Texas Instruments ADS5413IPHP

Overview

ADS5413IPHP from Texas Instruments is a 12-bit, 65-MSPS pipeline analog-to-digital converter optimized for intermediate-frequency (IF) sampling in high-speed receivers. It operates from a single 3.3-V analog supply, supports 1.8-V to 3.3-V digital output levels, delivers 64.5-dBFS SNR and 72-dBc SFDR at 190 MHz input, and integrates on-chip duty cycle adjust (DCA), internal reference, and S/H circuitry - enabling direct use in medical imaging front-ends and portable instrumentation signal chains.

For engineers reviewing the ADS5413IPHP datasheet, ADS5413IPHP pinout, ADS5413IPHP application, or ADS5413IPHP equivalent, key selection criteria include its 1-GHz −3-dB analog input bandwidth, 0.4-ps aperture jitter, 400-mW total power dissipation at full rate, and support for both differential and single-ended clocking without performance degradation.

Technical Context

The ADS5413IPHP implements a 10-stage CMOS pipeline architecture with one flash ADC stage, utilizing both rising and falling clock edges to achieve 65 MSPS sampling with six-cycle latency. Its analog core features a differential switched-capacitor track-and-hold amplifier biased to CML (1.8 V), enabling high linearity up to 220 MHz input frequency.

It supports flexible reference configuration via REF SEL pin: internal 1.25-V/2.25-V reference pair (VREFB/VREFT) or external reference with 1-V nominal differential span. The DCA circuit corrects non-50% duty cycle clocks but can be disabled for low-jitter asynchronous sampling or high-frequency IF applications where clock purity is critical.

Key Specifications

Pinout & Package

ADS5413IPHP is housed in a 48-pin HTQFP package (PHP designation) with exposed thermal pad (3.5 mm × 3.5 mm), 7 mm × 7 mm body size, and RoHS-compliant NiPdAu lead finish (MSL Level-3). Thermal pad must be connected to ground plane for thermal and electrical integrity.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS5423IPHP and AD9235BCPZ-65, the ADS5413IPHP uniquely balances 65 MSPS throughput, integrated DCA, internal reference, and sub-400-mW power - making it optimal for portable, wideband IF digitizers where clock flexibility and power budget are constrained.

Availability

ADS5413IPHP is available at Aetrix Electronics and suitable for high IF sampling receivers, medical ultrasound imaging systems, and portable spectrum analyzers requiring stable component supply across extended temperature ranges (−40°C to +85°C).

Supply support for ADS5413IPHP 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, automotive, and communications markets.

The ADS5413IPHP belongs to TI's CommsADC family - designed specifically for high-input-frequency sampling in wireless infrastructure, medical imaging, and test equipment where low power, high linearity, and clock flexibility are essential.

FAQ

What is the maximum analog input frequency supported by the ADS5413IPHP?

The ADS5413IPHP has a −3-dB analog input bandwidth of 1 GHz, meaning it maintains flat frequency response up to that point. At 220 MHz input, it achieves 63.8-dBFS SNR and 72.6-dBc SFDR under standard conditions (65 MSPS, internal reference, DCA off). This enables direct undersampling of L- and S-band RF signals without excessive analog prefiltering.

Does the ADS5413IPHP require an external reference, or does it have an internal one?

The ADS5413IPHP includes an internal reference generator providing 1.25 V (VREFB) and 2.25 V (VREFT) - yielding a 1.06-V nominal differential span. The REF SEL pin (pin 48) controls selection: low (or NC) enables internal reference; high disables it for external reference use. Internal reference eliminates external components but consumes ~56 mW extra power.

Can the ADS5413IPHP operate with a single-ended clock input?

Yes, the ADS5413IPHP supports both differential (CLK/CLKC) and single-ended (CLK only, CLKC grounded via 0.01-µF capacitor) clock inputs with no measurable AC performance difference. The internal 5-kΩ resistors bias both clock pins to AVDD/2, enabling robust single-ended drive with 1–3 Vpp swing - simplifying clock distribution in space-constrained layouts.

What is the purpose of the DCA pin on the ADS5413IPHP, and when should it be disabled?

The DCA (Duty Cycle Adjust) pin (pin 24) enables or disables an on-chip circuit that corrects non-50% duty cycle clocks to 50% internally. It should be disabled (tied low) for ultra-low-jitter applications (e.g., high-frequency IF sampling >150 MHz) or asynchronous sampling, where added DCA delay and jitter would degrade SNR and SFDR performance.

How is thermal management handled for the ADS5413IPHP in the HTQFP package?

The ADS5413IPHP uses an HTQFP package with an exposed thermal pad (3.5 mm × 3.5 mm) that must be soldered to a dedicated PCB ground plane. TI recommends using ≥4 thermal vias (0.3-mm diameter) under the pad, connected to inner-layer ground planes, to maintain junction temperature within −40°C to +85°C ambient. Proper thermal design keeps power dissipation at 400 mW from exceeding safe operating limits.