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Renesas ISL23710WIU10Z-T
- Part No.:
- ISL23710WIU10Z-T
- Manufacturer:
- Renesas
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL23710WIU10Z-T.pdf
- Description:
- IC DGTL POT 10KOHM 128TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,472
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Product details
Overview
ISL23710WIU10Z-T from Renesas (formerly Intersil) is a volatile digitally controlled potentiometer (XDCP™) with 128-tap resolution, ±10 kΩ end-to-end resistance, and Up/Down serial interface. It operates from dual supplies (VCC = 2.7–5.5 V, V− = −2.7 to −5.5 V), supports ±3 V or ±5 V terminal voltage ranges, and resets to midscale (tap 64) on power-up. It is used for precision bias trimming in analog signal chains and amplifier feedback networks.
For engineers reviewing the ISL23710WIU10Z-T datasheet, ISL23710WIU10Z-T pinout, ISL23710WIU10Z-T application, or ISL23710WIU10Z-T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in industrial control and sensor conditioning, and confirmed alternative parts with documented functional trade-offs.
Technical Context
The ISL23710WIU10Z-T implements a 127-element resistor ladder with CMOS wiper switches controlled by a 7-bit up/down counter. Wiper position is set via asynchronous edge-triggered INC input, direction selected by U/D, and device enabled by active-low CS - forming a true 3-wire digital interface without clocks or address lines.
Its ratiometric temperature coefficient is ±4 ppm/°C over −40°C to +85°C, and total resistance tempco is ±50 ppm/°C. Wiper resistance is 70 Ω typical at VCC = 3.3 V, and the device features wiper locking (via CS high after INC high) and volatile storage with no EEPROM or nonvolatile memory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10 kΩ ±20% - defines maximum adjustable range in voltage divider or variable resistor configurations. |
| Wiper Resolution | 128 taps (7-bit) - enables 0.78% step resolution across full resistance range for fine analog tuning. |
| Supply Range | VCC = 2.7–5.5 V; V− = −2.7 to −5.5 V - supports bipolar operation for AC-coupled or dual-supply systems. |
| Wiper Tempco (Ratiometric) | ±4 ppm/°C - ensures stable voltage division ratio over temperature, critical for precision reference scaling. |
| Standby Current | 500 nA max at VCC = 5.5 V - enables ultra-low-power retention in battery-backed or energy-sensitive designs. |
| Wiper Resistance | 70 Ω typical at VCC = 3.3 V - limits loading error when driving high-impedance nodes like op-amp inputs. |
| INL / DNL | ±1 LSB / ±0.5 LSB - guarantees monotonicity and predictable linearity in closed-loop calibration routines. |
Pinout & Package
ISL23710WIU10Z-T is housed in a Pb-free 10-lead MSOP package (JEDEC MO-187BA, pkg drawing M10.118), 3.0 mm × 4.8 mm footprint, 0.5 mm pitch, with exposed pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (U/D) | Direction control input | Logic level selects wiper increment (U/D = LOW) or decrement (U/D = HIGH); no internal pull-up/down. |
| 2 (V−) | Negative supply rail | Bipolar bias rail enabling ±3 V or ±5 V terminal swing; must be stable before CS/INC activation. |
| 3 (GND) | Digital ground reference | Reference for logic inputs (CS, U/D, INC); separate from analog ground unless system design permits common connection. |
| 4 (CS) | Chip select enable | Active-low enable: wiper moves only when CS = LOW; CS HIGH after INC HIGH locks wiper position. |
| 5 (NC) | No-connect terminal | Internally unconnected; must remain floating - no external tie or routing permitted. |
| 6 (RH) | High-side fixed terminal | One end of resistor array; voltage polarity relative to RL depends on external circuit, not internal labeling. |
| 7 (RW) | Wiper output terminal | Movable tap point; connects to single resistor node at any time (make-before-break switching). |
| 8 (RL) | Low-side fixed terminal | Other end of resistor array; forms complete potentiometer with RH and RW; bidirectional current capable. |
| 9 (VCC) | Positive supply rail | Logic and analog core supply; VPOR = 2.5 V minimum for reliable power-on reset to tap 64. |
| 10 (INC) | Increment clock input | Negative-edge triggered; each falling edge advances wiper one tap in direction set by U/D state. |
Key Features
| Feature | Design Value |
|---|---|
| Volatile wiper register with lock | Wiper resets to midscale (64) at power-up and can be frozen mid-operation via CS timing - prevents unintended drift during firmware boot. |
| True bipolar terminal voltage support | Operates with RH and RL biased between V− and VCC - enables AC signal attenuation, offset adjustment, and dual-supply amplifier gain control. |
| Ultra-low standby current | 500 nA max at 5.5 V - allows integration into always-on sensor front-ends without compromising battery life. |
| Monotonic 128-tap performance | DNL ≤ ±0.5 LSB across all taps - ensures predictable step response in closed-loop auto-calibration systems. |
| Ratiometric tempco of ±4 ppm/°C | Maintains stable voltage division ratio over −40°C to +85°C - critical for reference scaling in precision ADC drivers. |
Applications
| Industrial Sensor Calibration | Programmable Gain Amplifier |
|---|---|
|
Use Scenario: Trimming offset and span in 4–20 mA transmitter circuits using RTD or strain gauge sensors. IC Role / Device Role / Timing Role: Two-terminal variable resistor setting DC bias in instrumentation amplifier feedback path. Use Value: Enables field recalibration without hardware change; ±20% RTOTAL tolerance accommodates batch resistor variation while maintaining 128-step resolution. |
Use Scenario: Adjusting closed-loop gain of a dual-supply op-amp driving an anti-aliasing filter in data acquisition modules. IC Role / Device Role / Timing Role: Three-terminal potentiometer configuring gain-setting network with RH at VCC, RL at V−, and RW feeding op-amp inverting input. Use Value: Supports ±5 V terminal swing matching op-amp rails; ±4 ppm/°C ratiometric tempco preserves gain accuracy across industrial temperature range. |
| Laser Diode Bias Control | Audio Channel Balance |
|
Use Scenario: Fine-tuning bias current in telecom laser diode driver ICs requiring stable, low-drift current sources. IC Role / Device Role / Timing Role: Variable resistor in DAC-output buffer loop controlling base current of PNP pass transistor. Use Value: 70 Ω typical wiper resistance minimizes injection error into high-gain current mirror; volatile storage avoids unsafe startup conditions. |
Use Scenario: Implementing digital volume control in professional audio mixers with discrete op-amp stages. IC Role / Device Role / Timing Role: Voltage divider between left/right channel signals, with RW feeding summing node to adjust balance ratio. Use Value: Make-before-break switching eliminates audible clicks during adjustment; 128-tap resolution provides <0.5 dB step granularity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digitally controlled potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| X9015IST1I-2.7 | Nonvolatile EEPROM storage; 100 kΩ nominal resistance; SPI interface; 5-lead SOT-23 package. | Retains last wiper position after power cycle; unsuitable for applications requiring guaranteed midscale start-up. | Select when persistent settings outweigh need for power-on reset behavior. |
| AD5170BRMZ-10 | I²C interface; 10 kΩ resistance; 64-tap resolution; ±20% RTOTAL tolerance; 10-lead MSOP package. | Lacks bipolar supply support (VSS = GND only); lower resolution reduces trimming granularity in precision bias loops. | Choose for I²C-bus systems where dual-supply operation is unnecessary and board space matches MSOP footprint. |
Compared with ISL23710WIU10Z-T, X9015IST1I-2.7 offers nonvolatile retention but sacrifices guaranteed midscale initialization and bipolar voltage capability, while AD5170BRMZ-10 simplifies bus integration at the cost of resolution and analog operating range - making ISL23710WIU10Z-T optimal for reset-critical, dual-rail analog trimming.
Availability
ISL23710WIU10Z-T is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplifiers, laser diode bias control, and audio channel balance applications requiring stable component supply, RoHS-compliant packaging, and long-term obsolescence management.
Supply support for ISL23710WIU10Z-T 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 acquired Intersil in 2017 and maintains its precision analog portfolio, emphasizing high-reliability industrial and automotive signal-conditioning solutions.
The ISL23710WIU10Z-T belongs to Intersil's XDCP™ family of volatile digital potentiometers, designed specifically for applications demanding repeatable power-on behavior, bipolar operation, and minimal wiper-induced noise in analog feedback paths.
FAQ
What is the power-on behavior of the ISL23710WIU10Z-T?
The ISL23710WIU10Z-T resets its wiper to midscale (tap 64) on power-up when VCC exceeds 2.5 V (VPOR). This behavior is guaranteed by internal power-on reset circuitry and requires CS and INC to be high before or concurrently with VCC ramp-up to prevent spurious movement. The wiper remains at tap 64 until first INC edge is applied, ensuring deterministic startup in safety-critical analog loops.
Does the ISL23710WIU10Z-T support true bipolar operation?
Yes, the ISL23710WIU10Z-T supports true bipolar terminal voltages: RH and RL can be biased anywhere between V− (−2.7 V to −5.5 V) and VCC (2.7 V to 5.5 V), enabling ±3 V or ±5 V swing. This allows direct use in AC-coupled attenuators, dual-supply op-amp gain networks, and offset-adjust circuits without level-shifting components.
Can the ISL23710WIU10Z-T wiper position be locked during operation?
Yes - the ISL23710WIU10Z-T supports wiper locking: assert CS HIGH after a HIGH-to-LOW transition on INC. Once locked, further INC or U/D activity has no effect until power cycle. This prevents accidental repositioning during firmware execution or ESD events, and is distinct from standby mode (where CS = HIGH but INC inactive).
What is the maximum allowable voltage difference between RH and RL terminals?
The absolute maximum voltage difference ΔV = |V(RH) − V(RL)| for the ISL23710WIU10Z-T is 12 V. This limit applies regardless of individual terminal bias points, provided both remain within the V− to VCC range. Exceeding 12 V risks irreversible damage to the internal resistor array or wiper switches.
Is the ISL23710WIU10Z-T pin-compatible with other Intersil XDCP devices?
No - the ISL23710WIU10Z-T uses a unique 10-lead MSOP pinout optimized for Up/Down interface. Devices like ISL22316 (I²C) or ISL23328 (dual pot) have different pin assignments and cannot be substituted without PCB revision. Pin compatibility is not claimed in the FN6126 datasheet or Renesas documentation.
ISL23710WIU10Z-T 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:
- 128
- Resistance (Ohms):
- 10k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- 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
ISL23710WIU10Z-T FAQ
1.How can I place an order for ISL23710WIU10Z-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL23710WIU10Z-T 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 ISL23710WIU10Z-T reliable?
The price and inventory of ISL23710WIU10Z-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL23710WIU10Z-T is usually 5 days.
3.What payment methods are accepted for ISL23710WIU10Z-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL23710WIU10Z-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL23710WIU10Z-T?
ISL23710WIU10Z-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL23710WIU10Z-T 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 ISL23710WIU10Z-T?
For technical support, including ISL23710WIU10Z-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL23710WIU10Z-T requirements.
6.How does Aetrix verify that ISL23710WIU10Z-T is sourced from the original manufacturer or authorized distributors?
All ISL23710WIU10Z-T 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 ISL23710WIU10Z-T meets industry standards.
7.What is the process for return or replacement of ISL23710WIU10Z-T?
All ISL23710WIU10Z-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL23710WIU10Z-T, 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 ISL23710WIU10Z-T part is unused and in its original packaging.
Return procedure for ISL23710WIU10Z-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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