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Renesas ISL95711UIU10Z
- Part No.:
- ISL95711UIU10Z
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL95711UIU10Z.pdf
- Description:
- IC DGTL POT 50KOHM 128TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,814
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Product details
Overview
ISL95711UIU10Z from Renesas (formerly Intersil) is a digitally controlled potentiometer (XDCP™) with 128-tap resolution, ±5V terminal voltage capability, I²C serial interface, and nonvolatile wiper position recall. It functions as a three-terminal potentiometer or two-terminal rheostat in precision biasing and calibration circuits requiring stable resistance tuning across industrial temperature range (–40°C to +85°C).
For engineers reviewing the ISL95711UIU10Z datasheet, ISL95711UIU10Z pinout, ISL95711UIU10Z application, or ISL95711UIU10Z equivalent, this device supports I²C slave addressing via A0/A1 pins, delivers ±4 ppm/°C ratiometric tempco in voltage divider mode, and enables power-up wiper recall from nonvolatile memory-critical for factory-set calibration retention in embedded control systems.
Technical Context
The ISL95711UIU10Z implements a 127-element resistor array with CMOS "make-before-break" wiper switching, controlled by a 7-bit volatile Wiper Register (WR) and backed by a nonvolatile Initial Value Register (IVR). Its dual-supply architecture (VCC = +2.7V to +5.5V, V− = −2.7V to −5.5V) enables true bipolar operation across RH–RL terminals.
Communication follows standard I²C protocol at up to 400 kHz, with hardwired slave address (5-bit prefix 01010 plus A1/A0 bits), ACK-based transaction flow, and dedicated Access Control Register (ACR) at address 02h to select between volatile WR and nonvolatile IVR access at address 00h.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total resistance (RTOTAL) | 50 kΩ ±20% - defines end-to-end resistance tolerance for precision gain/bias setting |
| Wiper resolution | 128 taps (7-bit) - enables fine-grained adjustment with 1 LSB ≈ 0.78% of RTOTAL |
| Ratiometric tempco | ±4 ppm/°C - ensures stable voltage division ratio over –40°C to +85°C, critical for sensor signal conditioning |
| Terminal voltage range | V− to VCC (±5V max) - supports bipolar analog signal paths without external level-shifting |
| Nonvolatile endurance | 200,000 write cycles - guarantees long-term field recalibration capability in maintenance-sensitive systems |
| Standby current | 1 µA at VCC = +5.5V - enables low-power operation in battery-backed or energy-constrained subsystems |
| I²C clock frequency | Up to 400 kHz - compatible with standard-mode I²C controllers without timing redesign |
Pinout & Package
ISL95711UIU10Z is housed in a Pb-free 10-lead MSOP package (M10.118), optimized for compact industrial PCB layouts and RoHS-compliant assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SDA | I²C bidirectional data line | Open-drain interface requiring external pull-up; handles address, command, and data transfer with ACK handshake |
| 2 V− | Negative supply rail | Provides reference for bipolar wiper operation; must ramp within 20 ms of VCC for reliable power-on recall |
| 3 GND | Digital ground reference | Common return for logic circuitry; isolated from analog RH/RL/RW paths to minimize noise coupling |
| 4 A1 | I²C slave address bit | LSB of 2-bit hardware address; sets unique bus identity among up to four ISL95711 devices on same I²C bus |
| 5 A0 | I²C slave address bit | MSB of 2-bit hardware address; combined with A1, selects one of four possible 7-bit slave addresses (0x2A–0x2D) |
| 6 RH | Potentiometer high terminal | Fixed end of resistor array; connects to positive rail or signal source in voltage divider or rheostat configurations |
| 7 RW | Wiper terminal | Movable contact point; output node whose voltage/resistance is digitally programmable via WR register |
| 8 RL | Potentiometer low terminal | Fixed end of resistor array; connects to negative rail (V−) or ground in bipolar or unipolar applications |
| 9 VCC | Positive supply rail | Logic and analog core supply; powers internal registers, control logic, and I²C interface |
| 10 SCL | I²C clock input | Open-drain clock line synchronized with SDA; defines timing for all read/write transactions |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper recall | IVR stores default wiper position (pre-programmed 0x40); automatically loads into WR at power-up for repeatable startup behavior |
| I²C address flexibility | A0/A1 pins support four unique slave addresses (0x2A–0x2D), enabling multi-device daisy-chaining without software remapping |
| Bipolar terminal voltage | Supports ±5V across RH–RL - eliminates need for external op-amp level shifters in AC-coupled or dual-supply amplifier bias networks |
| Low-power standby mode | 1 µA VCC current at +5.5V - reduces system quiescent load during idle periods in portable or remote-sensor applications |
| High reliability | 200,000 EEPROM write cycles and 50-year data retention - validated for lifetime recalibration in industrial automation and automotive ECUs |
Applications
| Industrial Sensor Calibration | Programmable Amplifier Bias |
|---|---|
|
Use Scenario: Factory-trimmed offset compensation in pressure transducers using bridge amplifiers. IC Role / Device Role / Timing Role: Three-terminal potentiometer configured as voltage divider to set precise DC bias at amplifier input node. Use Value: ±4 ppm/°C ratiometric tempco maintains calibration accuracy across operating temperature, eliminating manual re-trim during thermal cycling. |
Use Scenario: Adjustable gain and offset control in programmable-gain instrumentation amplifiers for multi-range data acquisition. IC Role / Device Role / Timing Role: Two-terminal rheostat (RW–RL) replacing mechanical trimmer to set feedback resistance in op-amp gain stage. Use Value: 128-tap resolution enables <1% step granularity in gain scaling, supporting automated test equipment (ATE) calibration sequences. |
| Automotive HVAC Control | Medical Instrumentation Offset Tuning |
|
Use Scenario: Cabin temperature setpoint adjustment in digital climate control modules with nonvolatile memory retention. IC Role / Device Role / Timing Role: Potentiometer emulating rotary encoder interface; wiper position stored in IVR for power-loss recovery. Use Value: 50kΩ RTOTAL provides optimal impedance match with microcontroller ADC inputs, minimizing loading error in 12-bit measurement chains. |
Use Scenario: Zero-adjustment circuit in ECG front-end amplifiers requiring traceable, repeatable calibration before patient use. IC Role / Device Role / Timing Role: Voltage divider (VCC→RH, V−→RL, RW→ADC) generating precision reference offset for differential input stage. Use Value: ±5V terminal rating allows direct connection to ±5V op-amp rails, avoiding additional level-shifting components and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5175BRMZ-50 | Single-channel, 256-tap, SPI interface, 50kΩ, ±20% tolerance; no bipolar V− supply support | Requires unipolar supply (2.7V–5.5V); lacks native ±5V terminal voltage capability | Choose when SPI-native host MCU is available and bipolar analog signal paths are not required |
| MCP45HV51-503 | Single-channel, 256-tap, I²C interface, 50kΩ, ±20% tolerance; supports up to ±12V terminal voltage but no nonvolatile IVR | Higher voltage rating but no power-up wiper recall - requires external microcontroller initialization | Choose when extended voltage range (>±5V) is needed and system firmware can manage startup configuration |
Compared with AD5175BRMZ-50 and MCP45HV51-503, ISL95711UIU10Z uniquely combines I²C compatibility, ±5V bipolar operation, and factory-preset nonvolatile wiper recall - making it optimal for calibration-critical, low-maintenance industrial and automotive subsystems where supply simplicity and startup repeatability are design priorities.
Availability
ISL95711UIU10Z is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable amplifier biasing, and automotive HVAC control requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ISL95711UIU10Z 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 acquired Intersil in 2017 and continues to support its precision analog portfolio, including XDCP™ digitally controlled potentiometers, with full datasheet documentation and long-term manufacturing commitment.
The ISL95711UIU10Z belongs to Renesas' XDCP™ family, designed specifically for replacing mechanical potentiometers in automated calibration, bias trimming, and programmable analog signal conditioning applications where nonvolatile setting retention and I²C configurability are essential.
FAQ
What is the terminal voltage rating of the ISL95711UIU10Z?
The ISL95711UIU10Z supports a terminal voltage range from V− to VCC, with absolute maximum ratings of ±6V. Its specified operating range is V− = −2.7V to −5.5V and VCC = +2.7V to +5.5V, enabling true ±5V bipolar operation across RH, RL, and RW terminals - a key differentiator for analog signal conditioning in dual-supply systems. This rating is explicitly confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the FN8241.3 datasheet.
Does the ISL95711UIU10Z support power-up wiper position recall?
Yes, the ISL95711UIU10Z supports automatic wiper position recall at power-up via its nonvolatile Initial Value Register (IVR). Upon stabilization of V− and VCC (≥±2.5V), the device reads the IVR value and loads it into the volatile Wiper Register (WR), positioning the wiper accordingly. The IVR is pre-programmed to 0x40 (64 decimal), centering the wiper at startup unless reprogrammed. This behavior is detailed in the Principles of Operation and Power-On Recall sections of the datasheet.
How many devices can share the same I²C bus with the ISL95711UIU10Z?
Up to four ISL95711UIU10Z devices can operate on a single I²C bus. This is achieved through hardware-selectable slave addressing using the A0 and A1 pins, which configure the two least-significant bits of the 7-bit I²C address (prefix 01010xx). Valid addresses are 0x2A, 0x2B, 0x2C, and 0x2D - confirmed in the Ordering Information table and Pin Descriptions section of the FN8241.3 datasheet.
What is the resistance tolerance and temperature coefficient of the ISL95711UIU10Z?
The ISL95711UIU10Z has an end-to-end resistance tolerance of ±20% and a typical ratiometric temperature coefficient (TCV) of ±4 ppm/°C in voltage divider mode. Its absolute resistance temperature coefficient (TCR) is ±50 ppm/°C. These values are measured over −40°C to +85°C and apply specifically to the 50kΩ version (U option), as documented in the Analog Specifications table of FN8241.3.
Can the ISL95711UIU10Z be used in rheostat mode?
Yes, the ISL95711UIU10Z can be configured as a two-terminal variable resistor (rheostat) by connecting either RH or RL to RW and using the remaining fixed terminal with RW. The datasheet explicitly states this capability and provides performance data for rheostat mode, including integral and differential nonlinearity (RINL, RDNL) and offset (Roffset), confirming functional validity for current-setting and gain-control applications.
ISL95711UIU10Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 128
- Resistance (Ohms):
- 50k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±50ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL95711UIU10Z FAQ
1.How can I place an order for ISL95711UIU10Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95711UIU10Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ISL95711UIU10Z reliable?
The price and inventory of ISL95711UIU10Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95711UIU10Z is usually 5 days.
3.What payment methods are accepted for ISL95711UIU10Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95711UIU10Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95711UIU10Z?
ISL95711UIU10Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95711UIU10Z order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ISL95711UIU10Z?
For technical support, including ISL95711UIU10Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95711UIU10Z requirements.
6.How does Aetrix verify that ISL95711UIU10Z is sourced from the original manufacturer or authorized distributors?
All ISL95711UIU10Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ISL95711UIU10Z meets industry standards.
7.What is the process for return or replacement of ISL95711UIU10Z?
All ISL95711UIU10Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL95711UIU10Z, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ISL95711UIU10Z part is unused and in its original packaging.
Return procedure for ISL95711UIU10Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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