ISL90842UIV1427Z-TK Intersil, ISL90842UIV1427Z-TK Datasheet

IC POT DGTL QUAD 50K OHM 14TSSOP

ISL90842UIV1427Z-TK

Manufacturer Part Number
ISL90842UIV1427Z-TK
Description
IC POT DGTL QUAD 50K OHM 14TSSOP
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of ISL90842UIV1427Z-TK

Taps
256
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
45 ppm/°C Typical
Memory Type
Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-TSSOP
Resistance In Ohms
50K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ISL90842UIV1427Z-TKTR
Low Noise, Low Power I
The ISL90842 integrates four digitally controlled
potentiometers (DCP) configured as variable resistors on a
monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with
a combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I
Wiper Register (WR) that can be directly written to and read
by the user. The contents of the WR controls the position of
the wiper.
The DCPs can be used as two-terminal variable resistors in
a wide variety of applications including control, parameter
adjustments, and signal processing.
Ordering Information
NOTES:
2
ISL90842UIV1427Z (Notes 1 & 2)
ISL90842WIV1427Z (Notes 1 & 2)
2. Add “-TK” suffix for Tape and Reel.
1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
C bus interface. Each potentiometer has an associated
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
PART NUMBER
®
1
2
C
90842UI27Z
90842WI27Z
Data Sheet
®
PART MARKING
Bus, 256 Taps
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
RESISTANCE OPTION
Quad Digitally Controlled Variable Resistors
50K
10K
(Ω)
Features
• Four variable resistors in one package
• 256 resistor taps - 0.4% resolution
• I
• Wiper resistance: 70Ω typical @ 3.3V
• Standby current <5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ, 10kΩ total resistance
• 14 Lead TSSOP
• Pb-free plus anneal available (RoHS compliant)
Pinout
2
C serial interface
January 16, 2006
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
RW3
GND
RW2
SDA
RH3
SCL
RH2
TEMP RANGE
-40 to +85
-40 to +85
(14 LEAD TSSOP)
(°C)
1
2
3
4
5
6
7
TOP VIEW
ISL90842
14
13
12
11
10
9
8
14 Ld TSSOP (Pb-Free)
14 Ld TSSOP (Pb-Free)
RW0
RH0
VCC
A1
A0
RH1
RW1
ISL90842
PACKAGE
FN8096.1

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ISL90842UIV1427Z-TK Summary of contents

Page 1

... The DCPs can be used as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing. Ordering Information PART NUMBER ISL90842UIV1427Z (Notes 1 & 2) 90842UI27Z ISL90842WIV1427Z (Notes 1 & 2) 90842WI27Z NOTES: 1. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...

Page 2

Functional Diagram SCL SDA INTERFACE A0 A1 Block Diagram INTERFACE SDA SCL A1 A0 Pin Descriptions TSSOP PIN SYMBOL 1 RH3 2 RW3 3 SCL 4 SDA 5 GND 6 RW2 7 RH2 8 RW1 9 RH1 ...

Page 3

Absolute Maximum Ratings Storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Voltage at any digital interface pin with respect to ...

Page 4

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER t DCP wiper response time DCP (Note 8) SERIAL INTERFACE SPECS V A1, A0, SDA, and SCL input buffer IL LOW voltage V A1, A0, SDA, and ...

Page 5

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER t A1 and A0 setup time SU and A0 hold time HD:A SDA vs SCL Timing SCL t SU:STA t HD:STA SDA (INPUT TIMING) SDA ...

Page 6

Typical Performance Curves 160 V =2.7, T=+85°C CC 140 V =2.7, T=-40°C CC 120 100 =5.5, T=-40° =5.5, T=+25° 100 150 TAP POSITION (DECIMAL) FIGURE 1. WIPER RESISTANCE vs ...

Page 7

Typical Performance Curves INPUT OUTPUT TAP POSITION = MID POINT R =9.4K TOTAL FIGURE 7. FREQUENCY RESPONSE (2.2MHz) Principles of Operation The ISL90842 is an integrated circuit incorporating four DCPs with their associated registers, and an I interface providing direct ...

Page 8

The ISL90842 responds with an ACK after recognition of a START condition followed by a valid Identification Byte, and once again after successful receipt of an Address Byte. The ISL90842 also responds with an ACK after receiving a Data Byte ...

Page 9

S SIGNALS T FROM THE A IDENTIFICATION MASTER R BYTE WITH T R/W=0 SIGNAL AT SDA 0 A1A0 SIGNALS FROM THE SLAVE Write Operation A Write operation requires a START condition, followed by a valid ...

Page 10

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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