X9312TP Xicor, X9312TP Datasheet

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X9312TP

Manufacturer Part Number
X9312TP
Description
E2POT nonvolatile digital potentiometer
Manufacturer
Xicor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
X9312TP
Manufacturer:
NS
Quantity:
100
XDCP is a trademark of Xicor, Inc.
Terminal Voltage 0V to +15V, 100 Taps
FEATURES
• Solid-state potentiometer
• 3-wire serial interface
• Terminal voltage, 0 to +15V
• 100 wiper tap points
• 99 resistive elements
• Low power CMOS
• High reliability
• R
• Packages
BLOCK DIAGRAM
REV 1.1.3 8/20/02
AN20 • AN42–53 • AN71 • AN73 • AN88 • AN91–92 • AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135
Device Select
—Wiper position stored in nonvolatile memory
—Temperature compensated
—End to end resistance range ± 20%
—V
—Active current, 3mA max.
—Standby current, 1mA max.
—Endurance, 100,000 data changes per bit
—Register data retention, 100 years
—8-lead SOIC and DIP
TOTAL
Increment
and recalled on power-up
Up/Down
CC
(U/D)
(INC)
(CS)
= 5V
values = 10K Ω, 50K Ω, and 100K Ω
V
CC
V
(Supply Voltage)
SS
General
Memory
Control
(Ground)
and
Digitally Controlled Potentiometer (XDCP
A V A I L A B L E
A
PPLICATION
R
R
R
H
W
L
/V
/V
/V
L
H
W
U/D
INC
V
V
CS
N
CC
SS
OTE
www.xicor.com
X9312
Nonvolatile
Up/Down
Store and
Memory
Counter
Circuitry
Control
Recall
7-Bit
7-Bit
DESCRIPTION
The Xicor X9312 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory.
The wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 99 resistive elements and a wiper
switching network. Between each element and at
either end are tap points accessible to the wiper
terminal. The position 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 subsequent
power-up operation.
The device 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
– signal processing
Hundred
Decoder
One
One
of
Detailed
99
98
97
96
2
1
0
Characteristics subject to change without notice.
Transfer
Gates
)
Resistor
Array
R
R
R
H
L
W
1 of 9
/V
/V
/V
L
H
W

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X9312TP Summary of contents

Page 1

... N PPLICATION OTE X9312 DESCRIPTION The Xicor X9312 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a 3-wire interface. The potentiometer is implemented by a resistor array composed of 99 resistive elements and a wiper switching network ...

Page 2

... When the device is powered-down, the last wiper CC position stored will be maintained in the nonvolatile CS memory. When power is restored, the contents of the memory are recalled and the wiper is set to the value last stored. www.xicor.com Description /V High terminal H /V Wiper terminal W /V Low terminal L L Ground SS Supply voltage ...

Page 3

... Must be steady May change from Low to High May change from High to Low Don’t Care: Changes Allowed N/A www.xicor.com Characteristics subject to change without notice. Mode Wiper up Wiper down Store wiper position Standby current No store, return to standby OUTPUTS Will be steady Will change ...

Page 4

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Max. Supply Voltage (V +70°C +85°C Limits Min. Typ -120 1 ±300 10/10/25 W(n+1) /99. TOT www.xicor.com ) Limits CC X9312 5V ±10% Max. Unit Test Conditions/Notes ± ≥ 10 KΩ 25 ...

Page 5

... REV 1.1.3 8/20/02 Limits (4) Min. Typ. Max 500 1000 ± –1 0.8 10 Min. 100,000 100 Test Circuit # Test Point Force Current www.xicor.com Unit Test Conditions U and INC = 0.4V/2.4V @ max. t CYC µ – 0.3V, U/D and CC INC = – 0. µ 5V 25° ...

Page 6

... CC ramp spec is always in effect CYC (8) MI www.xicor.com Limits 6 Typ. Max. 100 500 500 500 50 t CPH 90% 90% 10 output due to a change in the wiper position. W Characteristics subject to change without notice. Unit ns ns µ ...

Page 7

... REV 1.1.3 8/20/ Cascading Techniques + OUT (a) Offset Voltage Adjustment (REG 100KΩ – + TL072 10KΩ 10KΩ 10KΩ 2 +12V -12V www.xicor.com Two terminal variable resistor; variable current Noninverting Amplifier +5V LM308A – – Comparator with Hysteresis R 2 LT311A V – ...

Page 8

... REV 1.1.3 8/20/02 Pin 1 0.014 (0.35) 0.019 (0.49) 0.188 (4.78) 0.197 (5.00) (4X) 7° 0.050 (1.27) X 45° 0.0075 (0.19) 0.010 (0.25) FOOTPRINT www.xicor.com 0.150 (3.80) 0.228 (5.80) 0.158 (4.00) 0.244 (6.20) 0.053 (1.35) 0.069 (1.75) 0.004 (0.19) 0.010 (0.25) 0.050"Typical 0.050" Typical 0.250" ...

Page 9

... Xicor, Inc. makes no warranty of merchantability or fitness for any purpose. Xicor, Inc. reserves the right to discontinue production and change specifications and prices at any time and without notice. Xicor, Inc. assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xicor, Inc. product. No other circuits, patents, or licenses are implied. TRADEMARK DISCLAIMER: Xicor and the Xicor logo are registered trademarks of Xicor, Inc ...

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