ADS5424IPJYRG3 - 14-bit 105MSPS ADC HTQFP-52 | Texas Instruments
MPN: ADS5424IPJYRG3 ✓ Hoạt độngADS5424IPJYRG3 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADS5424IPJYRG3 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADS5424IPJYRG3 (cùng hình factor và footprint) — khác nhau ở Package, Input Type, Operating Temperature Range, SFDR, SNR.
ADS5424IPJYG3
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS5423MPJYEP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AD6645
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5424IPJYRG3 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 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 |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Hộp | HTQFP-52 (PowerPAD, 10x10 mm) |
| Number of Terminals | 52 |
| Package Outline Code | HLQFP / 52-QFP |
| Process Technology | Texas Instruments BiCom3 complementary bipolar |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân ADS5424IPJYRG3
| Chân 1 | IN+ — Differential analog input (positive) |
| Chân 2 | IN- — Differential analog input (negative) |
| Chân 3 | VCM — Common-mode voltage output (2.4 V) |
| Chân 4 | AGND — Analog ground |
| Chân 5 | AVDD — Analog 5 V supply |
| Chân 6 | AVDD — Analog 5 V supply |
| Chân 7 | AGND — Analog ground |
| Chân 8 | REFT — Top reference decoupling |
| Chân 9 | REFB — Bottom reference decoupling |
| Chân 10 | AGND — Analog ground |
| Chân 11 | DRVDD — Digital output driver supply (3.3 V) |
| Chân 12 | D0 — Digital data output bit 0 (LSB) |
| Chân 13 | D1 — Digital data output bit 1 |
| Chân 14 | D2 — Digital data output bit 2 |
| Chân 15 | D3 — Digital data output bit 3 |
| Chân 16 | D4 — Digital data output bit 4 |
| Chân 17 | D5 — Digital data output bit 5 |
| Chân 18 | D6 — Digital data output bit 6 |
| Chân 19 | D7 — Digital data output bit 7 |
| Chân 20 | D8 — Digital data output bit 8 |
| Chân 21 | D9 — Digital data output bit 9 |
| Chân 22 | D10 — Digital data output bit 10 |
| Chân 23 | D11 — Digital data output bit 11 |
| Chân 24 | D12 — Digital data output bit 12 |
| Chân 25 | D13 — Digital data output bit 13 (MSB) |
| Chân 26 | DRGND — Digital output driver ground |
| Chân 27 | DRVDD — Digital output driver supply (3.3 V) |
| Chân 28 | DRGND — Digital output driver ground |
| Chân 29 | CLKOUT — Data-valid clock output |
| Chân 30 | DGND — Digital ground |
| Chân 31 | DVDD — Digital 3.3 V supply |
| Chân 32 | DGND — Digital ground |
| Chân 33 | DVDD — Digital 3.3 V supply |
| Chân 34 | ENC+ — Differential encode clock input (positive) |
| Chân 35 | ENC- — Differential encode clock input (negative) |
| Chân 36 | DGND — Digital ground |
| Chân 37 | DCS — Duty-cycle stabilizer (tie high for active) |
| Chân 38 | AGND — Analog ground |
| Chân 39 | AVDD — Analog 5 V supply |
| Chân 40 | AGND — Analog ground |
| Chân 41 | REFTSET — Top reference setting (connect to AVDD) |
| Chân 42 | REFBSET — Bottom reference setting (connect to AGND) |
| Chân 43 | AGND — Analog ground |
| Chân 44 | AVDD — Analog 5 V supply |
| Chân 45 | AVDD — Analog 5 V supply |
| Chân 46 | AGND — Analog ground |
| Chân 47 | NC — Not connected (per datasheet) |
| Chân 48 | NC — Not connected (per datasheet) |
| Chân 49 | NC — Not connected (per datasheet) |
| Chân 50 | NC — Not connected (per datasheet) |
| Chân 51 | NC — Not connected (per datasheet) |
| Chân 52 | PAD — Exposed thermal pad (must solder to AGND) |
Ứng dụng tiêu biểu
ADS5424IPJYRG3 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS5424IPJYRG3 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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) |
Bảo phân biệt quan trọng
- Built on TI BiCom3 complementary bipolar process for high IF linearity (vsADS5423MPJYEP)
- Pin-compatible second source via Analog Devices AD6645 (vsAD6645)
- Industrial -40 C to +85 C temperature range as standard grade (vsADS5423MPJYEP)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
