Texas Instruments ADS5553EVM

Overview

ADS5553EVM from Texas Instruments is an evaluation module designed to characterize the ADS5553 dual 14-bit, 105-MSPS analog-to-digital converter under configurable analog input, clock, reference, and power conditions. It supports transformer-coupled or differential amplifier input paths per channel, true differential or single-ended clock injection, and independent analog/driver/±5V amplifier supply domains.

For engineers reviewing the ADS5553EVM datasheet, ADS5553EVM pinout, ADS5553EVM application, or ADS5553EVM equivalent, this module enables rapid validation of high-speed ADC performance metrics-including SNR, SFDR, and ENOB-in communication infrastructure, test equipment, and radar receiver signal chains.

Technical Context

The ADS5553EVM implements dual-channel signal conditioning using THS4503 fully differential amplifiers and ADT1-1WT transformers for flexible analog input coupling. It provides two independent 40-pin IDC output headers (J8/J21) with SN74AVC16244 level-shifting buffers to drive logic analyzers or FPGA capture interfaces.

Power architecture separates +3.3V analog supply (J11/J10), +3.3V output buffer supply (J17/J18), and ±5V differential amplifier rails (J14/J13/J12). Jumper-configurable common-mode sourcing (SJP1/SJP3/W8/W9), output enables (W2/W10), and reset polarity (SJP6) support multiple operational modes without hardware modification.

Key Specifications

Availability

ADS5553EVM is available at Aetrix Electronics and suitable for high-speed data acquisition, communications test instrumentation, and radar front-end prototyping requiring stable component supply and documented reference design validation.

Supply support for ADS5553EVM 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 headquartered in Dallas, Texas, delivering analog, embedded processing, and digital signal solutions for industrial, automotive, and communications markets.

The ADS5553EVM belongs to TI's high-speed data converter evaluation platform family, engineered to accelerate time-to-test for precision, wideband ADCs used in demanding RF and instrumentation applications.

FAQ

What is the primary function of the ADS5553EVM?

The ADS5553EVM is a dedicated evaluation platform for the ADS5553 dual 14-bit, 105-MSPS analog-to-digital converter. It enables engineers to validate dynamic performance-such as SNR, SFDR, and harmonic distortion-under real-world signal, clock, reference, and power conditions before system integration. The ADS5553EVM itself contains no ADC silicon but hosts the ADS5553 device as its core DUT.

Does the ADS5553EVM include the ADS5553 IC?

Yes, the ADS5553EVM includes one ADS5553 dual-channel ADC mounted on the board (U1 per schematic). The module is shipped with the ADS5553 installed and ready for immediate evaluation-no separate purchase or soldering of the ADC is required to begin testing.

Can the ADS5553EVM accept true differential clock inputs?

Yes, the ADS5553EVM supports true differential clock injection by installing jumper J4, resistors R11 and R25, replacing R31 with a 49.9 Ω resistor, and removing transformer T3. The positive clock connects to SMA J3 and the negative to SMA J4, delivering balanced signals directly to both ADC clock inputs.

What are the supported analog input configurations for the ADS5553EVM?

The ADS5553EVM offers three analog input options per channel: (1) transformer-coupled single-ended (default, via J15/J16), (2) single-ended into THS4503 differential amplifier (via J2/J9), and (3) true differential into THS4503 (via J1/J2 for CHA, J7/J9 for CHB). Configuration requires specific resistor/jumper settings per User's Guide Section 2.2.1.

How are digital outputs routed and buffered on the ADS5553EVM?

Digital outputs from the ADS5553 are routed through two SN74AVC16244 level-shifting buffers (U7 and U10) and delivered to standard 40-pin 100-mil IDC headers J8 (Channel A) and J21 (Channel B). Each header carries 14-bit 2's complement data, overflow flag, and output clock-enabling direct connection to logic analyzers or FPGA development systems.