Texas Instruments ADC083000RB/NOPB

Overview

ADC083000RB/NOPB from Texas Instruments (formerly National Semiconductor) is a reference evaluation board for the ADC083000 8-bit, 3.0 GSPS analog-to-digital converter. It integrates a Xilinx Virtex-4 XC4VLX15 FPGA, on-board 1.5 GHz low-jitter clock generator (LMX2531), USB 2.0 interface (Cypress CY7C68013A), and configurable analog input paths (single-ended J2 or differential J9/J10) for high-speed RF sampling applications up to 1.8 GHz.

For engineers reviewing the ADC083000RB/NOPB datasheet, ADC083000RB/NOPB pinout, ADC083000RB/NOPB application, or ADC083000RB/NOPB equivalent, this page delivers verified board-level specifications, thermal monitoring (LM95221), power rail architecture (+12 V input → 1.9 V ADC / 1.2 V FPGA core / 3.3 V I/O), and WaveVision4 software integration for time-domain and FFT-based performance validation.

Technical Context

The ADC083000RB/NOPB implements source-synchronous data capture: the FPGA receives ADC output at Fs/2 (SDR) or Fs/4 (DDR) rates synchronized to the ADC's LVDS DCLK+, while using a separate 100 MHz crystal oscillator for control logic and USB data upload. Clock selection between internal (1.5 GHz PLL+VCO) and external sources is managed via software-controlled relay.

Analog signal conditioning includes AC-coupled differential path (Mini-Circuits ADTL2-18 balun), DC-coupled single-ended path (LMH6555 op-amp), and SMA-input impedance matching (50 Ω single-ended, 100 Ω differential). Temperature sensing of both ADC and FPGA die is performed by the LM95221 dual diode sensor interfaced over I²C to the microcontroller.

Key Specifications

Availability

ADC083000RB/NOPB is available at Aetrix Electronics and suitable for high-speed ADC evaluation, RF receiver prototyping, and wideband spectrum analysis requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for ADC083000RB/NOPB 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 acquired National Semiconductor in 2011 and maintains legacy product support, documentation, and evaluation platforms including the ADC083000RB/NOPB.

This board belongs to TI's high-speed data converter evaluation platform family, designed specifically to accelerate development of 3+ GSPS sampling systems in defense electronics, communications infrastructure, and automated test equipment.

FAQ

What is the ADC083000RB/NOPB used for?

The ADC083000RB/NOPB is a reference evaluation board for the ADC083000 8-bit, 3.0 GSPS analog-to-digital converter. It enables rapid characterization of dynamic performance (ENOB, SFDR, SNR) in RF and microwave applications. The board supports both AC- and DC-coupled analog inputs, internal/external clocking, and real-time waveform capture via WaveVision4 software - making it ideal for validating high-speed receiver front-ends before custom PCB design.

Does the ADC083000RB/NOPB include an FPGA, and what is its role?

Yes, the ADC083000RB/NOPB integrates a Xilinx Virtex-4 XC4VLX15-10SF363C FPGA. Its primary roles are: capturing and buffering up to 4 K samples per channel from the ADC083000, measuring clock frequency, managing data formatting, and uploading digitized samples over USB 2.0 to the host PC. The FPGA firmware is loaded automatically by WaveVision4 software at startup and is not user-modifiable without unsupported hardware modifications.

What clock options does the ADC083000RB/NOPB support?

The ADC083000RB/NOPB supports two clock modes: internal 1.5 GHz clock generated by an LMX2531 PLL/VCO with ultra-low jitter, and external clock input via SMA connector (800 MHz–1.5 GHz). Switching between them is controlled by WaveVision4 software through a relay. When using the internal clock, the external clock input must be physically disconnected or gated off to prevent interference and ensure signal integrity.

How is analog input configured on the ADC083000RB/NOPB?

Analog input on the ADC083000RB/NOPB is configurable via WaveVision4 software as either single-ended (J2 SMA) or differential (J9/J10 SMA), and AC- or DC-coupled. AC-coupled differential input uses a Mini-Circuits ADTL2-18 balun; DC-coupled single-ended input uses an LMH6555 op-amp. Impedance is 50 Ω (single-ended) or 100 Ω (differential), and full-scale range is software-selectable between 600 mV_P-P and 800 mV_P-P.

Is WaveVision4 software required to operate the ADC083000RB/NOPB?

Yes, WaveVision4 software is mandatory for basic operation of the ADC083000RB/NOPB. It handles FPGA configuration, clock source selection, analog input mode, full-scale range, trigger settings, and real-time data acquisition. The software provides time-domain waveform plots, FFT analysis, histogram displays, and data export. No standalone operation or alternative GUI is supported - all control and data flow depend on WaveVision4 running on Windows with properly installed USB drivers.