Texas Instruments ADS5423IPJYG3

Overview

ADS5423IPJYG3 from Texas Instruments is a 14-bit, 80 MSPS pipeline analog-to-digital converter (ADC) operating from a 5 V analog supply and delivering 3.3 V CMOS-compatible parallel digital outputs. It features on-chip analog input buffer, track-and-hold, and internal 2.4 V reference; delivers 74 dBc SNR and 94 dBc SFDR at 50 MHz IF; and targets high-performance IF sampling in base station receivers and instrumentation.

For engineers reviewing the ADS5423IPJYG3 datasheet, ADS5423IPJYG3 pinout, ADS5423IPJYG3 application, or ADS5423IPJYG3 equivalent, this page provides verified technical context, real-world timing behavior, thermal design guidance for the HTQFP-52 PowerPad package, and validated alternative options for multichannel digital receiver designs.

Technical Context

The ADS5423IPJYG3 implements a monolithic bipolar pipeline architecture where both rising and falling clock edges advance samples through stages, achieving 3-cycle latency. Its analog core uses BiCom3 process with differential input buffer isolating source impedance (1 kΩ), and internal common-mode biasing at 2.4 V eliminates external level-shifting circuitry.

Digital output drivers operate from a dedicated 3.3 V supply (DRVDD), enabling direct interface to 3.3 V logic without level shifters. Clock jitter sensitivity is minimized via low aperture uncertainty (150 fs) and slope-independent jitter specification, supporting stable performance up to 230 MHz input frequency despite 2.2 Vpp differential input range.

Key Specifications

Pinout & Package

The ADS5423IPJYG3 is housed in a 52-pin HTQFP package with exposed thermal pad (PowerPad™), requiring soldered slug and 25 thermal vias (5×5 array) for thermal compliance per TI SLWS160A.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS5423IPJYG3, ADS5422IPJ trades speed for lower power and thermal load, while AD6645ASVZ-80 offers identical speed but increases system design effort with external reference and buffering requirements-making ADS5423IPJYG3 optimal for new high-density IF sampling platforms.

Availability

ADS5423IPJYG3 is available at Aetrix Electronics and suitable for base station infrastructure, instrumentation digitizers, and video signal acquisition systems requiring stable component supply across extended product lifecycles.

Supply support for ADS5423IPJYG3 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, communications, and automotive markets.

The ADS5423IPJYG3 belongs to TI's high-speed precision ADC portfolio, designed specifically for demanding IF sampling in wireless infrastructure and test equipment where SNR, SFDR, and thermal robustness are critical.

FAQ

What is the absolute maximum clock voltage for ADS5423IPJYG3?

The absolute maximum differential clock voltage for ADS5423IPJYG3 is ±2.5 V across CLK and CLK pins. Exceeding this may cause permanent damage. Recommended operation uses 3 Vpp sine wave differential clock with 50% duty cycle, as specified in the SLWS160A datasheet under Recommended Operating Conditions.

Does ADS5423IPJYG3 require external reference components?

No, ADS5423IPJYG3 integrates a 2.4 V internal reference and requires only 0.1 µF microwave capacitors on VREF, C1, and C2 pins to ground. No external reference IC, resistors, or trimming circuitry is needed-reducing BOM count and layout complexity compared to alternatives like AD6645.

What is the latency of ADS5423IPJYG3 and how is it measured?

The ADS5423IPJYG3 has a fixed 3-cycle latency from clock rising edge to valid D[13:0] output. This is confirmed in the Timing Characteristics table (L = 3 Cycles) and corresponds to 37.5 ns at 80 MSPS. The DRY signal falls 2.8–4.7 ns after the clock edge, marking data validity window start.

Can ADS5423IPJYG3 be used with single-ended clock inputs?

Yes, ADS5423IPJYG3 supports single-ended clock drive: connect CLK to clock source via 0.01 µF AC coupling capacitor, and CLK to ground via 0.01 µF capacitor. Performance remains comparable to differential mode below 100 MHz input frequency, as validated in Figure 41 of SLWS160A.

What thermal design guidelines apply to ADS5423IPJYG3's HTQFP package?

ADS5423IPJYG3's HTQFP-52 PowerPad package requires soldering the exposed thermal pad to a solid copper plane with 25 thermal vias (5×5 array) for θJC = 2°C/W. With 200-LFM airflow, θJA drops to 15.8°C/W; unsoldered slug raises θJA to 33.3°C/W-making proper thermal pad attachment essential for 1.85 W power dissipation at 85°C ambient.