Analog Devices Inc./Maxim Integrated MAX19507ETM+

Overview

MAX19507ETM+ from Maxim Integrated is a dual-channel, 8-bit analog-to-digital converter (ADC) with 130Msps maximum sampling rate, 49.8dBFS SNR at 70MHz, 69dBc SFDR at 70MHz, and 0.4V–1.4V input common-mode voltage range-designed for zero-IF and high-IF sampling in RF receiver front-ends.

For engineers reviewing the MAX19507ETM+ datasheet, MAX19507ETM+ pinout, MAX19507ETM+ application, or MAX19507ETM+ equivalent, key selection considerations include its dual parallel/multiplexed CMOS output bus, programmable clock divider (DIV1/DIV2/DIV4), SPI-controlled register interface, and support for single-ended or differential analog/clock inputs across -40°C to +85°C.

Technical Context

The MAX19507ETM+ employs a 10-stage fully differential pipelined architecture with 9-cycle data latency, enabling high-speed conversion while maintaining low power. Its digital error correction ensures no missing codes and compensates for comparator offsets across all stages.

It supports both internal reference (1.25V ±2%) and external reference (1.25V ±10%), with programmable common-mode voltage (0.45V–1.35V in 0.15V steps) and configurable output data formats (two's complement, gray code, offset binary), plus reversible bit order and out-of-range indicators per channel.

Key Specifications

Pinout & Package

Package: 48-pin thin QFN (7mm × 7mm, 0.8mm height) with exposed pad (EP), RoHS-compliant and lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel ADC applications.

Compared with MAX19506ETM+ (100Msps) and MAX19517ETM+ (10-bit), the MAX19507ETM+ uniquely balances 130Msps throughput, 8-bit precision, and sub-100mW/channel power-making it optimal for cost-sensitive, thermally constrained IF digitization where 49.8dBFS SNR suffices.

Availability

MAX19507ETM+ is available at Aetrix Electronics and suitable for cellular infrastructure, medical ultrasound, and broadband communications requiring stable component supply and guaranteed long-term availability.

Supply support for MAX19507ETM+ 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 high-performance analog, mixed-signal, and power management ICs for demanding industrial, communications, and medical applications.

The MAX19507ETM+ belongs to Maxim's high-speed ADC product line, engineered specifically for zero-IF and high-IF receiver architectures in wireless infrastructure and instrumentation where low power, small footprint, and flexible digital interfacing are critical.

FAQ

What is the absolute maximum analog supply voltage for the MAX19507ETM+?

The MAX19507ETM+ supports AVDD up to +3.6V. It operates from either 1.8V (direct) or 2.5V–3.3V (via integrated self-sensing regulator). Exceeding 3.6V on AVDD risks permanent damage per Absolute Maximum Ratings. The device draws 271mA analog current at 3.3V AVDD in dual-channel mode-confirm thermal design margins accordingly. Always bypass each AVDD pair (pins 1/48 and 12/13) with 0.1µF capacitors to GND.

Does the MAX19507ETM+ support single-ended analog input configuration?

Yes, the MAX19507ETM+ supports single-ended analog inputs: tie INA− or INB− to the corresponding common-mode reference (CMA or CMB) or to a fixed bias voltage within 0.4V–1.4V. Input resistance remains ~4kΩ differential, and full-scale range stays at 1.5V_P-P. Performance metrics (e.g., 49.8dBFS SNR at 70MHz) are specified for differential operation but remain usable in single-ended mode with minor degradation in SFDR due to common-mode noise rejection loss.

How does the MAX19507ETM+ handle clock synchronization between channels?

The MAX19507ETM+ guarantees interchannel matching via shared clock tree and pipeline architecture: gain match is ±0.05dB, phase match ±0.5°, and offset match ±0.2%FSR at 70MHz. The SYNC input (pin 14) allows external synchronization of clock-divider modes across multiple devices. No internal PLL or DLL is used-the ADC relies on clean, low-jitter differential clocking (CLK+/CLK−) to maintain deterministic latency (9 cycles) and minimize skew between A/B channels.

Can the MAX19507ETM+ operate without an external reference?

Yes, the MAX19507ETM+ operates with its internal 1.25V ±2% bandgap reference when REFIO is bypassed to GND with ≥0.1µF. This eliminates need for external reference ICs in cost-sensitive designs. External reference (1.25V ±10%) is optional for trimming full-scale gain using the formula V_FS = 1.5 × [V_REFIO/1.25] V. Internal reference temperature coefficient is <±60ppm/°C-sufficient for most industrial IF sampling applications.

What are the power-down and standby current specifications for the MAX19507ETM+?

In power-down mode (SHDN = high), MAX19507ETM+ draws ≤0.9mW total (≤0.65mW analog, <0.1mA digital). In standby mode, it consumes 21mW (11.5–15mA analog, 21–27mA digital). Wake-up time from shutdown is 5ms (with internal reference, C_REFIO = 0.1µF); from standby, it's 15µs. These states retain register settings and eliminate reinitialization overhead during burst-mode acquisition in portable instrumentation.