Analog Devices Inc./Maxim Integrated MAX4516CSA+

Overview

MAX4516CSA+ from Maxim Integrated is a single-pole/single-throw (SPST), normally-open (NO), CMOS analog switch optimized for low-voltage dual-supply operation. It delivers 20Ω on-resistance at ±5V, 1nA off-leakage at +25°C, and rail-to-rail signal handling across ±1V to ±6V supplies-enabling precision signal routing in battery-powered audio and data-acquisition systems.

For engineers reviewing the MAX4516CSA+ datasheet, MAX4516CSA+ pinout, MAX4516CSA+ application, or MAX4516CSA+ equivalent, key selection criteria include guaranteed low R_ON flatness (6Ω), fast switching (t_ON = 100ns), charge injection ≤20pC, and SOT23-5 package compatibility with space-constrained portable designs.

Technical Context

The MAX4516CSA+ uses a dual-supply CMOS architecture with V+ and V− pins powering both analog switch elements and internal logic-level translators. Its NO configuration ensures open-circuit default state, eliminating unintended signal paths during power-up or control loss.

All analog terminals (COM, NO, IN) support rail-to-rail voltage swing relative to V− and V+, with ESD protection diodes clamping signals exceeding supply rails. Leakage currents are dominated by reverse-biased ESD diode conduction, varying with analog signal voltage but guaranteed ≤1nA (25°C) and ≤20nA (85°C) in off-state.

Key Specifications

Pinout & Package

SOT23-5 surface-mount package (3.0mm × 1.75mm × 1.3mm), lead-free and RoHS-compliant, optimized for high-density PCB layouts in portable electronics.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4516CSA+, MAX4514CSA+ eliminates the need for a negative rail but sacrifices dual-supply flexibility and rail-to-rail analog range, while ADG1419BRMZ offers higher voltage tolerance at the cost of increased on-resistance and charge injection-making MAX4516CSA+ optimal for compact, low-voltage, low-leakage portable designs.

Availability

MAX4516CSA+ is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term production continuity.

Supply support for MAX4516CSA+ 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, mixed-signal, and power-management ICs for demanding industrial, communications, and consumer applications.

The MAX4516/MAX4517 family targets low-voltage, low-leakage analog switching in portable and battery-sensitive systems-emphasizing guaranteed R_ON, ultra-low leakage, and compact SOT23-5 packaging.

FAQ

What is the maximum supply voltage range supported by the MAX4516CSA+?

The MAX4516CSA+ operates continuously with dual supplies from ±1V to ±6V. Absolute maximum ratings allow V+ up to +13V and V− down to -0.3V, but guaranteed performance-including on-resistance and leakage-is specified only over the ±1V to ±6V range, with full characterization at ±5V. Exceeding ±6V risks parametric degradation or reliability issues.

Is the MAX4516CSA+ pin-compatible with other devices in the MAX4516/MAX4517 family?

Yes, the MAX4516CSA+ shares identical pinout and functionality with all SOT23-5 variants in the MAX4516 series (e.g., MAX4516CUK) and the MAX4517SOT23-5 variants. All SOT23-5 packages use the same 5-pin layout: IN, V−, NO/NC, COM, V+. However, MAX4516CSA+ is not pin-compatible with DIP or SO packages due to differing pin counts and arrangements.

Does the MAX4516CSA+ require external pull-up or pull-down resistors on its IN pin?

No, the MAX4516CSA+ does not require external biasing on the IN pin. Its digital input is CMOS-compatible and referenced to V+, with guaranteed VIH ≥ V+ − 1.5V and VIL ≤ V+ − 3.5V at V+ = +3V to +6V. A clean logic HIGH (≥V+ − 1.5V) or LOW (≤V+ − 3.5V) from a microcontroller GPIO suffices-no external resistors needed for proper switching.

Can the MAX4516CSA+ handle AC-coupled signals without DC biasing?

Yes, the MAX4516CSA+ supports true rail-to-rail analog signals from V− to V+, including AC-coupled waveforms centered at any DC level within that range. Its CMOS switch architecture has no intrinsic DC path requirement; however, external circuitry must ensure signal voltages never exceed V− or V+ to avoid forward-biasing internal ESD diodes and causing leakage or damage.

What is the thermal performance of the MAX4516CSA+ in SOT23-5 package?

The MAX4516CSA+ in SOT23-5 has a thermal resistance θ_JA of 141°C/W (calculated from 571mW max power dissipation at TA = +70°C with 7.1mW/°C derating). At 1mA load current and ±5V supplies, typical power dissipation is <1mW-resulting in negligible self-heating. For high-current or high-temperature environments, keep ambient below +70°C or add local copper pour to improve heat spreading.