Analog Devices Inc./Maxim Integrated DG307ACWE

Overview

DG307ACWE from Maxim Integrated is a dual SPDT CMOS analog switch with 15Ω on-resistance, ±15V supply capability, and 100pA leakage current at 25°C, designed for precision signal routing in test instrumentation and data acquisition systems.

For engineers reviewing the DG307ACWE datasheet, DG307ACWE pinout, DG307ACWE application, or DG307ACWE equivalent, key selection criteria include channel count, on-resistance matching (max 1Ω), break-before-make timing, and SOIC-16 package compatibility with industrial temperature range operation.

Technical Context

The DG307ACWE integrates two independent SPDT switches sharing common control logic, each with matched n-channel and p-channel MOSFETs to ensure symmetrical conduction and low charge injection (20pC). It operates from dual ±5V to ±15V supplies or single +5V to +30V rails.

Its internal architecture provides guaranteed break-before-make switching (minimum 20ns), rail-to-rail analog signal handling up to ±13.5V, and TTL/CMOS-compatible digital inputs with 0.8V/2.0V thresholds - enabling direct interfacing with microcontrollers without level-shifting.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (SOICW), 7.6mm × 10.3mm body, 1.27mm pitch, JEDEC MS-013 compliant, rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG307ACWE, MAX307CPE+ offers identical electrical performance in through-hole assembly, while ADG407BRUZ trades off leakage and timing guarantees for extended voltage range - making DG307ACWE optimal for precision, low-drift multiplexing where channel integrity is critical.

Availability

DG307ACWE is available at Aetrix Electronics and suitable for automated test equipment, industrial process controllers, and medical instrumentation requiring stable component supply and long-term manufacturability.

Supply support for DG307ACWE 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 industrial, automotive, and communications applications.

The DG307ACWE belongs to Maxim's legacy CMOS analog switch family, engineered for high-accuracy signal routing in environments demanding low leakage, matched on-resistance, and robust supply flexibility.

FAQ

What is the maximum supply voltage rating for DG307ACWE?

The DG307ACWE supports dual supplies from ±5V to ±15V or a single supply from +5V to +30V. Operation beyond ±15V or +30V risks permanent damage. The device maintains specified on-resistance and leakage performance only within these ranges, and absolute maximum ratings must not be exceeded during power-up sequencing or transient conditions. DG307ACWE requires proper decoupling on V+ and V– pins to prevent latch-up.

Does DG307ACWE support break-before-make switching, and is it guaranteed?

Yes, DG307ACWE guarantees break-before-make operation with a minimum dead time of 20ns between channel disconnect and reconnect events. This is ensured by internal timing circuitry and is specified across temperature and supply voltage. DG307ACWE's guaranteed timing eliminates risk of signal shorting during multiplexing - critical in high-impedance or current-loop applications where even nanosecond overlap could cause measurement corruption or system fault.

What is the typical charge injection value for DG307ACWE, and how does it affect sample-and-hold circuits?

DG307ACWE specifies a maximum charge injection of 20pC, with typical values near 12pC at ±15V supplies. In sample-and-hold applications, this injected charge causes a step error at the hold capacitor, directly impacting settling time and effective resolution. For a 10nF hold capacitor, 20pC yields ~2mV glitch - manageable in 12-bit systems but requiring compensation in 16-bit+ DAQ. DG307ACWE's low, tightly specified charge injection makes it suitable for precision sampling without external nulling circuitry.

Can DG307ACWE operate with unbalanced dual supplies, such as +12V and –5V?

Yes, DG307ACWE accepts asymmetric dual supplies - for example, +12V on V+ and –5V on V– - as long as the total voltage difference (V+ – V–) does not exceed 30V and neither supply violates its respective absolute maximum rating. DG307ACWE maintains full functionality and parameter specifications under such conditions, enabling integration into mixed-rail systems like those combining ±12V op-amps with 5V logic. Ensure GND is referenced to the system common point.

Is DG307ACWE pin-compatible with other devices in the DG30x family?

Yes, DG307ACWE is pin-compatible with DG304A, DG305A, DG306A, and DG307A in the same SOIC-16 package - all share identical pinout, supply connections, and control logic. However, internal configuration differs: DG304A is single SPST x4, DG305A is dual SPST, DG306A is single SPDT, and DG307ACWE is dual SPDT. Functional replacement requires verifying switch topology match; DG307ACWE cannot substitute for DG304A without redesigning signal routing.