Renesas DG444DVZ-T

Overview

DG444DVZ-T from Intersil is a monolithic quad SPST CMOS analog switch with TTL/CMOS-compatible digital inputs, 85Ω max ON resistance, 250ns max turn-on time, and ±20V analog signal handling capability. It serves as a drop-in replacement for DG211/DG212 in precision data acquisition and sample-and-hold circuits requiring low charge injection and bilateral signal routing.

For engineers reviewing the DG444DVZ-T datasheet, DG444DVZ-T pinout, DG444DVZ-T application, or DG444DVZ-T equivalent, key selection criteria include its TSSOP-16 package, DG444 logic polarity (active-low control), ±44V absolute max supply rating, and verified performance across -40°C to +85°C industrial temperature range.

Technical Context

The DG444DVZ-T implements four independent, bidirectional SPST switches fabricated using a high-voltage silicon-gate process with epitaxial layer latch-up protection. Each channel supports symmetric analog conduction with <85Ω rDS(ON) at ±15V supplies and exhibits low 1pC typical charge injection.

Its digital interface accepts 0.8V/2.4V logic thresholds and operates from single (12V) or split (±15V) supplies. The VL pin provides separate logic reference, enabling level-shifting between analog and digital domains without compromising switching integrity.

Key Specifications

Pinout & Package

Package: 16-lead TSSOP (JEDEC MO-153-AB, M16.173), 4.9mm × 6.5mm × 1.1mm body, Pb-free with matte tin finish, MSL3 per J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4617ESE+ and ADG1414BRUZ, the DG444DVZ-T uniquely balances ±20V robustness, TTL/CMOS direct drive, and TSSOP-16 compactness-making it optimal for industrial data loggers and field-deployable test gear where reliability, ease of integration, and wide supply tolerance are jointly critical.

Availability

DG444DVZ-T is available at Aetrix Electronics and suitable for audio switching, battery-operated instrumentation, and automatic test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for DG444DVZ-T 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

Intersil Corporation (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for industrial, aerospace, and communications markets, with ISO9001-certified manufacturing.

The DG444 series belongs to Intersil's precision analog switch product line, engineered specifically for high-fidelity signal routing in data acquisition, test equipment, and medical instrumentation where low distortion, low leakage, and robust ESD tolerance are mandatory.

FAQ

What is the maximum analog signal voltage the DG444DVZ-T can switch?

The DG444DVZ-T supports analog signals from −15V to +15V under standard operating conditions (V+ = +15V, V− = −15V). Its absolute maximum rating allows V+ to V− up to 44V, enabling safe operation with ±20V supplies and 5V headroom for transients. This makes DG444DVZ-T suitable for industrial control and test equipment interfacing with legacy ±15V op-amp stages.

Does the DG444DVZ-T require external pull-up resistors on its INx pins?

No, the DG444DVZ-T does not require external pull-up resistors on IN1–IN4. Its digital inputs are TTL/CMOS-compatible with guaranteed recognition of logic high ≥2.4V and logic low ≤0.8V across the full −40°C to +85°C range. Input current remains below ±0.5μA, allowing direct connection to microcontroller GPIOs or FPGA outputs without additional biasing components.

How does the VL pin function in the DG444DVZ-T?

The VL pin on the DG444DVZ-T sets the logic reference voltage for the digital control inputs. It should be tied to the same supply as the driving logic (typically 5V) and decouples the switching threshold from the analog supply rails (V+/V−). This separation prevents digital switching noise from modulating analog performance and enables reliable operation even when V+ and V− are at extreme potentials (e.g., ±15V), while logic remains at 5V.

Can the DG444DVZ-T be used with single-supply operation?

Yes, the DG444DVZ-T supports single-supply operation from 12V (V+ = 12V, V− = 0V), delivering an analog signal range of 0V to 12V. In this mode, rDS(ON) increases to 160Ω max, and tON extends to 450ns max-but all four switches remain fully functional. This flexibility allows DG444DVZ-T to serve in both legacy split-supply lab gear and modern low-voltage portable instruments without redesign.

What is the thermal resistance (θJA) of the DG444DVZ-T in its TSSOP package?

The DG444DVZ-T in 16-lead TSSOP (M16.173) has a typical junction-to-ambient thermal resistance (θJA) of 150°C/W when mounted on a standard JEDEC high-thermal-conductivity test board in free air. This value assumes no copper pour or thermal vias; adding 1-inch² of 2oz copper on the component side with six thermal vias can reduce θJA by ~35°C/W, supporting continuous operation at full-rated load within the +85°C ambient limit.