MAX109EHF+ - 8-Bit 2.2Gsps ADC with Track/Hold | Maxim Integrated
N.º de pieza: MAX109EHF+ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $145 | $145,00 |
| 10 | $138.5 | $1.385,00 |
| 100 | $128.2 | $12.820,00 |
| 500 | $118.75 | $59.375,00 |
| 1.000 | $109.3 | $109.300,00 |
MAX109EHF+ Descripción general
An 8-bit ADC (analog-to-digital converter) is a data-acquisition component that samples continuous analog signals and quantizes them into one of 2^8 = 256 discrete digital codes per conversion. Within the broader IC hierarchy, the MAX109EHF+ falls under data converters -> ADCs -> flash / high-speed ADC -> mixed-signal IC, and typically appears in the signal chain immediately after a wideband front-end amplifier or downconverter and before a digital FPGA or ASIC processor.
Key features include a differential analog input with 50-ohm on-chip termination, an internal bandgap reference for excellent gain and offset stability, and a 1:4 LVDS output demultiplexer that relaxes downstream FPGA capture clock rates by one-quarter. The integrated track-and-hold amplifier (THA) provides sub-picosecond aperture jitter, preserving dynamic range for high-frequency analog input bands. The LVDS interface supports both DDR (double data rate) and SDR clocking, easing timing closure in dense digital back-ends.
Architecturally, the MAX109EHF+ uses a high-speed flash core preceded by a track-and-hold input stage, which captures a 2.2 GHz instantaneous analog bandwidth and presents a settled sample to the comparators. The 1:4 output demultiplexing minimizes the per-channel output data rate to roughly 550 Mbps per LVDS pair, simplifying PCB routing and easing FPGA pin-count pressure in multi-channel systems.
Typical applications include digital oscilloscopes, radar and Lidar baseband digitizers, broadband communications test equipment, electronic countermeasures (ECM), and high-end medical imaging such as ultrasound front-ends. In each of these systems the converter's 2.2 Gsps sample rate preserves Nyquist margin for input bandwidths up to approximately 1 GHz with eight-bit resolution.
When designing with the MAX109EHF+, pay particular attention to analog input signal integrity: route the 50-ohm transmission line through a controlled-impedance layer, place decoupling networks within 1 mm of AVDD and AVSS balls, and isolate the LVDS outputs from the analog input with a GND guard ring. Thermal management is also critical because the SBGA package dissipates roughly 3.5 W at full sample rate and full-scale input, requiring thermal vias and forced airflow in production environments.
This page synthesizes distributor pricing, same-family drop-in alternatives within the SBGA-256 footprint, and practical design notes not found in the manufacturer datasheet, organized to help procurement engineers and hardware designers make a confident sourcing decision as of October 2026.
Alternativas directas para MAX109EHF+ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MAX109EHF+ (mismo factor de forma y huella) — difiere en Analog Input Bandwidth, Sample Rate, Mounting Type, Resolution, Architecture.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MAX109EHF-D
✅ Sustitución directa✓ En stock
$171 / unidad
Ver hoja de datos →MAX109EHF-TD
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX108CHC-D
✅ Sustitución directa✓ En stock
$128.5 / unidad
Ver hoja de datos →MAX108CHC-B50105
✅ Sustitución directa✓ En stock
$192 / unidad
Ver hoja de datos →MAX109EHF+ Valores máximos y características eléctricas
| Resolución | 8 bits |
| Sample Rate | 2.2 Gsps (Gigasamples per second) |
| Number of Input Channels | 1 (single channel) |
| Analog Input Bandwidth | 1.5 GHz (full-scale input) |
| SFDR (Spurious-Free Dynamic Range) | 57 dB (typical, low input frequency) |
| Analog Input Configuration | Differential, 50 ohm on-chip termination |
| Output Interface | 1:4 demultiplexed LVDS, DDR and SDR modes |
| Output Data Rate per LVDS Pair | 550 Mbps (1:4 demux) |
| Internal Reference | Internal bandgap, internal reference |
| Aperture Jitter | < 1 ps (track-and-hold amplifier) |
| Package Type | SBGA-256 (Super-BGA, 256 balls) |
| Package Dimensions | 27 x 27 mm, 1.27 mm ball pitch |
| Rango de temperatura de funcionamiento | -40 C to +85 C (Industrial) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Guía de configuración de pines de MAX109EHF+ 27 x 27 mm, 1.27 mm ball pitch
Configuración de pines para MAX109EHF+ (encapsulado 27 x 27 mm, 1.27 mm ball pitch). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para MAX109EHF+.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MAX109EHF+ es adecuado para 6 aplicacións: Digital Storage Oscilloscope (DSO) Front-End, Radar and Lidar Baseband Digitizer, Broadband Communications Test Equipment, Electronic Countermeasures (ECM) and ELINT Receivers, Medical Ultrasound Receiver Front-End, High-Energy Physics and Time-of-Flight Detectors.
Digital Storage Oscilloscope (DSO) Front-End
The MAX109EHF+ digitizes the post-attenuation and post-amplifier analog signal at the input of a digital storage oscilloscope. Its 2.2 Gsps sample rate and approximately 1.5 GHz analog input bandwidth preserve real-time single-shot capture of edge speeds under 500 ps, while the integrated track-and-hold amplifier maintains sub-picosecond aperture jitter that keeps SNR above 43 dB at Nyquist. The 1:4 demultiplexed LVDS outputs deliver per-pair data rates of about 550 Mbps, which map cleanly to a downstream FPGA DDR capture memory block. Placed after a 50-ohm-terminated front-end amplifier, it achieves sub-nanosecond trigger re-arm times suitable for 4 GHz-class oscilloscopes. The SBGA-256 footprint enables direct stacking under the FPGA BGA, keeping analog-to-digital routing short and controlled-impedance. Use it when a single-channel 8-bit ADC at multi-gigasample rates is required for compact DSO channels.
Recomendado
Radar and Lidar Baseband Digitizer
In pulsed radar and coherent Lidar receivers, the MAX109EHF+ samples the I/Q baseband or wideband IF chain at 2.2 Gsps, providing over 1 GHz of usable analog input bandwidth. The 8-bit resolution accommodates the dynamic range of 16 to 24 dB SNR typical of detection-limited receivers, while the track-and-hold preserves phase coherence needed for SAR or digital beamforming. LVDS 1:4 demultiplexing reduces FPGA pin count by a factor of four, easing channel-count scaling for phased-array antennas. Triggered or timed captures synchronize to a GPS-disciplined reference, and the wide operating temperature range of -40 to +85 C supports field-deployed radar and autonomous-vehicle Lidar sensors. In Lidar applications this converter enables 200 m range with centimeter-class resolution at pulse repetition rates above 1 MHz.
Recomendado
Broadband Communications Test Equipment
The MAX109EHF+ is a core digitizer in vector signal analyzers, spectrum analyzers, and arbitrary waveform digitizers that capture RF signals up to 1 GHz with 8-bit fidelity. The 2.2 Gsps sample rate provides Nyquist margin for capturing wideband modulated waveforms such as 802.11ax or 5G NR FR1 sub-6 GHz carrier-spaced test signals. The on-chip 50-ohm termination matches the front-end LNA output without external baluns, and the differential analog input rejects common-mode noise from switching power supplies inside the instrument chassis. The internal bandgap reference stabilizes gain over temperature, eliminating periodic calibration routines in production test gear. The 1:4 LVDS outputs feed FPGAs that perform FFT, demodulation, or EVM measurement in real time, while the SBGA-256 footprint supports high-density multi-channel digitizer boards.
Recomendado
Electronic Countermeasures (ECM) and ELINT Receivers
Electronic countermeasures and electronic intelligence receivers require wide instantaneous bandwidth and high probability of intercept. The MAX109EHF+ samples signals from 0.5 to 1500 MHz at 2.2 Gsps, capturing short-burst radar emitters in a single acquisition window. The track-and-hold amplifier provides sub-picosecond aperture jitter which preserves frequency-domain information for emitter classification. Demultiplexed LVDS outputs route data to an FPGA performing real-time pulse descriptor word extraction. The industrial -40 to +85 C temperature range supports airborne pod-mounted and shipboard deployments. The SBGA-256 package enables dense board layouts, fitting 4 to 8 channels of wideband digitizer on a single 6U VPX card for ELINT systems.
Recomendado
Medical Ultrasound Receiver Front-End
In medical ultrasound imaging systems, the MAX109EHF+ digitizes the post-TGC amplified RF echo signal at multi-gigasample rates, enabling high-resolution beamforming and harmonic imaging. The 2.2 Gsps rate samples 40 MHz probes with 5x oversampling, supporting second-harmonic imaging modes from 2 to 10 MHz fundamentals. The 8-bit resolution and 43 dB SNR preserve soft-tissue contrast for diagnostic-grade B-mode imaging. The 1:4 demultiplexed LVDS outputs interface directly to ultrasound beamforming ASICs or FPGAs that compute delay-and-sum across 64 to 256 channels. Differential input with 50-ohm termination matches the active probe output network. Low aperture jitter preserves axial resolution below 200 microns, critical for vascular and small-parts imaging at depths exceeding 15 cm.
Recomendado
High-Energy Physics and Time-of-Flight Detectors
Particle and time-of-flight detector front-ends use the MAX109EHF+ to digitize the leading-edge timing discriminator output at 2.2 Gsps, achieving sub-100 ps timing resolution for time-of-flight mass spectrometry. The track-and-hold amplifier yields sub-picosecond aperture jitter which is essential for time-of-flight particle identification. The 8-bit dynamic range supports single-photon counting discriminators after amplification, and the 1.5 GHz input bandwidth allows 10 Gsps effective sampling when two MAX109EHF+ devices are interleaved with controlled phase offset. The SBGA-256 package enables compact detector readout boards for collider experiments. Industrial temperature operation makes it deployable in beamline instrumentation environments with variable thermal loads.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MAX109EHF+ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MAX109EHF-D | MAX109EHF-TD | MAX108CHC-D | MAX108CHC-B50105 |
|---|---|---|---|---|---|
| Brand | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) |
| Package | SBGA-256 (27x27mm) | SBGA-256 (27x27mm) - same | SBGA-256 (27x27mm) - same | SBGA-256 (27x27mm) - same | SBGA-256 (27x27mm) - same |
| Resolution | 8 bits | 8 bits | 8 bits | 8 bits | 8 bits |
| Sample Rate | 2.2 Gsps | 2.2 Gsps | 2.2 Gsps | 1.5 Gsps (-32%) | 1.5 Gsps (-32%) |
| Output Interface | 1:4 LVDS demux | 1:4 LVDS demux | 1:4 LVDS demux | 1:4 LVDS demux | 1:4 LVDS demux |
| Operating Temperature Range | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C | -40 to +85 C |
| RoHS Status | Compliant (Pb-free +) | Check datasheet suffix | Check datasheet suffix | Check datasheet suffix | Check datasheet suffix |
Diferenciadores clave
- Highest sample rate within the same SBGA-256 footprint (frente a MAX108CHC-D)
- True same-die drop-in second source within Maxim family (frente a MAX109EHF-D)
- Industrial temperature range versus typical commercial grades (frente a Commercial 8-bit 2 Gsps ADCs)
Notas de diseño
Route the analog input pair as a 50-ohm differential microstrip or stripline on the top layer directly under the SBGA-256 ball array, keeping trace length under 5 mm to preserve 1.5 GHz bandwidth. Place the LVDS output traces on inner stripline layers with reference planes to AVSS, and surround all analog inputs with a continuous GND-guard ring tied to AVSS through multiple vias. Decoupling: use 0.1 uF X7R plus 10 uF tantalum at every AVDD ball, and 1 nF plus 0.1 uF at every DVDD ball, all within 1 mm of the package. Estimated: a fully populated MAX109EHF+ board dissipates 3 to 4 W and requires 4 thermal vias under the die flag pad for convection-cooled 85 C operation.
Do not route the clock signal across analog input traces; the MAX109EHF+ has sub-picosecond aperture jitter and is highly sensitive to clock-to-input crosstalk. Drive the CLK input differentially from a low-jitter source (such as an LVPECL oscillator) and terminate near the ball. Avoid shared power planes between AVDD and DVDD - use separate regulator rails joined by a ferrite bead to prevent digital switching noise from coupling into the analog sample-and-hold. Estimated: a single shared power plane can degrade SNR by 5 to 7 dB at 1 GHz input.
Provide thermal vias on a 0.5 mm grid under the SBGA-256 die-pad center ball cluster to keep junction temperature below 125 C. Estimate: at 25 C ambient with still air and a 4-layer FR-4 board with 2 oz copper, the SBGA-256 thermal resistance theta_JA is roughly 8 to 12 C/W; for a 3.5 W dissipation this yields a 30 to 40 C junction rise. Forced airflow at 200 LFM reduces theta_JA by approximately 50 percent. Mounting the SBGA-256 with a thermal pad or solder preform to a metal heat spreader is recommended for instrumentation chassis above 50 C internal ambient.
Información de cumplimiento
Pb-free '+' suffix indicates lead-free finish per manufacturer marking convention. Industrial -40 to +85 C, not AEC-Q100 qualified. Conflict-mineral compliance per Maxim/Analog Devices corporate policy.
