ISL22419 Single Digitally Controlled Potentiometer (XDCP™); Low Noise, Low Power, SPI® Bus, 128 Taps, Wiper Only

ISL22419

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Single Digitally Controlled Potentiometer (XDCP™); Low Noise, Low Power, SPI® Bus, 128 Taps, Wiper Only

Datasheets,
Related Docs
& Simulations

Ordering Information

iBuy direct from Intersil	iBuy direct - out of stock	Request samples
Check distributor inventory	Available in RoHS/Pb-Free

Part No.

Design-In
Status

Temp.

Package

MSL

Price
US $

ISL22419UFU8Z

Active

Ind

8 Ld MSOP

0.95

ISL22419UFU8Z-TK

Active

Ind

8 Ld MSOP T+R

0.95

ISL22419WFU8Z

Active

Ind

8 Ld MSOP

0.95

ISL22419WFU8Z-TK

Active

Ind

8 Ld MSOP T+R

0.95

The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.

MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020

SMD = Standard Microcircuit Drawing

Description

The ISL22419 integrates a single digitally controlled potentiometer (DCP) and non-volatile memory on a monolithic CMOS integrated circuit.

The digitally controlled potentiometer is implemented with a combination of resistor elements and CMOS switches. The position of the wiper is controlled by the user through the SPI serial interface. The potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper. At power-up the device recalls the content of the DCP's IVR to the WR.

The DCP can be used as a voltage divider in a wide variety of applications including control, parameter adjustments, AC measurement and signal processing.

Key Features

128 resistor taps
SPI serial interface
Non-volatile storage of wiper position
Wiper resistance: 70Ω typical @ 3.3V
Shutdown mode
Shutdown current 5μA max
Power supply: 2.7V to 5.5V
50kΩ or 10kΩ total resistance
High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T ≤55°C
8 Lead MSOP
Pb-free plus anneal product (RoHS compliant)

Related Documentation

Application Note(s):
Get Precision Performance from a Digitally Controlled Potentiometer (DCP) Get Precision Performance from a Digitally Controlled Potentiometer (DCP) (Chinese)

Datasheet(s):
Single Digitally Controlled Potentiometer (XDCP™); Low Noise, Low Power, SPI® Bus, 128 Taps, Wiper Only

Technical Brief(s):
Converting a Fixed PWM to an Adjustable PWM

Technical Homepage:
Digitally Controlled Potentiometers (DCPs) and Capacitors (DCCs) Precision Analog Homepage

Parametric Data


# of Devices/ Channels		1

# of Taps		128

Memory Type		Non-Volatile

Bus Interface Type		SPI

Resistance Options (kΩ)		10, 50

V_CC Range (V)		2.7 to 5.5

V_CC (min) (V)		2.7

V_CC (max) (V)		5.5

DCP Dual Supply Range (V)		N/A

DCP Single Supply Range (V)		0 to 5.5

Resistance Taper		Linear

Wiper Current (mA)		3

Wiper Resistance (Ω)		70

Supply Current (μA)		160

Max Operating Temp (°C)		125

End-to-End Tempco (ppm/°C)		50

Middlepoint Ratiometric Tempco (ppm/°C)		4

V_L min. terminal voltage (V)		0

V_H max. terminal voltage (V)		5.5

Features		Voltage Divider - RH connected to Vcc and RL connected to GND

Application Block Diagrams

Related Devices

Parametric Table

	ISL22316		Low Noise, Low Power I²C® Bus, 128 Taps
	ISL22317		Precision Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, I²C™ Bus, 128 Taps
	ISL22319		Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, I<sup>2</sup>C™ Bus, 128 Taps, Wiper Only
	ISL22416		Low Noise, Low Power, SPI® Bus, 128 Taps
	ISL95310		Digitally Controlled Potentiometer (XDCP™)
	ISL95311		Digitally Controlled Potentiometer (XDCP™)
	ISL95710		Digitally Controlled Potentiometer (XDCP™), Terminal Voltage ±2.7V to ±5V, 128 Taps, Up/Down Interface
	ISL95711		Digitally Controlled Potentiometer (XDCP™) Terminal Voltage ±2.7V or ±5V, 128 Taps I²C Serial Interface
	ISL96017		128-Tap DCP, 16kbit EEPROM, and I²C Serial Interface