MAX108CHC-B50105 - 1.5Gsps 8-Bit ADC with T/H, PECL | Maxim
料号： MAX108CHC-B50105 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $285 | $285.00 |
| 10 | $262.5 | $2,625.00 |
| 100 | $235 | $23,500.00 |
| 500 | $210 | $105,000.00 |
| 1,000 | $192 | $192,000.00 |
MAX108CHC-B50105 概述
An 8-bit ADC (analog-to-digital converter) is a data-conversion integrated circuit that translates a continuous-time analog signal into an 8-bit digital code at a specified sample rate. High-speed 8-bit ADCs sit in the broader data-converter hierarchy (ADC > data converter > mixed-signal IC > semiconductor) and are typically used to digitize fast transient or RF signals where GHz-class analog bandwidth and multi-hundred-MHz sampling are required. The MAX108's flash architecture means conversion happens in a single clock cycle, making it one of the fastest ADC topologies available.
Key specifications include 1.5 Gsps minimum sample rate, 2.2 GHz full-power input bandwidth, PECL (positive emitter-coupled logic) compatible digital outputs for low-jitter interfacing with FPGAs or high-speed ASICs, and integrated track-and-hold that eliminates the need for an external high-bandwidth sampler. The B-grade -B50105 suffix denotes the commercial temperature grade and the B50105 characterization/test option.
The MAX108 uses an innovative differential flash architecture with on-chip calibration, providing low integral nonlinearity and aperture jitter. The integrated T/H holds the analog input stable during conversion, eliminating code-dependent aperture errors that plague many simpler flash designs. The internal PECL drivers deliver well-defined edges into 50 ohm loads, simplifying interface to high-speed FPGAs and demultiplexer ASICs.
Typical applications include digital oscilloscopes, radar signal processing, direct RF digitization in software-defined radio, broadband test and measurement instrumentation, and high-energy physics data acquisition. The 2.2 GHz analog bandwidth makes the part suitable for undersampling IF signals as well as direct baseband sampling.
When designing with the MAX108, use controlled-impedance differential signal traces for the analog inputs and matched-length PECL traces for the digital outputs to preserve the device's 1.5 Gsps performance. Decouple each supply pin with a separate 0.1 uF ceramic capacitor placed as close as possible to the BGA ball, and provide an external low-jitter PECL clock source meeting the device's aperture-jitter budget.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet, helping procurement and design engineers shorten evaluation cycles for this specialty ultra-high-speed ADC.
直接替换替代料： MAX108CHC-B50105 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MAX108CHC-B50105 （相同外形与封装尺寸） ——差异在于 Analog Input Bandwidth, Sample Rate, Mounting Type, Resolution, Number of Channels.
快速对比工具——选择替代料号进行并排对比：
MAX108CHC
✅ 直接替换📋 参考替代料（不在目录中）
MAX108CHC-B50105
✅ 直接替换✓ 有现货
$192 / 个
查看数据手册 →MAX108CHC-B50105 最大额定值与电气特性
| 分辨率 | 8 bits |
| Sample Rate | 1.5 Gsps (minimum) |
| Architecture | Flash with integrated track-and-hold |
| Analog Input Bandwidth | 2.2 GHz (full power) |
| Number of Channels | 1 (single-ended differential input) |
| Output Interface | PECL (positive emitter-coupled logic) |
| Process Technology | Maxim proprietary GST-2 bipolar |
| Package Type | 192-ball LBGA (chip-scale BGA) |
| Pin/Ball Count | 192 |
| Package Code | LBGA |
| Terminal Form | Ball |
| Temperature Grade | Commercial |
| Conversion Method | Flash |
| 安装类型 | Surface Mount |
MAX108CHC-B50105 lbga 引脚配置指南
MAX108CHC-B50105（lbga 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MAX108CHC-B50105.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX108CHC-B50105 适用于 6 应用s: Digital Oscilloscope Front-End, Direct RF Digitization / Software-Defined Radio, Radar and EW Signal Processing, Broadband Test and Measurement Instrumentation, High-Energy Physics Data Acquisition, Medical Imaging Digitizing Front-Ends.
Digital Oscilloscope Front-End
The MAX108CHC-B50105 fits digital oscilloscope front ends where its 1.5 Gsps sample rate and 2.2 GHz analog input bandwidth let digitizers capture GHz-bandwidth baseband waveforms with sub-nanosecond risetimes. Per the manufacturer datasheet, the integrated track-and-hold stage eliminates code-dependent aperture errors that distort fast edges in simpler flash designs, while PECL outputs deliver clean 50 ohm-terminated edges to downstream FPGAs. Compared with a discrete T/H + ADC chain, the single-die integration reduces board area and timing-skew calibration steps - both critical for 4-channel 1 GHz-class oscilloscope channels.
推荐
Direct RF Digitization / Software-Defined Radio
For direct RF digitization in software-defined radio receivers, the MAX108CHC-B50105's 2.2 GHz analog input bandwidth lets engineers sample IF/RF frequencies far above Nyquist with undersampling techniques. With 1.5 Gsps native rate and 8-bit resolution, the part captures the dynamic range required for IF digitization of L-band and S-band signals, while the PECL output interface feeds FPGA digital down-converters at low jitter. The integrated T/H holds amplitude flat across the sample window, reducing aperture-induced spurs that would otherwise limit receiver spurious-free dynamic range.
推荐
Radar and EW Signal Processing
The MAX108CHC-B50105 suits pulsed-radar and electronic-warfare digital-receiver designs where the 1.5 Gsps sample rate captures wideband intra-pulse modulation. Its 2.2 GHz analog bandwidth preserves pulse-risetime integrity, while the flash quantizer's single-cycle conversion gives deterministic latency for time-of-arrival measurement. PECL outputs interface cleanly with FPGA post-processors implementing matched filters and pulse-compression algorithms. AEC-Q100-grade variants are not available, so the part targets non-automotive defense and instrumentation platforms rather than vehicular radar.
推荐
Broadband Test and Measurement Instrumentation
In broadband test and measurement - signal analyzers, jitter analyzers, and protocol testers - the MAX108CHC-B50105 provides digitizing of repetitive wideband waveforms at multi-GHz analog bandwidth with 1.5 Gsps real-time sampling. The integrated track-and-hold stage keeps sample-to-sample amplitude variation low, which is essential for accurate time-interval and rise-time measurements. PECL output levels mate directly with high-speed FPGA capture buffers, avoiding extra level-translation stages and the timing skew they introduce into multi-channel T&M receivers.
推荐
High-Energy Physics Data Acquisition
High-energy physics experiments rely on fast digitizers for particle-detector readout, and the MAX108CHC-B50105's 1.5 Gsps / 8-bit / PECL combination matches the requirements of scintillator and Cherenkov detector digitizing. The 192-ball LBGA package is well suited to high-channel-density DAQ boards, and the T/H front-end preserves pulse-height fidelity on the few-nanosecond time scale. Per the manufacturer datasheet, the part's differential analog input rejects common-mode noise in electrically noisy accelerator environments.
推荐
Medical Imaging Digitizing Front-Ends
For medical imaging front-ends - ultrasound beamformer digitizing and CT detector readouts - the MAX108CHC-B50105 delivers 1.5 Gsps sampling suitable for 100+ MHz IF digitization of beamformed RF echoes. The 2.2 GHz analog input bandwidth keeps the harmonic content of wideband pulses intact, and the integrated track-and-hold minimizes aperture jitter that would otherwise smear time-of-flight resolution. The 8-bit dynamic range is appropriate for envelope-detected ultrasound chains, while the PECL outputs feed medical-imaging FPGAs at low deterministic latency.
推荐
推荐产品汇总
工程参考数据： MAX108CHC-B50105 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX108CHC | MAX108CHC-B50105 |
|---|---|---|---|
| Package | 192-ball LBGA | 192-ball LBGA (same) | 192-ball LBGA (same) |
| Brand | Maxim Integrated | Maxim Integrated (same) | Maxim Integrated (same) |
| Resolution | 8 bits | 8 bits | 8 bits |
| Sample Rate | 1.5 Gsps | 1.5 Gsps | 1.5 Gsps |
| Analog Input Bandwidth | 2.2 GHz | 2.2 GHz | 2.2 GHz |
| Architecture | Flash + T/H | Flash + T/H | Flash + T/H |
| Digital Output | PECL | PECL | PECL |
| Temperature Grade | Commercial | Commercial | Commercial |
关键差异点
- 1.5 Gsps sample rate in a single-die 8-bit ADC （对比 MAX1068 family)
- Integrated track-and-hold eliminates external T/H design （对比 Discrete T/H + flash ADC chain)
- PECL outputs for direct FPGA interface （对比 LVDS outputs)
设计说明
Use controlled-impedance differential traces (typically 100 ohms) for the analog inputs. Match trace lengths within a few mils to preserve differential balance at 2.2 GHz. Place 0.1 uF X7R ceramic decoupling capacitors on every supply ball, immediately adjacent and stitched through short vias to a solid ground/power plane pair.
PECL outputs require 50 ohm termination to (VCC - 2V) at the receiver end; improper termination causes ringing and code-dependent jitter. Keep PECL output traces short and matched. Provide a low-jitter external PECL clock source that meets the device's aperture-jitter budget to avoid SNR degradation at 1.5 Gsps.
Estimated: at full 1.5 Gsps operation the GST-2 bipolar die draws approximately 5 W; with the LBGA package the thermal-resistance-to-ambient for an 8-layer test board is in the 12-15 C/W range. Junction-to-ambient rise is estimated at 60-75 C, so ensure airflow or a heatsink/cold-finger in production enclosures.
Do not sample the analog input before the T/H has settled; allow the full acquisition time per clock cycle. Avoid using long cables from the analog signal source - the 2.2 GHz bandwidth makes the device extremely sensitive to source-impedance mismatch. Use attenuators and baluns rated for the input frequency range to maintain ENOB at the rated sample rate.
合规信息
RoHS/REACH/lead-free status not stated in the retrieved distributor data; verify directly with the manufacturer before designing into RoHS-bound product lines. This part is NOT AEC-Q100 qualified and is intended for instrumentation, defense, and test-and-measurement use rather than automotive.
