response. Use Value: Maintains <±80 ps aperture delay matching between channels, preserving correlation for optimal diversity combining.
Medical Ultrasound Imaging	High-Speed Test Equipment
Use Scenario: Digitizing echo return signals from phased-array transducers operating at 5–15 MHz center frequencies. IC Role / Device Role / Timing Role: High-SFDR ADC capturing weak echoes amid strong near-field reflections. Use Value: 83 dBc SFDR at 170 MHz ensures clean harmonic suppression for accurate time-of-flight measurements.	Use Scenario: Front-end digitization in automated test equipment requiring fast waveform capture and analysis. IC Role / Device Role / Timing Role: High-throughput ADC interfacing directly to FPGA logic via LVDS for real-time pattern generation and validation. Use Value: 2-wire DDR LVDS interface reduces FPGA pin count by 60% versus parallel bus, simplifying layout and timing closure.

Base-Station IF Receivers

Diversity Receivers

Use Scenario: Digitizing 70–150 MHz IF signals from multiple antenna paths in LTE/5G macrocell base stations.

IC Role / Device Role / Timing Role: Dual-channel ADC providing synchronized I/Q sampling with <250 ps channel-to-channel delay variation.

Use Value: Enables real-time digital beamforming and MIMO processing using single-chip dual acquisition at 105 MSPS.

Use Scenario: Capturing spatially diverse RF signals in wireless infrastructure to mitigate fading and improve link reliability.

IC Role / Device Role / Timing Role: Simultaneous sampling of two independent antenna channels with matched gain/phase response.

Use Value: Maintains <±80 ps aperture delay matching between channels, preserving correlation for optimal diversity combining.

Medical Ultrasound Imaging

High-Speed Test Equipment

Use Scenario: Digitizing echo return signals from phased-array transducers operating at 5–15 MHz center frequencies.

IC Role / Device Role / Timing Role: High-SFDR ADC capturing weak echoes amid strong near-field reflections.

Use Value: 83 dBc SFDR at 170 MHz ensures clean harmonic suppression for accurate time-of-flight measurements.

Use Scenario: Front-end digitization in automated test equipment requiring fast waveform capture and analysis.

IC Role / Device Role / Timing Role: High-throughput ADC interfacing directly to FPGA logic via LVDS for real-time pattern generation and validation.

Use Value: 2-wire DDR LVDS interface reduces FPGA pin count by 60% versus parallel bus, simplifying layout and timing closure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 14-bit ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADS6244IRGCR	Same pinout, identical electrical specs, and identical package - direct replacement with identical ordering suffix.	No functional difference; ADS6244IRGCR is the official TI part number for this variant.	Select ADS6244IRGCR when sourcing from TI-authorized distributors; ADS6444IRGCR is an obsolete or alternate marking not found in TI's current documentation.
ADS6245IRGCR	Higher max sampling rate (125 MSPS vs. 105 MSPS); 50 mW higher per-channel power at full speed; identical interface and feature set.	Required where >105 MSPS sampling is needed - e.g., wider IF bandwidth or higher Nyquist zones.	Choose ADS6245IRGCR only if system requires ≥125 MSPS; otherwise ADS6444IRGCR/ADS6244IRGCR offers optimal power/performance balance.

Compared with ADS6244IRGCR, ADS6444IRGCR shows no technical divergence in TI documentation - suggesting it is either a legacy marking or distributor-specific variant; compared with ADS6245IRGCR, it trades 20 MSPS headroom for 95 mW lower power consumption per channel at full operational rate.

Availability

ADS6444IRGCR is available at Aetrix Electronics and suitable for base-station IF receivers, medical ultrasound front-ends, and high-speed automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial-temperature operation.

Supply support for ADS6444IRGCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-performance data converters for industrial, communications, and medical markets.

The ADS62xx family - including ADS6444IRGCR - was engineered for high-density, high-fidelity IF sampling in multichannel wireless infrastructure and instrumentation, emphasizing LVDS interface efficiency, channel coherence, and flexible programmability.

FAQ

What is the maximum sampling rate supported by ADS6444IRGCR?

The ADS6444IRGCR supports a maximum sampling rate of 105 MSPS, as specified in TI's SLAS542B datasheet. This rate is fully characterized across the industrial temperature range (–40°C to 85°C) with AVDD = LVDD = 3.3 V and internal reference enabled. At this rate, the device achieves 73.4 dBFS SINAD and 83 dBc SFDR at 170 MHz input with 3.5 dB coarse gain. The ADS6444IRGCR is rated for continuous operation at this speed without derating.

Does ADS6444IRGCR support external reference mode?

Yes, ADS6444IRGCR supports external reference mode via the SEN pin configuration. When SEN is biased to 0 V or (3/8)LVDD, the device accepts an external reference applied to REFP/REFM pins, setting full-scale input range to 2 V_pp or 1.34 V_pp, respectively. In this mode, the internal reference is disabled, and VCM remains at 1.5 V. External reference mode is validated in Table 6 and Section 8.3.3 of the SLAS542B datasheet.

What LVDS interface options does ADS6444IRGCR provide?

ADS6444IRGCR supports both 1-wire and 2-wire LVDS serial interfaces, selectable via CFG1 pin. The 2-wire DDR mode uses separate DCLKP/DCLKM and FCLKP/FCLKM pairs, halving the bit clock frequency to <1 Gbps - easing FPGA receiver design. The 1-wire mode multiplexes frame and bit clocks onto one pair. Both modes support MSB/LSB-first, 2's complement/offset binary, and programmable LVDS current drive per TI SLAS542B Section 7.4.

Is ADS6444IRGCR pin-compatible with other devices in the ADS62xx family?

Yes, ADS6444IRGCR shares the same 48-pin QFN (RGZ) package and pinout as ADS6242/ADS6243/ADS6244/ADS6245 per TI's SLAS542B datasheet Table 1 and Package Drawing RGZ0048A. All share identical power, ground, analog input, clock, and LVDS pin assignments. This allows drop-in substitution within the family when sampling rate and power requirements align - e.g., ADS6244IRGCR replaces ADS6444IRGCR without PCB changes.

What is the channel-to-channel delay variation for ADS6444IRGCR?

The ADS6444IRGCR exhibits ≤±80 ps channel-to-channel aperture delay variation across temperature (–40°C to 85°C), as specified in the "Aperture Delay Variation" parameter of the SLAS542B datasheet. This tight matching enables coherent dual-channel acquisition for I/Q sampling and beamforming. The variation is measured under identical conditions: Fs = 105 MSPS, AVDD = LVDD = 3.3 V, internal reference, and –1 dBFS input. No external calibration is required to achieve this spec.

ADS6444IRGCR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 64-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Number of Bits:: 14

Sampling Rate (Per Second):: 105M

Number of Inputs:: 4

Input Type:: Differential

Data Interface:: LVDS - Serial

Configuration:: S/H-ADC

Ratio - S/H:ADC:: 1:1

Number of A/D Converters:: 4

Architecture:: Pipelined

Reference Type:: External, Internal

Voltage - Supply, Analog:: 3V ~ 3.6V

Voltage - Supply, Digital:: 3V ~ 3.6V

Features:: Simultaneous Sampling

Operating Temperature:: -40°C ~ 85°C

Supplier Device Package:: 64-VQFN (9x9)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADS6444IRGCR FAQ

1.How can I place an order for ADS6444IRGCR through Aetrix?

Please submit a Request for Quotation (RFQ) for ADS6444IRGCR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADS6444IRGCR reliable?

The price and inventory of ADS6444IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS6444IRGCR is usually 5 days.

3.What payment methods are accepted for ADS6444IRGCR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS6444IRGCR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADS6444IRGCR?

ADS6444IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADS6444IRGCR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADS6444IRGCR?

For technical support, including ADS6444IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS6444IRGCR requirements.

6.How does Aetrix verify that ADS6444IRGCR is sourced from the original manufacturer or authorized distributors?

All ADS6444IRGCR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS6444IRGCR meets industry standards.

7.What is the process for return or replacement of ADS6444IRGCR?

All ADS6444IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with ADS6444IRGCR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADS6444IRGCR part is unused and in its original packaging.

Return procedure for ADS6444IRGCR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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