ISL90841UIV1427Z-TK Intersil, ISL90841UIV1427Z-TK Datasheet

IC POT DGTL QUAD 50K OHM 14TSSOP

ISL90841UIV1427Z-TK

Manufacturer Part Number
ISL90841UIV1427Z-TK
Description
IC POT DGTL QUAD 50K OHM 14TSSOP
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of ISL90841UIV1427Z-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
ISL90841UIV1427Z-TKTR
Low Noise, Low Power I
The ISL90841 integrates four digitally controlled
potentiometers (XDCP) 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.
All four potentiometers have one terminal tied to GND. The
DCPs can be used as a resistor divider or as two-terminal
variable resistors in a wide variety of applications including
control, parameter adjustments, and signal processing.
Ordering Information
NOTES:
2
ISL90841UIV1427Z (Notes 1 & 2)
ISL90841WIV1427Z (Notes 1 & 2)
2. Add “-TK” to 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
Data Sheet
90841UI27Z
90841WI27Z
®
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
Quad Digitally Controlled Potentiometers (XDCP™)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
RESISTANCE OPTION
Features
• Four potentiometers 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
50K
10K
(Ω)
2
C serial interface
February 8, 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
ISL90841
14
13
12
11
10
9
8
14 Ld TSSOP (Pb-Free)
14 Ld TSSOP (Pb-Free)
RW0
RH0
VCC
A1
A0
RH1
RW1
ISL90841
PACKAGE
FN8094.1

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ISL90841UIV1427Z-TK Summary of contents

Page 1

... DCPs can be used as a resistor divider or as two-terminal variable resistors in a wide variety of applications including control, parameter adjustments, and signal processing. Ordering Information PART NUMBER ISL90841UIV1427Z (Notes 1 & 2) 90841UI27Z ISL90841WIV1427Z (Notes 1 & 2) 90841WI27Z 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 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 10 ...

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. SYMBOL PARAMETER I V supply current (volatile CC1 CC write/read current (standby Leakage current, at pins A0, A1, SDA, LkgDig and SCL t DCP wiper ...

Page 5

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER t SDA and SCL fall time F (Note 15) Cb Capacitive loading of SDA or SCL (Note 15) Rpu SDA and SCL bus pull-up resistor off- (Note ...

Page 6

NOTES: 1. Typical values are for T = 25°C and 3.3V supply voltage LSB: [V(R ) – V 255. V 255 incremental voltage when changing from one tap to an adjacent ...

Page 7

Typical Performance Curves 0.2 V =5.5, T=-40°C CC 0.15 V =2.7, T=+25°C CC 0.1 0.05 0 -0.05 -0.1 V =5.5, T=+25°C CC -0.15 V =2.7, T=+85° 100 150 TAP POSITION (DECIMAL) FIGURE 3. DNL vs TAP ...

Page 8

Typical Performance Curves 1.5 1 2.7V 0.5 5.5V 0 -0.5 -1 -1.5 -40 - TEMPERATURE (°C) FIGURE 9. END TO END R % CHANGE vs TOTAL TEMPERATURE FOR 10kΩ ( -15 -25 32 ...

Page 9

Principles of Operation The ISL90841 is an integrated circuit incorporating four DCPs with their associated registers, and an I interface providing direct communication between a host and the potentiometers. DCP Description Each DCP is implemented with a combination of resistor ...

Page 10

SCL SDA START FIGURE 15. VALID DATA CHANGES, START, AND STOP CONDITIONS SCL FROM MASTER SDA OUTPUT FROM TRANSMITTER SDA OUTPUT FROM RECEIVER START FIGURE 16. ACKNOWLEDGE RESPONSE FROM RECEIVER SIGNALS FROM THE MASTER SIGNAL AT SDA SIGNALS FROM THE ...

Page 11

Write Operation A Write operation requires a START condition, followed by a valid Identification Byte, a valid Address Byte, a Data Byte, and a STOP condition. After each of the three bytes, the ISL90841 responds with an ACK. At this ...

Page 12

... 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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