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ISL23425 の電気的特性と機能

ISL23425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 ISL23425
部品説明 Low Voltage Digitally Controlled Potentiometer
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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ISL23425 Datasheet, ISL23425 PDF,ピン配置, 機能
www.DataSheet.co.kr
Dual, 256-Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP™)
ISL23425
The ISL23425 is a volatile, low voltage, low noise, low power,
256-tap, dual digitally controlled potentiometer (DCP) with an
SPI Bus™ interface. It integrates two DCP cores, wiper switches
and control logic on a monolithic CMOS integrated circuit.
Each digitally controlled potentiometer is implemented with a
combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
SPI bus interface. Each potentiometer has an associated
volatile Wiper Register (WRi, i = 0, 1) that can be directly written
to and read by the user. The contents of the WRi controls the
position of the wiper. When powered on, the wiper of each DCP
will always commence at mid-scale (128 tap position).
The low voltage, low power consumption, and small package
of the ISL23425 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23425 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 ISL23425 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.
Applications
• Power supply margining
• Trimming sensor circuits
• Gain adjustment in battery powered instruments
• RF power amplifier bias compensation
Features
• Two potentiometers per package
• 256 resistor taps
• 10kΩ, 50kΩ or 100kΩ total resistance
• SPI serial interface
- No additional level translator for low bus supply
- Daisy Chaining of multiple DCPs
• Maximum supply current without serial bus activity
(standby)
- 4µA @ VCC and VLOGIC = 5V
- 1.7µA @ VCC and VLOGIC = 1.7V
• Shutdown Mode
- Forces the DCP into an end-to-end open circuit and RWi is
connected to RLi internally
- Reduces power consumption by disconnecting the DCP
resistor from the circuit
• Power supply
- VCC = 1.7V to 5.5V analog power supply
- VLOGIC = 1.2V to 5.5V SPI bus/logic power supply
• Wiper resistance: 70Ω typical @ VCC = 3.3V
• Power-on preset to mid-scale (128 tap position)
• Extended industrial temperature range: -40°C to +125°C
• 14 Ld TSSOP or 16 Ld µTQFN packages
• Pb-free (RoHS compliant)
10000
8000
6000
4000
2000
0
0 64 128 192 256
TAP POSITION (DECIMAL)
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP
POSITION, 10kDCP
VREF
RH1
1 DCP
OF
ISL23325
RW1
RL1
-
+
ISL28114
VREF_M
FIGURE 2. VREF ADJUSTMENT
June 20, 2011
FN7873.0
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
Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners
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1 Page





ISL23425 pdf, ピン配列
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ISL23425
Ordering Information
PART NUMBER
(Note 5)
PART
MARKING
RESISTANCE
OPTION
(k)
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL23425TFVZ (Notes 1, 3)
23425 TFVZ
100 -40 to +125 14 Ld TSSOP
M14.173
ISL23425UFVZ (Notes 1, 3)
23425 UFVZ
50 -40 to +125 14 Ld TSSOP
M14.173
23425WFVZ (Notes 1, 3)
23425 WFVZ
10 -40 to +125 14 Ld TSSOP
M14.173
ISL23425TFRUZ-T7A (Notes 2, 4)
GBJ
100
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
ISL23425TFRUZ-TK (Notes 2, 4)
GBJ
100
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
ISL23425UFRUZ-T7A (Notes 2, 4)
GBH
50
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
ISL23425UFRUZ-TK (Notes 2, 4)
GBH
50
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
ISL23425WFRUZ-T7A (Notes 2, 4)
GBG
10
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
ISL23425WFRUZ-TK (Notes 2, 4)
GBG
10
-40 to +125 16 Ld 2.6x1.8 µTQFN
L16.2.6x1.8A
NOTES:
1. Add “-TK” suffix for 1k unit or “-T7A” suffix for 250 unit Tape and Reel options. 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 ISL23425. For more information on MSL please see techbrief TB363.
3 FN7873.0
June 20, 2011
Datasheet pdf - http://www.DataSheet4U.net/


3Pages


ISL23425 電子部品, 半導体
www.DataSheet.co.kr
ISL23425
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
(Note 19)
W option; Wiper register set between 32
hex and FF hex
170 ppm/°C
U option; Wiper register set between
32 hex and FF hex
80 ppm/°C
T option; Wiper register set between
32 hex and FF hex
50 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
(Note 20)
TYP MAX
(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
2 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
0.5 µA
ICC SB VCC Standby Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
2 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
1.2 µA
ILOGIC
SHDN
VLOGIC Shutdown Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
2 µA
0.5 µA
ICC SHDN VCC Shutdown Current
VLOGIC = VCC = 5.5V,
SPI interface in standby
2 µA
VLOGIC = 1.2V, VCC = 1.7V,
SPI interface in standby
1.2 µA
ILkgDig
tDCP
Leakage Current, at Pins CS, SDO, SDI, SCK Voltage at pin from GND to VLOGIC
Wiper Response Time
CS rising edge to the new position of the
wiper (changes from 10% to 90% FS)
W, U, T options specified top to bottom
-0.4
<0.1
0.4
1.5
3.5
0.4 µA
µs
µs
µs
tShdnRec DCP Recall Time from Shutdown Mode CS rising edge to wiper recalled position 1.5 µs
and RH connection
VCC, VLOGIC VCC ,VLOGIC Ramp Rate (Note 21)
Ramp
Ramp monotonic at any level
0.01
50 V/ms
Serial Interface Specification For SCK, SDI, SDO, CS Unless Otherwise Noted.
SYMBOL
VIL
VIH
Hysteresis
PARAMETER
Input LOW Voltage
Input HIGH Voltage
SDI and SCK Input Buffer
Hysteresis
TEST CONDITIONS
VLOGIC > 2V
VLOGIC < 2V
MIN
(Note 20)
-0.3
0.7 x VLOGIC
0.05 x VLOGIC
0.1 x VLOGIC
TYP
(Note 8)
MAX
(Note 20)
0.3 x VLOGIC
VLOGIC+ 0.3
UNITS
V
V
V
V
6 FN7873.0
June 20, 2011
Datasheet pdf - http://www.DataSheet4U.net/

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共有リンク

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部品番号部品説明メーカ
ISL23425

Low Voltage Digitally Controlled Potentiometer

Intersil Corporation
Intersil Corporation
ISL23428

Low Voltage Digitally Controlled Potentiometer

Intersil Corporation
Intersil Corporation


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