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Renesas ISL95710WIU10Z
- Part No.:
- ISL95710WIU10Z
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL95710WIU10Z.pdf
- Description:
- IC DGTL POT 10KOHM 128TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,942
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Product details
Overview
ISL95710WIU10Z from Intersil is a digitally controlled potentiometer (XDCP™) with 128-tap resolution, ±2.7V to ±5.5V terminal voltage range, nonvolatile wiper position storage, and Up/Down interface. It functions as a three-terminal potentiometer or two-terminal rheostat in precision biasing and trimming circuits, supporting industrial control and amplifier gain adjustment.
For engineers reviewing the ISL95710WIU10Z datasheet, ISL95710WIU10Z pinout, ISL95710WIU10Z application, or ISL95710WIU10Z equivalent, key selection criteria include its 10kΩ end-to-end resistance, ±50ppm/°C tempco, 1µA standby current, MSOP-10 package, and nonvolatile store/recall capability for power-up reproducibility.
Technical Context
The ISL95710WIU10Z implements a 127-element resistor array with a 7-bit up/down counter driving a decoder that selects one of 128 wiper tap points. Wiper movement uses make-before-break switching, preventing open-circuit transients during position changes.
Nonvolatile memory stores the wiper position upon CS↑ with INC=HIGH, enabling automatic recall at power-up. The device operates across dual supplies (VCC = +2.7V to +5.5V, V− = −2.7V to −5.5V), supporting bipolar analog signal conditioning in voltage divider or rheostat modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10kΩ ±20% - defines full-scale analog range and current-handling capability in rheostat mode |
| Wiper tap count | 128 positions - provides 7.8mV/LSB resolution in 10V span voltage divider applications |
| Terminal voltage range | ±2.7V to ±5.5V - enables direct use in bipolar op-amp bias networks without level-shifting |
| Resistance tempco | ±50ppm/°C - ensures stable gain/offset over −40°C to +85°C industrial temperature range |
| Standby supply current | 1µA at VCC = +5.5V - minimizes quiescent power in always-on calibration subsystems |
| Nonvolatile endurance | 200,000 write cycles - supports field recalibration over product lifetime without wear-out risk |
| Power-up recall time | ≤1ms after VCC stabilization - guarantees deterministic initial state for safety-critical startup sequences |
Pinout & Package
ISL95710WIU10Z is housed in a Pb-free 10-lead MSOP package (JEDEC MO-187BA, pkg drawing M10.118), measuring 3.0mm × 4.9mm × 1.0mm with 0.5mm lead pitch. Thermal resistance θJA = 170°C/W enables operation at full rating without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 U/D | Direction control input | Logic level determines wiper increment/decrement on each INC falling edge; no internal pull-up/down |
| 2 V− | Negative analog supply | Bipolar reference for wiper voltage swing; must be ramped after CS/INC initialization to prevent glitch |
| 3 GND | Digital ground reference | Common return for logic inputs; isolated from analog RH/RL paths to minimize digital noise coupling |
| 4 CS | Chip select / store trigger | Active-low enable; rising edge with INC=HIGH initiates nonvolatile store; otherwise enters standby |
| 5 NC | No-connect terminal | Must remain unconnected per datasheet; floating or tied to GND/VCC degrades parametric performance |
| 6 RH | High-end resistor terminal | Fixed terminal connected to top of resistor ladder; voltage polarity independent of wiper direction logic |
| 7 RW | Wiper output terminal | Movable contact point; exhibits 70–200Ω typical resistance; make-before-break transition prevents open-circuit |
| 8 RL | Low-end resistor terminal | Fixed terminal connected to bottom of resistor ladder; referenced to V− in bipolar configurations |
| 9 VCC | Positive logic supply | Powers digital core and interface; must reach stable value before CS/INC activation per power-up sequencing |
| 10 INC | Increment clock input | Negative-edge triggered; minimum 2µs cycle time required; hysteresis improves noise immunity on PCB traces |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last position for 50 years at ≤75°C, eliminating need for external EEPROM or MCU-initiated restore at boot |
| Up/Down interface | Eliminates serial protocol overhead; compatible with simple GPIO-based controllers lacking I²C/SPI peripherals |
| Bipolar terminal voltage support | Enables direct integration into dual-supply op-amp feedback networks without external level shifters or clamps |
| Make-before-break wiper switching | Prevents momentary open-circuit during tap transitions, critical for maintaining loop stability in closed-loop bias circuits |
| Low-power standby mode | Draws only 1µA at VCC = 5.5V, allowing continuous presence in battery-backed systems without significant drain |
| Industrial temperature range | Rated for −40°C to +85°C operation, validated across full spec with guaranteed INL/DNL and tempco performance |
Applications
| Amplifier Bias Trimming | Power Supply Feedback Adjustment |
|---|---|
|
Use Scenario: Fine-tuning input offset voltage in precision instrumentation amplifiers across temperature. IC Role / Device Role / Timing Role: Two-terminal rheostat between op-amp input and reference node to adjust DC bias point. Use Value: ±50ppm/°C tempco ensures <±0.5mV drift over −40°C to +85°C, meeting 16-bit system accuracy requirements. |
Use Scenario: Calibrating output voltage setpoint in isolated DC-DC converters during manufacturing test. IC Role / Device Role / Timing Role: Three-terminal potentiometer in feedback divider network of TL431-based shunt regulator. Use Value: 128-tap resolution enables 0.8% step size on 24V output, satisfying ±0.5% final test tolerance without laser trimming. |
| Motor Control Current Sensing Offset | Industrial Sensor Signal Conditioning |
|
Use Scenario: Nulling thermal drift in Hall-effect current sensors used in servo drive phase-leg monitoring. IC Role / Device Role / Timing Role: Voltage divider between sensor output and ADC input to compensate for zero-point drift. Use Value: Nonvolatile store retains calibrated null value across power cycles, eliminating re-zeroing during field maintenance. |
Use Scenario: Scaling output of RTD or thermocouple signal conditioners to match PLC analog input ranges (e.g., 4–20mA). IC Role / Device Role / Timing Role: Programmable gain element in programmable-gain amplifier front-end stage. Use Value: 10kΩ resistance matches standard PGA input impedance targets, minimizing loading error on high-Z sensor outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL95310 | Same Up/Down interface and MSOP-10 package, but 256-tap resolution and 5kΩ/50kΩ options; lower 30ppm/°C tempco | Higher resolution suits 18-bit data acquisition; tighter tempco benefits extended temperature range designs | Select ISL95310 when >128-step granularity or <±30ppm/°C drift budget is required; not drop-in due to different register mapping |
| AD5170BRMZ-10 | I²C interface instead of Up/Down; same 128-tap count and 10kΩ option; 35ppm/°C tempco; 2.7–5.5V single supply | Simplifies host interface in microcontroller-rich systems; lacks bipolar V− support, limiting use to unipolar rails | Choose AD5170BRMZ-10 for I²C-based designs needing software-controlled trim; avoid where bipolar analog signals or minimal GPIO usage are mandatory |
Compared with ISL95710WIU10Z, ISL95310 offers higher resolution and better tempco but requires firmware updates for register compatibility, while AD5170BRMZ-10 trades GPIO simplicity for I²C flexibility and sacrifices bipolar operation-making ISL95710WIU10Z optimal for cost-sensitive, bipolar, GPIO-limited industrial trimming.
Availability
ISL95710WIU10Z is available at Aetrix Electronics and suitable for industrial control systems, automotive sensor calibration modules, and precision amplifier biasing circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ISL95710WIU10Z 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 power management, precision analog, and interface applications.
The ISL95710WIU10Z belongs to Intersil's XDCP™ (eXternally Controlled Digital Potentiometer) family, engineered specifically for robust, nonvolatile analog trimming in harsh industrial and automotive environments where mechanical potentiometers fail.
FAQ
What is the maximum allowable voltage difference between RH and RL terminals for ISL95710WIU10Z?
The absolute maximum voltage difference ΔV = |V(RH) − V(RL)| is 12V per the Absolute Maximum Ratings table. This limit applies regardless of individual terminal voltages relative to GND, enabling safe operation in high-dynamic-range voltage divider configurations where RH and RL span wide analog ranges.
Does ISL95710WIU10Z support true bipolar operation with both positive and negative supply rails?
Yes, ISL95710WIU10Z supports true bipolar operation: VCC can range from +2.7V to +5.5V while V− simultaneously ranges from −2.7V to −5.5V. This allows the wiper (RW) to swing continuously between V− and VCC, making ISL95710WIU10Z suitable for AC-coupled amplifier stages and dual-supply sensor interfaces.
How is nonvolatile storage triggered on ISL95710WIU10Z, and what is the timing requirement?
Nonvolatile storage is triggered by a rising edge on CS while INC is held HIGH. The datasheet specifies tCPHS = 20ms as the minimum time required for the internal self-timed write cycle to complete. During this period, no further CS or INC transitions are permitted to ensure reliable EEPROM programming of the wiper position in ISL95710WIU10Z.
What is the wiper resistance specification for ISL95710WIU10Z, and how does it affect circuit accuracy?
ISL95710WIU10Z specifies wiper resistance (RW) as 70Ω to 200Ω typical under VCC = +5.5V and V− = −5.5V conditions. This on-resistance introduces a small series error in rheostat-mode applications; for example, at 10kΩ total resistance, it contributes ≤2% gain error-acceptable for most trimming tasks but requiring compensation in ultra-precision current-sense shunts.
Can ISL95710WIU10Z be used in place of a mechanical potentiometer without modifying the PCB layout?
Yes, ISL95710WIU10Z uses the same 10-lead MSOP footprint (M10.118) as many legacy mechanical potentiometer IC replacements. Its pinout directly maps RH, RW, and RL to equivalent mechanical terminals, and the Up/Down interface requires only three GPIO lines-enabling drop-in replacement in existing designs where digital control and nonvolatile storage add value without board rework.
ISL95710WIU10Z 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):
- 10k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- ±2.7V ~ 5.5V
- Features:
- -
- 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
ISL95710WIU10Z FAQ
1.How can I place an order for ISL95710WIU10Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL95710WIU10Z 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 ISL95710WIU10Z reliable?
The price and inventory of ISL95710WIU10Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL95710WIU10Z is usually 5 days.
3.What payment methods are accepted for ISL95710WIU10Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL95710WIU10Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL95710WIU10Z?
ISL95710WIU10Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL95710WIU10Z 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 ISL95710WIU10Z?
For technical support, including ISL95710WIU10Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL95710WIU10Z requirements.
6.How does Aetrix verify that ISL95710WIU10Z is sourced from the original manufacturer or authorized distributors?
All ISL95710WIU10Z 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 ISL95710WIU10Z meets industry standards.
7.What is the process for return or replacement of ISL95710WIU10Z?
All ISL95710WIU10Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL95710WIU10Z, 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 ISL95710WIU10Z part is unused and in its original packaging.
Return procedure for ISL95710WIU10Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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