DS3930：Hex Nonvolatile Potentiometer with I/O and Memory

The DS3930 contains six 256-position nonvolatile (NV) potentiometers, 64 bytes of NV user EEPROM memory, and four programmable NV I/O pins. The six potentiometers all share a common low side. The potentiometers are separated into two groups of three 50kΩ potentiometers in parallel. Each group of three potentiometers shares a common high side and forms an equivalent resistance of 16.6kΩ (three 50kΩ potentiometers in parallel).

Key Features

Six 256-Position NV Potentiometers
Four General-Purpose NV I/O Pins
64 Bytes of User EEPROM Memory
0 to 5.5V on Any Potentiometer Terminal, Independent of VCC
All Six Potentiometers Share a Common Low Side
Potentiometers Separated into Two Groups of Three Potentiometers, Each Sharing a Common High Side
2-Wire Serial Interface
Wide Supply Range (2.7V to 5.5V)
Up to Eight DS3930s Can Share the Same 2-Wire Bus

DS3930: Typical Operating Circuit

Applications/Uses

Fiber Optic Transceiver Modules
Mobile Phones and PDAs
Portable Electronics
Power Supply Calibration
Radio Tuners
RF Transceivers
Small, Low-Cost Replacement for Mechanical Potentiometers Features
Voltage References

DataSheet

title	Download file
DS3930 Data Sheet	DS3930.pdf

Parametrics

Part Number	Taper	POTs	Control Interface	Wiper Memory	Steps	R_END-TO-END (kΩ)	Res. Tol. (%)	Temp. Coeff. (ppm/°C)	Wiper Resistance (Ω)	I_CC @5V (µA)	Package/Pins	Budgetary Price
Part Number	Taper	POTs	Control Interface	Wiper Memory	Steps	R_END-TO-END (kΩ)	Res. Tol. (%)	typ	typ	max	Package/Pins	See Notes
DS3930	Linear	6	2-Wire Addressable	Non-Volatile	256	16.6	20	250	400	350	TSSOP/20	$2.03 @1k

Quality and Environmental Data

DS3930.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
DS3930E+	Active		TSSOP,;20 pin;45.2 mm²	-40°C to +85°C	Lead Free
DS3930E+T&R	Active		TSSOP,;20 pin;45.2 mm²	-40°C to +85°C	Lead Free
DS3930E/T&R	No Longer Available	DS3930E+T&R	TSSOP,;20 pin;45.2 mm²	-40°C to +85°C	No