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Analog Devices Inc./Maxim Integrated DS4301U-200
- Part No.:
- DS4301U-200
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Potentiometers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
DS4301U-200.pdf
- Description:
- IC DGTL POT 200KOHM 32TAP 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,533
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Product details
Overview
DS4301U-200 from Maxim Integrated is a single-channel, 32-position, nonvolatile digital potentiometer with 200kΩ end-to-end resistance, controlled via three-terminal increment/decrement interface (CS, INC, U/D), and featuring EEPROM wiper storage for power-up retention-designed specifically for white LED backlight brightness control in portable battery-powered devices.
For engineers reviewing the DS4301U-200 datasheet, DS4301U-200 pinout, DS4301U-200 application, or DS4301U-200 equivalent, key selection considerations include its 2.4V–5.5V supply range, industrial temperature operation (–40°C to +85°C), µSOP-8 package footprint, ±1mA wiper current rating, and command-initiated NV storage timing (10ms wiper storage time).
Technical Context
The DS4301U-200 implements a 5-bit wiper position register mapped to 32 linear steps across a 200kΩ resistive element, with absolute linearity of ±0.5 LSB and ratiometric tempco of 7 ppm/°C. Its control logic requires CS low to enable INC/U/D interaction, with strict timing constraints including tDI ≥100ns (U/D setup before INC) and tWST = 10ms (EEPROM write latency).
It operates as a true analog voltage divider: terminals H, W, and L form a three-terminal potentiometer where W moves between H and L; wiper resistance is 500–2000Ω, and end-to-end tolerance is ±20% at +25°C. The device draws ≤60µA standby current at 5V and supports up to 50,000 EEPROM write cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 200kΩ ±20% at +25°C - defines full-scale analog range for voltage division or gain setting |
| Wiper Positions | 32 linear steps - enables discrete, repeatable analog adjustment without DAC or microcontroller |
| Supply Voltage Range | 2.4V to 5.5V - compatible with Li-ion, 3.3V, and 5V system rails in portable electronics |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and handheld applications |
| Wiper Storage Time | 10ms - duration required to commit wiper position to EEPROM; blocks further INC activity during write |
| Standby Current | 15–60µA at 3V/5V - enables ultra-low-power retention in always-on backlight control circuits |
| EEPROM Endurance | 50,000 write cycles - determines maximum field-adjustment lifetime before NV storage degradation |
Pinout & Package
DS4301U-200 is housed in an 8-pin µSOP package (118 mil width), optimized for space-constrained portable PCB layouts. Pin assignments are validated per Maxim's official pin configuration diagram and functional description.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 INC | Increment/Decrement Clock Input | High-to-low edge triggers wiper step; direction set by U/D; inactive when CS high |
| 2 U/D | Up/Down Direction Control | High = increment wiper; low = decrement; must be stable ≥100ns before INC edge |
| 3 H | Potentiometer High-End Terminal | Connects to VCC or reference voltage; forms top rail of voltage divider |
| 4 GND | Ground Reference | Return path for supply and analog signals; must be low-impedance for linearity stability |
| 5 W | Wiper Terminal | Adjustable tap point; delivers intermediate voltage/current; max ±1mA load |
| 6 L | Potentiometer Low-End Terminal | Connects to GND or bias node; forms bottom rail of voltage divider |
| 7 CS | Chip Select Enable | Low = enable INC/U/D control; high = freeze wiper; also gates EEPROM store command |
| 8 VCC | Power Supply Input | 2.4V–5.5V analog/digital supply; requires local 0.1µF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Nonvolatile wiper storage | Retains last setting across power cycles via on-chip EEPROM-eliminates need for external memory or initialization firmware |
| Three-terminal serial interface | Requires only CS, INC, and U/D pins-no clock, data lines, or I²C/SPI bus overhead; reduces GPIO count and layout complexity |
| Industrial temperature range | Operates reliably from –40°C to +85°C-suitable for consumer handhelds exposed to ambient thermal extremes |
| Low standby current | As low as 15µA at 3V-extends battery life in always-on backlight dimming circuits |
| µSOP-8 package | 118-mil width, 0.5mm pitch-enables high-density placement in slim mobile phone and PDA PCBs |
Applications
| White LED Backlight Control | Portable Device Power Management |
|---|---|
Use Scenario: Adjusting brightness of white LED arrays in smartphones and PDAs using analog feedback to current regulators. IC Role / Device Role / Timing Role: Acts as programmable voltage divider setting reference voltage for LED driver ICs (e.g., MAX1910), directly controlling output current. Use Value: Enables factory-set or user-adjustable brightness levels with zero software overhead and guaranteed power-up repeatability. |
Use Scenario: Calibrating sensor bias voltages or trimming reference thresholds in battery-powered medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Provides stable, nonvolatile resistance tuning for precision analog front-ends where recalibration after power loss is unacceptable. Use Value: Eliminates manual potentiometer re-trimming and avoids calibration drift due to mechanical wear or vibration. |
| Low-Power Analog Gain Setting | Embedded System Trim Calibration |
Use Scenario: Setting gain of op-amp-based signal conditioning stages in IoT sensor nodes powered by coin cells. IC Role / Device Role / Timing Role: Functions as digitally adjustable feedback resistor in inverting amplifier topology, with wiper position defining closed-loop gain. Use Value: Achieves <±0.5 LSB linearity and <7 ppm/°C ratiometric tempco-critical for maintaining measurement accuracy over temperature. |
Use Scenario: Factory calibration of offset and span in industrial PLC analog input modules prior to deployment. IC Role / Device Role / Timing Role: Serves as one-time or infrequently adjusted trim element replacing mechanical pots in sealed enclosures. Use Value: Supports 50,000 NV write cycles-sufficient for production-line calibration without risk of EEPROM exhaustion in field use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5160BRJZ-200 | Single 256-position, 200kΩ, SPI interface, 2.7–5.5V supply, ±0.1% RAB tolerance | Higher resolution and tighter resistance tolerance-but requires SPI host, larger SOIC-8 package | Choose AD5160BRJZ-200 when fine-grained adjustment and superior end-to-end matching are required, and SPI resources are available. |
| MCP41HV51-203 | Single 256-position, 20kΩ (not 200kΩ), SPI interface, 4.5–18V supply, volatile wiper (no EEPROM) | Wider voltage range and higher voltage tolerance-but lacks NV storage; requires external memory or MCU initialization | Choose MCP41HV51-203 for high-voltage analog control where EEPROM persistence is not needed and SPI is preferred. |
Compared with DS4301U-200, AD5160BRJZ-200 offers higher resolution and tighter tolerance but demands SPI infrastructure and larger board area, while MCP41HV51-203 supports higher voltages but forfeits nonvolatility-making DS4301U-200 optimal for compact, low-power, self-contained LED brightness control.
Availability
DS4301U-200 is available at Aetrix Electronics and suitable for white LED backlight control, portable battery-powered device calibration, and low-power analog gain setting requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DS4301U-200 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and portable applications.
The DS4301U-200 belongs to Maxim's nonvolatile digital potentiometer product line, engineered for space-constrained, battery-operated systems needing reliable, zero-software analog trimming without external memory.
FAQ
What is the power-up behavior of the DS4301U-200?
Upon power application, the DS4301U-200 loads the last stored wiper position from EEPROM within 500µs (tWLT) once VCC reaches a stable ≥2.4V level. The control pins (CS, INC, U/D) become active approximately 2ms (tPU) after stable VCC is achieved. This ensures deterministic startup without external initialization-critical for LED backlight circuits that must resume brightness immediately after wake-up.
How does the DS4301U-200 store wiper settings to EEPROM?
The DS4301U-200 stores the current wiper position to EEPROM only when both CS and INC are held high for ≥500ns (tIC) after the final INC edge. This initiates a 10ms internal write cycle (tWST), during which the interface is inactive. If CS is pulled high before INC rises, no EEPROM write occurs-allowing temporary adjustment without committing changes. This dual-mode operation gives designers precise control over NV persistence.
Can the DS4301U-200 be used in a 3.3V system?
Yes-the DS4301U-200 operates across 2.4V to 5.5V, making it fully compatible with standard 3.3V logic and supply rails. Its VIH threshold is 0.7×VCC (≥2.31V at 3.3V), and VIL is ≤0.3×VCC (≤0.99V), ensuring robust noise margin with 3.3V GPIOs. Standby current at 3.3V is typically 30µA, supporting extended battery life in portable designs.
What is the maximum wiper current rating for the DS4301U-200?
The DS4301U-200 specifies a wiper current rating of ±1mA (DC). Exceeding this may cause excessive self-heating, degrading linearity or accelerating EEPROM wear. In LED backlight applications, this limits usable current through the W–L or W–H path-requiring external current buffers or driver ICs when driving >1mA loads, preserving DS4301U-200 integrity and long-term repeatability.
Is the DS4301U-200 pin-compatible with other Maxim digital potentiometers?
No-the DS4301U-200 uses a unique three-wire increment/decrement interface (CS, INC, U/D) and is not pin-compatible with Maxim's SPI-based potentiometers (e.g., DS1803, MAX5402) or I²C variants. Its µSOP-8 pinout is specific to this family; substitution requires PCB layout revision and firmware interface redesign-not a drop-in replacement.
DS4301U-200 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-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:
- 32
- Resistance (Ohms):
- 200k
- Interface:
- Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.4V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- ±250ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-uMAX/uSOP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 500
DS4301U-200 FAQ
1.How can I place an order for DS4301U-200 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS4301U-200 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 DS4301U-200 reliable?
The price and inventory of DS4301U-200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS4301U-200 is usually 5 days.
3.What payment methods are accepted for DS4301U-200?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS4301U-200 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS4301U-200?
DS4301U-200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS4301U-200 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 DS4301U-200?
For technical support, including DS4301U-200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS4301U-200 requirements.
6.How does Aetrix verify that DS4301U-200 is sourced from the original manufacturer or authorized distributors?
All DS4301U-200 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 DS4301U-200 meets industry standards.
7.What is the process for return or replacement of DS4301U-200?
All DS4301U-200 units undergo pre-shipment inspection (PSI). If there is an issue with DS4301U-200, 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 DS4301U-200 part is unused and in its original packaging.
Return procedure for DS4301U-200:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS4301U-200 Tags
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