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Analog Devices Inc./Maxim Integrated MAX5483ETE+T
- Part No.:
- MAX5483ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Potentiometers
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX5483ETE+T.pdf
- Description:
- IC DGT POT 10KOHM 1024TAP 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,155
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Product details
Overview
MAX5483ETE+T from Maxim Integrated is a 10-bit, nonvolatile, linear-taper digital potentiometer configured as a 2-terminal variable resistor with 10kΩ end-to-end resistance, 35ppm/°C temperature coefficient, and SPI/up-down interface support - used for precision gain/offset adjustment in programmable amplifiers and sensor signal conditioning circuits.
For engineers reviewing the MAX5483ETE+T datasheet, MAX5483ETE+T pinout, MAX5483ETE+T application, or MAX5483ETE+T equivalent, this page delivers verified electrical specs, package mapping to 16-pin TQFN (3mm × 3mm), wiper resistance behavior across code, power supply compatibility (+2.7V to +5.25V single or ±2.5V dual), and real-world design implications of its ratiometric 5ppm/°C tempco and 12ms NV write cycle.
Technical Context
The MAX5483ETE+T implements a segmented resistor ladder with 1024 tap points controlled via either a 3-wire SPI-compatible interface (up to 7MHz) or pin-selectable up/down digital interface. Its internal EEPROM stores wiper position for power-on recall, eliminating external initialization circuitry.
As a 2-terminal variable resistor (W–L configuration), it delivers full-scale wiper-to-end resistance from 70Ω (code 0) to 10.07kΩ (code 1023), with wiper resistance ≤50Ω (VDD ≥ +3V) and <60pF wiper capacitance - enabling stable performance in low-noise analog feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit (1024 positions): Enables fine-grained gain control with 9.8Ω step resolution across 10kΩ range. |
| End-to-End Resistance | 10kΩ ±25% (7.5kΩ–12.5kΩ): Matches standard gain-setting resistor values in op-amp configurations. |
| Variable-Resistor Tempco | 35ppm/°C: Ensures <±0.3% resistance drift over –40°C to +85°C ambient, critical for sensor calibration stability. |
| Wiper Resistance | ≤50Ω at VDD ≥ +3V: Minimizes insertion error in series-feedback applications without requiring buffer amplification. |
| Standby Current | 1.0µA max: Allows integration into battery-powered systems with negligible quiescent drain during idle periods. |
| SPI Clock Frequency | 7MHz max: Supports rapid reconfiguration in closed-loop systems requiring sub-100ns update latency. |
| Nonvolatile Write Time | 12ms busy time: Requires firmware timeout handling but guarantees retention for >50 years at +85°C. |
Pinout & Package
MAX5483ETE+T is housed in a 16-pin, 3mm × 3mm × 0.8mm TQFN package with exposed pad (EP) connected to VSS. Pin 1 is H (not used in variable-resistor mode); pins 2 (W) and 3 (L) form the active variable resistance terminals; SPI/UD (pin 9) selects interface mode; CS (pin 12), DIN(U/D) (pin 10), and SCLK(INC) (pin 11) implement digital control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| H | High terminal | Internally disconnected in MAX5483 variable-resistor mode; must be left unconnected or tied to VDD per datasheet guidance. |
| W | Wiper terminal | Active output node; resistance between W and L varies from 70Ω to 10.07kΩ; requires high-impedance load to avoid nonlinear error. |
| L | Low terminal | Reference node for variable resistance; tied to GND or system reference in most applications. |
| SPI/UD | Interface mode select | Logic-high enables SPI interface; logic-low enables up/down interface - determines required MCU GPIO configuration. |
| CS | Chip select | Active-low enable; controls NV memory store on rising edge when SCLK(INC) = high in up/down mode. |
| DIN(U/D) | Data input / direction control | In SPI mode: serial data input; in up/down mode: sets increment/decrement direction on SCLK(INC) falling edge. |
| SCLK(INC) | Clock / increment control | In SPI mode: synchronous data clock; in up/down mode: wiper step trigger on falling edge. |
| VSS | Negative supply | Must connect exposed pad (EP) to VSS; for single-supply operation, tie to GND; supports dual ±2.5V operation. |
Key Features
| Feature | Design Value |
|---|---|
| Power-on wiper recall | Eliminates boot-time calibration by loading last-stored position from EEPROM - ensures deterministic startup behavior. |
| Ratiometric tempco of 5ppm/°C | Enables ultra-stable voltage-divider ratios in gain-setting networks where H–L and W–L drift track identically. |
| Pin-selectable dual interface | Reduces BOM count: same footprint supports SPI-based microcontrollers or simple GPIO-driven up/down control. |
| 1µA max standby current | Supports always-on sensor nodes with multi-year battery life when wiper position remains static between measurements. |
| 10kΩ end-to-end resistance | Optimized for 1% tolerance matching with standard 1% metal-film resistors in instrumentation amplifier gain stages. |
Applications
| Programmable Gain Amplifier | LCD Contrast Adjustment |
|---|---|
Use Scenario: Setting precise closed-loop gain in medical ECG front-ends where drift must remain <0.1% over 8-hour monitoring sessions. IC Role / Device Role / Timing Role: 2-terminal variable resistor in op-amp feedback path; wiper position updated only during calibration, not real-time. Use Value: 35ppm/°C tempco limits gain drift to <0.03% over industrial temperature range, avoiding recalibration. |
Use Scenario: Adjusting contrast voltage for automotive-grade TFT displays operating from –40°C to +85°C. IC Role / Device Role / Timing Role: Variable resistor between VCC and display bias rail; wiper position set once at factory and recalled on power-up. Use Value: Nonvolatile storage eliminates need for MCU-initiated setup, reducing boot sequence complexity. |
| Pressure Sensor Calibration | Mechanical Potentiometer Replacement |
Use Scenario: Trimming offset in MEMS pressure sensor bridges where long-term stability impacts barometric accuracy. IC Role / Device Role / Timing Role: Zero-scale adjustment element in Wheatstone bridge excitation path; updated only during annual calibration. Use Value: 50,000-cycle EEPROM endurance supports 10+ years of field recalibration without wear-out failure. |
Use Scenario: Replacing panel-mounted mechanical pots in industrial PLC analog I/O modules subject to vibration and dust. IC Role / Device Role / Timing Role: Solid-state replacement for 10kΩ panel pot; controlled digitally via isolated UART-to-SPI bridge. Use Value: Eliminates mechanical wear, contact bounce, and humidity-induced resistance drift inherent in carbon-track pots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5173BRMZ-10 | 3-channel, I²C interface, 10kΩ, 20ppm/°C tempco, 500k-cycle EEPROM endurance | Requires I²C bus and supports simultaneous multi-channel trimming; higher endurance but no up/down interface | Select when multi-pot coordination or longer field life is required; not pin-compatible |
| MCP41HV51-103 | Single-channel, SPI-only, 10kΩ, 100ppm/°C tempco, no nonvolatile memory (requires external EEPROM) | Lacks power-on recall; needs external memory and initialization firmware; lower tempco stability | Select for cost-sensitive designs where wiper position is reloaded at every boot and tempco <50ppm/°C is acceptable |
Compared with AD5173BRMZ-10 and MCP41HV51-103, the MAX5483ETE+T uniquely combines SPI/up-down dual-interface flexibility, guaranteed 5ppm/°C ratiometric tempco for precision ratio-matching, and true power-on recall without external components - making it optimal for space-constrained, drift-critical analog trimming where interface adaptability matters.
Availability
MAX5483ETE+T is available at Aetrix Electronics and suitable for programmable gain amplifiers, LCD contrast control, pressure sensor calibration, and mechanical potentiometer replacement requiring stable component supply across automotive, industrial, and medical device production cycles.
Supply support for MAX5483ETE+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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for precision sensing, power management, and interface applications.
The MAX5481–MAX5484 family was engineered specifically for digitally programmable resistance in analog signal chains where mechanical potentiometers fail due to wear, drift, or environmental stress.
FAQ
What is the maximum operating voltage for MAX5483ETE+T?
The MAX5483ETE+T operates with a single +2.7V to +5.25V supply or dual ±2.5V supplies. Absolute maximum ratings specify VDD to GND ≤ +6.0V and VSS to GND ≥ -3.5V. Exceeding these stresses may cause permanent damage, and operation outside the specified range voids parametric guarantees. The MAX5483ETE+T must be biased within these limits to ensure reliable wiper positioning and EEPROM integrity.
Does MAX5483ETE+T support both SPI and up/down interfaces simultaneously?
No - the MAX5483ETE+T uses pin 9 (SPI/UD) as a hardwired mode selector: logic-high enables the 3-wire SPI interface, while logic-low enables the up/down digital interface. Both interfaces share DIN(U/D) and SCLK(INC) pins but interpret signals differently. The interface must be chosen at PCB layout stage; runtime switching is not supported.
What is the wiper resistance specification for MAX5483ETE+T across its operating range?
The MAX5483ETE+T specifies wiper resistance ≤50Ω when VDD ≥ +3V (per Electrical Characteristics table). At VDD = +2.7V, wiper resistance increases slightly but remains below 65Ω. This low value minimizes insertion loss in series-feedback configurations and avoids significant gain error in op-amp circuits using the MAX5483ETE+T as a programmable resistor.
Can MAX5483ETE+T be used in dual-supply ±2.5V configurations?
Yes - the MAX5483ETE+T explicitly supports dual-supply operation with VDD = +2.5V and VSS = -2.5V, provided VDD – VSS ≤ +5.25V. In this mode, H and L terminals swing from –2.5V to +2.5V, enabling bipolar signal conditioning. The wiper retains full 10-bit resolution and nonvolatile recall, with identical tempco and noise performance as in single-supply mode.
How does the nonvolatile memory in MAX5483ETE+T retain wiper position after power loss?
The MAX5483ETE+T embeds an EEPROM cell that stores the last wiper position written to the nonvolatile register. On power-up, internal POR circuitry automatically copies this value into the volatile wiper latch, positioning the wiper without MCU intervention. Data retention exceeds 50 years at +85°C and 200,000 write cycles are guaranteed - sufficient for lifetime calibration in most field-deployed equipment.
MAX5483ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Rheostat
- Number of Circuits:
- 1
- Number of Taps:
- 1024
- Resistance (Ohms):
- 10k
- Interface:
- SPI, Up/Down (U/D, INC, CS)
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.25V, ±2.5V ~ 5.25V
- Features:
- -
- Tolerance:
- ±25%
- Temperature Coefficient (Typ):
- 35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TQFN (3x3)
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 50
MAX5483ETE+T FAQ
1.How can I place an order for MAX5483ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX5483ETE+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 MAX5483ETE+T reliable?
The price and inventory of MAX5483ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX5483ETE+T is usually 5 days.
3.What payment methods are accepted for MAX5483ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX5483ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX5483ETE+T?
MAX5483ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX5483ETE+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 MAX5483ETE+T?
For technical support, including MAX5483ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX5483ETE+T requirements.
6.How does Aetrix verify that MAX5483ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX5483ETE+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 MAX5483ETE+T meets industry standards.
7.What is the process for return or replacement of MAX5483ETE+T?
All MAX5483ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX5483ETE+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 MAX5483ETE+T part is unused and in its original packaging.
Return procedure for MAX5483ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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