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Texas Instruments ADS5295PFP
- Part No.:
- ADS5295PFP
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 80-TQFP Exposed Pad
- Datasheet:
-
ADS5295PFP.pdf
- Description:
- IC ADC 12BIT PIPELINED 80HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,424
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Product details
Overview
ADS5295PFP from Texas Instruments is a 12-bit, 100-MSPS, 8-channel analog-to-digital converter with LVDS serialized outputs, programmable digital filtering (FIR/IIR), and low-frequency noise suppression mode. It delivers 70.6 dBFS SNR and 85 dBc SFDR at 10 MHz input, consuming 80 mW per channel at full rate, and targets high-density ultrasound imaging front-ends where channel count, power efficiency, and SNR in the 1–10 MHz band are critical.
For engineers reviewing the ADS5295PFP datasheet, ADS5295PFP pinout, ADS5295PFP application, or ADS5295PFP equivalent, this page provides verified technical context on its two-wire 12× LVDS serialization, internal reference trimming, aperture jitter (320 fs rms), channel averaging capability, and QFP-80 package thermal metrics - all essential for FPGA-based data acquisition system integration.
Technical Context
The ADS5295PFP integrates eight independent 12-bit SAR ADC cores with shared clocking and digital processing. Each channel supports differential analog inputs up to 2 VPP, 500-MHz analog bandwidth, and programmable digital gain (0–12 dB). Its digital block includes a configurable FIR decimation filter, IIR high-pass filter for DC offset removal, and low-frequency noise suppression mode that improves SNR by ~3 dB near DC.
LVDS output architecture supports one-wire (up to 80 MSPS) or two-wire (up to 100 MSPS) serialization per channel, with 10× or 12× options. Output clocks (LCLKP/LCLKN) run at 6× sample rate in two-wire mode; frame clock (ADCLKP/ADCLKN) runs at 1×. Latency is fixed at 16 clock cycles in two-wire mode, with aperture delay matching ±200 ps between channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - Enables 11.4 ENOB and 70.6 dBFS SNR for precision medical and test equipment digitization. |
| Sample Rate | 100 MSPS max (two-wire LVDS) - Supports Nyquist sampling of signals up to 50 MHz without aliasing. |
| SNR / SFDR | 70.6 dBFS / 85 dBc at 10 MHz - Validates dynamic range for ultrasound beamforming and communication IF sampling. |
| Power Consumption | 640.8 mW total at 100 MSPS - Translates to 80 mW/channel, enabling dense multi-channel systems with thermal headroom. |
| Analog Input BW | 500 MHz - Ensures minimal amplitude/phase distortion for wideband RF and pulsed echo signals. |
| Aperture Jitter | 320 fs rms - Limits sampling uncertainty to <0.02 LSB at 10 MHz, preserving signal integrity in coherent applications. |
| Digital Filtering | Programmable FIR decimation + IIR high-pass - Allows harmonic interference rejection and baseline drift correction without external DSP. |
Pinout & Package
ADS5295PFP is housed in a 12-mm × 12-mm TQFP-80 (PFP) package with exposed thermal pad (θJA = 30.8°C/W), suitable for conduction-cooled medical and industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1P–IN8P / IN1N–IN8N | Differential analog inputs (8 channels) | Accept 2-VPP differential signals with 3.7-pF input capacitance; require matched 50-Ω routing for optimal SNR. |
| CLKP / CLKN | Differential clock input | Accept LVDS, LVPECL, or ac-coupled CMOS; support 10–100 MSPS with 35–65% duty cycle tolerance. |
| OUT1A_P/OUT1A_N … OUT8B_P/OUT8B_N | LVDS serialized data outputs | Two sets per channel: A-pins for one-wire, B-pins for two-wire mode; require 100-Ω termination at receiver. |
| LCLKP / LCLKN | LVDS bit clock output (6× sample rate) | Synchronizes serialized data in two-wire mode; enables deterministic timing for FPGA capture logic. |
| ADCLKP / ADCLKN | LVDS frame clock output (1× sample rate) | Indicates start of each sample frame; used for channel alignment and time-stamping across 8 channels. |
| REFT / REFB / VCM | Reference and common-mode pins | Support internal reference (1.45 V / 0.45 V) or external drive; VCM provides stable 0.95-V bias for input networks. |
| RESET / PD / SYNC | Digital control inputs | Enable global reset, power-down (45 mW), and synchronized multi-device data rate reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Low-frequency noise suppression mode | Improves SNR by ~3 dB in 1-MHz band near DC - critical for ultrasound Doppler and low-frequency sensor digitization. |
| Programmable FIR decimation + oversampling | Reduces harmonic interference and quantization noise before output serialization - eliminates need for external digital filters. |
| Channel averaging mode | Configurable per-channel averaging reduces effective noise floor - enhances resolution for static or slow-varying biomedical signals. |
| One- or two-wire LVDS serialization | Two-wire mode maintains 100 MSPS while limiting serial data rate to 600 Mbps per channel - compatible with low-cost FPGA I/O banks. |
| Programmable mapping of inputs to outputs | Allows flexible routing of analog channels to LVDS lanes - simplifies PCB layout and supports custom channel interleaving schemes. |
Applications
| Ultrasound Imaging Front-End | Communications IF Digitization |
|---|---|
Use Scenario: 8-channel beamformer digitizing 2–15 MHz echo return signals from phased-array transducers. IC Role / Device Role / Timing Role: Simultaneous sampling ADC with sub-200-ps inter-channel aperture matching and low-jitter clock distribution. Use Value: 70.6 dBFS SNR and 3-dB low-frequency noise suppression enable detection of weak Doppler shifts amid tissue clutter. |
Use Scenario: Digitizing 10–40 MHz IF signals in software-defined radio or broadband baseband receivers. IC Role / Device Role / Timing Role: High-SFDR (85 dBc) ADC with programmable FIR filtering to suppress adjacent-channel interference before digital downconversion. Use Value: 500-MHz analog bandwidth and 85 dBc SFDR preserve signal fidelity across wide instantaneous bandwidths. |
| Multichannel Data Acquisition | Test & Measurement Equipment |
Use Scenario: Modular DAQ system acquiring synchronized voltage/current waveforms from 8 sensors in industrial monitoring. IC Role / Device Role / Timing Role: Low-power (80 mW/channel), compact 80-pin QFP ADC with integrated digital gain and DC offset correction. Use Value: Standby power (192 mW) and global power-down (45 mW) enable energy-efficient burst-mode acquisition. |
Use Scenario: Portable oscilloscope or spectrum analyzer requiring >100 MSPS sampling with deterministic latency. IC Role / Device Role / Timing Role: Fixed 16-cycle latency in two-wire mode and 320-fs aperture jitter ensure repeatable time-domain measurements. Use Value: LVDS output clock edges (LCLKP/LCLKN) provide precise timing references for FPGA-based trigger and analysis logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5292IPFP | 10-bit, 100-MSPS, same 8-channel QFP-80 package and pinout - lower resolution but 10× LVDS serialization reduces FPGA I/O count. | Preferred for cost-sensitive systems where 10-bit ENOB suffices and board space is constrained. | Select when SNR >66 dBFS is adequate and FPGA resource count limits LVDS lane usage. |
| ADS5272IPFP | 12-bit, 65-MSPS, 8-channel, identical digital features and QFP-80 footprint - lower max sample rate but improved 71.5 dBFS SNR at 5 MHz. | Better suited for lower-bandwidth ultrasound or vibration analysis where thermal/power budget is tighter. | Choose when 65 MSPS satisfies Nyquist requirements and higher SNR at mid-band frequencies is prioritized over speed. |
Compared with ADS5295PFP, ADS5292IPFP trades 2 bits of resolution for reduced FPGA interface complexity, while ADS5272IPFP sacrifices 35 MSPS to achieve superior SNR and lower power (520 mW), making it preferable for thermally constrained portable instruments.
Availability
ADS5295PFP is available at Aetrix Electronics and suitable for ultrasound imaging systems, communications infrastructure, and multichannel data acquisition requiring stable component supply, long-term manufacturability, and TI's production-grade qualification.
Supply support for ADS5295PFP 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 ADS5295PFP belongs to TI's high-channel-count, low-power ADC family designed specifically for ultrasound, radar, and instrumentation front-ends where simultaneous sampling, SNR preservation, and FPGA-friendly LVDS interfacing are mandatory.
FAQ
What is the maximum sample rate supported by ADS5295PFP in two-wire LVDS mode?
The ADS5295PFP supports a maximum sample rate of 100 MSPS in two-wire LVDS mode, with serialized output data rates up to 600 Mbps per channel. This configuration uses both OUTxA and OUTxB pin pairs per channel and requires LCLKP/LCLKN for bit-level synchronization. The device maintains full 12-bit resolution and specified SNR/SFDR performance at this rate.
Does ADS5295PFP include an internal voltage reference?
Yes, the ADS5295PFP integrates a trimmed internal reference with REFT (1.45 V) and REFB (0.45 V) pins, enabling accurate and consistent full-scale operation across devices without external components. While external references can be used, TI specifies best performance - including 70.6 dBFS SNR - is achieved in internal reference mode.
How does the low-frequency noise suppression mode improve ADS5295PFP performance?
The low-frequency noise suppression mode in ADS5295PFP improves SNR by approximately 3 dB in the 1-MHz band near DC, achieved through optimized sampling and digital processing. This feature directly benefits ultrasound Doppler applications and low-frequency sensor interfaces where 1/f noise dominates, without requiring external hardware or firmware compensation.
What is the aperture delay matching specification between channels of ADS5295PFP?
The ADS5295PFP guarantees aperture delay matching of ±200 ps between any two channels on the same device, measured under standard operating conditions. This tight matching ensures coherent multi-channel sampling for beamforming and phase-sensitive measurements, and is maintained across temperature (–40°C to +85°C) and supply variations.
Can ADS5295PFP operate with a single-ended input clock?
Yes, ADS5295PFP supports single-ended clock inputs: tie CLKN to 0 V and drive CLKP with a 1.5-VPP sine wave or CMOS signal meeting VIH/VIL thresholds (1.3 V / 0.4 V). However, differential clocking (CLKP/CLKN) is recommended for optimal jitter performance and noise immunity, especially at 100 MSPS.
ADS5295PFP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 80-TQFP Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 100M
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 8
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 80-HTQFP (12x12)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS5295PFP FAQ
1.How can I place an order for ADS5295PFP through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS5295PFP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS5295PFP reliable?
The price and inventory of ADS5295PFP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS5295PFP is usually 5 days.
3.What payment methods are accepted for ADS5295PFP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS5295PFP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS5295PFP?
ADS5295PFP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS5295PFP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS5295PFP?
For technical support, including ADS5295PFP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS5295PFP requirements.
6.How does Aetrix verify that ADS5295PFP is sourced from the original manufacturer or authorized distributors?
All ADS5295PFP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS5295PFP meets industry standards.
7.What is the process for return or replacement of ADS5295PFP?
All ADS5295PFP units undergo pre-shipment inspection (PSI). If there is an issue with ADS5295PFP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS5295PFP part is unused and in its original packaging.
Return procedure for ADS5295PFP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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