ISL23328TFVZ-TK Intersil, ISL23328TFVZ-TK Datasheet

no-image

ISL23328TFVZ-TK

Manufacturer Part Number
ISL23328TFVZ-TK
Description
IC DGTL POT 2CH 100K 14TSSOP
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of ISL23328TFVZ-TK

Taps
128
Resistance (ohms)
100K
Number Of Circuits
2
Temperature Coefficient
45 ppm/°C Typical
Memory Type
Volatile
Interface
I²C (Device Address)
Voltage - Supply
1.2 V ~ 5.5 V, 1.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
*
Package / Case
*
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Dual, 128-Tap, Low Voltage Digitally Controlled
Potentiometer (XDCP™)
ISL23328
The ISL23328 is a volatile, low voltage, low noise, low power,
128-Tap, dual digitally controlled potentiometer (DCP) with an
I
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
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
pin allowing down to 1.2V bus operation, independent from the
V
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.
Applications
• Power supply margining
• Trimming sensor circuits
• Gain adjustment in battery powered instruments
• RF power amplifier bias compensation
2
August 19, 2011
FN7902.0
CC
C Bus™ interface. It integrates two DCP cores, wiper switches
10000
FIGURE 1. FORWARD AND BACKWARD RESISTANCE vs TAP
8000
6000
4000
2000
value. This allows for low logic levels to be connected
0
0
POSITION, 10kΩ DCP
32
TAP POSITION (DECIMAL)
1
64
96
LOGIC
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.
2
C
128
1-888-INTERSIL or 1-888-468-3774
Features
• Two potentiometers per package
• 128 resistor taps
• 10kΩ, 50kΩ or 100kΩ total resistance
• I
• Power supply
• Maximum supply current without serial bus activity
• Shutdown Mode
• Wiper resistance: 70Ω typical @ V
• Power-on preset to mid-scale (64 tap position)
• Extended industrial temperature range: -40
• 14 Ld TSSOP or 16 Ld UTQFN packages
• Pb-free (RoHS Compliant)
- No additional level translator for low bus supply
- Three address pins allow up to eight devices per bus
- V
- V
(standby)
- 3µA @ V
- 1.7µA @ V
- Forces the DCP into an end-to-end open circuit and RWi is
- Reduces power consumption by disconnecting the DCP
ISL23328
2
1 DCP
C serial interface
connected to RLi internally
resistor from the circuit
OF
All other trademarks mentioned are the property of their respective owners
CC
LOGIC
= 1.7V to 5.5V analog power supply
= 1.2V to 5.5V I
V
CC
REF
CC
RH1
RL1
FIGURE 2. V
and V
|
and V
Copyright Intersil Americas Inc. 2011. All Rights Reserved
RW1
LOGIC
LOGIC
2
= 5V
REF
C bus/logic power supply
= 1.7V
+
-
ADJUSTMENT
ISL28114
CC
= 3.3V
°
C to +125
V
REF_M
°
C

Related parts for ISL23328TFVZ-TK

ISL23328TFVZ-TK Summary of contents

Page 1

... FIGURE 2. V 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 trademarks owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners 2 C bus/logic power supply ...

Page 2

Block Diagram V LOGIC SCL SDA LEVEL I/O A0 SHIFTER BLOCK A1 A2 Pin Configurations ISL23328 (14 LD TSSOP) TOP VIEW GND LOGIC SDA 3 SCL ISL23328 (16 LD UTQFN) ...

Page 3

... Ordering Information PART NUMBER (Note 4) PART MARKING ISL23328TFVZ (Note 2) 23328 TFVZ ISL23328TFVZ-T7A (Notes 1, 2) 23328 TFVZ ISL23328TFVZ-TK (Notes 1, 2) 23328 TFVZ ISL23328UFVZ (Note 2) 23328 UFVZ ISL23328UFVZ-T7A (Notes 1, 2) 23328 UFVZ ISL23328UFVZ-TK (Notes 1, 2) 23328 UFVZ ISL23328WFVZ (Note 2) 23328 WFVZ ISL23328WFVZ-T7A (Notes 1, 2) ...

Page 4

... Thermal Resistance (Typical TSSOP Package (Notes UTQFN Package (Notes Maximum Junction Temperature (Plastic Package .+150°C Storage Temperature Range .-65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +125°C V Supply Voltage 1. Supply Voltage ...

Page 5

Analog Specifications V = 2.7V to 5.5V Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued) SYMBOL PARAMETER VOLTAGE DIVIDER MODE ( RH; measured at RW, unloaded) CC INL Integral Non-linearity, ...

Page 6

Analog Specifications V = 2.7V to 5.5V Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued) SYMBOL PARAMETER R Offset, Wiper at 0 Position offset (Note 15) Rmatch DCP to DCP Matching (Note 22) TCR ...

Page 7

Operating Specifications Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued) SYMBOL PARAMETER t Wiper Response Time DCP tShdnRec DCP Recall Time from Shutdown Mode Ramp Rate CC, LOGIC CC , LOGIC Ramp ...

Page 8

Serial Interface Specification SYMBOL PARAMETER t START Condition Hold Time HD:STA t Input Data Set-up Time SU:DAT t Input Data Hold Time HD:DAT t STOP Condition Set-up Time SU:STO t STOP Condition Hold Time for Read HD:STO or Write t ...

Page 9

DCP Macro Model Timing Diagrams SDA vs SCL Timing SCL t SU:STA t HD:STA SDA (INPUT TIMING) SDA (OUTPUT TIMING) A0, A1, and A2 Pin Timing START SCL SDA A0, A1 ISL23328 R TOTAL ...

Page 10

Typical Performance Curves 0.20 0.10 0.00 -0.10 -0. TAP POSITION (DECIMAL) FIGURE 3. 10kΩ DNL vs TAP POSITION, V 0.30 0.15 0.00 -0.15 -0. TAP POSITION (DECIMAL) FIGURE 5. 10kΩ INL vs TAP POSITION, ...

Page 11

Typical Performance Curves 0.30 0.15 0.00 -0.15 -0. TAP POSITION (DECIMAL) FIGURE 9. 10kΩ RINL vs TAP POSITION, V 100 +25° -40° TAP POSITION (DECIMAL) FIGURE 11. 10kΩ WIPER ...

Page 12

Typical Performance Curves 500 400 300 200 100 TAP POSITION (DECIMAL) FIGURE 15. 10kΩ TCr vs TAP POSITION TAP POSITION (DECIMAL) FIGURE 17. 100kΩ TCv vs TAP POSITION, ...

Page 13

Typical Performance Curves 1V/DIV 0.2µs/DIV FIGURE 21. WIPER LARGE SIGNAL SETTLING TIME CH1: RH TERMINAL CH2: RW TERMINAL 0.5V/DIV, 0.2µs/DIV -3dB FREQUENCY = 1.4MHz AT MIDDLE TAP FIGURE 23. 10kΩ -3dB CUT OFF FREQUENCY Functional Pin Descriptions Potentiometers Pins RH ...

Page 14

SERIAL CLOCK (SCL) 2 This input is the serial clock of the I C serial interface. SCL requires an external pull-up resistor, since a master is an open drain output. DEVICE ADDRESS (A2, A1, A0) The address inputs are used ...

Page 15

POWER-UP MID SCALE = 40H USER PROGRAMMED SHDN ACTIVATED SHDN RELEASED SHDN MODE 0 TIME (s) FIGURE 26. SHUTDOWN MODE WIPER RESPONSE Serial Interface 2 The ISL23328 supports bidirectional bus oriented protocol. The protocol ...

Page 16

SCL FROM MASTER SDA OUTPUT FROM TRANSMITTER SDA OUTPUT FROM RECEIVER START SIGNALS FROM THE MASTER SIGNAL AT SDA SIGNALS FROM THE SLAVE S T SIGNALS A IDENTIFICATION FROM THE R BYTE WITH MASTER T R SIGNAL AT ...

Page 17

Applications Information V Requirements LOGIC V should be powered continuously during normal operation. LOGIC In a case where turning V OFF is necessary LOGIC recommended to ground the V pin of the ISL23328. LOGIC Grounding the V pin ...

Page 18

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. ...

Page 19

Package Outline Drawing M14.173 14 LEAD THIN SHRINK SMALL OUTLINE PACKAGE (TSSOP) Rev 3, 10/09 1 5.00 ±0.10 14 6.40 4.40 ±0. 0. 0.65 TOP VIEW H C SEATING PLANE 0.10 C SIDE VIEW ...

Page 20

... Maximum package warpage is 0.05mm. 8. Maximum allowable burrs is 0.076mm in all directions. TERMINAL TIP 9. JEDEC Reference MO-255. 10. For additional information, to assist with the PCB Land Pattern Design effort, see Intersil Technical Brief TB389. 1.40 0.40 0.20 MILLIMETERS MIN NOMINAL ...

Related keywords