Analog Devices Inc./Maxim Integrated MAX4530CAP

Overview

MAX4530CAP from Maxim Integrated is an 8-channel CMOS analog multiplexer with address latching and dual complementary enable inputs, operating from +2V to +12V single supply or ±2V to ±6V dual supplies. It features 150Ω max on-resistance (75Ω typ at ±5V), rail-to-rail signal handling, 150ns turn-on time, and <1µW quiescent power. It is used in battery-powered data acquisition systems requiring low-leakage, fast-switching analog routing.

For engineers reviewing the MAX4530CAP datasheet, MAX4530CAP pinout, MAX4530CAP application, or MAX4530CAP equivalent, this page delivers verified electrical specs, SSOP-20 package details, truth-table–driven switching behavior, leakage performance across temperature, and real-world timing characteristics under ±4.5V and +5V supply conditions.

Technical Context

The MAX4530CAP implements a single 8:1 analog mux with three address bits (ADDA/ADDB/ADDC), latch-enable (LE), and two independent enable inputs (EN1/EN2) that support break-before-make operation. Its CMOS switch architecture uses matched P/N transistor pairs to achieve low R_ON flatness (≤10Ω) and tight channel-to-channel matching (≤8Ω).

Digital logic thresholds (0.8V low / 2.4V high) ensure TTL- and CMOS-compatibility across supply voltages. Internal ESD protection (>2kV per Method 3015.7) and rail-to-rail analog signal range (V_COM, V_NO = V₋ to V₊) enable robust operation in mixed-signal industrial and avionics environments.

Key Specifications

Pinout & Package

MAX4530CAP is housed in a 20-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, footprint-compatible with SOIC-20 but 30% smaller area. Pin 1 is marked by a beveled corner; device operates with V+ (pin 20), V− (pin 9), and GND (pin 10) referenced to analog ground.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4530CWP, the MAX4530CAP offers 20% smaller footprint and better thermal resistance in compact designs; compared with ADG708BRUZ, it supports wider supply voltage, built-in latching, and higher ESD tolerance - making it superior for industrial and aerospace analog routing where reliability and design simplicity are critical.

Availability

MAX4530CAP is available at Aetrix Electronics and suitable for battery-operated equipment, avionics signal routing, and automated test equipment requiring stable component supply with guaranteed long-term availability and full traceability.

Supply support for MAX4530CAP 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.

The MAX4530CAP belongs to Maxim's low-voltage analog switch/multiplexer product line, designed specifically for precision, low-power, and high-reliability signal routing in harsh or space-constrained environments.

FAQ

What is the maximum analog signal voltage range supported by the MAX4530CAP?

The MAX4530CAP supports rail-to-rail analog signals from V− to V+. With ±5V dual supplies, this means −5V to +5V; with +5V single supply (V− = GND), it supports 0V to +5V. Absolute maximum ratings allow V+ up to +13V and V− down to −0.3V, but sustained operation beyond ±6V or +12V violates specifications. The MAX4530CAP maintains specified R_ON and leakage performance across its full rated supply range.

Does the MAX4530CAP require external pull-up or pull-down resistors on its digital control pins?

No, the MAX4530CAP does not require external pull-up or pull-down resistors on ADDA, ADDB, ADDC, EN1, EN2, or LE. Its digital inputs have guaranteed TTL/CMOS-compatible thresholds (0.8V low / 2.4V high) and input leakage <±0.1µA, allowing direct connection to microcontroller GPIOs or logic gates. The MAX4530CAP operates reliably with clean, actively driven control signals - floating inputs are not recommended due to undefined switching states.

How does the MAX4530CAP handle break-before-make timing during channel switching?

Break-before-make (BBM) is enforced by the complementary EN1/EN2 enable scheme: EN1 must go high and EN2 low *before* a new channel is selected and latched. The MAX4530CAP guarantees a minimum BBM interval of 4ns (typ) and 10ns (max) at +25°C, preventing momentary short-circuits between channels. This timing is independent of address transition speed and is validated in the MAX4530CAP truth table - ensuring safe switching even with asynchronous control signals.

Can the MAX4530CAP operate from a +3.3V single supply, and what performance trade-offs occur?

Yes, the MAX4530CAP operates from +3.3V single supply (V− = GND). At +3.3V, R_ON increases to ~250Ω (typ), t_ON/t_OFF extend to ~350ns, and leakage remains ≤1nA at +25°C. These shifts are documented in the "Single +3V Supply" section of the MAX4530CAP datasheet. System designers should verify signal integrity and settling time in their specific +3.3V application - the MAX4530CAP remains fully functional but with reduced speed and higher conduction loss.

Is the MAX4530CAP pinout compatible with the industry-standard 74HC4351, and which pins map directly?

Yes, the MAX4530CAP is pin-compatible with the 74HC4351 in 20-pin SSOP. Pin-for-pin mapping includes: COM (pin 4), NO0–NO7 (pins 1,2,5,6,16,17,18,19), EN1/EN2 (pins 7/8), ADDA/ADDB/ADDC (pins 12,13,15), LE (pin 11), V+/V−/GND (pins 20,9,10). No PCB changes are required for drop-in replacement - the MAX4530CAP retains identical logic behavior and timing while adding lower R_ON, rail-to-rail operation, and enhanced ESD protection.