Texas Instruments ADS58B18EVM

Overview

ADS58B18EVM from Texas Instruments is an evaluation module designed to characterize the ADS58B18 11-bit, 200-MSPS analog-to-digital converter under controlled signal, clock, reference, and power supply conditions. It supports transformer-coupled single-ended analog input (J6), multiple clocking schemes including direct SMA input (J19) or onboard CDCE72010-based clock generation, and LVDS digital output capture via J10.

For engineers reviewing the ADS58B18EVM datasheet, ADS58B18EVM pinout, ADS58B18EVM application, or ADS58B18EVM equivalent, this module enables rapid ADC performance validation-including SNR, SFDR, and ENOB-using HSDC Pro software with TSW1400 data capture, configurable power delivery (LDO/switching regulator), and jumper-selectable analog input paths (THS4509 amplifier or direct transformer coupling).

Technical Context

The ADS58B18EVM implements a dual-path analog input architecture: default transformer-coupled differential conversion (via ADT4-1WT) for high-frequency IF signals up to 500 MHz, and optional THS4509 amplifier path for signal conditioning. Power delivery is configurable between TPS62562 switching regulator (efficiency-optimized) and TPS79618 LDO (low-noise optimized), both generating 1.8 V for ADC AVDD/DVDD rails from a single 3.3-V input at J16.

Clock flexibility includes three modes: (1) external single-ended clock directly to ADC via J19 and transformer coupling; (2) crystal-filtered 245.76-MHz LVCMOS output from CDCE72010 (factory-configured ÷4 of 983.04-MHz VCXO); and (3) differential LVPECL output from CDCE72010 Y1P/Y1N pins. All modes support coherent FFT testing with synchronized signal and clock sources.

Key Specifications

Availability

ADS58B18EVM is available at Aetrix Electronics and suitable for high-speed data converter evaluation, RF receiver characterization, and wideband ADC validation requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for ADS58B18EVM 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 company specializing in analog, embedded processing, and high-performance data converter technologies.

The ADS58B18EVM belongs to TI's high-speed ADC evaluation platform family, engineered to accelerate time-to-test for RF sampling and communications applications requiring >100-MHz input bandwidth and sub-1-LSB INL.

FAQ

What is the primary function of the ADS58B18EVM?

The ADS58B18EVM is a dedicated evaluation module for the ADS58B18 11-bit, 200-MSPS analog-to-digital converter. It provides full hardware support-including configurable analog input (transformer or THS4509 amplifier), multiple clocking options (direct SMA or CDCE72010-based), and LVDS output capture-to enable accurate measurement of dynamic performance parameters such as SNR, SFDR, and ENOB under real-world signal chain conditions. The ADS58B18EVM does not operate as a standalone system but serves exclusively as a test interface for the ADS58B18 IC.

Does the ADS58B18EVM include the ADS58B18 IC pre-mounted?

Yes, the ADS58B18EVM ships with the ADS58B18 IC soldered onto the board. The module is designed specifically for that device and is not reconfigurable for other ADCs in the ADS41xx family without hardware modification. All jumper settings, power routing, and signal path layouts are validated for the ADS58B18's pinout, timing requirements, and electrical specifications-including its 1.8-V supply rails, LVDS output drive strength, and internal reference architecture.

Can the ADS58B18EVM generate its own clock signal without external equipment?

No-the ADS58B18EVM does not generate a clock autonomously. It supports clock distribution using the onboard CDCE72010 clock buffer only when paired with an external 20-MHz reference applied to J19 and an optional 983.04-MHz VCXO (not populated by default). The CDCE72010 is factory-programmed for ÷4 operation, producing 245.76 MHz on Y0-but the VCXO and crystal filter must be user-installed. In default configuration, the ADS58B18EVM requires an external clock source connected to SMA connector J19.

What software tools are required to operate the ADS58B18EVM?

The ADS58B18EVM is operated using Texas Instruments' High Speed Data Converter Pro (HSDC Pro) software, which supports register configuration, real-time FFT analysis, and data capture when used with the TSW1400 pattern generator/capture board. HSDC Pro communicates with the ADS58B18EVM via USB through the onboard interface circuitry. No proprietary firmware or additional drivers beyond TI's standard USB CDC class are required. The ADS58B18EVM itself contains no embedded processor or firmware-it relies entirely on host PC software and external test equipment.

Is the THS4509 amplifier circuit active by default on the ADS58B18EVM?

No-the THS4509 amplifier path is disabled by default. The ADS58B18EVM ships configured for transformer-coupled analog input from J6, with jumpers set to bypass the THS4509 (e.g., JP7=1-2 for amplifier power-down, R94/R97 installed for direct transformer path). To enable the THS4509, users must remove those jumpers/resistors and install R95, R96, R99, and R106 per Table 2-6, while supplying +5 V to J9 and ground to J11. The THS4509 is included for signal conditioning flexibility-not as a default signal chain element.