My Inquiry
My Account
Renesas ISL23325WFVZ-T7A
- Part No.:
- ISL23325WFVZ-T7A
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL23325WFVZ-T7A.pdf
- Description:
- IC DGT POT 10KOHM 256TAP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,334
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL23325WFVZ-T7A from Renesas Electronics (formerly Intersil) is a dual, volatile, 256-tap digitally controlled potentiometer with I²C interface, 10kΩ total resistance, 14-lead TSSOP package, and operation from 1.7V to 5.5V VCC and 1.2V to 5.5V VLOGIC. It delivers ±0.5 LSB integral nonlinearity in voltage divider mode and supports power supply margining and sensor trimming in battery-powered industrial systems.
For engineers reviewing the ISL23325WFVZ-T7A datasheet, ISL23325WFVZ-T7A pinout, ISL23325WFVZ-T7A application, or ISL23325WFVZ-T7A equivalent, key selection criteria include its dual-channel architecture, mid-scale power-on reset, shutdown mode with end-to-end open circuit, wiper resistance of 70Ω typical at 3.3V, and extended temperature range of –40°C to +125°C.
Technical Context
The ISL23325WFVZ-T7A integrates two independent DCP cores on a monolithic CMOS IC, each with an 8-bit volatile Wiper Register (WR0/WR1) directly accessible via I²C. Its "make-before-break" wiper switching ensures glitch-free transitions during tap changes.
It features separate analog (VCC) and logic (VLOGIC) supplies enabling direct interfacing with 1.2V microcontrollers without level shifters, and includes an Access Control Register (ACR) for global shutdown control that forces RWi to RLi through a 2kΩ resistor while preserving register contents.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Total Resistance | 10kΩ - defines full-scale adjustment range in voltage divider or rheostat configurations |
| Taps per Channel | 256 - provides 8-bit resolution (0–255 decimal) for precise analog parameter tuning |
| VCC Range | 1.7V to 5.5V - supports single-supply operation across low-voltage battery and standard logic rails |
| VLOGIC Range | 1.2V to 5.5V - enables direct connection to ultra-low-voltage I²C masters without translation |
| Wiper Resistance | 70Ω typical @ 3.3V - limits signal attenuation and loading error in precision gain-setting circuits |
| INL (Voltage Divider) | ±0.5 LSB - ensures monotonic, high-fidelity voltage division critical for calibration accuracy |
| Shutdown Current | 1.2µA @ VCC = 1.7V, VLOGIC = 1.2V - minimizes quiescent draw in always-on embedded systems |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and harsh-environment instrumentation |
Pinout & Package
ISL23325WFVZ-T7A is housed in a RoHS-compliant, 14-lead TSSOP package (M14.173), 5.0mm × 4.4mm × 1.2mm body height, with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference | Common return path for analog and digital sections; must be low-impedance for noise immunity |
| VLOGIC | I²C logic supply | Power source for internal level shifter; sets input thresholds and SDA/SCL drive strength |
| SDA | I²C bidirectional data | Open-drain bus line requiring external pull-up; transmits address, commands, and wiper data |
| SCL | I²C clock input | Master-generated timing signal; synchronizes all register reads/writes and wiper updates |
| A0–A2 | Slave address inputs | Hardwired bits setting unique 7-bit I²C address; support up to eight devices on one bus |
| RL0, RW0, RH0 | DCP0 terminals | Low, wiper, and high pins for first potentiometer; form three-terminal divider or two-terminal rheostat |
| RL1, RW1, RH1 | DCP1 terminals | Low, wiper, and high pins for second potentiometer; independently controllable via WR1 |
| VCC | Analog supply | Power for resistor array and CMOS switches; sets maximum DCP terminal voltage (0 to VCC) |
Key Features
| Feature | Design Value |
|---|---|
| Dual 256-tap DCPs | Enables simultaneous calibration of two independent analog paths (e.g., dual-channel sensor front-ends) |
| Volatile Wiper Registers | Allows dynamic real-time adjustment via I²C; no EEPROM wear-out or write latency concerns |
| Independent VCC/VLOGIC | Eliminates need for external level shifters when interfacing with sub-1.8V microcontrollers |
| Mid-scale power-on reset | Guarantees known initial state (tap 128) for safe startup in margining and bias applications |
| Hardware shutdown mode | Disables DCP conduction and isolates wipers, reducing system leakage and enabling safe power sequencing |
| Extended temperature range | Validated operation from –40°C to +125°C supports deployment in automotive engine control and industrial PLC modules |
Applications
| Power Supply Margining | Sensor Circuit Trimming |
|---|---|
Use Scenario: Adjusting reference voltage or feedback divider in DC-DC converters to verify stability margins across voltage/temp corners. IC Role / Device Role / Timing Role: Dual-channel ISL23325WFVZ-T7A acts as programmable feedback network, enabling automated margin testing without manual resistor changes. Use Value: Reduces test time by >90% versus manual potentiometer sweeps and eliminates solder-in variants for qualification. | Use Scenario: Compensating offset/gain drift in bridge-based pressure or temperature sensors over temperature. IC Role / Device Role / Timing Role: ISL23325WFVZ-T7A serves as precision, software-controlled trim element in analog front-end signal chain. Use Value: Achieves <±0.5 LSB INL to maintain sensor accuracy within 0.1% FS across –40°C to +125°C. |
| Battery-Powered Instrument Gain | RF Power Amplifier Bias |
Use Scenario: Dynamically scaling amplifier gain in portable multimeters or handheld analyzers to optimize ADC dynamic range. IC Role / Device Role / Timing Role: ISL23325WFVZ-T7A configures programmable gain stage in low-noise op-amp circuitry. Use Value: Delivers 16nV/√Hz resistor noise density and 70Ω wiper resistance to preserve SNR in µA-level input stages. | Use Scenario: Setting quiescent current in GaAs or LDMOS RF PAs to balance efficiency vs. linearity across process/voltage/temp. IC Role / Device Role / Timing Role: ISL23325WFVZ-T7A adjusts gate bias voltage in PA driver stage via voltage divider configuration. Use Value: Supports fast, repeatable bias tuning with 300ns large-signal wiper settling for production calibration throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5242BRUZ10 | Single 256-tap channel, 10kΩ, SPI interface, 16-lead TSSOP; no VLOGIC independence | Lacks dual-channel capability and 1.2V logic compatibility; requires level shifting for sub-1.8V hosts | Select when only one DCP is needed and SPI is preferred over I²C |
| MCP42010-I/P | Dual 256-tap, 10kΩ, SPI interface, 14-lead PDIP; VDD = 2.7–5.5V only; no dedicated logic supply | No VLOGIC pin - incompatible with 1.2V/1.8V microcontrollers; higher wiper resistance (120Ω) | Choose for legacy through-hole designs where SPI is already standardized and low-voltage logic is not required |
Compared with AD5242BRUZ10 and MCP42010-I/P, the ISL23325WFVZ-T7A uniquely combines dual-channel operation, true 1.2V I²C compatibility, and guaranteed ±0.5 LSB INL - making it optimal for space-constrained, multi-sensor industrial instruments requiring synchronized analog tuning.
Availability
ISL23325WFVZ-T7A is available at Aetrix Electronics and suitable for power supply margining, sensor trimming, battery-powered instrument gain adjustment, and RF power amplifier bias compensation requiring stable component supply across extended temperature ranges.
Supply support for ISL23325WFVZ-T7A 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 Corporation is a global semiconductor leader delivering trusted embedded design innovation, with origins in Intersil's precision analog portfolio.
The ISL23325WFVZ-T7A belongs to Renesas' XDCP™ (eXternally Digitally Controlled Potentiometer) family, engineered for high-accuracy, low-power analog tuning in industrial, automotive, and portable instrumentation where software-defined calibration replaces mechanical trimpots.
FAQ
What is the default wiper position of the ISL23325WFVZ-T7A at power-on?
At power-on, both wiper registers (WR0 and WR1) of the ISL23325WFVZ-T7A reset to 0x80 (128 decimal), positioning each wiper at mid-scale - exactly halfway between RL and RH terminals. This behavior is guaranteed across the full –40°C to +125°C operating range and ensures a known, safe startup state for calibration-critical applications.
Does the ISL23325WFVZ-T7A support true 1.2V I²C bus operation?
Yes, the ISL23325WFVZ-T7A supports true 1.2V I²C bus operation via its dedicated VLOGIC pin, which powers the internal level shifter and sets input thresholds. When VLOGIC = 1.2V, the device accepts VIH ≥ 0.84V and VIL ≤ 0.36V, enabling direct connection to 1.2V microcontrollers without external level translation circuitry.
How does the shutdown mode function in the ISL23325WFVZ-T7A?
In shutdown mode (enabled via SHDN bit in ACR), the ISL23325WFVZ-T7A forces each DCP into an end-to-end open circuit while internally connecting RWi to RLi through a 2kΩ resistor. This reduces leakage and isolates the wiper node, but preserves WR0/WR1 register values so wipers return to prior positions upon exit - with 1.5µs recall time.
What is the wiper resistance specification for the ISL23325WFVZ-T7A, and why does it matter?
The ISL23325WFVZ-T7A has a typical wiper resistance of 70Ω at VCC = 3.3V. This low value minimizes insertion loss and gain error in precision op-amp feedback networks and voltage divider applications. At VCC = 1.7V, wiper resistance rises to 580Ω - a design consideration for low-voltage, high-impedance sensor interfaces where loading effects must be modeled.
Can the ISL23325WFVZ-T7A be used in rheostat (two-terminal) mode?
Yes, the ISL23325WFVZ-T7A supports rheostat mode by connecting either RH or RL to the same potential and using RW and the other terminal. In this configuration, it achieves ±1 MI differential nonlinearity (W option, VCC = 2.7–5.5V) and 10.5 MI offset at 1.7V - validated for gain control and current-limiting applications where three-terminal operation is unnecessary.
ISL23325WFVZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- XDCP™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 14-TSSOP
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 70
ISL23325WFVZ-T7A FAQ
1.How can I place an order for ISL23325WFVZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL23325WFVZ-T7A 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 ISL23325WFVZ-T7A reliable?
The price and inventory of ISL23325WFVZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL23325WFVZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL23325WFVZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL23325WFVZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL23325WFVZ-T7A?
ISL23325WFVZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL23325WFVZ-T7A 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 ISL23325WFVZ-T7A?
For technical support, including ISL23325WFVZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL23325WFVZ-T7A requirements.
6.How does Aetrix verify that ISL23325WFVZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL23325WFVZ-T7A 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 ISL23325WFVZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL23325WFVZ-T7A?
All ISL23325WFVZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL23325WFVZ-T7A, 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 ISL23325WFVZ-T7A part is unused and in its original packaging.
Return procedure for ISL23325WFVZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL23325WFVZ-T7A 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…
