MAX19542EGK+D - 12-Bit 170Msps ADC, CMOS Outputs, 68-QFN
MPN: MAX19542EGK+D ✓ Hoạt độngMAX19542EGK+D Tóm tắt
What is a pipelined ADC? A pipelined analog-to-digital converter is a multi-stage architecture where each stage samples, holds, quantises coarsely, and drives a residue into the next stage. Pipelined ADCs dominate the 10-bit-to-16-bit, 50 Msps-to-500 Msps performance envelope because they balance conversion speed, power dissipation, and dynamic range. As a member of the data-converter IC family, the MAX19542 sits within the broader signal-chain hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor IC, where it serves as the boundary between the analog transducer world and the digital signal processor or FPGA.
Key features include 64.3 dB SNR at full 170 Msps, 73 dBc SFDR, ±0.7 LSB integral nonlinearity (INL), ±0.25 LSB typical differential nonlinearity (DNL), 907 mW power dissipation at 170 Msps, and an on-chip selectable divide-by-2 clock divider. The wide 250 MHz analog input bandwidth enables undersampling architectures, while the CMOS-compatible parallel interface simplifies connection to ASICs and FPGAs. Industrial-grade -40C to +85C operating temperature range supports outdoor and harsh-environment deployment.
Designers choose the MAX19542EGK+D when digitising IF signals above 100 MHz where 10-bit to 12-bit dynamic range is sufficient, when LVDS is unnecessary (CMOS outputs reduce FPGA pin count), or when migrating legacy designs that pin-out to the MAX19541 (125 Msps) or MAX19542 (170 Msps) pin-compatible family. Power sequencing, low-jitter clock distribution, and 50-ohm input termination are the primary design considerations.
Bộ thay thế dễ dàng lắp đặt cho MAX19542EGK+D — 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 MAX19542EGK+D (cùng hình factor và footprint) — khác nhau ở DNL, INL, Input Type, Input Voltage Range, Package.
MAX19542EGK+TD
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MAX19541EGK+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1214EGK+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1213EGK+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1122EGK+D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1122EGK+TD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX19542EGK+D Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bit |
| Tỷ lệ lấy mẫu | 170 Msps |
| Architecture | Pipelined |
| Number of Channels | 1 |
| Input Type | Differential, single-ended |
| Kiểu đầu ra | CMOS, Parallel |
| Phạm vi điện áp đầu vào | 0 to 1.41 V |
| SNR | 64.3 dB at fIN, 170 Msps |
| SFDR | 73 dBc at fIN, 170 Msps |
| INL | ±0.7 LSB |
| DNL | ±0.25 LSB (typical) |
| Power Dissipation | 907 mW at 170 Msps |
| Hộp | 68-pin QFN EP (10x10 mm) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Sample Rate | 170000 kSamples/sec |
| Terminal Form | No lead (QFN) |
| Package Code | HVQCCN |
Cấu hình chân MAX19542EGK+D
| Chân 1 | CLK — Clock input |
| Chân 2 | CLK+ — Differential clock positive input |
| Chân 3 | CLK- — Differential clock negative input |
| Chân 4 | REF_IN — Reference input |
| Chân 5 | REF_OUT — Reference output |
| Chân 6 | AVDD — Analog supply |
| Chân 7 | AGND — Analog ground |
| Chân 8 | IN+ — Analog input positive |
| Chân 9 | IN- — Analog input negative |
| Chân 10 | AGND — Analog ground |
| Chân 11 | AVDD — Analog supply |
| Chân 12 | AVDD — Analog supply |
| Chân 13 | AGND — Analog ground |
| Chân 14 | AVDD — Analog supply |
| Chân 15 | AGND — Analog ground |
| Chân 16 | AVDD — Analog supply |
| Chân 17 | AGND — Analog ground |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | DVDD — Digital supply |
| Chân 20 | DGND — Digital ground |
| Chân 21 | D0 — Digital output bit 0 (LSB) |
| Chân 22 | D1 — Digital output bit 1 |
| Chân 23 | D2 — Digital output bit 2 |
| Chân 24 | D3 — Digital output bit 3 |
| Chân 25 | D4 — Digital output bit 4 |
| Chân 26 | D5 — Digital output bit 5 |
| Chân 27 | D6 — Digital output bit 6 |
| Chân 28 | D7 — Digital output bit 7 |
| Chân 29 | D8 — Digital output bit 8 |
| Chân 30 | D9 — Digital output bit 9 |
| Chân 31 | D10 — Digital output bit 10 |
| Chân 32 | D11 — Digital output bit 11 (MSB) |
| Chân 33 | DGND — Digital ground |
| Chân 34 | DVDD — Digital supply |
| Chân 35 | OTR — Out-of-range flag |
| Chân 36 | DRDY — Data ready clock |
| Chân 37 | DGND — Digital ground |
| Chân 38 | DVDD — Digital supply |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | GND — Ground |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | GND — Ground |
| Chân 46 | AVDD — Analog supply |
| Chân 47 | AGND — Analog ground |
| Chân 48 | REF — Reference voltage bypass |
| Chân 49 | REF — Reference voltage bypass |
| Chân 50 | NC — Not connected (per datasheet) |
| Chân 51 | AVDD — Analog supply |
| Chân 52 | AGND — Analog ground |
| Chân 53 | NC — Not connected (per datasheet) |
| Chân 54 | NC — Not connected (per datasheet) |
| Chân 55 | NC — Not connected (per datasheet) |
| Chân 56 | NC — Not connected (per datasheet) |
| Chân 57 | NC — Not connected (per datasheet) |
| Chân 58 | NC — Not connected (per datasheet) |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | GND — Ground |
| 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 | GND — Ground |
Ứng dụng tiêu biểu
MAX19542EGK+D phù hợp cho 6 Áp dụngs: Wideband Communications Receiver IF Digitisation, Radar and Lidar IF Sampling, Medical Imaging Front End (Ultrasound Beamforming), Test and Measurement Instrumentation (Digital Oscilloscope Channel), Cable Equipment Headend (QAM Modulator / Demodulator), Industrial Data Acquisition Systems.
Wideband Communications Receiver IF Digitisation
The MAX19542EGK+D is well matched to digitising intermediate-frequency (IF) signals in software-defined radio and cellular base-station receivers because its 12-bit resolution, 170 Msps sampling rate, and 73 dBc SFDR cleanly resolve 50 MHz to 100 MHz IF carriers without aliasing. The 64.3 dB SNR floor keeps bit error-rate low for QAM and OFDM demodulation downstream. The CMOS parallel interface drops directly into an FPGA or ASIC capture buffer without serializer-deserializer complexity, and the 907 mW dissipation is acceptable in 1U rack-mount base-station chassis where airflow is plentiful.
Được đề xuất
Radar and Lidar IF Sampling
Phased-array radar and lidar front ends use the MAX19542EGK+D to undersample IF signals in the 100 MHz to 200 MHz band, exploiting its wide analog input bandwidth to fold spectra into the Nyquist zone. With 73 dBc SFDR, the converter preserves the dynamic range needed for detecting small returns against clutter, while 12-bit resolution gives 4096 quantisation levels across the radar receiver's dynamic range. The 68-QFN exposed-pad package supports the thermal load of continuous 170 Msps operation in outdoor radar enclosures, and the industrial -40C to +85C temperature rating tolerates unconditioned deployments.
Được đề xuất
Medical Imaging Front End (Ultrasound Beamforming)
The MAX19542EGK+D is a strong fit for ultrasound beamformer digitiser channels where each transducer element requires its own high-speed ADC. At 170 Msps, the converter oversamples the 1 MHz to 15 MHz ultrasound band by an order of magnitude, allowing digital decimation filters to push SNR well above the 64.3 dB raw figure. CMOS parallel outputs let 32 or 64 beamformer channels fan in to a single FPGA without serializer-deserializer overhead. Low channel-to-channel latency variation is critical for beam steering accuracy, and the deterministic ADC pipeline delay of the MAX19542EGK+D supports that requirement.
Được đề xuất
Test and Measurement Instrumentation (Digital Oscilloscope Channel)
Bench-top and modular digitiser instruments benefit from the MAX19542EGK+D's 170 Msps sampling rate combined with 12-bit vertical resolution, which delivers a measurement bandwidth sufficient for 50 MHz-class signals and four times the vertical resolution of legacy 8-bit oscilloscope channels. The 73 dBc SFDR keeps harmonic distortion measurements accurate to better than -70 dBc, while 64.3 dB SNR enables noise-floor measurements down to -60 dBFS. The 68-QFN exposed-pad package fits inside compact modular-instrument chassis where board real estate is at a premium.
Được đề xuất
Cable Equipment Headend (QAM Modulator / Demodulator)
Cable-TV headend equipment uses the MAX19542EGK+D for QAM demodulator and modulator cards that digitise 44 MHz to 100 MHz IF stages from the upstream tuner block. The 12-bit resolution and 73 dBc SFDR preserve the modulation-error-ratio (MER) budget for 256-QAM and 1024-QAM downstream channels. CMOS parallel outputs integrate directly into FPGA channel-bonding logic. Power dissipation of 907 mW per channel is acceptable in headend racks with forced-air cooling, and the industrial -40C to +85C rating tolerates unconditioned headend cabinets.
Được đề xuất
Industrial Data Acquisition Systems
Multi-channel industrial data-acquisition (DAQ) cards for vibration analysis, acoustic emission monitoring, and high-speed control-loop feedback use the MAX19542EGK+D to digitise transducer outputs at rates far above the audio band. The 12-bit resolution at 170 Msps provides 4096 quantisation steps and 64.3 dB dynamic range, while the CMOS parallel interface minimises FPGA pin consumption when multiple channels are stacked. Industrial -40C to +85C temperature rating and RoHS-compliant QFN package suit deployment in factory automation cells and outdoor structural-health monitoring systems.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX19542EGK+D — 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 | MAX19542EGK+TD | MAX19541EGK+D | MAX1214EGK+D | MAX1213EGK+D | MAX1122EGK+D |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 68-QFN EP (10x10) | 68-QFN EP (10x10) - same | 68-QFN EP (10x10) - same | 68-QFN - same | 68-QFN - same | 68-QFN EP - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit |
| Output Type | CMOS Parallel | CMOS Parallel | CMOS Parallel | CMOS Parallel | CMOS Parallel | LVDS Parallel |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Highest sample rate in the 12-bit CMOS-output 68-QFN family (vsMAX19541EGK+D)
- Lower power dissipation at equivalent performance tier (vsMAX1214EGK+D)
- 12-bit resolution versus 10-bit (vsMAX1122EGK+D)
- CMOS outputs simplify FPGA interface without serializers (vsMAX1122EGK+TD)
Ghi chú thiết kế
Layout the 68-pin QFN exposed pad as a single contiguous copper pour spanning at least 1 square inch on the top layer, stitched with 0.3 mm thermal vias on a 1.0 mm grid to the inner ground plane. This keeps junction temperature rise below 30C at the 907 mW typical operating power and preserves SNR. Place the analog-input traces as a 50-ohm differential pair, length-matched within 1 mm, routed directly over a continuous ground plane to the IN+ and IN- pins with no vias in the signal path.
Estimated: At 170 Msps the MAX19542EGK+D draws roughly 907 mW from a nominal 1.8 V analog and 3.3 V digital rail. Provide separate LDO regulators for AVDD and DVDD with pi-filter (ferrite bead plus 10 uF + 0.1 uF) decoupling at each supply pin to prevent digital switching noise from coupling into the analog front end. Bypass each analog supply pin with a 10 uF X7R ceramic plus a 0.1 uF NP0 ceramic placed within 3 mm of the pin.
Drive the CLK input with a low-jitter (< 1 ps RMS) sine or LVPECL source through a 50-ohm termination network placed close to the IC. Clock jitter directly degrades SNR: every 1 ps of jitter adds approximately -60 dB of noise floor at 100 MHz input, so a 5 ps oscillator would limit SNR to 60 dB regardless of the converter's 64.3 dB rating. Use the on-chip divide-by-2 when a higher-frequency reference provides better phase noise.
Do not leave the REF_OUT pin un-bypassed - it requires a 10 uF plus 0.1 uF local bypass network to set the internal common-mode voltage. Failing to bypass the reference is a common cause of degraded INL and gain error. Similarly, avoid driving the analog input through a long trace that lacks 50-ohm termination; the resulting standing wave couples into the reference and produces harmonic distortion spurs in the FFT spectrum.
Thông tin tuân thủ
RoHS and lead-free per manufacturer product page. Reach compliance assumed from manufacturer datasheet standard declarations. No AEC-Q100 automotive grade is offered in this part family. Halogen-free status not stated in the verified source material.
