Texas Instruments ADS62C15IRGCT

Overview

ADS62C15IRGCT from Texas Instruments is a dual-channel, 11-bit analog-to-digital converter (ADC) with 125 MSPS maximum sampling rate, parallel CMOS and DDR LVDS output interfaces, internal reference, and SNRBoost technology enabling 77.5 dBFS SNR at 20 MHz bandwidth. It operates across –40°C to 85°C and targets high-performance RF signal digitization in wireless infrastructure.

For engineers reviewing the ADS62C15IRGCT datasheet, ADS62C15IRGCT pinout, ADS62C15IRGCT application, or ADS62C15IRGCT equivalent, key selection criteria include dual-channel 125 MSPS timing integrity, 82 dBc SFDR at 117 MHz input, programmable fine gain (0.05 dB steps), decimation-by-2/4/8 capability, and QFN-64 package thermal performance (θJC = 22.1 °C/W).

Technical Context

The ADS62C15IRGCT integrates two independent 11-bit ADC cores sharing a low-jitter clock buffer and digital processing block. Each channel supports offset correction, fine gain adjustment (±6 dB in 0.05 dB steps), and configurable 24-tap FIR filters (low/high/band-pass) with decimation options of 2, 4, or 8.

It implements SNRBoost technology to improve quantization-limited SNR for bandwidths below Nyquist (Fs/2), delivering up to +4.5 dB SNR gain at 20 MHz bandwidth. Output interface selection-CMOS or DDR LVDS-is controlled via parallel pins (SEN/SCLK) or serial register programming, with latency ranging from 10 to 15 clock cycles depending on mode and filter enablement.

Key Specifications

Pinout & Package

ADS62C15IRGCT uses a 64-pin QFN package (RGC designation) with 0.5 mm pitch and exposed thermal pad. Pin functions are validated per TI SLAS577E Rev F (Feb 2012); key terminal groups include dual analog inputs (INA_P/M, INB_P/M), differential clock inputs (CLKP/M), CMOS/LVDS data outputs (DA0–DA10, DB0–DB10), control pins (SEN, SCLK, CTRL1–3), and dedicated power domains (AVDD, DRVDD, AGND, DRGND).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS62C15IRGCT, ADS62P15IRGCT offers higher resolution and integrated PLL but demands stricter clock quality, while AD9233BCPZ-125 provides vendor diversity at the cost of reduced integration and no SNRBoost - making ADS62C15IRGCT optimal for cost-sensitive, feature-rich SDR and wireless infrastructure designs.

Availability

ADS62C15IRGCT is available at Aetrix Electronics and suitable for wireless infrastructure base stations, software-defined radio platforms, power amplifier linearization systems, and radar signal acquisition requiring stable component supply and long-term industrial temperature support (–40°C to 85°C).

Supply support for ADS62C15IRGCT 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 ADS62C15IRGCT belongs to TI's high-speed ADC portfolio designed specifically for wireless infrastructure and instrumentation applications requiring dual-channel synchronization, flexible digital processing, and robust thermal performance in compact QFN packages.

FAQ

What is the maximum sampling rate supported by the ADS62C15IRGCT?

The ADS62C15IRGCT supports a maximum sampling rate of 125 MSPS, validated across the full industrial temperature range (–40°C to 85°C). This rate enables direct sampling of IF signals up to 62.5 MHz and is maintained under all specified operating conditions including worst-case supply voltage (AVDD = 3.0 V) and clock amplitude (400 mVPP differential).

Does the ADS62C15IRGCT include an internal voltage reference?

Yes, the ADS62C15IRGCT integrates an internal reference that eliminates the need for external reference ICs and associated decoupling capacitors. It also supports external reference operation via the CM pin, with specified common-mode voltage tolerance of 1.5 ±0.05 V in that mode. Internal reference accuracy contributes ±0.25%FS gain error.

How does SNRBoost technology improve performance in the ADS62C15IRGCT?

SNRBoost in the ADS62C15IRGCT improves signal-to-noise ratio by up to 4.5 dB for input bandwidths less than Nyquist (Fs/2), such as 20 MHz at 125 MSPS sampling. It mitigates quantization noise limitations without increasing power consumption, delivering 77.5 dBFS SNR - verified in TI SLAS577E Table 1 - for narrowband applications like radar pulse processing or medical ultrasound beamforming.

What output interface options does the ADS62C15IRGCT support?

The ADS62C15IRGCT supports two configurable output interfaces: parallel CMOS (11-bit per channel, single-data-rate) and DDR LVDS (dual-edge clocked, even/odd bit multiplexing). Interface selection is controlled via parallel pins (SEN/SCLK) or serial register programming, with timing validated for both modes per TI SLAS577E Section 7.

What is the thermal performance of the ADS62C15IRGCT in its QFN package?

The ADS62C15IRGCT in its 64-pin QFN package (RGC) achieves θJC = 22.1 °C/W when mounted on a JEDEC-standard four-layer 3 in. × 3 in. PCB with 2 oz. copper and thermal pad soldered directly to the board. This enables reliable operation at full 125 MSPS with total power dissipation up to 0.94 W (LVDS mode) under industrial temperature conditions.