AD5174 Series

Single-Channel, 1024-Position, Digital Rheostat with SPI interface and 50-TP Memory

Catalog

Single-Channel, 1024-Position, Digital Rheostat with SPI interface and 50-TP Memory

Part	Memory Type	Mounting Type	Taper	Number of Taps	Number of Circuits	Operating Temperature [Max]	Operating Temperature [Min]	Supplier Device Package	Configuration	Resistance (Ohms)	Features	Package / Case	Package / Case [x]	Package / Case [x]	Resistance - Wiper (Ohms) (Typ)	Voltage - Supply [Min]	Voltage - Supply [Max]	Tolerance	Temperature Coefficient (Typ)	Interface
Analog Devices AD5174BRMZ-10	Non-Volatile	Surface Mount	Linear	1024	1	125 °C	-40 °C	10-MSOP	Rheostat	10k	Cascade Pin	10-MSOP 10-TFSOP	3 mm	0.118 in	35 Ohms	-2.5 V 2.7 V	2.75 V 5.5 V	15 %	35 ppm/°C	SPI
Analog Devices AD5174BRMZ-10-RL7	Non-Volatile	Surface Mount	Linear	1024	1	125 °C	-40 °C	10-MSOP	Rheostat	10k	Cascade Pin	10-MSOP 10-TFSOP	3 mm	0.118 in	35 Ohms	-2.5 V 2.7 V	2.75 V 5.5 V	15 %	35 ppm/°C	SPI
Analog Devices AD5174BCPZ-10-RL7	Non-Volatile	Surface Mount	Linear	1024	1	125 °C	-40 °C	10-LFCSP-WD (3x3)	Rheostat	10k	Cascade Pin	10-VFDFN Exposed Pad CSP			35 Ohms	-2.5 V 2.7 V	2.75 V 5.5 V	15 %	35 ppm/°C	SPI

Catalog

Single-Channel, 1024-Position, Digital Rheostat with SPI interface and 50-TP Memory

Key Features

• Single-channel, 1024-position resolution

• 10 kΩ nominal resistance

• 50-times programmable (50-TP) wiper memory

• Rheostat mode temperature coefficient: 35 ppm/°C

• 2.7 V to 5.5 V single-supply operation

• ±2.5 V to ±2.75 V dual-supplyoperation for ac or bipolar operations

• SPI-compatible interface

• Wiper setting and memory readback

• Power on refreshed from memory

• Resistor Tolerance Stored in Memory

• Thin LFCSP, 10-lead,3 mm x 3 mm x 0.8 mm package

• Compact MSOP, 10-lead,3 mm × 4.9 mm × 1.1 mm package

Description

The AD5174 is a single-channel, 1024-position digital rheostat that combines industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package.This device supports both dual-supply operation at ±2.5 V to ±2.75 V and single-supply operation at 2.7 V to 5.5 V and offers 50-times programmable (50-TP) memory.The AD5174 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 AD5174 does 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 AD5174 is available in a 3 mm × 3 mm 10-lead LFCSP package and in a 10-lead MSOP package. The part is guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.ApplicationsMechanical rheostat replacementsOp-amp: variable gain controlInstrumentation: gain, offset adjustmentProgrammable voltage-to-current conversionsProgrammable filters, delays, time constantsProgrammable power supplySensor calibration