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Analog Devices Inc./Maxim Integrated MAX1434ECQ+D
- Part No.:
- MAX1434ECQ+D
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 100-TQFP Exposed Pad
- Datasheet:
-
MAX1434ECQ+D.pdf
- Description:
- IC ADC 10BIT PIPELINED 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,378
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Product details
Overview
MAX1434ECQ+D from Maxim Integrated is an octal, 10-bit, 50Msps analog-to-digital converter with fully differential inputs, pipelined architecture, and serial LVDS/SLVS outputs. It operates from a 1.8V analog supply, delivers 61dB SNR at 5.3MHz input, consumes 96mW per channel, and is housed in a 100-pin TQFP-EP package for ultrasound imaging front-ends.
For engineers reviewing the MAX1434ECQ+D datasheet, MAX1434ECQ+D pinout, MAX1434ECQ+D application, or MAX1434ECQ+D equivalent, this page provides verified technical context, real-world timing and noise performance data, validated pin functions, and confirmed alternatives for multichannel high-speed digitization systems requiring low power and high channel isolation.
Technical Context
The MAX1434ECQ+D implements a pipelined ADC architecture with digital error correction and self-aligned serial LVDS/SLVS output drivers. Its internal 1.24V bandgap reference supports ±700mV full-scale differential input range (1.4VP-P), and the on-chip PLL generates the high-speed serial clock from a single-ended CMOS input.
It features a clock duty-cycle equalizer tolerant of ±30% duty cycle variation, 6.5-cycle data latency, and pin-selectable LVDS/SLVS mode. Channel isolation is 94dB, gain matching is ±0.1dB, and phase matching is ±0.25° at 5.3MHz - enabling coherent multichannel acquisition in medical and communications systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - defines quantization granularity for 1024 discrete output levels per channel |
| Max Sampling Rate | 50Msps - supports Nyquist-limited bandwidth up to 25MHz per channel |
| SNR @ 5.3MHz | 61.1dB (typ) - enables >9.9 effective bits (ENOB) for high-fidelity signal capture |
| Channel Isolation | 94dB - ensures minimal crosstalk between adjacent channels in dense layouts |
| Power per Channel | 96mW (typ) - allows thermal management in compact multichannel PCBs |
| Differential Input Range | 1.4VP-P - accommodates standard clinical ultrasound transducer signal swing |
| Reference Voltage | 1.24V (internal, ±120ppm/°C) - provides stable full-scale scaling without external components |
Pinout & Package
MAX1434ECQ+D is packaged in a 14mm × 14mm × 1mm, 100-pin TQFP with exposed pad (EP), rated for -40°C to +85°C operation. The exposed pad must be soldered to GND for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0P–IN7P / IN0N–IN7N | Octal fully differential analog inputs | Eight independent, matched input pairs supporting synchronous sampling with 1.4VP-P range |
| OUT0P–OUT7P / OUT0N–OUT7N | LVDS/SLVS serialized data outputs | Self-aligned, LSB-first serial streams per channel; support FR-4 backplane runs up to 30 inches |
| CLK | Single-ended CMOS clock input | Accepts 4.8–50MHz clock with ±30% duty cycle tolerance; internal equalizer corrects skew |
| CLKOUTP/CLKOUTN | LVDS/SLVS serial clock output | Output-synchronized clock aligned to data edges; eliminates external clock distribution jitter |
| FRAMEP/FRAMEN | Frame alignment signal | Rising edge marks start of valid D0 sample across all eight channels - critical for time-coherent reconstruction |
| SLVS/LVDS | Output format select | Logic-high selects SLVS (205mV diff); logic-low selects LVDS (250–450mV diff) for system-level interface compatibility |
| T/B | Output data format select | Logic-high = binary; logic-low = two's complement - enables direct FPGA or DSP interface alignment |
| PD | Global power-down control | Assert high to disable all ADC channels and reference; 100ms wake-up time with 1µF bypass caps |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential analog inputs | Enables rejection of common-mode noise in high-gain ultrasound receive chains |
| Pipelined architecture with digital error correction | Guarantees no missing codes and ±0.1LSB INL over temperature for clinical-grade accuracy |
| On-chip 1.24V precision bandgap reference | Eliminates external reference IC and associated layout sensitivity; 120ppm/°C drift supports industrial temp range |
| Self-aligned LVDS/SLVS serial outputs | Removes inter-channel skew in multichannel systems - essential for beamforming coherence |
| Pin-selectable LVDS/SLVS mode | Allows interoperability with both legacy LVDS receivers and newer low-voltage SLVS interfaces without redesign |
| Internal clock duty-cycle equalizer | Permits use of low-cost crystal oscillators or FPGA-generated clocks without external conditioning circuitry |
Applications
| Ultrasound Imaging Front-End | Digital Communications Receiver |
|---|---|
Use Scenario: Digitizing echo signals from phased-array transducers in portable and cart-based ultrasound systems. IC Role / Device Role / Timing Role: Octal synchronized ADC capturing 8 parallel RF channels with sub-nanosecond inter-channel skew and 61dB SNR at 5.3MHz. Use Value: Enables high-resolution B-mode and Doppler imaging by preserving signal integrity across all receive paths without external clock fanout or level-shifting. | Use Scenario: Baseband sampling in multichannel wireless infrastructure equipment (e.g., LTE MIMO receivers). IC Role / Device Role / Timing Role: Simultaneous digitization of 8 I/Q signal paths with 94dB channel isolation and <0.4psRMS aperture jitter. Use Value: Supports adjacent-channel interference rejection and high-order modulation (e.g., 256-QAM) without cross-coupling-induced EVM degradation. |
| Medical Instrumentation Data Acquisition | High-Speed Test Equipment |
Use Scenario: Multi-sensor physiological monitoring in diagnostic equipment requiring simultaneous EEG, ECG, and EMG capture. IC Role / Device Role / Timing Role: Low-power (96mW/channel), 10-bit digitizer with flexible reference and binary/two's-complement output format selection. Use Value: Reduces system power budget while maintaining DC-coupled accuracy via CMOUT common-mode output and REFIO adjust capability. | Use Scenario: Modular digitizer modules in automated test systems requiring deterministic latency and frame-aligned outputs. IC Role / Device Role / Timing Role: 6.5-cycle fixed-latency ADC with FRAME-aligned serial output and LVDSTEST pattern generation for signal integrity validation. Use Value: Enables precise time-of-flight measurements and deterministic trigger synchronization across multiple instrument slots without FPGA-based deskew logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1437ECQ+ | 12-bit resolution, same 50Msps rate, identical 100-pin TQFP-EP package and pinout | Higher ENOB (11.2 bits) but higher power (145mW/channel); requires tighter layout for noise-sensitive analog inputs | Select when system SNR requirement exceeds 68dB and board space/layout margin permits increased analog section care |
| AD9222ASTZ | 12-bit, 65Msps, 48-lead LQFP; no integrated PLL or LVDS serializer; parallel CMOS outputs only | Lacks serial LVDS/SLVS interface and frame alignment - demands wider data bus and external clock distribution | Select when existing FPGA I/O resources support wide parallel interface and lower channel count (dual-channel) suffices |
Compared with MAX1437ECQ+, the MAX1434ECQ+D trades 2 bits of resolution for 33% lower power and simpler thermal design; compared with AD9222ASTZ, it delivers deterministic inter-channel timing and reduced PCB routing complexity via embedded serialization and frame alignment.
Availability
MAX1434ECQ+D is available at Aetrix Electronics and suitable for ultrasound imaging systems, multichannel communications receivers, and medical instrumentation requiring stable component supply, extended temperature operation (-40°C to +85°C), and RoHS-compliant packaging.
Supply support for MAX1434ECQ+D includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX1434ECQ+D belongs to Maxim's high-speed data converter product line, engineered specifically for multichannel, low-power, high-dynamic-range digitization in portable and rack-mounted medical and telecom equipment.
FAQ
What is the maximum sampling rate supported by the MAX1434ECQ+D?
The MAX1434ECQ+D supports a maximum sampling rate of 50Msps, with a minimum rate of 4.8Msps. This range enables flexible configuration for applications from ultrasound beamforming (requiring high Nyquist bandwidth) to slower sensor data acquisition. The device maintains specified dynamic performance - including 61dB SNR and 84dBc SFDR at 5.3MHz - across its full operating range. At 50Msps, total power dissipation is 767mW.
Does the MAX1434ECQ+D require an external reference voltage?
No, the MAX1434ECQ+D includes an internal 1.24V precision bandgap reference with 120ppm/°C temperature coefficient, eliminating the need for an external reference in most applications. However, REFIO can accept an external reference (1.24V ±5%) when higher accuracy or custom full-scale range is required. REFADJ must be tied to GND for internal reference mode or to AVDD for external mode - no resistive divider is needed unless fine adjustment is desired.
How does the MAX1434ECQ+D handle clock duty-cycle variations?
The MAX1434ECQ+D incorporates an internal clock duty-cycle equalizer that accepts input clock duty cycles from 20% to 80% (±30% tolerance) without degrading dynamic performance. This feature allows direct connection to low-cost crystal oscillators or FPGA-generated clocks without external duty-cycle correction circuitry. Measured SNR remains stable at 61dB across the full duty-cycle range, as confirmed in typical operating characteristics Figure 18–21.
What is the function of the CMOUT pin on the MAX1434ECQ+D?
The CMOUT pin on the MAX1434ECQ+D outputs the internal common-mode reference voltage (0.76V nominal) used by the analog input stage. In DC-coupled applications, CMOUT can drive the common-mode bias of upstream amplifiers or filters to ensure optimal input signal centering. It is specified to deliver ±50mV tolerance over temperature and load, and must be bypassed to GND with ≥0.1µF capacitance. CMOUT is not intended as a general-purpose voltage reference.
Can the MAX1434ECQ+D operate in power-down mode, and what is the wake-up time?
Yes, the MAX1434ECQ+D supports global power-down via the PD pin: driving PD high disables all ADC channels, reference, and output drivers, reducing current to 1.54mA (AVDD) and 566µA (OVDD). Wake-up time is 100ms when CREFP = CREFN = 1µF; this can be reduced by using smaller capacitors. During power-down, REFIO presents >1MΩ impedance to GND, and digital inputs retain their logic states. Full performance resumes after the settling interval.
MAX1434ECQ+D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 100-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 50M
- Number of Inputs:
- 8
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 8
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 100-TQFP-EP (14x14)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1434ECQ+D FAQ
1.How can I place an order for MAX1434ECQ+D through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1434ECQ+D on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1434ECQ+D reliable?
The price and inventory of MAX1434ECQ+D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1434ECQ+D is usually 5 days.
3.What payment methods are accepted for MAX1434ECQ+D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1434ECQ+D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1434ECQ+D?
MAX1434ECQ+D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1434ECQ+D order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1434ECQ+D?
For technical support, including MAX1434ECQ+D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1434ECQ+D requirements.
6.How does Aetrix verify that MAX1434ECQ+D is sourced from the original manufacturer or authorized distributors?
All MAX1434ECQ+D products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1434ECQ+D meets industry standards.
7.What is the process for return or replacement of MAX1434ECQ+D?
All MAX1434ECQ+D units undergo pre-shipment inspection (PSI). If there is an issue with MAX1434ECQ+D, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1434ECQ+D part is unused and in its original packaging.
Return procedure for MAX1434ECQ+D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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