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ISL23418 の電気的特性と機能

ISL23418のメーカーはIntersil Corporationです、この部品の機能は「Low Voltage Digitally Controlled Potentiometer」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL23418
部品説明 Low Voltage Digitally Controlled Potentiometer
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL23418 Datasheet, ISL23418 PDF,ピン配置, 機能
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Single, 128-Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP™)
ISL23418
The ISL23418 is a volatile, low voltage, low noise, low power,
SPI™ bus, 128 taps, single digitally controlled potentiometer
(DCP), which integrates DCP core, wiper switches, and control
logic 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
bus interface. The potentiometer has an associated volatile
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. When powered on, the ISL23418 wiper always
commences at mid-scale (64-tap position).
The low voltage, low power consumption, and small package
size of the ISL23418 make it an ideal choice for use in battery
operated equipment. The ISL23418 has a VLOGIC pin allowing
down to 1.2V bus operation, independent from the VCC value.
This allows for low logic levels to be connected directly to the
ISL23418 without passing through a voltage level shifter.
The DCP can be used as a three-terminal potentiometer or as a
two-terminal variable resistor in a wide variety of applications
including control, parameter adjustments, and signal
processing.
Related Literature
• See ISL23415, “Single, Low Voltage Digitally Controlled
Potentiometer (XDCP™)”
Features
• 128 Resistor Taps
• SPI Serial Interface
- No Additional Level Translator for Low Bus Supply
- Daisy Chaining of Multiple DCP
• Wiper Resistance: 70Ω Typical @ VCC = 3.3V
• Shutdown Mode: Forces DCP into End-to-end Open Circuit;
RW Shorted to RL Internally
• Power-on Preset to Mid-scale (64-tap Position)
• Shutdown and Standby Current <2.8µA Max
• Power Supply
- VCC = 1.7V to 5.5V Analog Power Supply
- VLOGIC = 1.2V to 5.5V SPI Bus/Logic Power Supply
• DCP Terminal Voltage from 0V to VCC
• 10kΩ, 50kΩ or 100kΩ Total Resistance
• Extended Industrial Temperature Range: -40°C to +125°C
• 10 Ld MSOP or 10 Ld µTQFN Packages
• Pb-free (RoHS compliant)
Applications
• Power Supply Margining
• RF Power Amplifier Bias Compensation
• LCD Bias Compensation
• Gain Adjustment in Battery Powered Instruments
• Portable Medical Equipment Calibration
10000
8000
6000
4000
2000
00 25 50 75 100 125
TAP POSITION (DECIMAL)
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP
POSITION, 10k
VREF
RH1
ISL23418
RW1
RL1
-
+
ISL28114
VREF_M
FIGURE 2. VREF ADJUSTMENT
August 3, 2011
FN7901.0
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011. All Rights Reserved
XDCP is a trademark of Intersil Americas Inc. Intersil (and design) is a trademark owned by Intersil Corporation
or one of its subsidiaries .All other trademarks mentioned are the property of their respective owners.
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ISL23418 pdf, ピン配列
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ISL23418
Ordering Information
PART NUMBER
(Note 5)
PART
MARKING
RESISTANCE
OPTION
(k)
TEMP. RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL23418TFUZ (Notes 1, 3)
3418T
100 -40 to +125 10 Ld MSOP
M10.118
ISL23418UFUZ (Notes 1, 3)
3418U
50 -40 to +125 10 Ld MSOP
M10.118
ISL23418WFUZ (Notes 1, 3)
3418W
10 -40 to +125 10 Ld MSOP
M10.118
ISL23418TFRUZ-T7A (Notes 2, 4)
HL
100
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
ISL23418TFRUZ-TK (Notes 2, 4)
HL
100
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
ISL23418UFRUZ-T7A (Notes 2, 4)
HK
50
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
ISL23418UFRUZ-TK (Notes 2, 4)
HK
50
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
ISL23418WFRUZ-T7A (Notes 2, 4)
HJ
10
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
ISL23418WFRUZ-TK (Notes 2, 4)
HJ
10
-40 to +125 10 Ld 2.1x1.6 µTQFN
L10.2.1x1.6A
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.
2. Please refer to TB347 for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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.
4. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate -
e4 termination finish, which is 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.
5. For Moisture Sensitivity Level (MSL), please see device information page for ISL23418. For more information on MSL please see Tech Brief TB363.
3 FN7901.0
August 3, 2011
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ISL23418 電子部品, 半導体
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ISL23418
Analog Specifications VCC = 2.7V to 5.5V, VLOGIC = 1.2V to 5.5V over recommended operating conditions unless otherwise stated.
Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
(Note 20)
TYP
(Note 8)
MAX
(Note 20)
UNITS
TCR Resistance Temperature Coefficient W option; Wiper register set between 220 ppm/°C
(Note 19)
32 hex and 7F hex
U option; Wiper register set between
32 hex and 7F hex
100 ppm/°C
T option; Wiper register set between
32 hex and 7F hex
75 ppm/°C
Operating Specifications VCC = 2.7V to 5.5V, VLOGIC = 1.2V to 5.5V over recommended operating conditions unless otherwise
stated. Boldface limits apply over the operating temperature range, -40°C to +125°C.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
(Note 20) (Note 8) (Note 20) UNITS
ILOGIC VLOGIC Supply Current (Write/Read)
ICC VCC Supply Current (Write/Read)
ILOGIC SB VLOGIC Standby Current
VLOGIC = 5.5V, VCC = 5.5V,
fSCK = 5MHz (for SPI active read and write)
VLOGIC = 1.2V, VCC = 1.7V,
fSCK = 1MHz (for SPI active read and write)
VLOGIC = 5.5V, VCC = 5.5V
VLOGIC = 1.2V, VCC = 1.7V
VLOGIC = VCC = 5.5V,
SPI interface in standby
1.5 mA
30 µA
100 µA
10 µA
1.3 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
0.4 µA
ICC SB VCC Standby Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
1.5 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
1 µA
ILOGIC SHDN VLOGIC Shutdown Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
1.3 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
0.4 µA
ICC SHDN VCC Shutdown Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
1.5 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
1 µA
ILkgDig Leakage Current, at Pins CS, SDO, SDI, Voltage at pin from GND to VLOGIC
SCK
-0.4 <0.1 0.4 µA
tDCP Wiper Response Time
W option; CS rising edge to wiper new position,
from 10% to 90% of final value.
0.4
µs
U option; CS rising edge to wiper new position,
from 10% to 90% of final value.
1.5
µs
T option; CS rising edge to wiper new position,
from 10% to 90% of final value.
3.5
µs
tShdnRec DCP Recall Time from Shutdown Mode CS rising edge to wiper recalled position and
RH connection
1.5
µs
VCC, VLOGIC VCC, VLOGIC Ramp Rate
Ramp
Ramp monotonic at any level
0.01
50 V/ms
6 FN7901.0
August 3, 2011
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共有リンク

Link :


部品番号部品説明メーカ
ISL23415

Low Voltage Digitally Controlled Potentiometer

Intersil Corporation
Intersil Corporation
ISL23418

Low Voltage Digitally Controlled Potentiometer

Intersil Corporation
Intersil Corporation


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