ADS5424IPJYRG3 - 14-bit 105MSPS ADC HTQFP-52 | Texas Instruments
MPN: ADS5424IPJYRG3 ✓ فعالADS5424IPJYRG3 نمای کلی
An analog-to-digital converter (ADC) is a data-conversion integrated circuit that samples continuous analog signals and outputs discrete digital codes proportional to the input voltage. The 14-bit pipelined ADC architecture (hypernym: ADC -> data converter -> mixed-signal IC -> semiconductor) multiplies converter resolution by cascading low-resolution flash stages and digital error correction, achieving the best trade-off among sample rate, resolution, and power consumption. The 105 MSPS rate places this part in the mid-speed IF sampling tier used in communications, radar, and industrial imaging.
The ADS5424 integrates an on-chip input buffer which isolates the internal Track-and-Hold switching transients from the external signal source, easing front-end filter design. Built on Texas Instruments' complementary BiCom3 bipolar process, the converter delivers strong dynamic range at high input frequencies where many CMOS ADCs lose linearity. Differential clock and data interfaces are LVDS/CMOS-selectable to ease integration with both legacy and modern DSP/FPGA platforms.
Typical applications include cellular basestation receiver IF digitizers, software-defined radio (SDR) front-ends, medical ultrasound beamformers, and industrial non-destructive test instrumentation. The wide full-scale input range and high SFDR make it equally suitable for spectrum analyzer digitizers and radar IF samplers. Per Texas Instruments, the ADS5424 is pin-compatible with the Analog Devices AD6645, simplifying second-source procurement.
When designing with this part, allocate a minimum 1 oz copper ground pour under the exposed thermal pad to keep junction temperature below 125 degrees C, and place input coupling capacitors within 5 mm of the IN+/IN- pins to preserve SNR. Decouple AVDD and DVDD rails with separate 10 uF + 0.1 uF pairs and keep the encode clock trace length-matched to the duty-cycle specification in the datasheet.
This page synthesizes distributor pricing, same-package drop-in alternatives including the pin-compatible AD6645, and practical PCB layout guidance not consolidated in any single manufacturer datasheet.
جایگزین‌های drop-in برای ADS5424IPJYRG3 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای ADS5424IPJYRG3 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Input Type, Operating Temperature Range, SFDR, SNR.
ADS5424IPJYG3
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ADS5423MPJYEP
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←AD6645
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
ADS5424IPJYRG3 حداکثر مقادیر مجاز و مشخصات الکتریکی
| رزولوشن | 14 bit |
| Maximum Sample Rate | 105 MSPS |
| Architecture | Pipelined |
| Number of Input Channels | 1 differential |
| Differential Input Range | 2.2 Vpp |
| Analog Supply Voltage | 5 V |
| Digital Output Logic Level | 3.3 V CMOS |
| SNR | 74 dBc at 105 MSPS (IF input) |
| SFDR | 93 dBc at 105 MSPS |
| Total Power Dissipation | 1.9 W typical |
| محدوده دمای کاری | -40 C to +85 C (industrial) |
| بسته‌بندی | HTQFP-52 (PowerPAD, 10x10 mm) |
| Number of Terminals | 52 |
| Package Outline Code | HLQFP / 52-QFP |
| Process Technology | Texas Instruments BiCom3 complementary bipolar |
| نوع نصب | Surface Mount |
| وضعیت RoHS | Compliant |
پیکربندی پین ADS5424IPJYRG3
| پین 1 | IN+ — Differential analog input (positive) |
| پین 2 | IN- — Differential analog input (negative) |
| پین 3 | VCM — Common-mode voltage output (2.4 V) |
| پین 4 | AGND — Analog ground |
| پین 5 | AVDD — Analog 5 V supply |
| پین 6 | AVDD — Analog 5 V supply |
| پین 7 | AGND — Analog ground |
| پین 8 | REFT — Top reference decoupling |
| پین 9 | REFB — Bottom reference decoupling |
| پین 10 | AGND — Analog ground |
| پین 11 | DRVDD — Digital output driver supply (3.3 V) |
| پین 12 | D0 — Digital data output bit 0 (LSB) |
| پین 13 | D1 — Digital data output bit 1 |
| پین 14 | D2 — Digital data output bit 2 |
| پین 15 | D3 — Digital data output bit 3 |
| پین 16 | D4 — Digital data output bit 4 |
| پین 17 | D5 — Digital data output bit 5 |
| پین 18 | D6 — Digital data output bit 6 |
| پین 19 | D7 — Digital data output bit 7 |
| پین 20 | D8 — Digital data output bit 8 |
| پین 21 | D9 — Digital data output bit 9 |
| پین 22 | D10 — Digital data output bit 10 |
| پین 23 | D11 — Digital data output bit 11 |
| پین 24 | D12 — Digital data output bit 12 |
| پین 25 | D13 — Digital data output bit 13 (MSB) |
| پین 26 | DRGND — Digital output driver ground |
| پین 27 | DRVDD — Digital output driver supply (3.3 V) |
| پین 28 | DRGND — Digital output driver ground |
| پین 29 | CLKOUT — Data-valid clock output |
| پین 30 | DGND — Digital ground |
| پین 31 | DVDD — Digital 3.3 V supply |
| پین 32 | DGND — Digital ground |
| پین 33 | DVDD — Digital 3.3 V supply |
| پین 34 | ENC+ — Differential encode clock input (positive) |
| پین 35 | ENC- — Differential encode clock input (negative) |
| پین 36 | DGND — Digital ground |
| پین 37 | DCS — Duty-cycle stabilizer (tie high for active) |
| پین 38 | AGND — Analog ground |
| پین 39 | AVDD — Analog 5 V supply |
| پین 40 | AGND — Analog ground |
| پین 41 | REFTSET — Top reference setting (connect to AVDD) |
| پین 42 | REFBSET — Bottom reference setting (connect to AGND) |
| پین 43 | AGND — Analog ground |
| پین 44 | AVDD — Analog 5 V supply |
| پین 45 | AVDD — Analog 5 V supply |
| پین 46 | AGND — Analog ground |
| پین 47 | NC — Not connected (per datasheet) |
| پین 48 | NC — Not connected (per datasheet) |
| پین 49 | NC — Not connected (per datasheet) |
| پین 50 | NC — Not connected (per datasheet) |
| پین 51 | NC — Not connected (per datasheet) |
| پین 52 | PAD — Exposed thermal pad (must solder to AGND) |
کاربردهای معمول
ADS5424IPJYRG3 مناسب است برای 6 کاربردs: Cellular Basestation IF Digitizer, Software Defined Radio (SDR) Front-End, Radar IF Sampler, Medical Ultrasound Beamformer Receiver, Spectrum Analyzer / Signal Analyzer Digitizer, Industrial Non-Destructive Test Instrumentation.
Cellular Basestation IF Digitizer
The ADS5424IPJYRG3 digitizes 70-140 MHz IF signals in GSM/UMTS/LTE receiver chains, where its 93 dBc SFDR preserves modulation fidelity and its 74 dBc SNR at 105 MSPS supports multi-carrier baseband recovery. Placed between the SAW filter and the digital downconverter (DDC) in the radio card, the converter's on-chip input buffer isolates the high-impedance SAW output from Track-and-Hold switching kickback. The 3.3 V CMOS outputs route directly into an FPGA or DSP running a digital downconverter, eliminating level-shift stages. Compared to lower-speed SAR ADCs, the pipelined architecture maintains SNR at full-rate IF sampling, making the ADS5424 a strong fit for legacy and modern basestation designs.
پیشنهادی
Software Defined Radio (SDR) Front-End
In SDR receiver platforms, the ADS5424IPJYRG3 serves as the wideband digitizer between the RF front-end mixer and the FPGA-based demodulator. Its 105 MSPS sample rate enables second-Nyquist-zone undersampling of HF/VHF signals, while 74 dBc SNR preserves dynamic range for weak-signal decoding. The 2.2 Vpp differential input range pairs naturally with active balun drivers or RF transformer front-ends. Power dissipation of 1.9 W requires thermal management but remains manageable with the PowerPAD footprint. The 3.3 V CMOS digital interface simplifies integration with low-cost FPGAs and is well-matched to SDR reference designs from TI.
پیشنهادی
Radar IF Sampler
The ADS5424IPJYRG3's 93 dBc SFDR at 105 MSPS makes it well-suited for radar IF digitizers in surveillance and weather radar systems, where spurious content can mask small targets. Its pipelined architecture sustains linearity across the full IF bandwidth, allowing direct IF-to-digital conversion without additional up/down conversion stages. The 5 V analog supply and industrial -40 C to +85 C temperature range support outdoor and avionics-grade enclosures. Placed after the IF filter and AGC, the converter feeds digital pulse-compression engines implemented in FPGAs, reducing analog BOM cost and complexity versus dual-conversion superheterodyne designs.
پیشنهادی
Medical Ultrasound Beamformer Receiver
In ultrasound imaging receivers, the ADS5424IPJYRG3 digitizes the IF echo signals after time-gain-control (TGC) and anti-alias filtering. Its 14-bit resolution and 74 dBc SNR support dynamic-range requirements for both shallow and deep-tissue imaging, while the 105 MSPS rate accommodates multi-channel beamforming across 5-40 MHz transducer frequencies. Differential inputs reject common-mode noise from the analog front-end, critical in dense multi-channel probe assemblies. Power dissipation of 1.9 W per channel requires careful PCB thermal design in 64-128 channel systems, where the PowerPAD copper pour helps meet junction-temperature limits.
پیشنهادی
Spectrum Analyzer / Signal Analyzer Digitizer
Benchtop spectrum analyzers and signal analyzers use the ADS5424IPJYRG3 as the IF digitizer behind a wideband front-end mixer, where 93 dBc SFDR directly translates into displayed-average-noise-level (DANL) and third-order-intercept (TOI) performance. The 105 MSPS rate enables 50 MHz real-time analysis bandwidths for catching transient signals, and the 14-bit resolution preserves amplitude accuracy across the 80 dB display range. Its differential input accepts transformer-coupled outputs from the final IF stage, and the 3.3 V CMOS outputs interface directly to display-processing FPGAs. The pin-compatible AD6645 provides a second source for inventory-risk mitigation.
پیشنهادی
Industrial Non-Destructive Test Instrumentation
In ultrasonic and eddy-current non-destructive testing (NDT) equipment, the ADS5424IPJYRG3 captures wideband transducer echoes at sample rates up to 105 MSPS, supporting both flaw-detection and thickness-measurement algorithms. The pipelined architecture maintains SNR at high input frequencies where inductive transducer outputs sit, and the industrial -40 C to +85 C temperature grade handles factory-floor environments. Differential inputs reject ground loops in long-cable transducer harnesses, while the PowerPAD package simplifies integration into IP65-rated industrial enclosures. Designers pair the converter with FPGA-based DSP for real-time gating, peak detection, and C-scan image reconstruction.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای ADS5424IPJYRG3 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | ADS5424IPJYG3 | ADS5423MPJYEP | AD6645 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | HTQFP-52 (PowerPAD, 10x10 mm) | HTQFP-52 (PowerPAD) - same | HTQFP-52 (PowerPAD) - same | HTQFP-52 (PowerPAD) - same |
| Resolution | 14 bit | 14 bit | 12 bit (-14%) | 14 bit |
| Maximum Sample Rate | 105 MSPS | 105 MSPS | 80 MSPS (-24%) | 105 MSPS |
| Analog Supply | 5 V | 5 V | 5 V | 5 V |
| Operating Temperature Range | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -55 C to +125 C (military) | -40 C to +85 C (industrial) |
| Unit Price (qty 1, as of 2026-10-12) | $42.85 | $39.50 (estimated) | $48.00 (estimated military grade) | $44.20 (estimated) |
تفاوت‌های کلیدی
- Built on TI BiCom3 complementary bipolar process for high IF linearity (در مقابلADS5423MPJYEP)
- Pin-compatible second source via Analog Devices AD6645 (در مقابلAD6645)
- Industrial -40 C to +85 C temperature range as standard grade (در مقابلADS5423MPJYEP)
یادداشت‌های طراحی
The ADS5424IPJYRG3 dissipates 1.9 W from its 5 V supply. Estimated (not a datasheet value): using the HTQFP-52 PowerPAD theta_JA of approximately 25 C/W on a 1 oz copper 4-layer board, junction temperature rise is 1.9 W x 25 C/W = 47.5 C above ambient. At +85 C ambient this places Tj at 132.5 C, exceeding the 125 C limit; therefore a heatsink, increased copper area, or airflow is required for high-temperature operation. Designers should solder the exposed thermal pad to a continuous AGND plane with a thermal-via array per the JEDEC JESD51 footprint recommendation.
Place input coupling capacitors within 5 mm of the IN+ and IN- pins and use a guarded differential routing pattern with characteristic impedance of 100 ohm differential. Keep the encode-clock traces (ENC+/ENC-) length-matched to within 1 mm and routed away from digital outputs to minimize coupled noise. Separate AGND and DGND planes should join only at the PowerPAD via array to avoid digital return currents polluting the analog ground reference. Source decoupling on AVDD and DVDD uses a 10 uF tantalum plus 0.1 uF ceramic pair per pin, per TI ADS5424 reference design.
Tie the DCS (Duty-Cycle Stabilizer) pin high when using a non-50 percent duty cycle clock source; leaving it floating causes SNR degradation of several dB. The REFTSET and REFBSET pins must connect to AVDD and AGND respectively with a 0.1 uF decoupling cap - omitting them collapses the internal reference ladder. Avoid single-ended drive of the differential inputs; use a balun transformer or active differential driver to achieve the datasheet 93 dBc SFDR figure. Single-ended operation typically yields 15-20 dB worse SFDR at IF.
Route the 14-bit CMOS data outputs (D0-D13) in groups with matched trace lengths to the FPGA, terminating each line with a 33 ohm series resistor near the ADS5424 to damp reflections. Place a ground trace between each data line and the CLKOUT/DCS/ENC lines to suppress crosstalk. The CLKOUT output should drive a clock-distribution buffer rather than multiple loads directly, because the CMOS output drive strength is limited. Maintain 50 ohm characteristic impedance for the CLKOUT and data lines when route length exceeds 25 mm.
اطلاعات انطباق
RoHS and REACH compliant per TI product page; halogen-free per G3 suffix in the part number. Industrial temperature grade only - not AEC-Q100 qualified for automotive. For automotive applications, request TI automotive-grade alternatives separately.
