Renesas X9408WV24Z-2.7

Overview

X9408WV24Z-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 64-tap resistor arrays per channel, 2-wire I²C-compatible interface, 10 kΩ end-to-end resistance, and operation from 2.7 V to 5.5 V. It integrates nonvolatile data registers, volatile wiper counters, hardware write protection, and supports analog signal conditioning in precision sensor front-ends and programmable gain stages.

For engineers reviewing the X9408WV24Z-2.7 datasheet, X9408WV24Z-2.7 pinout, X9408WV24Z-2.7 application, or X9408WV24Z-2.7 equivalent, key selection criteria include its 24-pin TSSOP Pb-free package, ±2.7 V to ±5.5 V dual analog supply range, 100,000-cycle register endurance, and support for global wiper register transfers across all four pots.

Technical Context

The X9408WV24Z-2.7 implements four independent 63-element resistor arrays with CMOS switch-controlled wipers, each driven by a 6-bit volatile Wiper Counter Register (WCR). Each potentiometer features four nonvolatile 6-bit Data Registers (DR0–DR3), with DR0 automatically loaded to the WCR at power-up.

It uses a standard 2-wire bus protocol with slave address 0101[A3:A0], supports ACK polling during nonvolatile writes (t_WR = 5–10 ms), and enables real-time wiper adjustment via Increment/Decrement command synchronized to SCL edges - delivering 10 µs wiper response time (t_WRL, t_WRID).

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (4.4 mm wide), Pb-free (RoHS compliant), moisture sensitivity level (MSL) rated per IPC/JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5204BRUZ10 and MCP42050-I/SL, the X9408WV24Z-2.7 uniquely supports true bipolar analog operation (±2.7 V to ±5.5 V), hardware write protection, and global register transfers - making it optimal for precision sensor signal chains requiring robust, field-updatable calibration.

Availability

X9408WV24Z-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable analog front-ends, and laser diode biasing requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle continuity.

Supply support for X9408WV24Z-2.7 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 (now part of Renesas Electronics) is a semiconductor company specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications markets.

The X9408 family was designed for high-reliability analog trimming and calibration applications requiring nonvolatile storage, bipolar signal support, and I²C configurability - targeting test equipment, medical instrumentation, and programmable power systems.

FAQ

What is the absolute maximum voltage rating for the V+ and V− pins of the X9408WV24Z-2.7?

The X9408WV24Z-2.7 supports V+ up to +10 V and V− down to –10 V referenced to VSS, with a maximum differential (V+) – (V−) of 12 V. These ratings are specified in the Absolute Maximum Ratings table of FN8191 Rev.4.00. Operation within the recommended range of ±2.7 V to ±5.5 V ensures guaranteed performance and longevity of the X9408WV24Z-2.7.

Does the X9408WV24Z-2.7 support true bipolar analog signal operation?

Yes, the X9408WV24Z-2.7 supports true bipolar operation via dedicated V+ and V− analog supply pins, enabling resistor arrays to handle signals ranging from V− to V+. This allows direct use in ±3 V or ±5 V signal paths - unlike single-supply DCPs - and is confirmed in the Analog Specifications section of the X9408WV24Z-2.7 datasheet.

How many nonvolatile data registers does each potentiometer in the X9408WV24Z-2.7 have?

Each of the four potentiometers in the X9408WV24Z-2.7 has four nonvolatile 6-bit Data Registers (DR0–DR3), totaling 16 registers. DR0 is automatically loaded into the Wiper Counter Register at power-up. All registers support 100,000 write cycles and 100-year data retention, as documented in the Endurance and Data Retention table of the X9408WV24Z-2.7 datasheet.

What is the wiper resistance specification for the X9408WV24Z-2.7 at ±5 V analog supply?

The wiper resistance of the X9408WV24Z-2.7 is 40 Ω typical at ±5 V (V+ = +5 V, V− = –5 V), with a maximum of 100 Ω under those conditions. This value is measured with current defined as (VH – VL)/R_TOTAL and appears in the Analog Specifications table on page 11 of FN8191 Rev.4.00 for the X9408WV24Z-2.7 variant.

Can the X9408WV24Z-2.7 perform synchronized wiper updates across all four potentiometers?

Yes, the X9408WV24Z-2.7 supports Global XFR instructions (e.g., "Global XFR Data Registers to Wiper Counter Registers") that simultaneously update all four wiper positions from a single selected Data Register. This capability is explicitly defined in Table 1 (Instruction Set) and Figure 10 of the X9408WV24Z-2.7 datasheet, enabling deterministic, glitch-free calibration sequences.