AD5242 Series

Dual-Channel, I2C Compatible, 256 Position, Digital Potentiometer

Catalog

Dual-Channel, I2C Compatible, 256 Position, Digital Potentiometer

Part	Operating Temperature [Min]	Operating Temperature [Max]	Number of Taps	Resistance (Ohms)	Resistance - Wiper (Ohms) (Typ)	Features	Mounting Type	Number of Circuits	Supplier Device Package	Memory Type	Interface	Taper	Package / Case [x]	Package / Case	Package / Case [y]	Temperature Coefficient (Typ)	Configuration	Voltage - Supply [Min]	Voltage - Supply [Max]	Tolerance	Resistance (Ohms)
Analog Devices AD5242BRU1M	-40 °C	105 ░C	256	1M	60 Ohms	Selectable Address	Surface Mount	2	16-TSSOP	Volatile	I2C	Linear	0.173 in	16-TSSOP	4.4 mm	30 ppm/°C	Potentiometer	-2.3 V 2.7 V	2.7 V 5.5 V
Analog Devices AD5242BRZ10	-40 °C	105 ░C	256	10k	60 Ohms	Selectable Address	Surface Mount	2	16-SOIC	Volatile	I2C	Linear	0.154 in	16-SOIC	3.9 mm	30 ppm/°C	Potentiometer	-2.3 V 2.7 V	2.7 V 5.5 V	30 %
Analog Devices AD5242BRU1M-REEL7	-40 °C	105 ░C	256	1M	60 Ohms	Selectable Address	Surface Mount	2	16-TSSOP	Volatile	I2C	Linear	0.173 in	16-TSSOP	4.4 mm	30 ppm/°C	Potentiometer	-2.3 V 2.7 V	2.7 V 5.5 V
Analog Devices AD5242BRU10-REEL7	-40 °C	105 ░C	256	10k	60 Ohms	Selectable Address	Surface Mount	2	16-TSSOP	Volatile	I2C	Linear	0.173 in	16-TSSOP	4.4 mm	30 ppm/°C	Potentiometer	-2.3 V 2.7 V	2.7 V 5.5 V	30 %
Analog Devices AD5242BRUZ100	-40 °C	105 ░C	256		60 Ohms	Selectable Address	Surface Mount	2	16-TSSOP	Volatile	I2C	Linear	0.173 in	16-TSSOP	4.4 mm	30 ppm/°C	Potentiometer	-2.3 V 2.7 V	2.7 V 5.5 V		100 kOhms

Catalog

Dual-Channel, I2C Compatible, 256 Position, Digital Potentiometer

Key Features

• 256 positions

• 10 kΩ, 100 kΩ, 1 MΩ

• Low temperature coefficient: 30 ppm/°C

• Single-supply 2.7 V to 5.5 V or dual-supply ±2.7 V for ac or bipolar operation

• Internal power on midscale preset

• I2C-compatible interface with readback capability

• Extra programmable logic outputs

• Self contained shutdown feature

• Extended temperature range: −40°C to +105°C

Description

TheAD5241/AD5242 provide a single-/dual-channel, 256-position, digitally controlled variable resistor (VR) device. These devices perform the same electronic adjustment function as a potentiometer, trimmer, or variable resistor. Each VR offers a completely programmable value of resistance between the A terminal and the wiper, or the B terminal and the wiper. For the AD5242, the fixed A-to-B terminal resistance of 10 kΩ, 100 kΩ, or 1 MΩ has a 1% channel-to-channel matching tolerance. The nominal temperature coefficient of both parts is 30 ppm/°C.Wiper position programming defaults to midscale at system power on. When powered, the VR wiper position is programmed by an I2C-compatible, 2-wire serial data interface. Both parts have two extra programmable logic outputs available that enable users to drive digital loads, logic gates, LED drivers, and analog switches in their system.The AD5241 / AD5242 are available in surface-mount, 14-lead SOIC and 16-lead SOIC packages and, for ultracompact solutions, 14-lead TSSOP and 16-lead TSSOP packages. All parts are guaranteed to operate over the extended temperature range of −40°C to +105°C.ApplicationsMultimedia, video, and audioCommunicationsMechanical potentiometer replacementInstrumentation: gain, offset adjustmentProgrammable voltage-to-current conversionLine impedance matching