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Renesas ISL22313UFU10Z-TK
- Part No.:
- ISL22313UFU10Z-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL22313UFU10Z-TK.pdf
- Description:
- IC DGTL POT 50KOHM 256TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,526
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Product details
Overview
ISL22313UFU10Z-TK from Renesas (formerly Intersil) is a single-channel digitally controlled potentiometer (XDCP™) with I²C interface, 256-tap resolution, 50kΩ end-to-end resistance, dual supply operation (VCC = +2.25V to +5.5V, V− = −2.25V to −5.5V), and extended industrial temperature range (−40°C to +125°C). It serves as a programmable voltage divider or rheostat in precision analog signal conditioning circuits.
For engineers reviewing the ISL22313UFU10Z-TK datasheet, ISL22313UFU10Z-TK pinout, ISL22313UFU10Z-TK application, or ISL22313UFU10Z-TK equivalent, key selection considerations include bipolar terminal voltage support (V− to VCC), non-volatile wiper position storage, 14 general-purpose NV registers, low standby current (<2.5µA), and MSOP-10 package compatibility with space-constrained industrial control modules.
Technical Context
The ISL22313UFU10Z-TK implements a resistor ladder with CMOS switches and "make-before-break" wiper switching logic, enabling glitch-free transitions between taps. Its volatile Wiper Register (WR) controls real-time wiper position, while the non-volatile Initial Value Register (IVR) ensures power-up repeatability.
It supports I²C slave addressing via A0/A1 pins (up to four devices per bus), operates with open-drain SDA/SCL requiring external pull-ups, and features dual-supply biasing that permits DCP terminal voltages spanning from V− to VCC - critical for bipolar op-amp gain control and offset trimming in ±5V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance | 50kΩ - defines full-scale analog range for voltage division or variable resistance applications. |
| Resolution | 256 taps (8-bit) - enables 0.39% step resolution for fine-grained analog parameter adjustment. |
| Wiper Resistance | 70Ω typical - minimizes insertion error in precision voltage divider configurations. |
| Supply Range | VCC = +2.25V to +5.5V; V− = −2.25V to −5.5V - supports true bipolar operation without level-shifting circuitry. |
| Temperature Range | −40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and harsh-environment instrumentation. |
| Non-volatile Endurance | 1,000,000 write cycles - ensures long-term reliability for field-programmable calibration storage. |
| Standby Current | <2.5µA at +125°C - enables ultra-low-power operation in always-on sensor front-ends. |
Pinout & Package
Package: 10-lead MSOP (M10.118), RoHS-compliant, Pb-free plus anneal finish.
| 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 ISL22313 devices on same I²C bus. |
| V− | Negative supply rail | Bipolar reference for DCP terminals; allows RH/RL/RW to operate down to −5.5V relative to GND. |
| GND | Digital ground reference | Logic-level reference for I²C interface and control logic; separate from analog signal ground paths. |
| RL | DCP low terminal | Fixed end of resistor ladder; connected internally to V− in shutdown mode. |
| RW | DCP wiper terminal | Movable tap point; output node for voltage division or adjustable resistance path. |
| RH | DCP high terminal | Fixed end of resistor ladder; connected internally to VCC in shutdown mode. |
| VCC | Positive supply rail | Power for digital logic and I²C interface; also supplies positive DCP terminal voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Non-volatile wiper storage | Retains last-set wiper position across power cycles via EEPROM-based IVR, eliminating boot-up calibration. |
| 14 GP non-volatile registers | Provide dedicated storage for multi-point lookup tables (e.g., temperature compensation curves) or system configuration data. |
| Dual-supply DCP operation | Enables direct connection to bipolar op-amp rails (e.g., ±5V, ±3.3V), removing need for external level shifters or bias networks. |
| Make-before-break wiper switching | Prevents open-circuit glitches during tap transitions, ensuring continuous signal path integrity in active filter or gain-control loops. |
| Shutdown mode | SHDN bit in ACR disconnects RH/RW and shorts RW to RL, reducing leakage and isolating DCP from signal path when inactive. |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier |
|---|---|
Use Scenario: Field recalibration of pressure transducers using stored factory trim coefficients. IC Role / Device Role / Timing Role: Digitally adjustable voltage divider setting reference offset and span scaling factors in analog front-end. Use Value: Eliminates manual potentiometers; enables remote firmware updates to calibration parameters stored in non-volatile registers. | Use Scenario: Gain selection in programmable instrumentation amplifiers for multi-range data acquisition. IC Role / Device Role / Timing Role: Rheostat-mode configuration between op-amp feedback and inverting input to set closed-loop gain. Use Value: Supports 256 discrete gain steps with <±0.5 LSB INL, enabling precise, software-selectable measurement ranges. |
| Bipolar Signal Offset Control | Motor Drive Current Sensing |
Use Scenario: DC offset nulling in ±15V op-amp stages used in audio or precision DAC output buffers. IC Role / Device Role / Timing Role: Voltage divider with RH tied to +15V, RL tied to −15V, and RW feeding summing junction. Use Value: Full bipolar range (−15V to +15V) wiper sweep enables zero-crossing adjustment without external bias resistors. | Use Scenario: Adjustable shunt amplifier gain in three-phase inverter current sensing circuits. IC Role / Device Role / Timing Role: Precision rheostat in transimpedance stage to scale sensed current into ADC input range. Use Value: 50kΩ resistance and 70Ω wiper resistance minimize gain error drift over −40°C to +125°C (±50 ppm/°C TCR). |
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, no dual supply (VSS = GND only), 10-lead MSOP | Lacks bipolar terminal voltage support; requires level-shifting for negative rail use | Select when SPI-native host interface exists and bipolar operation is unnecessary |
| MCP45HV51-503E/MS | Single 256-tap DCP, 50kΩ, I²C interface, high-voltage tolerant (±36V), 8-lead MSOP | Higher voltage rating but no V− pin; uses GND-referenced dual-rail architecture instead of true dual supply | Select for high-voltage industrial sensors where ±36V terminal swing is required over −5.5V to +5.5V range |
Compared with AD5175BRMZ-50 and MCP45HV51-503E/MS, the ISL22313UFU10Z-TK uniquely delivers true dual-supply operation (V− to VCC) enabling seamless integration into ±5V/±12V analog signal chains without external biasing, while retaining I²C compatibility and non-volatile register storage.
Availability
ISL22313UFU10Z-TK is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplifiers, bipolar signal offset control, and motor drive current sensing requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ISL22313UFU10Z-TK 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 precision analog portfolio, including digitally controlled potentiometers optimized for industrial and automotive signal conditioning.
The ISL22313 series was designed specifically for applications demanding non-volatile programmability, bipolar voltage handling, and robust operation across −40°C to +125°C - targeting industrial automation, test equipment, and high-reliability embedded systems.
FAQ
What is the total resistance value of the ISL22313UFU10Z-TK?
The ISL22313UFU10Z-TK has a nominal end-to-end resistance of 50kΩ between RH and RL terminals. This value is fixed per the "U" option in the part number and is specified with ±20% tolerance over temperature. It defines the full-scale range for both voltage divider and rheostat configurations.
Does the ISL22313UFU10Z-TK support true bipolar operation?
Yes, the ISL22313UFU10Z-TK supports true bipolar operation via dedicated V− and VCC pins. DCP terminals (RH, RW, RL) can swing from V− to VCC, enabling direct connection to ±5V, ±3.3V, or ±12V analog rails without external level-shifting components - a capability confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions sections of the FN6421 datasheet.
How does non-volatile wiper storage work in the ISL22313UFU10Z-TK?
The ISL22313UFU10Z-TK stores wiper position in an 8-bit non-volatile Initial Value Register (IVR). At power-up, the device automatically loads the IVR contents into the volatile Wiper Register (WR), restoring the last-saved tap position. This behavior is hardware-automated and requires no host initialization sequence.
What is the function of the SHDN bit in the Access Control Register of the ISL22313UFU10Z-TK?
The SHDN bit (ACR[6]) in the ISL22313UFU10Z-TK places the DCP into shutdown mode: RH is disconnected from the resistor ladder, and RW is shorted to RL. This reduces leakage and isolates the wiper node, minimizing power consumption and preventing unintended signal coupling during idle periods.
Can multiple ISL22313UFU10Z-TK devices share the same I²C bus?
Yes, up to four ISL22313UFU10Z-TK devices can share one I²C bus using the A0 and A1 address pins to configure unique 7-bit slave addresses. Each device responds only to commands prefixed with its assigned address, enabling coordinated calibration or gain control across multiple channels in a single system.
ISL22313UFU10Z-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-TK FAQ
1.How can I place an order for ISL22313UFU10Z-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL22313UFU10Z-TK 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-TK reliable?
The price and inventory of ISL22313UFU10Z-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL22313UFU10Z-TK is usually 5 days.
3.What payment methods are accepted for ISL22313UFU10Z-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL22313UFU10Z-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL22313UFU10Z-TK?
ISL22313UFU10Z-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL22313UFU10Z-TK 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-TK?
For technical support, including ISL22313UFU10Z-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL22313UFU10Z-TK requirements.
6.How does Aetrix verify that ISL22313UFU10Z-TK is sourced from the original manufacturer or authorized distributors?
All ISL22313UFU10Z-TK 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-TK meets industry standards.
7.What is the process for return or replacement of ISL22313UFU10Z-TK?
All ISL22313UFU10Z-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL22313UFU10Z-TK, 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-TK part is unused and in its original packaging.
Return procedure for ISL22313UFU10Z-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL22313UFU10Z-TK Tags
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