AD5112 Single Channel, 64-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer

The AD5112 provides a nonvolatile solution for 64-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the A, B, and W pins. The low resistor tolerance, low nominal temperature coefficient and high bandwidth simplify open-loop applications, as well as tolerance matching applications.

The new low wiper resistance feature minimizes the wiper resistance in the extremes of the resistor array to only 45 Ω, typical.

The wiper settings are controllable through an I2C-compatible digital interface that is also used to readback the wiper register and EEPROM content. Resistor tolerance is stored within EEPROM, roviding an end-to-end tolerance accuracy of 0.1%.

The AD5112 is available in a 2 mm × 2 mm LFCSP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.

Applications

Mechanical potentiometer replacement
Portable electronics level adjustment
Audio volume control
Low resolution DAC
LCD panel brightness and contrast control
Programmable voltage to current conversion
Programmable filters, delays, time constants
Feedback resistor programmable power supply
Sensor calibration

Features and Benefits

Nominal resistor tolerance error: ±8% maximum
Wiper current: ±6 mA
Rheostat mode temperature coefficient: 35 ppm/°C
Low power consumption: 2.5 μA max @ 2.7 V and 125°C
Wide bandwidth: 4 MHz (5 kΩ option)
Power-on EEPROM refresh time
< 50 μs

50-year typical data retention at 125°C
1 million write cycles
2.3 V to 5.5 V analog supply operation
1.8 V to 5.5 V logic supply operation
Wide operating temperature:
−40°C to +125°C
Thin, 2 mm × 2 mm × 0.55 mm,
8-lead LFCSP package

Digital to Analog Converters

Digital Potentiometers

IBIS Models

AD5110 IBIS Model .IBS

Data Sheets

Document	note
AD5110/AD5112/AD5114: Single-Channel, 128-/64-/32-Position, I2C, ±8% Resistor Tolerance, Nonvolatile Digital Potentiometer Datasheet (Rev. B)	PDF 517 kB

Application Notes

Document	note
AN-1291: Digital Potentiometers: Frequently Asked Questions (Rev. A)	PDF 805 kB

User Guides

Document	note
UG-378: Overview of AD5110/AD5112/AD5114 Connections and Functionality	PDF 149 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 1000+	RoHS
AD5112BCPZ10-1-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y
AD5112BCPZ10-500R7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	OTH 500	-40 to 125C	0.68	Y
AD5112BCPZ10-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y
AD5112BCPZ5-1-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y
AD5112BCPZ5-500R7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	OTH 500	-40 to 125C	0.68	Y
AD5112BCPZ5-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y
AD5112BCPZ80-1-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y
AD5112BCPZ80-500R7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	OTH 500	-40 to 125C	0.68	Y
AD5112BCPZ80-RL7 Production	8 ld LFCSP (2x2, w/1.6 x1.0 ep)	REEL 3000	-40 to 125C	0.68	Y