MAX1430ETN+D - 15-Bit 100Msps IF ADC, 56-TQFN | Maxim Integrated
MPN： MAX1430ETN+D ✓ 啟用中MAX1430ETN+D 概覽
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous-time analog waveform and quantizes each instantaneous voltage into a binary codeword. High-speed pipeline ADCs such as the MAX1430 series place 10-15 low-resolution pipeline stages in cascade with digital error-correction logic, achieving sampling frequencies of 50-250 Msps while keeping per-sample latency short. The MAX1430 family sits in the signal chain between an IF downconverter (mixer, IF filter, AGC amplifier) and a baseband DSP or FPGA that performs demodulation.
Key specifications include 100 Msps maximum conversion rate, 15-bit resolution, 2.2 VP-P differential full-scale input range, -76.8 dBFS noise floor, 350 MHz full-power input bandwidth, on-chip track-and-hold, and a CMOS-compatible digital output interface. The 56-lead TQFN package exposes a thermal pad for low-impedance ground and heat sinking, essential for continuous 100 Msps operation.
The device uses a pipelined architecture with digital error correction, supporting IF sampling frequencies from 0 to 350 MHz. Internal reference and bias networks simplify external circuitry, and the digital outputs are organized for direct interfacing to ASIC/DSP chips in communications systems.
Typical applications include cellular base-station receivers, broadband cable downstream receivers, test and measurement instrumentation, radar IF digitizers, and software-defined radio (SDR) platforms that demand wide analog bandwidth and high dynamic range at the IF stage.
When designing with this part, place the 56-pin TQFN on a continuous ground plane with the exposed thermal pad soldered to 16 or more thermal vias. Decouple AVDD and DVDD separately with 0.1uF plus 10uF ceramic capacitors placed within 3 mm of each supply pin, and treat the analog and digital ground returns as separate nets that join only at the ADC.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical layout guidance beyond the manufacturer datasheet.
直接替換替代品，適用於 MAX1430ETN+D — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MAX1430ETN+D （相同外形與佔位） — 差異在於 Noise Floor, Terminal Form, Architecture, Full-Scale Input Range, Package.
MAX1430ETN+D
✅ 直接替換聯絡詢價
查看資料表 →MAX1428ETN+TD
✅ 直接替換聯絡詢價
查看資料表 →MAX1428ETN-D
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MAX1430ETN+D 最大額定值與電氣特性
| 解析度 | 15 bit |
| 取樣率 | 100 Msps (max) |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 3 V |
| Input Type | Differential |
| Full-Scale Input Range | 2.2 VP-P |
| Noise Floor | -76.8 dBFS |
| Full-Power Input Bandwidth | 350 MHz (-1 dB) |
| Data Output Format | Parallel CMOS |
| 封裝 | 56-TQFN (8x8 mm) with exposed pad |
| 工作溫度 | -40C to +85C (industrial) |
| Temperature Grade | Industrial |
| Terminal Form | No Lead (HVQCCN / TQFN) |
| 腳位數 | 56 |
| RoHS 狀態 | Compliant |
MAX1430ETN+D 56-tqfn (8x8 mm) with exposed pad 腳位配置指南
MAX1430ETN+D（56-tqfn (8x8 mm) with exposed pad 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MAX1430ETN+D.
請參閱 資料表 以查看完整腳位配置。
典型應用
MAX1430ETN+D 適用於 6 應用s: Cellular Base-Station IF Receiver, Broadband Cable Downstream Receiver, Test & Measurement Instrumentation, Radar IF Digitizer, Software-Defined Radio (SDR) Platform, Medical Imaging Receiver.
Cellular Base-Station IF Receiver
The MAX1430ETN+D digitizes the intermediate frequency (IF) output of a cellular base-station receiver, where its 100 Msps sampling rate and 350 MHz full-power analog bandwidth allow direct IF sampling without an additional downconversion stage. With a -76.8 dBFS noise floor at 100 Msps, the part resolves small WCDMA/LTE subcarriers in the presence of large blocker signals at the antenna input. Place the part between the IF SAW filter and the baseband DSP/FPGA that performs channelization and demodulation; use 0.1uF plus 10uF ceramic decoupling on each AVDD/DVDD pin and a continuous ground plane tied to the exposed thermal pad.
推薦
Broadband Cable Downstream Receiver
The MAX1430ETN+D samples downstream QAM carriers in a cable-modem headend or set-top box at IF frequencies up to 350 MHz. Its 15-bit resolution gives roughly 76 dB of spurious-free dynamic range (SFDR), which is sufficient to resolve 256-QAM constellations in dense cable plants. According to the Maxim datasheet, the differential 2.2 VP-P full-scale input range matches typical cable IF AGC outputs directly without external attenuation, simplifying the front-end while keeping the noise floor at -76.8 dBFS for clean symbol-error-rate performance.
推薦
Test & Measurement Instrumentation
The MAX1430ETN+D serves as the acquisition ADC in wide-bandwidth oscilloscopes, spectrum analyzers, and synthetic-instrument platforms where 100 Msps sampling and 350 MHz analog bandwidth are needed to capture transient and modulated signals. The 56-TQFN package exposes a thermal pad that conducts heat directly to the instrument chassis ground, supporting continuous 100 Msps operation without derating. Pair the MAX1430 with an external low-jitter clock and a low-phase-noise PLL such as the MAX9471 to meet stringent spurious and SFDR specifications required by lab-grade equipment.
推薦
Radar IF Digitizer
The MAX1430ETN+D digitizes the IF output of pulsed-Doppler and FMCW radar receivers operating at IF frequencies up to 350 MHz, where its 100 Msps rate supports pulse-to-pulse phase extraction and Doppler-bin FFT processing. With a -76.8 dBFS noise floor, the ADC provides the dynamic range required to detect small returns near large clutter returns, a key requirement for airborne and ground-surveillance radar. The 56-TQFN exposed pad maintains junction temperature within industrial limits under continuous-wave radar duty cycles.
推薦
Software-Defined Radio (SDR) Platform
The MAX1430ETN+D is well suited to software-defined radio receivers that digitize the IF output of a low-IF or zero-IF front-end and route the data stream to an FPGA for demodulation. Its 100 Msps sampling rate and 350 MHz analog bandwidth allow a single ADC to cover cellular, ISM, and public-safety bands without retuning the analog stages. According to the Maxim datasheet, the parallel CMOS output interface drives most modern FPGAs directly without external logic, simplifying the FPGA firmware timing closure.
推薦
Medical Imaging Receiver
The MAX1430ETN+D digitizes the IF signal in ultrasound and MRI receiver front-ends, where its 15-bit dynamic range and 350 MHz analog bandwidth support multi-channel beamforming. The -76.8 dBFS noise floor preserves the small echo returns critical to diagnostic image quality. Pair the ADC with an anti-aliasing IF filter and a low-noise front-end LNA; route the digital output to an FPGA or DSP that performs channel summation and image reconstruction.
推薦
推薦產品摘要
工程參考資料，適用於 MAX1430ETN+D — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MAX1430ETN+D | MAX1428ETN+TD | MAX1428ETN-D |
|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 56-TQFN (8x8) | 56-TQFN (8x8) - same | 56-TQFN (8x8) - same | 56-TQFN (8x8) - same |
| Resolution | 15 bit | 15 bit | 12 bit | 12 bit |
| Sampling Rate | 100 Msps | 100 Msps | 100 Msps | 100 Msps |
| Analog Supply | 5 V | 5 V | 5 V | 5 V |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined |
主要差異化特點
- 15-bit resolution with -76.8 dBFS noise floor at 100 Msps (對比MAX1428ETN+TD)
- 350 MHz full-power analog input bandwidth (對比MAX1428ETN+TD)
- Same-package upgrade path within MAX14xx family (對比MAX1428ETN-D)
設計說明
Decouple AVDD (5 V analog) and DVDD (3 V digital) independently. Place a 0.1 uF X7R ceramic plus a 10 uF tantalum or ceramic within 3 mm of each supply pin. Star-route AVDD and DVDD returns to a single point at the ADC exposed pad to prevent digital switching current from corrupting the analog front-end reference. According to the Maxim datasheet, AVDD current at 100 Msps is approximately 200 mA and DVDD current is approximately 30 mA, so the regulator headroom and PCB trace widths must be sized accordingly.
Solder the exposed thermal pad of the 56-TQFN package to a continuous ground plane using at least 16 thermal vias arranged in a 4x4 grid under the pad. This provides the low-inductance ground return required by the differential input and reduces junction temperature by 11-12 C/W. Keep the analog input traces short and length-matched; route the digital output bus away from the analog input to avoid digital coupling into the front-end.
Drive the MAX1430ETN+D clock input with a low-jitter, fast-edge CMOS source. According to the Maxim datasheet, aperture jitter directly degrades SNR at high IF frequencies; for a 100 Msps sample clock with 200 fs RMS jitter, SNR is limited to approximately 73 dB. Use a dedicated clock generator such as the MAX9471 and avoid distributing the sample clock through long traces or shared buffers.
Do not operate the MAX1430ETN+D without the exposed thermal pad soldered; the part will overheat and shut down at continuous 100 Msps sampling. Verify the input common-mode voltage is within the AVDD/2 +/- 0.5 V range specified in the datasheet, or SNR will degrade rapidly. Place the input anti-aliasing filter immediately adjacent to the analog input pins to limit wide-band noise folding into the baseband.
合規資訊
RoHS and REACH compliance per Maxim Integrated product page. Halogen-free status not explicitly stated in the available web data; rated industrial temperature grade -40C to +85C. Not AEC-Q100 qualified.
