AD5271 Series

256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat

Part	Features	Resistance - Wiper (Typ)	Package / Case	Voltage - Supply Tolerance (Minimum)	Voltage - Supply (Maximum)	Voltage - Supply Tolerance (Maximum)	Voltage - Supply (Minimum)	Tolerance	Configuration	Temperature Coefficient (Typ)	Taper	Number of Circuits	Resistance	Package Width	Package Name	Package Length	Mounting Type	Operating Temperature (Max)	Operating Temperature (Min)	Interface	Number of Taps	Memory Type
Analog Devices Inc./Maxim Integrated AD5271BCPZ-20-RL7	Cascade Pin	35 Ohm	10-VFDFN Exposed Pad CSP	-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	20 kOhm	3 mm	10-LFCSP-WD	3 mm	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile
Analog Devices Inc./Maxim Integrated AD5271BRMZ-20	Cascade Pin	35 Ohm		-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	20 kOhm	3 mm	10-MSOP 10-TFSOP	0.118 in	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile
Analog Devices Inc./Maxim Integrated AD5271BRMZ-100-RL7	Cascade Pin	35 Ohm		-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	100 kOhm	3 mm	10-MSOP 10-TFSOP	0.118 in	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile
Analog Devices Inc./Maxim Integrated AD5271BRMZ-100	Cascade Pin	35 Ohm		-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	100 kOhm	3 mm	10-MSOP 10-TFSOP	0.118 in	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile
Analog Devices Inc./Maxim Integrated AD5271BRMZ-20-RL7	Cascade Pin	35 Ohm		-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	20 kOhm	3 mm	10-MSOP 10-TFSOP	0.118 in	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile
Analog Devices Inc./Maxim Integrated AD5271BCPZ-100-RL7	Cascade Pin	35 Ohm	10-VFDFN Exposed Pad CSP	-2.5 V	5.5 V	2.75 V	2.7 V	1 %	Rheostat	5 ppm/°C	Linear	1	100 kOhm	3 mm	10-LFCSP-WD	3 mm	Surface Mount	125 °C	-40 °C	SPI	256	Non-Volatile

Catalog

256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat

Description

TheAD5270/AD5271 are single-channel, 1024-/256-position digital rheostats that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package.The AD5270/AD5271 ensure less than 1% end-to-end resistor tolerance error and offer 50-times programmable (50-TP) memory.The guaranteed industry leading low resistor tolerance error feature simplifies open-loop applications as well as precision calibration and tolerance matching applications.The AD5270/AD5271 device wiper settings are controllable through the SPI digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. The AD5270/AD5271 do not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the resistance position (analogous to placing epoxy on a mechanical trimmer).The AD5270/AD5271 are available in a 3 mm × 3 mm, 10-lead LFCSP package and in a 10-lead MSOP package. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.ApplicationsMechanical potentiometer replacementsOp-amp: variable gain controlInstrumentation: gain, offset adjustmentProgrammable voltage-to-current conversionsProgrammable filters, delays, time constantsProgrammable power supplySensor calibration