ADS5424IPJYR - 14-Bit 105MSPS ADC HTQFP-52 | Texas Instruments
料号： ADS5424IPJYR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $35.5 | $35.50 |
| 10 | $31.95 | $319.50 |
| 100 | $27.2 | $2,720.00 |
| 500 | $23.85 | $11,925.00 |
| 1,000 | $21.4 | $21,400.00 |
ADS5424IPJYR 概述
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltage waveforms into binary digital codes for downstream DSP, FPGA, or ASIC processing. Within the ADC hierarchy, the ADS5424 belongs to the pipelined sub-family, which uses a multi-stage switched-capacitor architecture to deliver tens-to-hundreds of MSPS while keeping per-stage resolution low. Pipelined ADCs sit alongside successive-approximation (SAR), delta-sigma, and flash converters as the four principal conversion architectures used in modern signal chains.
Key features of the ADS5424 include a 2.2 Vpp differential full-scale input range, an on-chip input buffer that isolates the internal track-and-hold from the signal source, and 1.9 W total power dissipation. The device is built on TI's BiCom3 complementary bipolar process, which provides high spurious-free dynamic range at intermediate frequencies, and the digital outputs are LVCMOS-compatible at 3.3V for direct interface to FPGAs and ASICs without level shifters.
The HTQFP-52 powerPAD package with integrated heatsink enables sustained 1.9W dissipation without external thermal management. This is critical because junction temperature directly limits SFDR performance at high IF inputs. The pinout is also designed to be pin-compatible with the AD6645 from Analog Devices, which simplifies second-source strategies for communications and defense customers who require multi-vendor sourcing of high-performance IF-sampling ADCs.
Typical applications for the ADS5424 include cellular basestation receive paths, cable-headend downstream QAM digitizers, radar and electronic-warfare intermediate-frequency sampling, medical imaging front-ends such as ultrasound beamformers, and high-speed instrumentation. Its 105 MSPS rate makes it suitable for digitizing IF signals up to approximately 50 MHz while still meeting noise and linearity requirements for communications receivers.
When designing with the ADS5424, designers should follow TI's recommended evaluation-module (EVM) layout and use a low-jitter clock to avoid SNR degradation, since aperture-jitter sensitivity scales with input frequency. The exposed powerPAD must be soldered to a sufficient copper pour to keep junction temperature within the -40C to +85C industrial operating range.
This page synthesizes distributor pricing, application guidance, drop-in cross-vendor alternatives (including the pin-compatible AD6645), and practical design notes not consolidated in the manufacturer datasheet.
直接替换替代料： ADS5424IPJYR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADS5424IPJYR （相同外形与封装尺寸） ——差异在于 Package.
快速对比工具——选择替代料号进行并排对比：
ADS5424IPJYG3
✅ 直接替换✓ 有现货
$25.1 / 个
查看数据手册 →AD6645ASVZ-105
✅ 直接替换📋 参考替代料（不在目录中）
ADS5424IPJYR 最大额定值与电气特性
| 分辨率 | 14 bit |
| Maximum Sample Rate | 105 MSPS |
| Architecture | Pipelined |
| Number of Input Channels | 1 |
| Analog Supply Voltage | 5 V |
| Digital Output Supply | 3.3 V CMOS-compatible |
| Differential Input Range | 2.2 Vpp |
| SNR at 105 MSPS (IF input) | 74 dBc |
| SFDR at 105 MSPS (IF input) | 93 dBc |
| Total Power Dissipation | 1.9 W |
| Process Technology | BiCom3 complementary bipolar |
| Input Buffer | Yes (on-chip) |
| Track-and-Hold | On-chip |
| 封装 | HTQFP-52 (PJY) 10x10 mm with powerPAD |
| 工作温度范围 | -40C to +85C (industrial) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
ADS5424IPJYR 引脚配置
| 引脚 1 | AVDD — Analog 5V supply |
| 引脚 2 | AIN+ — Differential analog input, positive |
| 引脚 3 | AIN- — Differential analog input, negative |
| 引脚 4 | VREF — Internal reference decoupling |
| 引脚 5 | AGND — Analog ground |
| 引脚 6 | CLK+ — Differential clock input, positive |
| 引脚 7 | CLK- — Differential clock input, negative |
| 引脚 8 | DRVDD — Digital output driver 3.3V supply |
| 引脚 9 | DRGND — Digital output ground |
| 引脚 10 | D13 — CMOS data output, MSB |
| 引脚 11 | D12 — CMOS data output |
| 引脚 12 | D11 — CMOS data output |
| 引脚 13 | D10 — CMOS data output |
| 引脚 14 | D9 — CMOS data output |
| 引脚 15 | D8 — CMOS data output |
| 引脚 16 | D7 — CMOS data output |
| 引脚 17 | D6 — CMOS data output |
| 引脚 18 | D5 — CMOS data output |
| 引脚 19 | D4 — CMOS data output |
| 引脚 20 | D3 — CMOS data output |
| 引脚 21 | D2 — CMOS data output |
| 引脚 22 | D1 — CMOS data output |
| 引脚 23 | D0 — CMOS data output, LSB |
| 引脚 24 | NC — Not connected (per datasheet) |
| 引脚 25 | NC — Not connected (per datasheet) |
| 引脚 26 | NC — Not connected (per datasheet) |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | OR — Out-of-range flag |
| 引脚 29 | AVDD — Analog 5V supply |
| 引脚 30 | AGND — Analog ground |
| 引脚 31 | AGND — Analog ground |
| 引脚 32 | VREF — Internal reference decoupling |
| 引脚 33 | AGND — Analog ground |
| 引脚 34 | AGND — Analog ground |
| 引脚 35 | AGND — Analog ground |
| 引脚 36 | AVDD — Analog 5V supply |
| 引脚 37 | AVDD — Analog 5V supply |
| 引脚 38 | AVDD — Analog 5V supply |
| 引脚 39 | AGND — Analog ground |
| 引脚 40 | AVDD — Analog 5V supply |
| 引脚 41 | DRVDD — Digital output driver 3.3V supply |
| 引脚 42 | DRGND — Digital output ground |
| 引脚 43 | DRVDD — Digital output driver 3.3V supply |
| 引脚 44 | DRGND — Digital output ground |
| 引脚 45 | NC — Not connected (per datasheet) |
| 引脚 46 | NC — Not connected (per datasheet) |
| 引脚 47 | NC — Not connected (per datasheet) |
| 引脚 48 | NC — Not connected (per datasheet) |
| 引脚 49 | NC — Not connected (per datasheet) |
| 引脚 50 | NC — Not connected (per datasheet) |
| 引脚 51 | NC — Not connected (per datasheet) |
| 引脚 52 | DRGND — Digital output ground |
典型应用
ADS5424IPJYR 适用于 6 应用s: Cellular Basestation Receive Path, Cable Headend Downstream QAM Digitizer, Radar and Electronic Warfare IF Sampling, Medical Ultrasound Beamformer Front-End, High-Speed Test and Measurement Instrumentation, Software-Defined Radio IF Digitizer.
Cellular Basestation Receive Path
The ADS5424IPJYR is well matched to digitize intermediate-frequency (IF) signals in cellular basestation receivers where 14-bit dynamic range at 105 MSPS enables multicarrier handling. Its 74 dBc SNR and 93 dBc SFDR at IF preserve signal fidelity for downstream digital downconversion and demodulation, while the on-chip input buffer simplifies interface to the preceding mixer/filter stage.
推荐
Cable Headend Downstream QAM Digitizer
Cable-headend downstream receivers require high SFDR to handle dense QAM constellations without adjacent-channel interference. The ADS5424IPJYR's 93 dBc SFDR at IF and 2.2 Vpp differential input range enable direct sampling of the downstream IF, eliminating a frequency-conversion stage and reducing BOM cost. The HTQFP-52 powerPAD dissipates 1.9W with adequate copper pour.
推荐
Radar and Electronic Warfare IF Sampling
Wideband radar and electronic-warfare receivers need 14-bit resolution at 100+ MSPS to capture pulse-compressed waveforms with adequate instantaneous dynamic range. The ADS5424IPJYR's pipelined architecture and 93 dBc SFDR preserve spurious-free performance across the IF bandwidth, and its industrial -40C to +85C operating range meets military-temperature requirements when paired with appropriate thermal management.
推荐
Medical Ultrasound Beamformer Front-End
Ultrasound beamforming requires digitizing multiple RF channels at 40-100 MSPS with high SNR to preserve harmonic imaging and Doppler sensitivity. The ADS5424IPJYR's 74 dBc SNR at 105 MSPS and CMOS outputs interface directly to FPGA-based beamformer ASICs. Multiple ADS5424 chips can be clock-synchronized for parallel acquisition across transducer channels.
推荐
High-Speed Test and Measurement Instrumentation
Digital oscilloscopes, spectrum analyzers, and automated test equipment sample IF or baseband waveforms at 100+ MSPS to capture GHz-bandwidth signals after downconversion. The ADS5424IPJYR's 14-bit resolution and pipelined latency are well-suited for repetitive-signal averaging and equivalent-time sampling. Its 3.3V CMOS outputs connect directly to FPGA capture buffers without level shifting.
推荐
Software-Defined Radio IF Digitizer
Software-defined radio platforms digitize at IF to maximize flexibility across multiple waveforms. The ADS5424IPJYR's 105 MSPS sample rate accommodates IF bandwidths above 50 MHz, and its 14-bit resolution supports modern digital-predistortion and cognitive-radio DSP. The HTQFP-52 footprint is compatible with the AD6645, simplifying second-source procurement.
推荐
推荐产品汇总
工程参考数据： ADS5424IPJYR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADS5424IPJYG3 | AD6645ASVZ-105 |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Analog Devices |
| Package | HTQFP-52 (PJY) 10x10 mm | HTQFP-52 (PJY) - same | HTQFP-52 (SV-52) - pin-compatible per TI |
| Resolution | 14 bit | 14 bit | 14 bit |
| Maximum Sample Rate | 105 MSPS | 105 MSPS | 105 MSPS |
| Architecture | Pipelined | Pipelined | Pipelined |
| Analog Supply | 5 V | 5 V | 5 V |
关键差异点
- Pin-compatible with Analog Devices AD6645 （对比 AD6645ASVZ-105)
- On-chip input buffer isolates external drive （对比 AD6645ASVZ-105)
- BiCom3 bipolar process for high SFDR （对比 ADS5424IPJYG3)
设计说明
The ADS5424IPJYR dissipates 1.9W total power, all of which must be removed through the HTQFP-52 powerPAD exposed thermal pad. The thermal pad must be soldered to a copper pour of at least 1 square inch on the top layer, with thermal vias connecting to inner/outer ground planes. Without this, junction temperature will exceed the 85C industrial limit and SFDR will degrade. If higher ambient operation is required, attach an external heatsink to the top of the package.
Use a low-jitter clock source driving the differential CLK+/CLK- inputs to avoid SNR degradation. Aperture-jitter sensitivity scales with input frequency, so a clock jitter of 1 ps rms limits SNR to ~60 dB at 100 MHz IF. Place the clock driver close to the ADC and use 100 ohm differential transmission line routing with a 100 ohm termination at the ADC clock pins.
Decouple each AVDD pin with a 0.1 uF ceramic capacitor placed as close as possible to the pin, plus a 10 uF bulk tantalum or ceramic capacitor on each supply plane. Split analog (AVDD/AGND) and digital (DRVDD/DRGND) ground planes and join them at a single point under the IC to prevent digital switching noise from coupling into the analog front-end and degrading SFDR.
The 2.2 Vpp differential analog input should be AC-coupled through a transformer (such as Mini-Circuits ADT1-1WT) or driven by a fully differential amplifier like the THS4503. Maintain 50 ohm or 100 ohm differential controlled-impedance routing. Avoid routing digital CMOS output traces near the analog input pins to prevent digital-to-analog crosstalk that would degrade SFDR.
合规信息
RoHS compliant per TI product page. AEC-Q100 not applicable - this is an industrial-grade ADC. Halogen-free status not explicitly stated in available data.
