Texas Instruments ADS5292IPFP

Overview

ADS5292IPFP from Texas Instruments is an octal-channel, 12-bit, 80 MSPS analog-to-digital converter optimized for ultrasound imaging and multi-channel data acquisition. It delivers 70-dBFS SNR at 5 MHz/80 MSPS, 85-dBc SFDR, and 66 mW/channel power consumption in 2-wire LVDS mode, operating from 1.8-V supplies with internal reference support.

For engineers reviewing the ADS5292IPFP datasheet, ADS5292IPFP pinout, ADS5292IPFP application, or ADS5292IPFP equivalent, this page provides verified specifications, validated LVDS interface timing, confirmed decimation filter behavior, and real-world channel-averaging use cases - all critical for high-channel-count medical and communications signal chain design.

Technical Context

The ADS5292IPFP integrates a programmable FIR decimation filter (decimation by 2, 4, or 8), IIR high-pass filtering to suppress DC offset, and 0–12 dB digital gain control. Its digital processing block supports 2- or 4-channel averaging to improve SNR without external FPGA logic.

It uses serialized LVDS outputs with flexible mapping: each of eight ADC channels can be routed to one or two differential LVDS output pairs (OUTxA_p/n, OUTxB_p/n), enabling scalable board routing. Frame clock (ACLK) and bit clock (LCLK) are provided as LVDS outputs at 1× and 6× sampling rate respectively.

Key Specifications

Pinout & Package

ADS5292IPFP is housed in an 80-pin TQFP (PFP) package measuring 12 mm × 12 mm with exposed thermal pad. The package supports standard reflow assembly and provides robust thermal dissipation (θJA = 30.8°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS5294IPFP and AD9222ASTZ, the ADS5292IPFP uniquely combines 80 MSPS speed, integrated LVDS serialization, on-chip decimation, and internal reference - reducing total BOM count by up to 5 components per channel in ultrasound and comms systems.

Availability

ADS5292IPFP is available at Aetrix Electronics and suitable for ultrasound imaging systems, multi-channel data acquisition modules, and communications baseband receivers requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for ADS5292IPFP 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 and embedded processing technologies, with decades of expertise in high-performance data converters and signal chain solutions.

The ADS5292IPFP belongs to TI's high-channel-count, low-power ADC product line designed specifically for medical ultrasound, portable instrumentation, and multi-antenna wireless infrastructure - emphasizing integration, power efficiency, and ease of system-level synchronization.

FAQ

What is the maximum sampling rate supported by the ADS5292IPFP?

The ADS5292IPFP supports a maximum sampling rate of 80 MSPS across all eight channels simultaneously. This is validated under recommended operating conditions (AVDD = 1.8 V, LVDD = 1.8 V, differential clock input). At 80 MSPS with 2-wire LVDS output, the device consumes 66 mW per channel and achieves 70-dBFS SNR at 5 MHz input frequency. The ADS5292IPFP maintains full specification compliance up to its rated maximum - no derating is required for sustained operation.

Does the ADS5292IPFP require an external reference voltage?

No, the ADS5292IPFP does not require an external reference voltage. It integrates a factory-trimmed internal 1.8-V reference optimized for best SNR and gain accuracy. When using the internal reference, REFT and REFB pins are left unconnected, and VCM outputs a stable 0.95 V common-mode voltage. External references (1.5 V) may be applied to REFT/REFB only if system-level calibration or specific full-scale scaling is needed - but doing so typically degrades SNR by ~0.5 dBFS compared to internal reference mode.

How does the programmable decimation filter affect the ADS5292IPFP's output data rate and SNR?

The ADS5292IPFP's programmable FIR decimation filter reduces output data rate by integer factors of 2, 4, or 8 - e.g., at 80 MSPS input, decimation by 2 yields 40 MSPS LVDS output. Crucially, this filtering improves in-band SNR by up to 3 dB while attenuating out-of-band noise and harmonics. For example, SNR increases from 70-dBFS to 71.5-dBFS at 5 MHz when decimation = 2 is enabled. The filter coefficients are fixed and optimized for low-pass response; no user coefficient loading is supported.

Can the ADS5292IPFP synchronize multiple devices for coherent sampling?

Yes, the ADS5292IPFP supports precise multi-device synchronization via its dedicated SYNC input pin. When asserted, SYNC resets the internal frame alignment and LVDS output timing across all channels and devices sharing the same clock tree. This enables phase-coherent sampling across multiple ADS5292IPFP units - essential for beamforming in ultrasound or MIMO antenna arrays. The SYNC pulse must be aligned to the rising edge of the master CLKP input and meet minimum pulse width (≥5 ns) and setup/hold timing requirements specified in the datasheet.

What LVDS output configurations does the ADS5292IPFP support, and how do they impact FPGA interface design?

The ADS5292IPFP supports two LVDS output modes: 1-wire (12× serialization) and 2-wire (6× serialization) per channel. In 2-wire mode, each channel drives two differential pairs (e.g., OUT1A_p/n and OUT1B_p/n), halving the per-pin data rate and relaxing FPGA timing closure - ideal for high-speed FPGAs like Xilinx Kintex-7 or Intel Arria 10. In 1-wire mode, all 12 bits serialize onto a single pair, reducing pin count but requiring higher FPGA deserializer rates. Both modes provide ACLKP/ACLKN (1×) and LCLKP/LCLKN (6× or 12×) clocks for deterministic clock-data recovery.