Renesas ISL95711WIU10Z

Overview

ISL95711WIU10Z from Renesas (formerly Intersil) is a digitally controlled potentiometer (XDCP™) with 128-tap resolution, ±2.7V to ±5.5V dual-supply operation, and I²C interface. It implements a 10kΩ end-to-end resistor array with nonvolatile initial value register (IVR), enabling power-up wiper position recall. Used for precision bias adjustment in industrial sensor signal conditioning circuits.

For engineers reviewing the ISL95711WIU10Z datasheet, ISL95711WIU10Z pinout, ISL95711WIU10Z application, or ISL95711WIU10Z equivalent, key selection criteria include I²C slave address configurability (A0/A1), ±2.7V terminal voltage range, 128-step monotonic wiper control, nonvolatile wiper recall, and MSOP-10 RoHS-compliant packaging.

Technical Context

The ISL95711WIU10Z integrates a 127-element resistor ladder with CMOS wiper switches operating in make-before-break mode. Its dual supply architecture (VCC = +2.7V to +5.5V, V− = −2.7V to −5.5V) enables true bipolar voltage divider operation across RH–RL terminals.

Control logic includes a volatile 7-bit Wiper Register (WR) and nonvolatile Initial Value Register (IVR), both accessible via I²C at address 0x00 under Access Control Register (ACR) configuration. Power-on recall loads IVR into WR within 3ms after V− and VCC exceed ±2.5V.

Key Specifications

Pinout & Package

ISL95711WIU10Z is housed in a Pb-free, RoHS-compliant 10-lead MSOP package (M10.118), 3.0mm × 3.0mm footprint, 0.5mm pitch, 1.0mm height.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5171BRMZ10 and MCP45HV51-103E/MS, ISL95711WIU10Z uniquely integrates native dual-supply operation (±2.7V to ±5.5V) with nonvolatile wiper recall and ratiometric ±4ppm/°C tempco - making it optimal for high-stability, bipolar-signal industrial and automotive bias networks where supply simplicity and long-term calibration integrity are critical.

Availability

ISL95711WIU10Z is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive cabin control, programmable amplifier biasing, and medical instrumentation gain trimming requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ISL95711WIU10Z 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

Renesas Electronics Corporation acquired Intersil in 2017 and maintains its precision analog portfolio. Renesas is a global semiconductor leader focused on microcontrollers, analog, power, and connectivity solutions.

The ISL95711WIU10Z belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in industrial, automotive, and medical systems requiring programmable, nonvolatile, and temperature-stable resistance adjustment.

FAQ

What is the terminal voltage rating for ISL95711WIU10Z?

The ISL95711WIU10Z supports terminal voltages from V− to VCC, with absolute ratings of −6V to +6V. Its recommended operating range is ±2.7V to ±5.5V - meaning RH and RL can swing between −5.5V and +5.5V relative to GND, enabling true bipolar voltage divider configurations without external level shifters. This specification is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of FN8241.3.

Does ISL95711WIU10Z support power-up wiper position recall?

Yes, ISL95711WIU10Z supports automatic power-up wiper position recall via its nonvolatile Initial Value Register (IVR). At power-on, when both V− falls below −2.5V and VCC rises above +2.5V, the device loads the stored IVR value into the volatile Wiper Register (WR) within 3ms. The IVR is pre-programmed to 0x40 (64 decimal) at factory default, centering the wiper, and can be rewritten via I²C to any value from 0x00 to 0x7F.

How many devices can share the same I²C bus with ISL95711WIU10Z?

Up to four ISL95711WIU10Z devices can operate on a single I²C bus. This is enabled by two hardware address pins - A0 and A1 - which configure the two least-significant bits of the 7-bit slave address. With both pins grounded, pulled high, or mixed, four unique addresses (0x50–0x53) are possible. This capability is explicitly stated in the Features section and Pin Descriptions of the FN8241.3 datasheet.

What is the resistance tolerance and temperature coefficient of ISL95711WIU10Z?

The ISL95711WIU10Z has an end-to-end resistance tolerance of ±20% and a typical total resistance temperature coefficient (TCR) of ±50ppm/°C. Its ratiometric temperature coefficient - critical for voltage divider accuracy - is ±4ppm/°C over −40°C to +85°C. These values are measured per the Analog Specifications table in FN8241.3 and apply directly to the 10kΩ version (WIU10Z suffix).

Is ISL95711WIU10Z compatible with standard I²C timing requirements?

Yes, ISL95711WIU10Z complies with standard I²C Fast Mode specifications: maximum SCL frequency of 400kHz, tLOW ≥ 1300ns, tHIGH ≥ 600ns, and tBUF ≥ 1300ns. All timing parameters - including setup/hold times for START/STOP conditions and data validity windows - are fully characterized and guaranteed across the industrial temperature range, as documented in the Serial Interface Specifications table of FN8241.3.