Texas Instruments ADS5423IPJY

Overview

ADS5423IPJY 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 2.2 Vpp differential input range, 74 dBc SNR at 50 MHz IF, 94 dBc SFDR, on-chip track-and-hold and reference generator, and is specified for −40°C to +85°C industrial operation in base station receivers and instrumentation.

For engineers reviewing the ADS5423IPJY datasheet, ADS5423IPJY pinout, ADS5423IPJY application, or ADS5423IPJY equivalent, this page delivers verified electrical specs, thermal characteristics, timing constraints, package mapping, and real-world interface guidance - all validated against TI's SLWS160A datasheet and functional block diagram.

Technical Context

The ADS5423IPJY employs a monolithic BiCom3 bipolar process with a 3-stage pipelined architecture using both clock edges for half-cycle data propagation, resulting in fixed 3-cycle latency. Its input stage integrates a differential analog buffer and track-and-hold that isolates external sources from internal switching noise while maintaining 570 MHz analog bandwidth.

Digital output uses binary two's complement format across 14 parallel CMOS drivers powered by a dedicated 3.3 V DRVDD rail. Internal 2.4 V reference generation eliminates need for external voltage references, and DMID terminal provides precise midpoint voltage (DRVDD/2) for output level alignment.

Key Specifications

Pinout & Package

ADS5423IPJY is housed in a 52-pin HTQFP package (PJY suffix) with exposed thermal pad (PowerPad™) for enhanced heat dissipation. Package dimensions are 10 mm × 10 mm × 1.0 mm, lead pitch 0.5 mm, and requires 25 thermal vias (5×5 array) per TI thermal guidelines.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD6645ASTZ-80, ADS5423IPJY offers higher analog supply headroom and proven 5 V system compatibility; versus ADS5463IPFP, it trades raw speed for lower power, simpler support circuitry, and guaranteed pin compatibility in existing AD6645 layouts.

Availability

ADS5423IPJY is available at Aetrix Electronics and suitable for base station infrastructure, high-speed instrumentation, and video capture systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.

Supply support for ADS5423IPJY 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 ADS5423IPJY belongs to TI's high-speed ADC product line, engineered for demanding communication infrastructure applications where SNR, SFDR, and deterministic latency are critical to system-level RF performance.

FAQ

What is the absolute maximum clock voltage rating for ADS5423IPJY?

The absolute maximum differential clock voltage for ADS5423IPJY 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 Section 5.

Does ADS5423IPJY require external reference components?

No. ADS5423IPJY integrates an internal 2.4 V reference generator. VREF (pin 3), C1 (pin 20), and C2 (pin 24) must be bypassed to ground with 0.1 µF microwave capacitors per TI layout guidelines - no external reference IC or resistor network is needed.

What is the latency of ADS5423IPJY and how is it measured?

ADS5423IPJY has a fixed latency of 3 clock cycles from CLK rising edge to valid D[13:0] output. This is confirmed in the Timing Characteristics table (Section 5) and functional block diagram. Latency is independent of input frequency and sampling rate within the 30–80 MSPS range.

Can ADS5423IPJY accept single-ended clock inputs?

Yes. ADS5423IPJY supports single-ended clock drive: connect CLK (pin 5) to AC-coupled clock source via 0.01 µF capacitor, and CLK (pin 6) to ground via same capacitor. Performance degradation is negligible below 50 MHz input frequency, per Figure 41 and Application Information section.

What thermal design guidance applies to ADS5423IPJY's HTQFP package?

ADS5423IPJY's PJY package requires soldering the exposed PowerPad to a minimum 10 mm² copper area with 25 thermal vias (5×5 array). With this, θJA drops to 22.5°C/W (no airflow) or 15.8°C/W (200 LFPM airflow), enabling safe operation at 1.85 W within −40°C to +85°C ambient.