MAX108CHC-B50105 - 1.5Gsps 8-Bit ADC with T/H, PECL | Maxim
MPN: MAX108CHC-B50105 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 Overview
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.
Drop-in alternatives for MAX108CHC-B50105 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MAX108CHC-B50105 (same form factor and footprint) — differing in Analog Input Bandwidth, Sample Rate, Mounting Type, Resolution, Number of Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MAX108CHC
✅ Drop-In📋 Reference alternative (not in catalog)
MAX108CHC-B50105
✅ Drop-In✓ In Stock
$192 / Unit
View Datasheet →MAX108CHC-B50105 Maximum Ratings & Electrical Characteristics
| Resolution | 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 |
| Mounting Type | Surface Mount |
MAX108CHC-B50105 lbga Pin Configuration Guide
Pin configuration for MAX108CHC-B50105 (lbga package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for MAX108CHC-B50105.
Refer to the datasheet for full pin configuration.
Typical Applications
MAX108CHC-B50105 is suitable for 6 applications: 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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
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.
Recommended
Recommended Products Summary
Engineering reference data for MAX108CHC-B50105 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 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 |
Key Differentiators
- 1.5 Gsps sample rate in a single-die 8-bit ADC (vs MAX1068 family)
- Integrated track-and-hold eliminates external T/H design (vs Discrete T/H + flash ADC chain)
- PECL outputs for direct FPGA interface (vs LVDS outputs)
Design Notes
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.
Compliance Information
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.
