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Renesas ISL22313UFU10Z
- Part No.:
- ISL22313UFU10Z
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL22313UFU10Z.pdf
- Description:
- IC DGTL POT 50KOHM 256TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,112
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Product details
Overview
ISL22313UFU10Z from Renesas (formerly Intersil) is a single-channel, 256-tap digitally controlled potentiometer (XDCP™) with I²C interface, 50kΩ end-to-end resistance, dual supply capability (VCC = +2.25V to +5.5V, V− = −2.25V to −5.5V), and extended industrial temperature range (−40°C to +125°C). It functions as a programmable voltage divider or rheostat in precision analog signal conditioning circuits.
For engineers reviewing the ISL22313UFU10Z datasheet, ISL22313UFU10Z pinout, ISL22313UFU10Z application, or ISL22313UFU10Z equivalent, this device supports low-noise, low-power, bipolar-range analog tuning in sensor front-ends, power supply feedback loops, and calibration systems requiring non-volatile wiper recall and 14 general-purpose EEPROM registers.
Technical Context
The ISL22313UFU10Z implements a monolithic CMOS resistor ladder with CMOS switch matrix and volatile Wiper Register (WR) plus non-volatile Initial Value Register (IVR) and 14 GP registers. Its "make-before-break" wiper switching ensures glitch-free transitions during tap changes.
It operates in dual-supply mode enabling DCP terminal voltages from V− to VCC, supporting true bipolar signal ranges. The I²C interface uses open-drain SDA/SCL with two address pins (A0/A1), allowing up to four devices on one bus at standard-mode speeds (≤400 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance | 50kΩ - defines full-scale analog range for voltage division or current limiting in feedback networks. |
| Taps | 256 - provides 8-bit resolution (≈0.39% step size) for fine-grained analog parameter adjustment. |
| Supply Range | VCC = 2.25V–5.5V; V− = −2.25V–−5.5V - enables operation across bipolar rails for AC-coupled or dual-rail signal paths. |
| Wiper Resistance | 70Ω typical - minimizes insertion error in precision gain-setting or offset trimming applications. |
| Standby Current | <2.5µA max at +125°C - supports ultra-low-power operation in always-on calibration subsystems. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and harsh-environment instrumentation. |
| Non-volatile Endurance | 1,000,000 write cycles - ensures long-term reliability for field-updatable calibration data storage. |
Pinout & Package
ISL22313UFU10Z is housed in a RoHS-compliant 10-lead MSOP (M10.118) package with exposed pad for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | I²C clock input | Open-drain input requiring external pull-up; synchronizes all register read/write operations. |
| SDA | I²C bidirectional data line | Open-drain I/O; carries device address, register addresses, and wiper data; requires external pull-up. |
| A1, A0 | I²C slave address inputs | Set LSBs of 7-bit slave address; enable up to four ISL22313UFU10Z devices on shared I²C bus. |
| V− | Negative supply rail | Supports bipolar DCP operation; allows RH/RL terminals to swing below GND (e.g., −5.5V to +5.5V span). |
| GND | Digital ground reference | Reference for logic-level signals (A0/A1/SCL/SDA); separate from analog return path in mixed-signal layouts. |
| RL | DCP low terminal | Fixed end of resistor ladder; connects to lowest potential node in voltage divider or rheostat configuration. |
| RW | DCP wiper terminal | Movable contact; output node whose voltage/resistance is digitally set via WR register; 70Ω typical RW. |
| RH | DCP high terminal | Fixed end of resistor ladder; connects to highest potential node; supports rail-to-rail analog signal routing. |
| VCC | Positive supply rail | Power source for logic and analog circuitry; must be ≥|V−| for proper dual-supply biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Non-volatile wiper recall | On power-up, IVR contents automatically load into WR - eliminates startup drift in closed-loop systems. |
| 14 GP non-volatile registers | Store calibration coefficients, lookup tables, or system IDs - enables self-contained field-programmable analog modules. |
| Dual-supply DCP operation | V− to VCC terminal voltage range - supports true bipolar analog signal conditioning without level-shifting circuitry. |
| Make-before-break wiper switching | Prevents open-circuit glitches during tap transitions - critical for stable feedback in power converters and amplifiers. |
| Low wiper resistance | 70Ω typical - reduces gain error in op-amp gain-setting networks and improves linearity in precision dividers. |
Applications
| Motor Control Feedback Tuning | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Adjusting gain and offset of current-sense amplifier outputs in BLDC motor drivers. IC Role / Device Role / Timing Role: Configurable voltage divider setting op-amp feedback ratio and zero-point calibration. Use Value: Enables factory and field calibration of torque/speed response without hardware changes; 50kΩ tolerance ±20% ensures predictable loop stability. |
Use Scenario: Compensating for temperature-induced drift in RTD or thermocouple signal chains. IC Role / Device Role / Timing Role: Programmable offset injection and span adjustment in analog front-end stages. Use Value: 14 GP registers store temperature-compensation coefficients; non-volatile recall maintains accuracy after power cycling. |
| Programmable Power Supply Feedback | Audio Equipment Level Trimming |
Use Scenario: Digitally adjusting output voltage setpoint in isolated DC-DC converters with optocoupler feedback. IC Role / Device Role / Timing Role: Rheostat-mode element in TL431-based shunt regulator feedback network. Use Value: Dual-supply operation (V− = −5.5V, VCC = +5.5V) accommodates optocoupler CTR variation while maintaining 256-step resolution. |
Use Scenario: Channel balance and volume trim in professional audio mixers with digital control buses. IC Role / Device Role / Timing Role: Low-noise, low-distortion programmable attenuator in line-level signal path. Use Value: 70Ω wiper resistance and ±0.2 LSB DNL (U-option) preserve THD+N performance; I²C address pins allow per-channel addressing. |
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 256-tap DCP, 50kΩ, SPI interface, single 2.7–5.5V supply, no V− pin. | Lacks bipolar rail support; unsuitable for true AC-coupled or negative-rail signal paths. | Choose when SPI is preferred and bipolar operation is unnecessary; lower standby current (500nA). |
| MCP45HV51-503E/MS | Single 256-tap DCP, 50kΩ, I²C, high-voltage tolerant (±36V DCP terminals), single 2.7–5.5V supply. | Supports higher DCP voltage swing but no negative supply rail; no V− pin. | Choose for high-voltage industrial sensors where V− rail is not required; includes hardware shutdown pin. |
Compared with AD5175BRMZ-50 and MCP45HV51-503E/MS, ISL22313UFU10Z uniquely delivers dual-supply operation enabling true bipolar analog tuning - essential for precision instrumentation and motor control where signal excursions below GND occur.
Availability
ISL22313UFU10Z is available at Aetrix Electronics and suitable for motor control feedback tuning, industrial sensor signal conditioning, programmable power supply feedback, and audio equipment level trimming requiring stable component supply across extended temperature and dual-rail operating conditions.
Supply support for ISL22313UFU10Z 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 maintains its high-reliability analog portfolio, emphasizing precision timing, power management, and interface ICs for industrial and automotive markets.
The ISL22313UFU10Z belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimpots in automated calibration, closed-loop control, and field-programmable analog signal paths.
FAQ
What is the total resistance value of the ISL22313UFU10Z?
The ISL22313UFU10Z has a nominal end-to-end resistance of 50kΩ between RH and RL terminals. This value is specified with ±20% tolerance and exhibits ±50 ppm/°C end-to-end temperature coefficient over −40°C to +125°C, making it suitable for stable gain-setting applications in demanding environments.
Does the ISL22313UFU10Z support bipolar voltage operation?
Yes, the ISL22313UFU10Z supports true bipolar operation via dedicated V− and VCC pins. DCP terminals (RH, RW, RL) can swing from V− (down to −5.5V) to VCC (up to +5.5V), enabling use in AC-coupled circuits, dual-rail op-amp configurations, and sensor interfaces requiring negative signal handling - a capability not found in most single-supply DCPs.
How does the non-volatile memory function in the ISL22313UFU10Z?
The ISL22313UFU10Z contains a non-volatile Initial Value Register (IVR) and 14 general-purpose non-volatile registers. On power-up, the IVR value loads automatically into the volatile Wiper Register (WR), restoring the last calibrated wiper position. All non-volatile writes require explicit I²C commands and complete in ≤20 ms, with 1,000,000-cycle endurance and 50-year data retention at ≤+55°C.
What is the wiper resistance specification for the ISL22313UFU10Z?
The ISL22313UFU10Z specifies a typical wiper resistance (RW) of 70Ω at 1mA, with a maximum of 250Ω. This low on-resistance minimizes insertion error in precision voltage divider and rheostat configurations - critical for maintaining gain accuracy in op-amp feedback networks and reducing THD in audio signal paths.
Can multiple ISL22313UFU10Z devices share the same I²C bus?
Yes, up to four ISL22313UFU10Z devices can operate on a single I²C bus using the A0 and A1 address pins to configure unique 7-bit slave addresses. Each device responds only to commands matching its hardware-set address, enabling compact multi-channel calibration in space-constrained designs such as modular PLC I/O cards or multi-sensor nodes.
ISL22313UFU10Z 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:
- 256
- Resistance (Ohms):
- 50k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.25V ~ 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 ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL22313UFU10Z FAQ
1.How can I place an order for ISL22313UFU10Z through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL22313UFU10Z 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 ISL22313UFU10Z reliable?
The price and inventory of ISL22313UFU10Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL22313UFU10Z is usually 5 days.
3.What payment methods are accepted for ISL22313UFU10Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL22313UFU10Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL22313UFU10Z?
ISL22313UFU10Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL22313UFU10Z 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 ISL22313UFU10Z?
For technical support, including ISL22313UFU10Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL22313UFU10Z requirements.
6.How does Aetrix verify that ISL22313UFU10Z is sourced from the original manufacturer or authorized distributors?
All ISL22313UFU10Z 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 ISL22313UFU10Z meets industry standards.
7.What is the process for return or replacement of ISL22313UFU10Z?
All ISL22313UFU10Z units undergo pre-shipment inspection (PSI). If there is an issue with ISL22313UFU10Z, 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 ISL22313UFU10Z part is unused and in its original packaging.
Return procedure for ISL22313UFU10Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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