X9315 Xicor, X9315 Datasheet

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X9315

Manufacturer Part Number
X9315
Description
E 2 POT TM Nonvolatile Digital Potentiometer
Manufacturer
Xicor
Datasheet

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E
FUNCTIONAL DIAGRAM
Low Noise, Low Power, 32 Taps
FEATURES
• Low Power CMOS
• Low Noise
• 31 Resistive Elements
• 32 Wiper Tap Points
• 100 Year Wiper Position Data Retention
• X9315Z = 1K
• X9315W = 10K
• Packages
6732-2.0 5/30/97 T1/C0/D0 SH
2
POT™ is a trademark of Xicor, Inc.
—V
—Active Current, 50 A (Increment) max
—Active Current, 400 A (Store) Max
—Standby Current, 1 A Max
—Temperature Compensated
— 20% End to End Resistance Range
—V
—Wiper Positioned via Three-Wire Interface
—Similar to TTL Up/Down Counter
—Wiper Position Stored in Nonvolatile Memory
—8-Lead SOIC
—8-Lead MSOP
—8-Pin DIP
and Recalled on Power-Up
CC
SS
to V
= 2.7V to 5.5V, Single Supply
A V A I L A B L E
U/D
INC
CC
A
CS
PPLICATION
AN104
Range
N
NONVOLA TILE
OTE
STORE AND
CIRCUITR Y
COUNTER
UP/DO WN
MEMOR Y
CONTR OL
E
RECALL
5-BIT
5-BIT
2
POT
TM
Nonvolatile Digital Potentiometer
DECODER
POSITION
THIRTY -
WIPER
TWO
ONE
OF
X9315
1
DESCRIPTION
The Xicor X9315 is a solid state "micropower" nonvol-
atile potentiometer and is ideal for digitally controlled
resistance trimming.
The X9315 is a resistor array composed of 31 resistive
elements. Between each element and at either end are
tap points accessible to the wiper element. The posi-
tion of the wiper element is controlled by the CS, U/D,
and INC inputs. The position of the wiper can be stored
in nonvolatile memory and then be recalled upon a sub-
sequent power-up operation.
The resolution of the X9315 is equal to the maximum
resistance value divided by 31. As an example, for the
X9315W (10K ) each tap point represents 323 .
All Xicor nonvolatile digital potentiometers are de-
signed and tested for applications requiring extended
endurance and data retention.
CMOS SWITCH
RESISTOR
ARRAY
Characteristics subject to change without notice
VL
VW
VH
6732 FM1

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X9315 Summary of contents

Page 1

... The Xicor X9315 is a solid state "micropower" nonvol- atile potentiometer and is ideal for digitally controlled resistance trimming. The X9315 is a resistor array composed of 31 resistive elements. Between each element and at either end are tap points accessible to the wiper element. The posi- tion of the wiper element is controlled by the CS, U/D, and INC inputs ...

Page 2

... The device is selected when the CS input is LOW. The current counter value is stored in nonvolatile memory when CS is returned HIGH while the INC input is also HIGH. After the store operation is complete the X9315 will be placed in the low power standby mode until the device is selected once again. ...

Page 3

... The state of U/D may be changed while CS remains LOW. This allows the host system to enable the X9315 and then move the wiper up and down until the proper trim is attained. SYMBOL TABLE ...

Page 4

... X9315 ABSOLUTE MAXIMUM RATINGS* Temperature under Bias .........................– +135 C Storage Temperature..............................– +150 C Voltage on CS, INC, U and with Respect to V .................................. – –V | ................................................................. Lead Temperature (Soldering 10 seconds)............. 300 C Wiper Current ........................................................... 1mA ANALOG CHARACTERISTICS Electrical Characteristics Temperature under Bias.........................– ...

Page 5

... Part Number Maximum Resistance X9315Z X9315W Notes: (4) Typical values are for and nominal supply voltage. A (5) This parameter is periodically sampled and not 100% tested. Max. Supply Voltage +70 C X9315 +85 C X9315-2.7 6732 PGM T02 Limits (4) Min. Typ. Max. 50 400 ...

Page 6

... X9315 A.C. CONDITIONS OF TEST Input Pulse Levels Input Rise and Fall Times Input Reference Levels A.C. OPERATING CHARACTERISTICS (Over recommended operating conditions unless otherwise specified) Symbol Parameter INC Setup Cl t INC HIGH to U/D Change lD t U/D to INC Setup DI t INC LOW Period lL t INC HIGH Period ...

Page 7

... X9315 TYPICAL NOISE 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 TYPICAL RTOTAL vs. TEMPERATURE 10000 9800 9600 9400 9200 9000 8800 8600 8400 8200 8000 -55 -45 -35 - 100 110 120 Frequenc y (KHz) - ...

Page 8

... X9315 TYPICAL TOTAL RESISTANCE TEMPERATURE COEFFICIENT 0 -50 -100 -150 PPM -200 -250 -300 -350 -55 -45 -35 -25 -15 TYPICAL WIPER RESISTANCE 800 700 600 500 400 300 200 100 Temperature Tap 105 115 ...

Page 9

... X9315 TYPICAL ABSOLUTE % ERROR PER TAP POSITION 40.0% 30.0% 20.0% 10.0% 0.0% -10.0% -20.0% -30.0% -40. TYPICAL RELATIVE % ERROR PER TAP POSITION 20.0% 15.0% 10.0% 5.0% 0.0% -5.0% -10.0% -15.0% -20. Tap Tap ...

Page 10

... X9315 PACKAGING INFORMATION 8-LEAD MINIATURE SMALL OUTLINE GULL WING PACKAGE TYPE M 0.040 (1.02 0.007 (0.18) 0.005 (0.13) NOTE: 1. ALL DIMENSIONS IN INCHES AND (MILLIMETERS) 0.118 0.002 (3.00 0.05) 0.012 + 0.006 / -0.002 (0.30 + 0.15 / -0.05) 0.118 0.002 (3.00 0.05) 0.030 (0.76) 0.0216 (0.55) 7 TYP 0.036 (0.91) 0.032 (0.81) 0.002 0.008 (0.20) 0.05) 0.004 (0.10) 0.150 (3.81) REF. 0.193 (4.90) REF. 10 0.0256 (0.65) TYP R 0 ...

Page 11

... X9315 PACKAGING INFORMATION 8-LEAD PLASTIC DUAL IN-LINE PACKAGE TYPE P HALF SHOULDER WIDTH ON ALL END PINS OPTIONAL 0.015 (0.38) TYP . 0.010 (0.25) NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH 0.430 (10.92) 0.360 (9.14) PIN 1 INDEX PIN 1 0.300 (7.62) REF. SEATING PLANE 0.150 (3.81) 0.125 (3.18) ...

Page 12

... X9315 PACKAGING INFORMATION 8-LEAD PLASTIC SMALL OUTLINE GULL WING PACKAGE TYPE S PIN 1 INDEX 0.010 (0.25) 0.020 (0.50) 0 – 8 0.016 (0.410) 0.037 (0.937) NOTE: ALL DIMENSIONS IN INCHES (IN P ARENTHESES IN MILLIMETERS) PIN 1 0.014 (0.35) 0.019 (0.49) 0.188 (4.78) 0.197 (5.00) (4X) 7 0.050 (1.27 0.0075 (0.19) 0.250" 0.010 (0.25) FOOTPRINT 12 0.150 (3.80) 0.228 (5.80) ...

Page 13

... A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness. X9315X ...

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