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DS3901
Triple, 8-Bit NV Variable Resistor with Dual Settings and User EEPROM
Low Cost, Small Size, and a Rich Feature Set, Ideal Replacement for Conventional Mechanical-Trimming Resistors, Specifically in Module Applications
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Status
Active: In Production.
Description
The DS3901 is a triple, 8-bit nonvolatile (NV) variable resistor. Each of the resistors has two setting registers, which are selectable by software or by pin configuration. The selected register determines the value of the variable resistor. Additionally, all three resistors have a high-impedance setting. Resistor R0 has the additional flexibility of allowing an external shunt resistor to provide increased dynamic range. Internal address settings allow the DS3901 slave address to be programmed to one of 128 possible addresses. The DS3901 also features an optional password-protection scheme that allows the protection of sensitive data.
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Data Sheet
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Key Features
- Three 256-Position Linear Digital Resistors
- Full-Scale Resistances 50kΩ, 30kΩ, 20kΩ
- Dual NV Settings for Each Resistor
- Low Temperature-Coefficient Resistors
- I²C Serial Interface
- Wide Operating Voltage (2.4V to 5.5V)
- Two-Level Password Write Protection
- 232 Bytes of User EEPROM
- Programmable Slave Address
- -40°C to +95°C Operating Temperature Range
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Key Specifications:
| Digital Potentiometers |
| Part Number |
Taper |
POTs |
Control Interface |
Wiper Memory |
Steps |
REND-TO-END
(kΩ) |
Res. Tol.
(%) |
Temp. Coeff.
(ppm/°C) |
Wiper Resistance
(Ω) |
ICC @5V
(µA) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| typ |
typ |
max |
max w/pins |
See Notes |
| DS3901 |
Linear |
3 |
I2C |
Non-Volatile |
256 |
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20 |
50 |
250 |
250 |
33.4 |
$0.92 @1k |
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See All Digital Potentiometers (129)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| DS3901E+
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Active |
TSSOP;14 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0113 (PDF)
Use pkgcode/variation: U14+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS3901E+T&R
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Active |
TSSOP;14 pin;33.4 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0113 (PDF)
Use pkgcode/variation: U14+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| DS3903 |
Triple 128-Position Nonvolatile Digital Potentiometer |
| DS3902 |
Dual, NV, Variable Resistors with User EEPROM |
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Information Index
Rev 0;
2006-05-22
This page last modified: 2010-05-24
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