MAX1419ETN+D - 15-Bit 65Msps ADC | 56-QFN | Maxim Integrated
MPN: MAX1419ETN+D ✓ نشطMAX1419ETN+D نظرة عامة
An ADC (Analog-to-Digital Converter) is a data-conversion integrated circuit that samples continuous-time analog signals and produces discrete-time, finite-resolution digital codes. Within the data-converter hierarchy, the MAX1419ETN+D belongs to the high-speed pipeline ADC class, which sits between general-purpose SAR (Successive Approximation Register) ADCs and very-high-speed flash converters. Pipeline ADCs combine a small number of low-resolution stages with digital error correction to achieve 10-16 effective bits at sample rates from 20 to 200 Msps, making them the dominant architecture for wireless baseband, ultrasound, and broadband instrumentation.
Key specifications include 65 Msps maximum conversion rate, 15-bit resolution, a 200 MHz -1 dB full-power input bandwidth on the track-and-hold, an internal 2.56 Vp-p differential input range, and a typical SNR near 75 dBFS at low input frequencies. The part supports CMOS-compatible digital outputs and offers a per-pin or byte-wide output mode for flexible FPGA or ASIC interfacing.
Architecturally, the MAX1419ETN+D uses a multi-stage pipelined converter core with on-chip bandgap reference and integrated input track-and-hold. The 200 MHz input bandwidth allows the device to be clocked at up to 65 Msps while preserving -79.3 dBFS noise floor performance for baseband signals below approximately 30 MHz, while optional external filtering can extend usable bandwidth into the IF range.
Typical applications include wireless baseband digitization for WCDMA/UMTS receivers, IF sampling in narrow-band radio links, medical ultrasound signal chains, and high-speed instrumentation. The wide input bandwidth also makes the part useful as a general-purpose 65 Msps digitizer in multichannel data-acquisition boards.
Designers should pay close attention to analog/digital supply decoupling, ground-plane partitioning, and the proper sequencing of the +5 V AVDD and +3 V DVDD rails. The exposed paddle must be soldered to a continuous low-impedance ground plane to achieve the rated thermal and dynamic performance, and the differential input must be DC-biased within the part's common-mode range for full-scale codes.
This page synthesizes distributor pricing, same-family pin-compatible alternatives (MAX1418, MAX1427, MAX1429, MAX1430), and practical layout notes that go beyond the manufacturer datasheet.
بدائل مباشرة لـ MAX1419ETN+D — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع MAX1419ETN+D (نفس عامل الشكل والبصمة) — يختلف في Noise Floor, Terminal Form, Package, Number of Channels, Analog Supply Voltage.
MAX1418ETN+D
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MAX1427ETN+D
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←MAX1428ETN+D
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MAX1429ETN+D
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MAX1430ETN+D
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←MAX1419ETN+D الحدود القصوى والخصائص الكهربائية
| الدقة | 15 bit |
| Sample Rate (max) | 65 Msps |
| Noise Floor | -79.3 dBFS (baseband, per datasheet title) |
| Number of Channels | 1 |
| Input Configuration | Fully differential |
| Full-Scale Input Range | 2.56 Vp-p (differential) |
| -1 dB Full-Power Input Bandwidth | 200 MHz |
| Analog Supply Voltage (AVDD) | 5 V |
| Digital Supply Voltage (DVDD) | 3 V |
| نطاق درجة حرارة التشغيل | -40 C to +85 C (industrial) |
| العلبة | 56-pin QFN-EP (HVQCCN, 8x8 mm) |
| نوع التركيب | Surface Mount |
| Terminal Form | No-lead |
| حالة RoHS | Compliant |
| Lead-Free / Halogen-Free | Lead-free per Maxim datasheet |
دليل تكوين أطراف MAX1419ETN+D 56-pin qfn-ep (hvqccn, 8x8 mm)
تكوين الأطراف لـ MAX1419ETN+D (حزمة 56-pin qfn-ep (hvqccn, 8x8 mm)). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ MAX1419ETN+D.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
MAX1419ETN+D مناسب لـ 6 التطبيقs: Wireless Baseband Digitization, Medical Ultrasound Signal Chain, IF Sampling in Narrowband Radio, Broadband Data Acquisition, Cable Modem / Set-Top Box Downstream Digitization, Radar and Lidar Baseband Digitization.
Wireless Baseband Digitization
The MAX1419ETN+D's 65 Msps sample rate and 15-bit resolution make it a strong fit for WCDMA/UMTS baseband I/Q digitization where a -79.3 dBFS noise floor preserves dynamic range for receive sensitivity. Placed between the analog front-end quadrature demodulator and the digital baseband DSP/ASIC, the ADC accepts a fully differential 2.56 Vp-p signal from a passive antialiasing RC network. Designers should provide a common-mode bias within the part's input range and use a low-jitter clock to keep aperture-induced SNR degradation below 0.5 dB at 65 Msps.
موصى به
Medical Ultrasound Signal Chain
In ultrasound receivers the MAX1419ETN+D digitizes the post-TGC (time-gain-compensated) signal at up to 65 Msps with 15-bit resolution. The 200 MHz -1 dB full-power input bandwidth comfortably exceeds the harmonic content of 5-15 MHz ultrasound transducers, while the -79.3 dBFS noise floor preserves dynamic range for harmonic and contrast imaging. Multi-channel ultrasound boards typically place one MAX1419ETN+D per channel in parallel, sharing a common low-jitter clock and a continuous ground plane under the exposed paddle to achieve rated crosstalk and SNR performance.
موصى به
IF Sampling in Narrowband Radio
With a 200 MHz input bandwidth the MAX1419ETN+D can undersample intermediate frequencies in narrowband receivers, eliminating one or more analog IF downconversion stages. Per the Maxim datasheet selection table, the MAX1418 (IF-grade) sibling is preferred when the IF is high; the MAX1419ETN+D itself targets baseband, but its wide T/H bandwidth allows it to handle low IFs below ~30 MHz while maintaining -79.3 dBFS noise floor. Designers should pair the ADC with a sharp antialiasing bandpass filter and a low-jitter clock source to keep SNR above the rated value.
موصى به
Broadband Data Acquisition
General-purpose data-acquisition boards use the MAX1419ETN+D to digitize 15-bit wideband signals from test sensors, RF downconverters, and broadband instrumentation. At 65 Msps the part captures a Nyquist bandwidth of approximately 32.5 MHz, suitable for spectrum-analyzer-class instruments and vibration/acoustic monitoring. The +5 V AVDD / +3 V DVDD split supply simplifies mixed-signal board design, while the QFN-EP exposed paddle enables a low-impedance ground plane under the analog front end for clean analog returns.
موصى به
Cable Modem / Set-Top Box Downstream Digitization
In cable-modem downstream and digital set-top box receivers, the MAX1419ETN+D digitizes the QAM demodulated I/Q baseband at up to 65 Msps with 15-bit resolution. The -79.3 dBFS noise floor provides the dynamic-range margin needed for 256-QAM and 1024-QAM symbol recovery, while the 2.56 Vp-p differential input range matches typical tuner output levels after passive attenuation. The 56-QFN-EP footprint keeps the analog chain compact on space-constrained consumer hardware.
موصى به
Radar and Lidar Baseband Digitization
Automotive and industrial radar/lidar front-ends use the MAX1419ETN+D to digitize baseband I/Q signals from FMCW and pulsed receivers. The 65 Msps sample rate supports 20-30 MHz baseband chirp bandwidth while the 200 MHz input T/H bandwidth preserves harmonic and beat-frequency content. Designers should pay close attention to clock jitter - a 1 ps RMS jitter contributes roughly 9 dB of SNR degradation at 65 Msps, which can dominate the -79.3 dBFS noise floor of the ADC itself.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ MAX1419ETN+D — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | MAX1418ETN+D | MAX1427ETN+D | MAX1428ETN+D | MAX1429ETN+D | MAX1430ETN+D |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 56-QFN-EP (HVQCCN) | 56-QFN-EP (HVQCCN) - same | 56-QFN-EP (HVQCCN) - same | 56-QFN-EP (HVQCCN) - same | 56-QFN-EP (HVQCCN) - same | 56-QFN-EP (HVQCCN) - same |
| Sample Rate (Msps) | 65 | 65 | 80 | 80 | 100 | 100 |
| Resolution (bit) | 15 | 15 | 15 | 15 | 15 | 15 |
| Target Application | Baseband | IF | Baseband | IF | Baseband | IF |
| Analog Supply (V) | 5 | 5 | 5 | 5 | 5 | 5 |
| Digital Supply (V) | 3 | 3 | 3 | 3 | 3 | 3 |
| Input Configuration | Fully differential | Fully differential | Fully differential | Fully differential | Fully differential | Fully differential |
أبرز الفروقات
- Pin-compatible speed and application-grade options within the same footprint (مقابلMAX1418ETN+D)
- Lower power and cost at matched baseband performance (مقابلMAX1427ETN+D)
- True Maxim cross-family upgrade path (مقابلMAX1430ETN+D)
ملاحظات التصميم
Estimated: at 65 Msps with a 30 MHz input the MAX1419ETN+D is sensitive to clock jitter. Use a dedicated low-jitter clock driver (jitter below 1 ps RMS) and route the clock trace as a 50 ohm microstrip with continuous ground reference. Place a 10 nF X7R bypass capacitor within 2 mm of each AVDD pin and a 1 uF tantalum or polymer cap at the regulator output. Connect the exposed paddle to a continuous low-impedance analog ground plane cut from the digital return plane; do not route digital signals directly under the exposed paddle.
The MAX1419ETN+D uses a split +5 V AVDD / +3 V DVDD supply. Sequence AVDD before DVDD at power-up (or use the part's on-chip POR tolerance) to prevent digital output drivers from sinking current into an unpowered analog core. Decouple each AVDD pin with 10 nF + 100 nF + 10 uF in parallel, and isolate the analog 5 V regulator from the digital 3 V regulator with separate ferrite beads to prevent switching-noise coupling into the reference.
Drive the fully differential analog input with a transformer-coupled or op-amp-driven differential source biased to the part's specified common-mode voltage. Estimated: source impedance above 100 ohm at the input will degrade the -79.3 dBFS noise floor; keep the differential source impedance at or below 50 ohm and place the antialiasing RC network within 5 mm of the input pins. For the digital CMOS outputs, length-match the bus to within 2 mm across all bits to avoid code-dependent skew on the capture clock.
Do not exceed the 2.56 Vp-p differential input range - overdrive at the input clips codes and can damage the ESD structure of the front-end T/H. Do not float the exposed paddle; unterminated paddles cause both thermal runaway and degraded SNR. Do not drive the digital outputs into a bus that is held at a higher DVDD than the part - level translation is required if interfacing to a 3.3 V-tolerant FPGA when DVDD is 3.0 V.
معلومات الامتثال
RoHS-compliant and lead-free per Maxim datasheet packaging information. AEC-Q100 not applicable - this is a commercial/industrial ADC, not an automotive-qualified part.
