My Inquiry
My Account
Renesas ISL23325WFRUZ-TK
- Part No.:
- ISL23325WFRUZ-TK
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 16-UFQFN
- Datasheet:
-
ISL23325WFRUZ-TK.pdf
- Description:
- IC DGT POT 10KOHM 256TAP 16UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,943
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL23325WFRUZ-TK from Renesas Electronics is a dual, volatile, 256-tap digitally controlled potentiometer (DCP) with I²C interface, 10kΩ total resistance, 1.7V–5.5V analog supply (VCC), and 1.2V–5.5V logic supply (VLOGIC), designed for precision trimming in battery-powered instrumentation and sensor circuits.
For engineers reviewing the ISL23325WFRUZ-TK datasheet, ISL23325WFRUZ-TK pinout, ISL23325WFRUZ-TK application, or ISL23325WFRUZ-TK equivalent, key selection considerations include its 10kΩ end-to-end resistance, ±0.5 LSB integral nonlinearity in voltage divider mode, 70Ω typical wiper resistance at 3.3V, shutdown mode with internal RL connection, and 16-lead µTQFN package with independent VLOGIC for low-voltage bus compatibility.
Technical Context
The ISL23325WFRUZ-TK integrates two independent DCP cores on a monolithic CMOS die, each with an 8-bit volatile wiper register (WR0/WR1) directly accessible via I²C. Wiper positioning uses make-before-break CMOS switches across a resistor ladder, ensuring monotonicity and glitch-free transitions.
Its dual-rail architecture separates analog power (VCC) from digital logic (VLOGIC), enabling direct interfacing with 1.2V I²C masters without level shifters. Shutdown mode disconnects RH–RL paths while connecting RW to RL through a 2kΩ resistor, reducing leakage and power consumption during idle states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance | 10kΩ - defines full-scale adjustment range in voltage divider or rheostat configurations |
| Wiper Resolution | 256 taps (8-bit) - enables 0.39% step resolution across full resistance range |
| INL (Voltage Divider) | ±0.5 LSB - ensures high linearity for precision gain/offset calibration |
| Wiper Resistance | 70Ω typical @ VCC = 3.3V - minimizes signal path error in low-impedance feedback loops |
| Supply Range (VCC) | 1.7V to 5.5V - supports single-cell Li-ion to 5V rail systems |
| Logic Supply (VLOGIC) | 1.2V to 5.5V - allows direct connection to 1.2V/1.8V/3.3V/5V microcontrollers |
| Temp Range | -40°C to +125°C - qualified for industrial and automotive under-hood environments |
Pinout & Package
ISL23325WFRUZ-TK is housed in a 16-lead 2.6mm × 1.8mm µTQFN package (RoHS-compliant, e4 NiPdAu termination), optimized for space-constrained PCB layouts and thermal performance (θJA = 110°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return for analog and digital sections; must be low-impedance |
| VLOGIC | I²C logic supply | Provides power and level translation for SDA/SCL/A0–A2; independent of VCC |
| SDA | I²C bidirectional data | Open-drain interface requiring external pull-up; supports standard/fast-mode I²C |
| SCL | I²C clock input | Master-generated clock; open-drain, requires external pull-up |
| A0–A2 | Slave address inputs | Hardwired to VLOGIC or GND to select one of eight I²C addresses |
| RH0, RL0, RW0 | DCP0 high/low/wiper | Three-terminal potentiometer or two-terminal rheostat interface for channel 0 |
| RH1, RL1, RW1 | DCP1 high/low/wiper | Independent second potentiometer channel with identical electrical behavior |
| VCC | Analog supply | Power for resistor array and wiper switches; sets max DCP terminal voltage |
Key Features
| Feature | Design Value |
|---|---|
| Dual 256-tap DCPs | Enables simultaneous independent adjustment of two signal paths (e.g., differential gain/offset) |
| Volatile wiper registers | WR0/WR1 retain position only while powered; reset to mid-scale (128) on power-up for predictable startup |
| Independent VLOGIC rail | Eliminates need for external level shifters when interfacing with sub-1.8V microcontrollers |
| Shutdown mode | Forces open-circuit RH–RL and connects RW to RL via 2kΩ, reducing system leakage and power draw |
| Low wiper resistance | 70Ω typical ensures minimal insertion loss in precision analog signal chains |
Applications
| Power Supply Margining | Sensor Circuit Trimming |
|---|---|
Use Scenario: Adjusting reference voltage thresholds in DC-DC converter feedback loops to validate stability margins across voltage/temp corners. IC Role / Device Role / Timing Role: Dual DCP acts as programmable voltage divider setting upper/lower margin limits on VREF pins. Use Value: Enables automated margin testing without manual resistor changes; 10kΩ value matches typical feedback network impedances. | Use Scenario: Calibrating offset and gain errors in bridge-based pressure or temperature sensors before ADC digitization. IC Role / Device Role / Timing Role: ISL23325WFRUZ-TK provides two independent trim points: one for zero-point offset (RW0–RL0), one for span gain (RW1–RH1). Use Value: ±0.5 LSB INL ensures <0.2% full-scale calibration accuracy; 125 ppm/°C end-to-end TC meets industrial sensor drift requirements. |
| Battery-Powered Instrument Gain | RF Power Amplifier Bias |
Use Scenario: Dynamically adjusting transimpedance amplifier gain in portable medical pulse oximeters to maintain SNR across varying LED drive currents. IC Role / Device Role / Timing Role: Configured as rheostat (RW0–RL0) in feedback path; updated via I²C during runtime based on photodiode current readings. Use Value: 1.7V minimum VCC allows operation from single 1.8V LDO; 3µA standby current extends battery life in sleep modes. | Use Scenario: Compensating temperature-induced bias drift in GaAs FET power amplifiers used in IoT wireless modules. IC Role / Device Role / Timing Role: ISL23325WFRUZ-TK adjusts gate bias voltage (via RW1–RL1) using temperature-sensed lookup table stored in host MCU. Use Value: 10kΩ resistance and 70Ω wiper minimize loading on sensitive bias nodes; -40°C to +125°C rating covers full operating envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRMZ-10 | Single-channel, 256-tap, SPI interface, 10kΩ, 2.7–5.5V supply, no independent logic rail | Lacks dual-channel capability and VLOGIC flexibility; requires SPI master instead of I²C | Choose when system already uses SPI peripherals and only one trim point is needed |
| MCP45HV51-103E/MS | Dual-channel, 256-tap, I²C, 10kΩ, 4.5–22V high-voltage operation, no VLOGIC pin | Supports higher VCC but lacks 1.2V logic compatibility; larger TSSOP-14 package | Prefer for high-voltage (>5.5V) analog rails where 1.2V bus compatibility is unnecessary |
Compared with AD5170BRMZ-10 and MCP45HV51-103E/MS, the ISL23325WFRUZ-TK uniquely combines dual DCPs, 1.2V–5.5V VLOGIC independence, and 16-lead µTQFN packaging-making it optimal for compact, low-voltage, multi-parameter calibration in battery-operated industrial devices.
Availability
ISL23325WFRUZ-TK is available at Aetrix Electronics and suitable for power supply margining, sensor circuit trimming, and battery-powered instrument gain adjustment requiring stable component supply across extended temperature ranges.
Supply support for ISL23325WFRUZ-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 is a global semiconductor leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT applications.
The ISL23325WFRUZ-TK belongs to Renesas' precision analog portfolio, engineered specifically for low-power, high-accuracy digital trimming in space- and energy-constrained systems where traditional mechanical potentiometers fail.
FAQ
What is the total resistance value of the ISL23325WFRUZ-TK?
The ISL23325WFRUZ-TK has a nominal total resistance (RH to RL) of 10kΩ, as indicated by the 'W' in its part number per Renesas ordering information. This value is guaranteed within ±20% tolerance over temperature and is optimized for low-drift applications with a 125 ppm/°C end-to-end temperature coefficient.
Does the ISL23325WFRUZ-TK retain wiper settings after power cycling?
No, the ISL23325WFRUZ-TK uses volatile wiper registers (WR0 and WR1). Upon power-up, both wipers reset to the mid-scale position (tap 128, hex 80h), ensuring a known, repeatable startup state. Non-volatile alternatives require external EEPROM or host MCU storage.
Can the ISL23325WFRUZ-TK operate with a 1.2V I²C bus while VCC is at 3.3V?
Yes. The ISL23325WFRUZ-TK features a dedicated VLOGIC pin that accepts 1.2V–5.5V, enabling direct connection to 1.2V I²C masters without level shifters. Its digital interface remains fully functional even when VLOGIC = 1.2V and VCC = 3.3V, as confirmed in the operating specifications table.
What is the maximum wiper current rating for the ISL23325WFRUZ-TK?
The absolute maximum wiper current (IW) for the ISL23325WFRUZ-TK is ±6mA for short durations (≤10 seconds), but the recommended operating limit is ±3mA. Exceeding ±3mA may degrade long-term reliability and increase wiper resistance drift, especially at elevated temperatures.
How does shutdown mode affect the terminal connections in the ISL23325WFRUZ-TK?
In shutdown mode (SHDN bit = 0 in ACR), the ISL23325WFRUZ-TK forces an open circuit between RH and RL terminals while internally connecting RW to RL via a 2kΩ resistor. This configuration isolates the DCP from the signal path while maintaining a defined DC path to ground, minimizing system leakage and power consumption.
ISL23325WFRUZ-TK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 16-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 2
- Number of Taps:
- 256
- Resistance (Ohms):
- 10k
- Interface:
- I2C
- Memory Type:
- Volatile
- Voltage - Supply:
- 1.2V ~ 5.5V, 1.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- 125ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-UTQFN (2.6x1.8)
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL23325WFRUZ-TK FAQ
1.How can I place an order for ISL23325WFRUZ-TK through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL23325WFRUZ-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 ISL23325WFRUZ-TK reliable?
The price and inventory of ISL23325WFRUZ-TK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL23325WFRUZ-TK is usually 5 days.
3.What payment methods are accepted for ISL23325WFRUZ-TK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL23325WFRUZ-TK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL23325WFRUZ-TK?
ISL23325WFRUZ-TK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL23325WFRUZ-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 ISL23325WFRUZ-TK?
For technical support, including ISL23325WFRUZ-TK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL23325WFRUZ-TK requirements.
6.How does Aetrix verify that ISL23325WFRUZ-TK is sourced from the original manufacturer or authorized distributors?
All ISL23325WFRUZ-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 ISL23325WFRUZ-TK meets industry standards.
7.What is the process for return or replacement of ISL23325WFRUZ-TK?
All ISL23325WFRUZ-TK units undergo pre-shipment inspection (PSI). If there is an issue with ISL23325WFRUZ-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 ISL23325WFRUZ-TK part is unused and in its original packaging.
Return procedure for ISL23325WFRUZ-TK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL23325WFRUZ-TK Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
