Analog Devices Inc./Maxim Integrated 7705201XC

Overview

7705201XC from Maxim Integrated is a monolithic CMOS 8-channel analog multiplexer with 16-lead flatpack packaging, ±15V supply capability, 400Ω typical ON-resistance, and -55°C to +125°C military-grade operating range. It routes analog signals in precision test equipment, avionics data acquisition, and radiation-tolerant instrumentation systems.

For engineers reviewing the 7705201XC datasheet, 7705201XC pinout, 7705201XC application, or 7705201XC equivalent, key selection criteria include MIL-STD-883B qualification, break-before-make timing (5ns), channel isolation (50dB), and flatpack thermal resistance (65°C/W).

Technical Context

The 7705201XC implements an 8:1 single-ended analog switch architecture using CMOS transmission gates controlled by three address bits (A2–A0) and an active-high enable (EN). It operates with dual supplies up to ±15V and supports analog input voltages from (V−) −2V to (V+) +2V.

Internal clamping diodes protect digital and analog inputs against overvoltage transients beyond V+ or V−, with forward current limited per MIL-STD-883B requirements. Switching performance is characterized across full temperature range (−55°C to +125°C) with guaranteed 50dB crosstalk and isolation at 200kHz.

Key Specifications

Pinout & Package

7705201XC is supplied in a 16-lead CDFP4-16 (flatpack) package per MIL-STD-1835 Outline F16, with ceramic body, metal lid, and side-brazed leads for hermetic sealing and high-reliability mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog multiplexer applications.

Compared with ADG508AKRZ-REEL7 and HI-508AJ/883B, the 7705201XC uniquely combines flatpack hermeticity, MIL-883B Group A–D screening, and guaranteed 5ns break-before-make timing - making it the only option qualified for surface-mount deployment in airborne and spaceborne analog signal routing.

Availability

7705201XC is available at Aetrix Electronics and suitable for avionics data acquisition, precision test equipment, and radiation-tolerant instrumentation requiring stable component supply across long production lifecycles.

Supply support for 7705201XC 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-reliability analog and mixed-signal ICs for aerospace, defense, and industrial applications, emphasizing ruggedized performance and MIL-qualified assurance.

The DG508A/883B product line delivers radiation-tolerant, temperature-stable analog multiplexers engineered specifically for mission-critical signal routing in environments where failure is not an option.

FAQ

What is the maximum analog input voltage range supported by the 7705201XC?

The 7705201XC supports analog input voltages from (V−) −2.0V to (V+) +2.0V. With ±15V supplies, this yields a usable analog range of −17V to +17V referenced to ground. Internal clamping diodes limit excursions beyond V+ or V−, but forward current must remain within rated limits to avoid damage. This specification is verified across the full −55°C to +125°C operating range.

Is the 7705201XC pin-compatible with other DG508A/883B variants like 7705201EA or 7705201EC?

Yes - the 7705201XC shares identical pinout and electrical functionality with other DG508A/883B SMD variants (e.g., 7705201EA, 7705201EC, 77052012C), differing only in package type (flatpack vs. CERDIP vs. sidebraze vs. LCC). All variants implement the same truth table, timing behavior, and absolute maximum ratings. Mechanical mounting and thermal interface differ, but PCB layout remains consistent across the family.

Does the 7705201XC require external pull-up or pull-down resistors on its address or enable pins?

No - the 7705201XC has internally biased digital inputs with guaranteed VIH = 2.4V and VIL = 0.8V under MIL-STD-883B conditions. Input leakage is ±0.8µA across temperature, eliminating need for external biasing. However, in noisy environments, local RC filtering on EN and address lines is recommended to suppress transient coupling that could cause unintended channel switching.

What is the guaranteed break-before-make time for the 7705201XC, and how is it measured?

The 7705201XC guarantees a minimum break-before-make time of 5.0ns, measured per Figure 3 in the official DG508A/883B datasheet (19-0339 Rev. B). This parameter is tested under V+ = +15V, V− = −15V, TA = −55°C to +125°C, and confirmed across all Group A subgroups. It ensures no overlap between consecutive channel connections, preventing signal shorting during address transitions.

Can the 7705201XC operate with asymmetric supply voltages, such as +12V and −5V?

Yes - the 7705201XC allows asymmetric supplies as long as V+ to V− ≤ 44V and each rail stays within its absolute maximum rating: V+ to GND ≤ +22V and V− to GND ≥ −22V. For example, +12V/−5V yields a 17V differential and satisfies both constraints. Analog input range adjusts accordingly: from (−5V) −2V = −7V to (+12V) +2V = +14V.