MAX108CHC-D - 1.5Gsps 8-Bit Ultra-High-Speed ADC ESBGA-192 | Maxim
MPN: MAX108CHC-D ✓ Hoạt độngMAX108CHC-D Tóm tắt
An ADC (analog-to-digital converter) is a semiconductor device that samples a continuous-time analog signal and quantizes each sample into a finite-resolution binary code, forming the critical bridge between the analog RF/IF front end and the digital signal processing back end. Within the converter family tree, the MAX108 belongs to flash ADC architecture -> high-speed ADC -> data converter -> signal chain IC. Flash ADCs use paralleled comparators to deliver single-cycle conversion, achieving the highest sampling rates available in monolithic silicon.
Key features include ±0.25 LSB INL and DNL linearity, 7.5 effective bits at fIN = 750 MHz (Nyquist frequency), 50-ohm differential analog inputs, a PECL-compatible digital output interface, and an on-chip track-and-hold amplifier rated to 2.2 GHz full-power bandwidth. The device is fabricated on Maxim's proprietary GST-2 advanced bipolar process, allowing the track-and-hold and quantizer to coexist on a single monolithic die at multi-GHz analog speeds.
The architecture pairs an innovative 2.2 GHz input T/H with an internally-latched flash quantizer core, which minimizes aperture uncertainty and eliminates the need for an external high-bandwidth sample-and-hold. This integrated approach simplifies board design, reduces component count, and shortens critical analog paths on the PCB—key for capturing repetitive single-shot events at sub-nanosecond timing accuracy.
Typical applications include digital oscilloscopes, wideband test and measurement instrumentation, radar and EW (electronic warfare) IF digitizers, high-end spectrum analyzer capture front-ends, satellite communication receivers, and medical imaging systems such as ultrasound beamformers that require high analog bandwidth with moderate resolution.
When designing with this device, note that the 192-ball ESBGA requires controlled-impedance PCB stackup, laser-via escape routing, and a solid ground/power plane beneath the die to deliver the rated 1.5 Gsps performance. Decoupling must include a ferrite bead plus 0.1uF/10uF/47uF capacitance placed within 5 mm of each supply pin to suppress switching noise from the PECL output drivers.
This page synthesizes distributor pricing, drop-in alternatives, pin-out guidance, and practical PCB layout notes not found aggregated in the standalone datasheet, helping engineers shorten evaluation cycles for high-speed ADC prototyping.
Bộ thay thế dễ dàng lắp đặt cho MAX108CHC-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 MAX108CHC-D (cùng hình factor và footprint) — khác nhau ở Analog Input Bandwidth, Sample Rate, Mounting Type, Resolution, Operating Temperature Range.
MAX104CHC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX106CHC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX108CHC-D Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 8 bit |
| Sample Rate | 1500 MSPS (1.5 Gsps) |
| Analog Input Bandwidth | 2.2 GHz (full-power) |
| Effective Number of Bits (ENOB) | 7.5 bit at fIN = 750 MHz |
| Differential Nonlinearity (DNL) | +/-0.25 LSB |
| Integral Nonlinearity (INL) | +/-0.25 LSB |
| Analog Input Type | 50 ohm differential |
| Digital Output Interface | PECL-compatible |
| Điện áp cung cấp | +/-5 V |
| Khoảng nhiệt độ hoạt động | 0C to +70C (commercial) |
| Hộp | ESBGA-192 (25 mm x 25 mm) |
| Architecture | Flash ADC with on-chip T/H |
| Process Technology | Maxim GST-2 advanced bipolar |
| Kiểu lắp đặt | Surface Mount |
| ADC Type | Flash |
| Trạng thái RoHS | Refer to manufacturer datasheet |
Hướng dẫn cấu hình chân MAX108CHC-D esbga-192 (25 mm x 25 mm)
Cấu hình chân cho MAX108CHC-D (esbga-192 (25 mm x 25 mm) gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho MAX108CHC-D.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MAX108CHC-D phù hợp cho 7 Áp dụngs: Digital Storage Oscilloscope Front-End, Wideband Test & Measurement Instrumentation, Radar and Electronic Warfare IF Digitization, Satellite Communication Receiver IF Section, Spectrum Analyzer Capture Pre-Digitizer, Medical Ultrasound Beamformer Receiver, High-Speed Data Acquisition Front-End.
Digital Storage Oscilloscope Front-End
The MAX108CHC-D's 1.5 Gsps sample rate and 2.2 GHz analog bandwidth make it a drop-in match for the analog front-end of 1 GHz-class digital storage oscilloscopes (DSOs). Per the Maxim datasheet, the integrated track-and-hold amplifier and PECL outputs directly feed an FPGA capture buffer, enabling sub-nanosecond timing resolution on single-shot repetitive events. Compared to external T/H + ADC chains, the single-die integration reduces component count and shortens sensitive analog paths, critical at multi-GHz rates. The 7.5 effective bits at 750 MHz input preserve ENOB across the oscilloscope's full bandwidth for accurate voltage measurement and FFT analysis.
Được đề xuất
Wideband Test & Measurement Instrumentation
The MAX108CHC-D serves as the capture ADC in wideband test and measurement instruments such as signal analyzers, BERTs, and time-interval counters. Per the Maxim datasheet, the 8-bit resolution combined with 1.5 Gsps sample rate supports GHz-bandwidth signal capture for compliance testing of high-speed serial links, radar pulses, and modulated RF signals. The 50-ohm differential analog inputs simplify interfacing to lab-grade amplifiers and baluns, while the PECL outputs cleanly drive FPGA-based DSP blocks. The 25 mm x 25 mm ESBGA-192 package is well suited to bench-instrument chassis where PCB real estate is constrained.
Được đề xuất
Radar and Electronic Warfare IF Digitization
Defense radar and electronic warfare systems require the MAX108CHC-D's combination of 1.5 Gsps sample rate and 2.2 GHz analog bandwidth to directly digitize IF stages without analog down-conversion. Per the Maxim datasheet, this preserves phase and amplitude fidelity of pulse-compressed radar returns and EW intercepts, enabling digital beamforming and pulse de-interleaving downstream. The 7.5 effective bits at 750 MHz Nyquist handle the dynamic range of typical LNA-fed signals, while the PECL interface ensures minimum jitter during high-speed capture. Commercial-grade temperature (0 to +70C) is acceptable for ground-based test racks and laboratory EW simulators.
Được đề xuất
Satellite Communication Receiver IF Section
The MAX108CHC-D digitizes the IF stages of satellite communication receivers, where multi-GHz analog bandwidth and 1.5 Gsps sample rate capture wideband transponders without intermediate analog stages. Per the Maxim datasheet, the 50-ohm differential input pair interfaces directly to AGC amplifiers and image-reject filters, while the PECL outputs feed a Virtex-class FPGA for demodulation, decoding, and synchronization. The integrated 2.2 GHz track-and-hold minimizes aperture jitter, preserving symbol timing for QPSK/QAM modulation. Ground-station designs benefit from the commercial temperature range and standard +/-5 V supplies.
Được đề xuất
Spectrum Analyzer Capture Pre-Digitizer
In wideband spectrum analyzer capture boards, the MAX108CHC-D acts as a pre-digitizer that captures span frequencies up to 750 MHz before down-conversion or FFT processing. Per the Maxim datasheet, the 1.5 Gsps sample rate supports high-resolution FFT bins over real-time bandwidths that earlier designs required multiple ADCs to achieve. Differential inputs reject common-mode noise in dense analyzer chassis, while the ESBGA-192 package enables compact multi-board stack ups. The 7.5 effective bits at Nyquist provide sufficient dynamic range for weak-signal detection and adjacent-channel selectivity measurement.
Được đề xuất
Medical Ultrasound Beamformer Receiver
The MAX108CHC-D can serve in medical ultrasound beamformer front-ends that require capturing multi-MHz transducer return signals with high timing fidelity. Per the Maxim datasheet, the 1.5 Gsps sample rate and 2.2 GHz analog input bandwidth support beamformed-channel digital conversion chains in research-grade ultrasound systems, where every channel needs simultaneous high-speed capture. The integrated 2.2 GHz track-and-hold preserves timing relationships across elements, improving beam-steering resolution. The 8-bit resolution is adequate for envelope detection and digital TGC (time-gain compensation) stages in beamformer signal paths.
Được đề xuất
High-Speed Data Acquisition Front-End
In multi-channel high-speed data acquisition systems, the MAX108CHC-D captures transient waveforms from sensors, photodiodes, and particle detectors where single-shot events demand multi-GHz bandwidth. Per the Maxim datasheet, the device's PECL-compatible outputs directly drive deep-memory FPGA buffers, supporting long pre-trigger capture windows. The 25 mm x 25 mm ESBGA-192 footprint occupies minimal board space in densely packed ATE chassis and physics experiments. Multiple MAX108CHC-D chips can be synchronized for time-interleaved sampling at aggregate rates well above 1.5 Gsps.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX108CHC-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 | MAX104CHC | MAX106CHC |
|---|---|---|---|
| Package | ESBGA-192 (25 mm x 25 mm) | ESBGA-192 - same | ESBGA-192 - same |
| Brand | Maxim Integrated (Analog Devices) | Maxim Integrated | Maxim Integrated |
| Sample Rate | 1.5 Gsps | 1.0 Gsps | 600 Msps |
| Resolution | 8 bit | 8 bit | 8 bit |
| Output Interface | PECL-compatible | PECL-compatible | PECL-compatible |
| Supply Voltage | +/-5 V | +/-5 V | +/-5 V |
| Operating Temperature Range | 0C to +70C (commercial) | 0C to +70C | 0C to +70C |
Bảo phân biệt quan trọng
- Highest sample rate in the MAX10x ADC family (vsMAX104CHC)
- Highest sample rate among pin-compatible family members (vsMAX106CHC)
- Single-die integration of 2.2 GHz T/H + flash quantizer (vsDiscreet T/H + ADC solutions)
Ghi chú thiết kế
The MAX108CHC-D in its 25 mm x 25 mm ESBGA-192 package requires a 4-6 layer PCB stackup with continuous solid ground and power planes beneath the die. Per the Maxim datasheet, the controlled-impedance stackup must target 50-ohm differential routing for the analog inputs (using 100-ohm differential pairs) and 100-ohm differential PECL traces for the digital outputs. Stitched ground vias in a 1 mm pitch grid underneath the BGA field suppress return-path inductance and reduce EMI at the 1.5 Gsps clock edge.
The MAX108CHC-D requires multiple supply rails at +/-5 V plus a clean PECL termination supply. Estimated: total supply current on the order of 1-1.5 A combined at 1.5 Gsps operation; use a ferrite bead plus a 47uF bulk capacitor, a 10uF tantalum, and a 0.1uF ceramic placed within 5 mm of each supply pin to suppress switching noise from the PECL output drivers. Separate analog and digital ground planes joined at a single point beneath the IC to prevent ground-loop noise from coupling into the analog input.
A common pitfall is neglecting the input common-mode voltage of the MAX108CHC-D; per the Maxim datasheet, the differential analog inputs must be AC-coupled or DC-biased within the specified input common-mode range, and any DC offset on the input pair degrades linearity at high input frequencies. Designers should also resist routing the 1.5 GHz clock traces near the analog input traces—the on-chip T/H aperture is only a few picoseconds wide, and any clock feed-through to the analog inputs directly harms ENOB.
At 1.5 Gsps continuous operation, the MAX108CHC-D consumes significant power on its +/-5 V supplies, leading to a junction temperature rise that must be controlled. Estimated: at typical 1.5 Gsps power consumption, a 4-6 layer PCB with stitched ground vias and 25 mm x 25 mm BGA thermal land pattern keeps junction rise within the commercial 0C to +70C range. For elevated ambient temperatures, consider active airflow or a heat-spreader PCB lid over the BGA package.
Thông tin tuân thủ
RoHS and lead-free status not stated in the verified web data; consult the manufacturer's datasheet for the latest compliance certifications.
