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ISL22414のメーカーはIntersilです、この部品の機能は「Dual Digitally Controlled Potentiometer」です。 |
部品番号 | ISL22414 |
| |
部品説明 | Dual Digitally Controlled Potentiometer | ||
メーカ | Intersil | ||
ロゴ | |||
このページの下部にプレビューとISL22414ダウンロード(pdfファイル)リンクがあります。 Total 20 pages
ISL22424
Dual Digitally Controlled Potentiometer (XDCP™)
Data Sheet
September 9, 2015
FN6425.1
Low Noise, Low Power, SPI® Bus,
256 Taps
The ISL22424 integrates two digitally controlled
potentiometers (DCP), control logic and non-volatile memory
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 wiper is controlled by the user through the SPI
serial interface. Each potentiometer has an associated
volatile Wiper Register (WRi) and a non-volatile Initial Value
Register (IVRi) that can be directly written to and read by the
user. The contents of the WRi control the position of the
wiper. At power-up the device recalls the contents of the
DCP’s IVRi to the corresponding WRi.
The ISL22424 also has 13 General Purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22424 features a dual supply, that is beneficial for
applications requiring a bipolar range for DCP terminals
between V- and VCC.
Each DCP can be used as three-terminal potentiometer or
as two-terminal variable resistor in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Features
• Two potentiometers in one package
• 256 resistor taps
• SPI serial interface with write/read capability
• Daisy Chain Configuration
• Shutdown mode
• Non-volatile EEPROM storage of wiper position
• 13 General Purpose non-volatile registers
• High reliability
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T 55°C
• Wiper resistance: 70 typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
• 10k 50kor 100k total resistance
• Extended industrial temperature range: -40ºC to +125ºC
• 14 Ld TSSOP or 16 Ld QFN
• Pb-free plus anneal product (RoHS compliant)
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) and XDCP are registered trademarks of Intersil Americas LLC
Copyright Intersil Americas LLC 2007, 2015. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
1 Page Block Diagram
SCK
SDI
SDO
CS
SPI
INTERFACE
ISL22424
VCC V-
RH0
RH1
POWER UP,
CONTROL
AND
STATUS
LOGIC
NON-VOLATILE
REGISTERS
GND
WR0
VOLATILE
REGISTER
AND
WIPER
CONTROL
CIRCUITRY
WR0
VOLATILE
REGISTER
AND
WIPER
CONTROL
CIRCUITRY
RW0 RL0
RW1 RL1
Pinouts
ISL22424
(14 LD TSSOP)
TOP VIEW
RH0 1
RL0 2
RW0 3
RH1 4
RL1 5
RW1 6
NC 7
14 VCC
13 CS
12 SDI
11 GND
10 SCK
9 SDO
8 V-
ISL22424
(16 LD QFN)
TOP VIEW
16 15 14 13
NC 1
12 RL0
NC 2
NC 3
V- 4
11 RH0
10 VCC
9 CS
5678
3 FN6425.1
September 9, 2015
3Pages ISL22424
Analog Specifications Over recommended operating conditions unless otherwise stated. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
TYP
MIN (NOTE 4) MAX
fcutoff
-3dB cut off frequency
(Note 20)
Wiper at midpoint (80hex) W option (10k)
Wiper at midpoint (80hex) U option (50k)
1000
250
Wiper at midpoint (80hex) T option (100k)
120
RESISTOR MODE (Measurements between RW and RL with RH not connected, or between RW and RH with RL not connected)
RINL
Integral non-linearity
(Note 15)
W option
-3 ±1.5 3
U, T option
-1 ±0.4 1
RDNL Differential non-linearity
(Note 14)
W option
U, T option
-1.5 ±0.5
-0.5 ±0.15
1.5
0.5
Roffset Offset
(Note 13)
W option
U, T option
015
0 0.5 2
RMATCH DCP to DCP matching
(Note 16)
Wipers at the same tap position with the
same terminal voltages
-2
2
TCR
Resistance temperature coefficient
(Note 17, 20)
DCP register set between 32hex and FF hex
±40
UNIT
kHz
kHz
kHz
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
ppm/°C
Operating Specifications Over the recommended operating conditions unless otherwise specified.
SYMBOL
ICC1
PARAMETER
VCC Supply Current (volatile
write/read)
IV-1 V- Supply Current (volatile
write/read)
ICC2
VCC Supply Current
(non-volatile write/read)
IV-2 V- Supply Current (non-volatile
write/read)
V- Supply Current (non-volatile
write/read)
ISB VCC Current (standby)
TEST CONDITIONS
VCC = 5.5V, V- = 5.5V, fSCK = 5MHz; (for SPI
Active, Read and Volatile Write states only)
VCC = 2.25V, V- = -2.25V, fSCK = 5MHz; (for SPI
Active, Read and Volatile Write states only)
V- = -5.5V, VCC = 5.5V, fSCK = 5MHz; (for SPI
Active, Read and Volatile Write states only)
V- = -2.25V, VCC = 2.25V, fSCK = 5MHz; (for SPI
Active, Read and Volatile Write states only)
VCC = 5.5V, V- = 5.5V, fSCK = 5MHz; (for SPI
Active, Read and Non-volatile Write states only)
VCC = 2.25V, V- = -2.25V, fSCK = 5MHz; (for SPI
Active, Read and Non-volatile Write states only)
V- = -5.5V, VCC = 5.5V, fSCK = 5MHz; (for SPI
Active, Read and Non-volatile Write states only)
V- = -2.25V, VCC = 2.25V, fSCK = 5MHz; (for SPI
Active, Read and Non-volatile Write states only)
VCC = +5.5V, V- = -5.5V @ +85°C, SPI interface
in standby state
VCC = +5.5V, V- = -5.5V @ +125°C, SPI
interface in standby state
VCC = +2.25V, V- = -2.25V @ +85°C, SPI
interface in standby state
VCC = +2.25V, V- = -2.25V @ +125°C, SPI
interface in standby state
MIN
-1.0
-0.5
-2.0
-1.0
TYP
(NOTE 4)
0.6
0.25
-0.3
-0.1
1.0
0.3
-1.2
-0.4
0.5
1.0
0.2
0.5
MAX
1.0
0.5
2.0
1.0
2.0
4.0
1.0
2.0
UNIT
mA
mA
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
6 FN6425.1
September 9, 2015
6 Page | |||
ページ | 合計 : 20 ページ | ||
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部品番号 | 部品説明 | メーカ |
ISL22414 | Dual Digitally Controlled Potentiometer | Intersil |
ISL22416 | Single Digitally Controlled Potentiometer | Intersil Corporation |
ISL22419 | Single Digitally Controlled Potentiometer | Intersil Corporation |