Analog Devices Inc./Maxim Integrated MAX907CPA

Overview

MAX907CPA from Maxim Integrated is a dual, high-speed, ultra-low-power, single-supply TTL comparator IC designed for precision threshold detection in battery-powered and timing-critical systems. It delivers 40ns propagation delay with only 700µA supply current per comparator (3.5mW), operates from +4.5V to +5.5V, features rail-to-rail input range down to 200mV below ground, and provides TTL-compatible outputs without external pullups - used in high-speed A/D converters and zero-crossing detectors.

For engineers reviewing the MAX907CPA datasheet, MAX907CPA pinout, MAX907CPA application, or MAX907CPA equivalent, key selection considerations include its dual-channel architecture, guaranteed 40ns delay at 5mV overdrive, internal hysteresis eliminating external feedback resistors, and compatibility with 8-pin DIP/SO footprints for legacy industrial and test equipment designs.

Technical Context

The MAX907CPA implements two independent bipolar comparator cells with fixed internal hysteresis (±2mV trip points), enabling clean switching on slow-moving inputs without oscillation. Its input stage accepts common-mode voltages from –0.2V to V+–1.5V, supporting ground-referenced signal discrimination in single-supply systems.

Each comparator drives a TTL-compatible output stage capable of sourcing 100µA or sinking 3.2mA, with VOH ≥2.8V and VOL ≤0.55V across –40°C to +85°C. Propagation delay skew between channels is limited to 2ns, ensuring matched timing in dual-channel sampling applications.

Key Specifications

Pinout & Package

MAX907CPA is housed in an 8-pin plastic DIP package (0.3-inch width) with through-hole mounting. Pin spacing is 0.1 inch, body width 0.3 inches, and lead finish is matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed comparator applications.

Compared with LM393DR and TLV3501CDR, the MAX907CPA uniquely balances TTL compatibility, ultra-low power (700µA), and 40ns speed with built-in hysteresis - making it optimal for legacy 5V systems where board space, BOM count, and supply headroom are constrained.

Availability

MAX907CPA is available at Aetrix Electronics and suitable for battery-powered instrumentation, high-speed data acquisition, and industrial line receiver designs requiring stable component supply and long-term obsolescence management.

Supply support for MAX907CPA 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) is a U.S.-based semiconductor company specializing in precision analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

The MAX907CPA belongs to Maxim's legacy high-speed comparator product line, engineered specifically for single-supply 5V systems demanding low power, fast response, and robust noise immunity in measurement and control circuits.

FAQ

What is the operating temperature range for MAX907CPA?

The MAX907CPA is specified for 0°C to +70°C operation, matching the 'C' grade designation in its part number. This commercial temperature range suits indoor instrumentation, test equipment, and consumer electronics where ambient thermal conditions remain controlled. The device's electrical parameters - including 40ns propagation delay and 1mV offset voltage - are guaranteed across this full range, unlike extended-temperature variants such as MAX907EPA (–40°C to +85°C).

Does MAX907CPA require external hysteresis components?

No, the MAX907CPA incorporates fixed internal hysteresis of approximately ±2mV, eliminating the need for external feedback resistors. This design choice ensures consistent switching behavior even with slow-moving input signals, reduces PCB footprint, and avoids tolerance-related drift in threshold accuracy. Unlike comparators such as LM393, the MAX907CPA achieves clean output transitions without any external network - a key advantage in compact, high-reliability designs.

Can MAX907CPA drive standard TTL logic inputs directly?

Yes, MAX907CPA features true TTL-compatible push-pull outputs that source ≥100µA and sink ≥3.2mA while maintaining VOH ≥2.8V and VOL ≤0.55V under load. This allows direct interface with 74LS, 74F, and other standard TTL families without pullup resistors or level shifters - simplifying interconnect design and improving noise margin in mixed-logic systems where the MAX907CPA serves as a front-end signal conditioner.

What package type does MAX907CPA use?

The MAX907CPA uses an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and 0.1-inch pin pitch. This through-hole package supports manual assembly, prototyping, and legacy socket-based systems. Its pinout matches industry-standard dual comparator layouts, enabling drop-in replacement in existing designs originally using LM393 or similar DIP-packaged comparators - provided timing and hysteresis requirements align.

Is MAX907CPA recommended for new designs?

No - Maxim has designated the MAX907CPA as "Not Recommended for New Designs" due to discontinuation of its underlying bipolar wafer process. While fully functional and supported for existing products, Aetrix Electronics advises evaluating modern alternatives like TLV3501 or MAX961 for new projects. Lifecycle documentation, datasheets, and legacy stock remain available to support ongoing manufacturing and repair of deployed systems using MAX907CPA.