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DS3903
Triple 128-Position Nonvolatile Digital Potentiometer
Lowest Cost Nonvolatile Triple Potentiometer Ideal for Automating Power-Supply Calibration Eliminates Manual Factory Calibration Costs
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Status
Active: In Production.
Description
The DS3903 contains three nonvolatile (NV) low temperature coefficient digital potentiometers, which can be accessed through a 2-wire bus. The DS3903 operates in both 3V and 5V systems, and it features a write-protect pin that can lock the positions of the potentiometers. An address pin allows two DS3903s to be placed on the same 2-wire bus.
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Data Sheet
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Key Features
- Three 128-Position Linear Potentiometers (Two 10kΩ, One 100kΩ)
- NV Wiper Storage
- Low End-to-End Temperature Coefficient
- Operates on an Industry-Standard 2-Wire Bus
- Write-Protect Pin
- Supply Range: 3V or 5V
- Operating Temperature Range: -40°C to +85°C
- Packaging: 20-Pin TSSOP
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Applications/Uses
- A Small and Low-Cost Replacement for Mechanical Potentiometers
- Fiber Optic Transceiver Modules
- Mobile Phones and PDAs
- Portable Electronics
- Power Supply Calibration
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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 |
| DS3903 |
Linear |
3 |
2-Wire Addressable |
Non-Volatile |
128 |
10+10+90 |
20 |
300 |
250 |
250 |
45.2 |
$0.95 @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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Notes |
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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| DS3903E-020
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10k/100kohms |
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Active |
TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| DS3903E-020+
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10k/100kohms |
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Active |
TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS3903E-020+T&R
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10k/100kohms |
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Active |
TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| DS3903E-020/T&R
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10k/100kohms |
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Active |
TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| DS3903E-020/W
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Active |
TSSOP;20 pin;45.2 mm²
Outline Drawing:21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
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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More Information
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Information Index
Rev 1;
2002-08-09
This page last modified: 2010-01-27
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