ISL22346UFV20Z Intersil, ISL22346UFV20Z Datasheet

IC POT DGTL 128TP LN LP 20-TSSOP

ISL22346UFV20Z

Manufacturer Part Number
ISL22346UFV20Z
Description
IC POT DGTL 128TP LN LP 20-TSSOP
Manufacturer
Intersil
Series
XDCP™r
Datasheets

Specifications of ISL22346UFV20Z

Taps
128
Resistance (ohms)
50K
Number Of Circuits
4
Temperature Coefficient
80 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Resistance In Ohms
50K
End To End Resistance
50kohm
Resistance Tolerance
± 20%
No. Of Steps
128
Supply Voltage Range
2.7V To 5.5V
Control Interface
I2C
No. Of Pots
Quad
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL22346UFV20Z
Manufacturer:
Intersil
Quantity:
652
Part Number:
ISL22346UFV20Z-TK
Manufacturer:
Intersil
Quantity:
950
Low Noise, Low Power I
128 Taps
The ISL22346 integrates four digitally controlled potentiometers
(DCP) 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 wipers are controlled by the user through the
I
volatile Wiper Register (WR) and a non-volatile Initial Value
Register (IVR) that can be directly written to and read by the
user. The contents of the WR controls the position of the
wiper. At power-up the device recalls the contents of the two
DCP’s IVR to the corresponding WRs.
The DCPs can be used as a three-terminal potentiometers
or as a two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Pinouts
2
C bus interface. Each potentiometer has an associated
RW3
GND
RW2
SDA
RH3
SCL
RH2
RL3
RL2
A2
(20 LD TSSOP)
1
2
3
4
5
6
7
8
9
10
®
TOP VIEW
ISL22346
1
2
C
Data Sheet
20
19
18
17
16
15
14
13
12
11
Bus,
RW0
RL0
RH0
SHDN
VCC
A1
A0
RH1
RL1
RW1
1-888-INTERSIL or 1-888-468-3774
Quad Digitally Controlled Potentiometers (XDCP™)
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Four potentiometers in one package
• 128 resistor taps
• I
• Non-volatile storage of wiper position
• Wiper resistance: 70Ω typical @ V
• Shutdown mode
• Shutdown current 5µA max
• Power supply: 2.7V to 5.5V
• 50kΩ or 10kΩ total resistance
• High reliability
• 20 Ld TSSOP or 20 Ld TQFN package
• Pb-free (RoHS compliant)
|
- Three address pins, up to eight devices/bus
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T < +55
September 3, 2009
2
Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc.
C serial interface
All other trademarks mentioned are the property of their respective owners.
Copyright Intersil Americas Inc. 2006, 2008, 2009. All Rights Reserved
RW0
RW3
RH3
RL0
RL3
O
1
2
3
4
5
20 19
(20 LD TQFN)
6
TOP VIEW
ISL22346
7
18
8
17
9
16
10
CC
11
15
14
13
12
= 3.3V
ISL22346
RH1
RL1
RW1
RH2
RL2
FN6177.2
°
C

Related parts for ISL22346UFV20Z

ISL22346UFV20Z Summary of contents

Page 1

... A1 A0 RH1 RL1 RW1 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 Inc. All other trademarks mentioned are the property of their respective owners. ISL22346 FN6177 ° ...

Page 2

... Ordering Information PART NUMBER PART (Note) MARKING ISL22346UFV20Z* 22346 UFVZ ISL22346UFRT20Z* 223 46UFZ ISL22346WFV20Z* 22346 WFVZ ISL22346WFRT20Z* 223 46WFZ *Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: 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) ...

Page 3

... EPAD* *Note: PCB thermal land for QFN EPAD should be connected to GND plane or left floating. For more information refer to http://www.intersil.com/data/tb/TB389.pdf 3 ISL22346 PIN NAME A1 Device address input for the I VCC Power supply pin SHDN Shutdown active low input RH0 “High” terminal of DCP0 RL0 “ ...

Page 4

... Thermal Resistance (Typical) 20 Lead TSSOP (Note 0 Lead TQFN (Notes Maximum Junction Temperature (Plastic Package +150°C Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below CC http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Temperature Range (Extended Industrial .-40°C to +125° 2.7V to 5.5V CC Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15mW Wiper Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3.0mA ...

Page 5

Analog Specifications Over recommended operating conditions, unless otherwise stated. (Continued) SYMBOL PARAMETER TC Ratiometric Temperature Coefficient V (Note 12) RESISTOR MODE (Measurements between R RINL Integral Non-linearity (Note 16) RDNL Differential Non-linearity (Note 15) Roffset Offset (Note 14) R DCP ...

Page 6

Operating Specifications Over the recommended operating conditions, unless otherwise specified. (Continued) SYMBOL PARAMETER V Ramp V Ramp Rate Power-up Delay D EEPROM SPECIFICATION EEPROM Endurance EEPROM Retention t Non-volatile Write Cycle Time WC (Note 19) SERIAL INTERFACE ...

Page 7

Operating Specifications Over the recommended operating conditions, unless otherwise specified. (Continued) SYMBOL PARAMETER t SDA and SCL Fall Time F Cb Capacitive Loading of SDA or SCL Rpu SDA and SCL Bus Pull-up Resistor Off-chip t A2, A1 and A0 ...

Page 8

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 Typical Performance Curves 100 V = 3.3V +125° ...

Page 9

Typical Performance Curves 0 2.7V CC 0 5. TAP POSITION (DECIMAL) FIGURE 3. DNL vs TAP POSITION IN VOLTAGE DIVIDER MODE FOR 10kΩ (W) 1.3 10k 1.1 0.9 ...

Page 10

Typical Performance Curves 1.0 0 2. 5.5V CC 10k -0.5 -1.0 -40 - TEMPERATURE (ºC) FIGURE 9. END TO END R % CHANGE vs TOTAL TEMPERATURE 300 250 200 150 50k ...

Page 11

Pin Descriptions Potentiometers Pins RHI AND RLI ( The high (RHi) and low (RLi) terminals of the ISL22346 are equivalent to the fixed terminals of a mechanical potentiometer. RHi and RLi are referenced to ...

Page 12

Memory Description The ISL22346 contains seven non-volatile and five volatile 8-bit registers. The memory map of ISL22346 is on Table 1. The four non-volatile registers (IVRi) at address and 3 contain initial wiper value and volatile registers ...

Page 13

TABLE 4. IDENTIFICATION BYTE FORMAT Logic values at pins A2, A1, and A0 respectively (MSB) SCL SDA START FIGURE 16. VALID DATA CHANGES, START AND STOP CONDITIONS SCL FROM MASTER SDA OUTPUT FROM TRANSMITTER SDA ...

Page 14

S SIGNALS T FROM THE A IDENTIFICATION MASTER R BYTE WITH T R SIGNAL AT SDA SIGNALS FROM THE SLAVE Write Operation A Write operation requires a START condition, followed ...

Page 15

... Dimensions D2 and E2 are for the exposed pads which provide improved electrical and thermal performance. 8. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 9. Features and dimensions A2, A3, D1, E1, P & θ are present when Anvil singulation method is used and not present for saw singulation ...

Page 16

... 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 ...

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