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ISL23710 Datasheet PDF - Intersil Corporation

Part Number ISL23710
Description Taps Up/Down Interface
Manufacturers Intersil Corporation 
Logo Intersil Corporation Logo 

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ISL23710 datasheet, circuit
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ISL23710
®
Volatile Digitally Controlled Potentiometer (XDCP™)
Data Sheet
August 22, 2005
FN6126.0
Terminal Voltage ±3V or ±5V, 128 Taps
Up/Down Interface
The Intersil ISL23710 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, and a control section. The wiper position is
controlled by a Up/Down interface.
The potentiometer is implemented by a resistor array
composed of 127 resistive elements and a wiper switching
network. Between each element and at either end are tap
points accessible to the wiper terminal. The position of the
wiper element is controlled by the CS, U/D, and INC inputs.
The wiper register is volatile and is reset to midscale on
power up. The wiper position can be locked while powered
up to prevent inadvertent changes.
The device can be used as a three-terminal potentiometer or
as a two-terminal variable resistor in a wide variety of
applications including:
• Industrial and Automotive Control
• Parameter and Bias Adjustments
• Amplifier Bias and Control
Ordering Information
TEMP
PART NUMBER RESISTANCE RANGE
(BRAND)
OPTION () (°C)
PKG.
PACKAGE DWG. #
ISL23710WIU10Z
10K -40 to +85 10 Ld MSOP M10.118
(AOG) (Notes 1, 2)
(Pb-Free)
ISL23710UIU10Z
(AOF) (Notes 1, 2)
50K -40 to +85 10 Ld MSOP M10.118
(Pb-Free)
NOTES:
1. Add “-T” suffix for tape and reel.
2. 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. 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.
Features
• Up/Down Interface with Chip Select Enable
• DCP Terminal Voltage from ±2.7V to ±5V
• 127 Resistive Elements
- Typical RTOTAL tempco ±50ppm/°C
- Ratiometric tempco ±4ppm/°C
- End to end resistance range ±20%
- Wiper resistance = 70typ at VCC = 3.3V
• Low Power CMOS
- V- = -2.7V to -5.5V
- VCC = 2.7V to 5.5V
- Active current, 1mA max
- Standby current, 500nA max
• RTOTAL Values = 10kΩ, 50k
• Volatile Wiper Storage with Wiper Locking
• Packages
- 10 Ld MSOP
• Pb-Free Plus Anneal Available (RoHS Compliant)
Pinout
ISL23710
(10 LD MSOP)
TOP VIEW
U/D
V-
GND
CS
NC
1
2
3
4
5
10 INC
9 VCC
8 RL
7 RW
6 RH
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil, Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

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ISL23710 equivalent
ISL23710
NOTES:
1. Typical values are for TA = 25°C and 3.3V supply voltage.
2. LSB: [V(RW)127 – V(RW)0]/127. V(RW)127 and V(RW)0 are V(RW) for the DCP register set to 7F hex and 00 hex respectively. LSB is the
incremental voltage when changing from one tap to an adjacent tap.
3. ZS error = V(RW)0/LSB.
4. FS error = [V(RW)127 – VCC]/LSB.
5. DNL = [V(RW)i – V(RW)i-1]/LSB-1, for i = 1 to 127. i is the DCP register setting.
6. INL = V(RW)i – (i • LSB – V(RW)0) for i = 1 to 127.
7.
TCV
=
[---M----M-a----xa----(x--V--(--V-(--R-(---R-W----W--)--i--))--i-+-)----M----M--i--n-i--n(---V-(--V-(---R-(--R--W---W---)--i-)-)-i-]-)-----2--
x
----1---0----6-----
125 °C
Max( ) is the maximum value of the wiper voltage and Min ( ) is the minimum value of the wiper voltage over the temperature range.
8. MI = |R127 – R0| /127. R127 and R0 are the measured resistances for the DCP register set to 7F hex and 00 hex respectively.
9. Roffset = R0/MI, when measuring between RW and RL.
Roffset = R127/MI, when measuring between RW and RH.
10. RDNL = (Ri – Ri-1)/MI, for i = 16 to 127d.
11. RINL = [Ri – (MI • i) – R0]/MI, for i = 16 to 127d.
12.
TCR
=
[---M-[---M-a----xa----(x--R--(--R-i--)--i-+-)----M----M--i-n--i--n(---R-(--R-i--)--i-]-)--]⁄---2-
×
----1---0----6-----
125 °C
Max( ) is the maximum value of the resistance and Min ( ) is the minimum value of the resistance over the temperature range.
13. This parameter is not 100% tested.
Symbol Table
WAVEFORM
INPUTS
Must be steady
OUTPUTS
Will be steady
May change from Low to High
May change from High to Low
Will change from Low to High
Will change from High to Low
Don’t Care: Changes Allowed
N/A
Changing: State Not Known
Center Line is High Impedance
5 FN6126.0
August 22, 2005

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