Texas Instruments ADS5292IPFPT

Overview

ADS5292IPFPT from Texas Instruments is an octal-channel, 12-bit, 80 MSPS analog-to-digital converter with integrated digital processing, LVDS serialization, and programmable decimation filters. It delivers 70-dBFS SNR at 5 MHz/80 MSPS, consumes 66 mW per channel at full rate with 2-wire LVDS output, and targets high-channel-count data acquisition in ultrasound imaging systems.

For engineers reviewing the ADS5292IPFPT datasheet, ADS5292IPFPT pinout, ADS5292IPFPT application, or ADS5292IPFPT equivalent, key selection criteria include its 8-channel simultaneous sampling capability, on-chip FIR/IIR filtering, flexible LVDS mapping (1- or 2-wire per channel), 1.8-V operation, and recovery from 6-dB overload within one clock cycle.

Technical Context

The ADS5292IPFPT implements a pipelined CMOS ADC architecture with differential input pairs for all eight channels, each supporting up to 2 V_PP analog input range and 550-MHz small-signal bandwidth. Its digital processing block includes a programmable FIR decimation filter (decimation by 2, 4, or 8), a programmable IIR high-pass filter for DC offset suppression, and 2- or 4-channel averaging modes to improve SNR.

LVDS output interface supports two configurations: 1-wire (12× serialization, frame clock = f_CLKIN) and 2-wire (6× serialization, bit clock = 6×f_CLKIN, frame clock = f_CLKIN). Programmable channel-to-LVDS-pin mapping simplifies PCB routing, and internal 1.8-V reference ensures consistent performance across devices without external trimming.

Key Specifications

Pinout & Package

ADS5292IPFPT is housed in an 80-pin TQFP (PFP) package with exposed thermal pad (12 mm × 12 mm), rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal-channel, 12-bit ADC applications.

Compared with ADS5294IPFPT and AD9222ASTZ, the ADS5292IPFPT uniquely combines 80 MSPS sampling, integrated LVDS serialization with pin-mapping flexibility, and on-chip digital processing - reducing FPGA resource usage and PCB complexity in high-channel-count, space-constrained systems.

Availability

ADS5292IPFPT is available at Aetrix Electronics and suitable for ultrasound imaging systems, multi-channel data acquisition platforms, and communications test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADS5292IPFPT 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, medical, and communications markets.

The ADS5292IPFPT belongs to TI's high-channel-count, low-power ADC product line, designed specifically for medical ultrasound, phased-array radar, and automated test equipment where simultaneous sampling, on-chip digital processing, and compact LVDS interfacing are critical.

FAQ

What is the maximum sampling rate supported by the ADS5292IPFPT?

The ADS5292IPFPT supports a maximum sampling rate of 80 MSPS across all eight channels simultaneously. This rate is achievable with 12-bit resolution and specified under recommended operating conditions: AVDD = 1.8 V, LVDD = 1.8 V, differential input amplitude ≤2 V_PP, and clock duty cycle between 35% and 65%. At 80 MSPS, the device consumes 66 mW per channel using the 2-wire LVDS output interface.

Does the ADS5292IPFPT include an internal voltage reference?

Yes, the ADS5292IPFPT integrates an internal 1.8-V reference trimmed for accuracy across temperature and unit-to-unit variation. In internal reference mode, it achieves <±2% total gain error and supports optimal SNR performance. The device also accepts external references via REFT (1.45 V) and REFB (0.45 V) pins, and VCM can be configured as a 1.5-V external reference input when needed.

How does the programmable LVDS channel-to-pin mapping benefit PCB layout for the ADS5292IPFPT?

The ADS5292IPFPT's programmable mapping module allows any ADC input channel (e.g., IN3P/IN3N) to be routed to any LVDS output pair (e.g., OUT5A_p/OUT5A_n). This eliminates fixed routing constraints, reduces trace length mismatch between channels, lowers layer count in high-density boards, and avoids costly redesigns when signal integrity issues arise - especially valuable in ultrasound probe interface modules with tight space constraints.

What is the overload recovery time specification for the ADS5292IPFPT?

The ADS5292IPFPT recovers from a 6-dB overload condition to within 1% of full-scale value in exactly one ADC clock cycle. This behavior is guaranteed across the full operating temperature range (–40°C to +85°C) and applies to all eight channels. Fast recovery preserves data validity during transient signal bursts common in ultrasound echo reception and pulsed radar applications.

Can the ADS5292IPFPT perform on-chip digital filtering, and what types are supported?

Yes, the ADS5292IPFPT includes a configurable digital processing block with two primary filters: a programmable FIR decimation filter (with decimation ratios of ×2, ×4, or ×8) and a programmable IIR high-pass filter. The FIR filter improves SNR in narrowband applications and reduces output data rate; the IIR filter suppresses DC offset and low-frequency noise - both configurable via the serial interface without external processing resources.