2.60 X 1.80 MM, ROHS COMPLIANT, PLASTIC, MO-255, UTQFN-16
状态
Active
转换器的类型
DIGITAL POTENTIOMETER
jesd_30_code
R-PQCC-N16
jesd_609_code
e4
包装材料
PLASTIC/EPOXY
ckage_code
QCCN
ckage_equivalence_code
LCC16,.07X.1,16
包装形状
RECTANGULAR
包装尺寸
CHIP CARRIER
wer_supplies__v_
1.5/5,3/5
qualification_status
COMMERCIAL
sub_category
Digital Potentiometers
表面贴装
YES
工艺
CMOS
温度等级
Automotive
端子涂层
NICKEL PALLADIUM GOLD
端子形式
NO LEAD
端子间距
0.4000 mm
端子位置
QUAD
文档预览
DATASHEET
ISL23328
Dual, 128-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)
The ISL23328 is a volatile, low voltage, low noise, low power,
128-Tap, dual digitally controlled potentiometer (DCP) with an
I
2
C 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 I
2
C
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 (64 tap position).
The low voltage, low power consumption, and small package
of the ISL23328 make it an ideal choice for use in battery
operated equipment. In addition, the ISL23328 has a V
LOGIC
pin allowing down to 1.2V bus operation, independent from the
V
CC
value. This allows for low logic levels to be connected
directly to the ISL23328 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.
FN7902
Rev 1.00
September 29, 2015
Features
• Two potentiometers per package
• 128 resistor taps
• 10kΩ, 50kΩ or 100kΩ total resistance
• I
2
C serial interface
- No additional level translator for low bus supply
- Three address pins allow up to eight devices per bus
• Power supply
- V
CC
= 1.7V to 5.5V analog power supply
- V
LOGIC
= 1.2V to 5.5V I
2
C bus/logic power supply
• Maximum supply current without serial bus activity
(standby)
- 3µA @ V
CC
and V
LOGIC
= 5V
- 1.7µA @ V
CC
and V
LOGIC
= 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
• Wiper resistance: 70Ω typical @ V
CC
= 3.3V
• Power-on preset to mid-scale (64 tap position)
• Extended industrial temperature range: -40
°
C to +125
°
C
• 14 Ld TSSOP or 16 Ld UTQFN packages
• Pb-free (RoHS Compliant)
Applications
• Power supply margining
• Trimming sensor circuits
• Gain adjustment in battery powered instruments
• RF power amplifier bias compensation
10000
V
REF
8000
RESISTANCE (Ω)
6000
RH1
-
V
REF_M
4000
1 DCP
OF
ISL23328
RW1
+
ISL28114
2000
RL1
0
0
32
64
TAP POSITION (DECIMAL)
96
128
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP
POSITION, 10kΩ DCP
FIGURE 2. V
REF
ADJUSTMENT
FN7902 Rev 1.00
September 29, 2015
Page 1 of 20
ISL23328
Block Diagram
V
LOGIC
V
CC
RH0
RH1
SCL
SDA
A0
A1
A2
I/O
BLOCK
LEVEL
SHIFTER
POWER UP
INTERFACE,
CONTROL
AND
STATUS
LOGIC
WR0
VOLATILE
REGISTER
AND
WIPER
CONTROL
CIRCUITRY
WR1
VOLATILE
REGISTER
AND
WIPER
CONTROL
CIRCUITRY
GND
RW0
RL0
RW1
RL1
Pin Configurations
ISL23328
(14 LD TSSOP)
TOP VIEW
GND
V
LOGIC
SDA
SCL
A0
A1
A2
1
2
3
4
5
6
7
14 V
CC
13 RL0
12 RW0
11 RH0
10 RH1
9
8
RW1
RL1
Pin Descriptions
TSSOP
1
2
3
4
5
UTQFN
6, 15
16
1
2
3
SYMBOL
GND
V
LOGIC
SDA
SCL
A0
Ground pin
I
2
C bus/logic supply. Range 1.2V to
5.5V
Logic Pin - Serial bus data
input/open drain output
Logic Pin - Serial bus clock input
Logic Pin - Hardwire slave address
pin for I
2
C serial bus.
Range: V
LOGIC
or GND
Logic Pin - Hardwire slave address
pin for I
2
C serial bus.
Range: V
LOGIC
or GND
Logic Pin - Hardwire slave address
pin for I
2
C serial bus.
Range: V
LOGIC
or GND
DCP1 “low” terminal
DCP1 wiper terminal
DCP1 “high” terminal
DCP0 “high” terminal
DCP0 wiper terminal
DCP0 “low” terminal
Analog power supply.
Range 1.7V to 5.5V
Not Connected
DESCRIPTION
6
4
A1
ISL23328
(16 LD UTQFN)
TOP VIEW
V
LOGIC
GND
V
CC
RL0
7
5
A2
8
9
RW0
RH0
RH1
RW1
8
9
10
11
12
13
14
7
RL1
RW1
RH1
RH0
RW0
RL0
V
CC
NC
16
15
14
SDA
SCL
A0
A1
1
2
3
4
5
6
7
13
12
11
10
9
8
10
11
12
13
14
GND
FN7902 Rev 1.00
September 29, 2015
RL1
A2
NC
Page 2 of 20
ISL23328
Ordering Information
PART NUMBER
(Note 4)
ISL23328TFVZ (Note 2)
ISL23328TFVZ-T7A (Notes 1, 2)
ISL23328TFVZ-TK (Notes 1, 2)
ISL23328UFVZ (Note 2)
(No longer available, recommended
replacement: ISL23328TFRUZ-TK)
ISL23328UFVZ-T7A (Notes 1, 2)
(No longer available, recommended
replacement: ISL23328TFRUZ-TK)
ISL23328UFVZ-TK (Notes 1, 2)
ISL23328WFVZ (Note 2)
ISL23328WFVZ-T7A (Notes 1, 2)
ISL23328WFVZ-TK (Notes 1, 2)
ISL23328TFRUZ-T7A (Notes 1, 3)
ISL23328TFRUZ-TK (Notes 1, 3)
ISL23328UFRUZ-T7A (Notes 1, 3)
(No longer available, recommended
replacement: ISL23328TFRUZ-TK)
ISL23328UFRUZ-TK (Notes 1, 3)
(No longer available, recommended
replacement: ISL23328TFRUZ-TK)
ISL23328WFRUZ-T7A (Notes 1, 3)
ISL23328WFRUZ-TK (Notes 1, 3)
NOTES:
1. Please refer to
TB347
for details on reel specifications.
2. 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.
3. 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.
4. For Moisture Sensitivity Level (MSL), please see device information page for
