MAX12529ETK+ - Dual 96Msps 12-Bit ADC | Maxim Integrated
MPN: MAX12529ETK+ ✓ Hoạt độngMAX12529ETK+ Tóm tắt
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltage signals into discrete digital codes. Within the broader semiconductor taxonomy, the MAX12529 belongs to the data-converter category, which sits between analog front-end signal conditioning and digital signal processing blocks. The 12-bit resolution offers 4096 discrete codes (LSB size = FS/4096), making the part suitable for communications and imaging systems where moderate dynamic range and high sampling speed are required. Dual-channel integration reduces board area by combining two synchronized converters in one package.
Key features include 96Msps sampling rate per channel, 12-bit resolution, 3.3V single-supply operation, fully differential wideband T/H inputs, and low-voltage/low-power characteristics. According to the Maxim datasheet, the part is optimized for IF and baseband sampling in wireless infrastructure, with internal quantizers that maintain SNR performance at high input frequencies. The 68-pin TQFN package provides excellent thermal dissipation through an exposed pad.
The MAX12529 utilizes a pipelined multi-stage ADC architecture with digital error correction to achieve low spurious content at high sampling rates. Internal reference and clock buffering simplify board-level design, while the wideband differential input structure accommodates single-ended-to-differential transformer or driver front ends. The combined architecture supports dual-channel synchronous sampling required for I/Q signal processing in quadrature demodulation paths.
Typical applications include wireless base-station receiver IF sampling, cable-modem downstream QAM demodulators, medical imaging ultrasound front-ends, radar digitizers, and portable instrumentation. The dual channel also suits MIMO radio designs and diversity receivers where matched-channel sampling is critical. In radar and ultrasound, the wideband differential input preserves harmonic content needed for matched-filter pulse compression.
When designing with the MAX12529, ensure the analog input drive network provides the correct common-mode voltage (typically 1.65V at mid-scale for 3.3V supply) and presents low source impedance across the Nyquist bandwidth. Decouple AVDD and DVDD rails separately near the package pins to prevent digital switching noise from coupling into the analog front end, and bond the exposed thermal pad to a continuous ground plane for thermal dissipation.
This page synthesizes distributor pricing, parametric comparison data, drop-in alternatives from the same Maxim family, and practical design notes not consolidated in the manufacturer datasheet, giving engineers a faster path from selection to prototype.
Bộ thay thế dễ dàng lắp đặt cho MAX12529ETK+ — 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 MAX12529ETK+ (cùng hình factor và footprint) — khác nhau ở Input Type, Manufacturer, Number of Channels.
MAX12528ETK+
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MAX12529ETK+TD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX12529ETK+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX12559ETK+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX12529ETK+ Tỷ lệ tối đa & tính chất điện
| Manufacturer | Maxim Integrated (Analog Devices) |
| Product Type | Dual Analog-to-Digital Converter (ADC) |
| Độ phân giải | 12 bit |
| Number of Channels | 2 (dual, simultaneous sampling) |
| Tỷ lệ lấy mẫu | 96 Msps (per channel) |
| Điện áp cung cấp | 3.3 V (single supply) |
| Input Type | Fully differential wideband track-and-hold |
| Architecture | Pipelined multi-stage with digital error correction |
| Hộp | 68-pin TQFN (ETK suffix) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead Free | Yes |
| Optimized For | Low power, small size, IF/baseband sampling |
Cấu hình chân MAX12529ETK+
| Chân 1 | AINA+ — Channel A differential positive analog input |
| Chân 2 | AINA- — Channel A differential negative analog input |
| Chân 3 | AVDD — Analog supply voltage (3.3V) |
| Chân 4 | AVSS — Analog ground |
| Chân 5 | REFIN — External reference input |
| Chân 6 | REFOUT — Internal reference output (bypass with cap) |
| Chân 7 | COMA — Channel A common-mode voltage |
| Chân 8 | AVDD — Analog supply voltage (3.3V) |
| Chân 9 | AINB+ — Channel B differential positive analog input |
| Chân 10 | AINB- — Channel B differential negative analog input |
| Chân 11 | AVSS — Analog ground |
| Chân 12 | COMB — Channel B common-mode voltage |
| Chân 13 | CLK+ — Differential clock positive input |
| Chân 14 | CLK- — Differential clock negative input |
| Chân 15 | CLKDUTY — Clock duty-cycle control |
| Chân 16 | DVDD — Digital supply voltage (3.3V) |
| Chân 17 | DVSS — Digital ground |
| Chân 18 | CSB — Active-low serial interface chip select |
| Chân 19 | SCLK — Serial interface clock |
| Chân 20 | DIN — Serial interface data input |
| Chân 21 | DOUT — Serial interface data output |
| Chân 22 | DRA0 — Channel A digital output bit 0 (LSB) |
| Chân 23 | DRA1 — Channel A digital output bit 1 |
| Chân 24 | DRA2 — Channel A digital output bit 2 |
| Chân 25 | DRA3 — Channel A digital output bit 3 |
| Chân 26 | DRA4 — Channel A digital output bit 4 |
| Chân 27 | DRA5 — Channel A digital output bit 5 |
| Chân 28 | DRA6 — Channel A digital output bit 6 |
| Chân 29 | DRA7 — Channel A digital output bit 7 |
| Chân 30 | DRA8 — Channel A digital output bit 8 |
| Chân 31 | DRA9 — Channel A digital output bit 9 |
| Chân 32 | DRA10 — Channel A digital output bit 10 |
| Chân 33 | DRA11 — Channel A digital output bit 11 (MSB) |
| Chân 34 | DVDD — Digital supply voltage (3.3V) |
| Chân 35 | DVSS — Digital ground |
| Chân 36 | ORA — Channel A out-of-range indicator |
| Chân 37 | ORB — Channel B out-of-range indicator |
| Chân 38 | DRB0 — Channel B digital output bit 0 (LSB) |
| Chân 39 | DRB1 — Channel B digital output bit 1 |
| Chân 40 | DRB2 — Channel B digital output bit 2 |
| Chân 41 | DRB3 — Channel B digital output bit 3 |
| Chân 42 | DRB4 — Channel B digital output bit 4 |
| Chân 43 | DRB5 — Channel B digital output bit 5 |
| Chân 44 | DRB6 — Channel B digital output bit 6 |
| Chân 45 | DRB7 — Channel B digital output bit 7 |
| Chân 46 | DRB8 — Channel B digital output bit 8 |
| Chân 47 | DRB9 — Channel B digital output bit 9 |
| Chân 48 | DRB10 — Channel B digital output bit 10 |
| Chân 49 | DRB11 — Channel B digital output bit 11 (MSB) |
| Chân 50 | DVDD — Digital supply voltage (3.3V) |
| Chân 51 | DVSS — Digital ground |
| Chân 52 | NC — Not connected (per datasheet) |
| Chân 53 | NC — Not connected (per datasheet) |
| Chân 54 | PD — Power-down mode control |
| Chân 55 | RESET — Active-low reset input |
| Chân 56 | AVDD — Analog supply voltage (3.3V) |
| Chân 57 | AVSS — Analog ground |
| Chân 58 | NC — Not connected (per datasheet) |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | NC — Not connected (per datasheet) |
| Chân 61 | NC — Not connected (per datasheet) |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | NC — Not connected (per datasheet) |
| Chân 64 | NC — Not connected (per datasheet) |
| Chân 65 | NC — Not connected (per datasheet) |
| Chân 66 | NC — Not connected (per datasheet) |
| Chân 67 | NC — Not connected (per datasheet) |
| Chân 68 | EP — Exposed thermal pad - bond to ground |
Ứng dụng tiêu biểu
MAX12529ETK+ phù hợp cho 6 Áp dụngs: Wireless Base-Station IF Sampling, Cable-Modem Downstream QAM Demodulation, Medical Ultrasound Imaging Front-End, Radar Pulse Digitizer, Portable Instrumentation and Test Equipment, MIMO Radio Diversity Receiver.
Wireless Base-Station IF Sampling
The MAX12529ETK+ is purpose-built for intermediate-frequency (IF) sampling in wireless base-station receivers, where dual-channel simultaneous sampling digitizes I/Q signal pairs from a quadrature demodulator. Its 96Msps per-channel rate comfortably captures IF signals up to ~70MHz with adequate second-Nyquist margin, while the 12-bit resolution delivers the dynamic range required for demodulating QAM, QPSK, and OFDM waveforms. The differential wideband T/H preserves amplitude and phase accuracy across the IF band, and the 3.3V single-supply operation simplifies power-tree design alongside RF transceiver ICs.
Được đề xuất
Cable-Modem Downstream QAM Demodulation
The MAX12529ETK+ fits cable-modem downstream demodulators where high-speed dual ADC sampling captures the full 6MHz QAM channel bandwidth plus adjacent spectrum for spectrum-analyzer displays. The 12-bit resolution yields sufficient SNR for 256-QAM constellations, while the dual channel allows simultaneous capture of downstream and a return-path monitor tap. Its 3.3V operation matches typical cable-modem tuner IC supply rails, simplifying board layout and reducing the total BOM cost.
Được đề xuất
Medical Ultrasound Imaging Front-End
In medical ultrasound, the MAX12529ETK+ digitizes the broadband RF return signals after the analog beamformer, with both channels simultaneously capturing in-phase and quadrature components of the demodulated echo. Its 96Msps rate covers transducer frequencies up to ~30MHz, and the 12-bit resolution combined with low-noise T/H inputs preserves the harmonic content required for tissue-harmonic-imaging modes. The exposed-pad TQFN package dissipates heat efficiently in the dense multi-channel arrays used in portable ultrasound carts.
Được đề xuất
Radar Pulse Digitizer
The MAX12529ETK+ serves as a matched-filter pulse-compression digitizer in pulsed-radar receiver chains, where dual-channel sampling captures both the radar return and a calibration reference path. Its 96Msps rate and 12-bit resolution provide the time-domain accuracy required for sub-meter range resolution at typical X-band IF frequencies, while the differential inputs reject common-mode noise from the high-power transmit pulses. The 68-pin TQFN's exposed pad bonds to a continuous ground plane, suppressing digital switching noise in radar-dense PCBs.
Được đề xuất
Portable Instrumentation and Test Equipment
The MAX12529ETK+ fits handheld oscilloscopes, spectrum analyzers, and arbitrary waveform digitizers where dual 96Msps channels capture repetitive waveforms for equivalent-time analysis. Its low-power 3.3V operation suits battery-powered field instruments, while the 12-bit resolution provides enough dynamic range for production-line pass/fail testing of mixed-signal modules. The exposed-pad TQFN package simplifies thermal management in sealed plastic enclosures where convective cooling is limited.
Được đề xuất
MIMO Radio Diversity Receiver
The MAX12529ETK+ suits MIMO radio diversity receivers where two matched ADC channels simultaneously sample the two antenna paths to enable maximal-ratio combining in the digital baseband. Its dual simultaneous sampling at 96Msps delivers aligned samples at both antennas, eliminating the timing skew that would otherwise degrade the diversity gain. The 12-bit resolution supports 64-QAM constellations in Wi-Fi 5/6 and 5G small-cell base stations, and the 3.3V single-supply operation integrates cleanly with the RF front-end and baseband SoC supply rails.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX12529ETK+ — 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 | MAX12528ETK+ | MAX12529ETK+TD | MAX12529ETK+D | MAX12559ETK+ |
|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 68-pin TQFN (ETK) | 68-pin TQFN (ETK) - same | 68-pin TQFN (ETK) - same | 68-pin TQFN (ETK) - same | 68-pin TQFN (ETK) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 14 bit |
| Sampling Rate | 96 Msps | 80 Msps | 96 Msps | 96 Msps | 80 Msps |
| Number of Channels | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Input Type | Differential wideband T/H | Differential wideband T/H | Differential wideband T/H | Differential wideband T/H | Differential wideband T/H |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Pinout Compatible | Yes (reference) | Yes | Yes | Yes | Yes (same TQFN-68) |
Bảo phân biệt quan trọng
- Highest sampling rate in MAX1252x dual-12-bit family (vsMAX12528ETK+)
- Lower resolution but higher sample rate vs MAX12559 (vsMAX12559ETK+)
- Maxim/Analog Devices integrated reference and clock buffer (vsDiscrete ADC + external reference designs)
Ghi chú thiết kế
Separate AVDD and DVDD supplies at the package pins using ferrite beads or pi-filter networks, with 0.1uF ceramic and 10uF tantalum bulk caps placed within 5mm of each supply pin. The MAX12529ETK+'s 3.3V supply is shared with downstream digital logic, but isolating analog and digital rails via ferrite beads prevents high-frequency digital switching noise from coupling into the sensitive T/H front-end, which would otherwise degrade SNR by 3-5 dB at full input frequency.
Bond the exposed thermal pad (EP) directly to a continuous ground plane with at least 8 thermal vias arranged in a 4x4 grid beneath the package. Differential analog input traces (AINA+/AINA-, AINB+/AINB-) should be routed as 100-ohm differential pairs with constant spacing, length-matched within 1mm between channels, and kept clear of digital output buses (DR0-DR11) to minimize crosstalk-induced harmonic spurs in the digitized spectrum.
Do not drive the differential inputs from a single-ended source without an AC-coupling transformer or balun - the MAX12529's fully differential T/H requires matched common-mode voltage at both inputs (typically 1.65V) to avoid saturating the front-end. Failing to set the correct common-mode is the most common cause of degraded THD+N performance in IF sampling applications. Use the COMA/COMB outputs to bias input driver op-amps directly.
Thông tin tuân thủ
RoHS and lead-free per Maxim product marking; other compliance status not stated in the verified web data.
