Texas Instruments ADS62P44IRGCT

Overview

ADS62P44IRGCT from Texas Instruments is a dual-channel, 14-bit analog-to-digital converter with 105 MSPS maximum sampling rate, DDR LVDS or parallel CMOS outputs, and integrated digital processing block including decimation (×2/4/8), 24-tap programmable filters, and fine gain correction (0.05 dB steps). It operates over –40°C to 85°C and targets high-performance RF receiver chains in radar and wireless infrastructure.

For engineers reviewing the ADS62P44IRGCT datasheet, ADS62P44IRGCT pinout, ADS62P44IRGCT application, or ADS62P44IRGCT equivalent, key selection criteria include its 105 MSPS sample rate, 74.2 dBFS SINAD at 10 MHz input, 92 dBc SFDR at 10 MHz (0 dB gain), 710 mW analog power dissipation, and QFN-64 package compatibility with pin-compatible 12-bit ADS62P2X family devices.

Technical Context

The ADS62P44IRGCT implements a dual 14-bit pipeline ADC architecture with internal sample-and-hold and low-jitter clock buffer, enabling high SNR/SFDR performance up to 190 MHz input frequency. Its digital processing block supports real-time offset correction, fine gain adjustment, and configurable decimation - all programmable via serial interface or parallel control pins.

It supports multiple clock inputs (LVPECL, LVDS, LVCMOS, sine) down to 400 mV_PP, includes a clock duty cycle stabilizer, and offers flexible reference options: internal 1 V–2 V reference or external reference with VCM pin control. Output interface selection (CMOS vs DDR LVDS) and gain configuration (0 dB or 3.5 dB coarse + up to 6 dB fine) are determined at power-up via analog/digital control pins or register programming.

Key Specifications

Pinout & Package

The ADS62P44IRGCT is housed in a thermally enhanced 64-pin QFN package (9 mm × 9 mm, RGC designation) with exposed thermal pad. Pin functions are defined per TI SLAS561C Rev F (Feb 2012).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS62P45IRGCT and ADS62P43IRGCT, the ADS62P44IRGCT delivers balanced performance: 105 MSPS throughput bridges the gap between high-speed and low-power variants, while its 92 dBc SFDR and 74.2 dBFS SINAD support demanding wireless and radar applications without exceeding thermal limits of compact RF modules.

Availability

ADS62P44IRGCT is available at Aetrix Electronics and suitable for radar systems, wireless infrastructure equipment, and software-defined radio platforms requiring stable component supply, long-term industrial temperature support (–40°C to 85°C), and pin-compatible upgrade paths from 12-bit ADCs.

Supply support for ADS62P44IRGCT 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, automotive, and communications markets.

The ADS62P4X family was designed for high-fidelity, low-power digitization in RF receiver front-ends - emphasizing dual-channel synchronization, on-chip digital processing, and flexible interface options to simplify system-level design in radar, SDR, and wireless infrastructure.

FAQ

What is the maximum sampling rate supported by the ADS62P44IRGCT?

The ADS62P44IRGCT supports a maximum sampling rate of 105 MSPS, as specified in the TI SLAS561C datasheet. This rate is validated across the full industrial temperature range (–40°C to 85°C) and applies to both DDR LVDS and parallel CMOS output modes. At this rate, the device maintains 74.2 dBFS SINAD and 92 dBc SFDR at 10 MHz input frequency with 0 dB coarse gain.

Does the ADS62P44IRGCT include an internal voltage reference?

Yes, the ADS62P44IRGCT includes an internal reference with VREFT = 2 V and VREFB = 1 V, yielding a 1 V reference span. It also supports external reference operation via the VCM pin (1.45–1.55 V range), allowing system designers to substitute higher-accuracy or temperature-stable references when required. Internal reference mode eliminates need for external decoupling capacitors on reference pins.

How is the output interface (LVDS vs CMOS) selected on the ADS62P44IRGCT?

The output interface is selected at power-up using the SEN analog control pin: applying (3/8)AVDD selects straight binary DDR LVDS, AVDD selects 2's complement parallel CMOS, and (5/8)AVDD selects straight binary parallel CMOS. No serial programming is required for basic interface selection - configuration is determined solely by analog voltage on SEN, SCLK, and CTRL pins during reset release.

What digital processing capabilities does the ADS62P44IRGCT provide?

The ADS62P44IRGCT integrates a configurable digital processing block featuring offset correction, fine gain adjustment (0.05 dB steps), decimation by 2/4/8, and built-in or custom-programmable 24-tap low-/high-/band-pass FIR filters. These functions are disabled by default but can be enabled and tuned via serial interface registers or parallel pin settings, reducing post-ADC FPGA processing load.

Is the ADS62P44IRGCT pin-compatible with other devices in the ADS62P4X family?

Yes, all ADS62P4X variants - including ADS62P45IRGCT, ADS62P44IRGCT, ADS62P43IRGCT, and ADS62P42IRGCT - share identical 64-pin QFN (RGC) packaging and pinout. They are also pin-compatible with the lower-resolution ADS62P2X 12-bit family, enabling drop-in upgrades to 14-bit resolution without PCB layout changes.