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X9420WV14IZT1

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19
10
FN8195.1
April 26, 2006
Transfer Wiper Counter Register (WCR) to Data Register (DR)
Increment/Decrement Wiper Counter Register (WCR)
Read Status
CS
Falling
Edge
device type
identifier
device
addresses
instruction
opcode
register
addresses
CS
Rising
Edge
HIGH-VOLTAGE
WRITE CYCLE
0101110
A
0
1110
R
1
R
0
00
CS
Falling
Edge
device type
identifier
device
addresses
instruction
opcode
increment/decrement
(sent by master on SDA)
CS
Rising
Edge
0101110
A
0
00100000I/DI/D. . . .I/DI/D
CS
Falling
Edge
device type
identifier
device
addresses
instruction
opcode
Data Byte
(sent by X9420 on SO)
CS
Rising
Edge
0101110
A
0
010100010000000
W
I
P
X9420
11
FN8195.1
April 26, 2006
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .....................-65C to +135C
Storage temperature ..........................-65C to +150C
Voltage on SCK, SCL or any
address input with respect to V
SS
........... -1V to +7V
Voltage on V+ (referenced to V
SS
)........................ 10V
Voltage on V- (referenced to V
SS
)........................-10V
(V+) - (V-) .............................................................. 12V
Any V
H
/R
H
, V
L
/R
L
, V
W
/R
W
........................... V- to V+
Lead temperature (soldering, 10s) .....................300C
I
W
(10s) ..............................................................±6mA
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; functional operation of the
device (at these or any other conditions above those
listed in the operational sections of this specification)
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
ANALOG CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Notes: (1) Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as
a potentiometer.
(2) Relative Linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potenti-
ometer. It is a measure of the error in step size.
(3) MI = RTOT/63 or (V
H
- V
L
)/63, single pot.
(4) Typical = Individual array resolution.
Symbol Parameter
Limits
Test ConditionsMin. Typ. Max. Units
R
TOTAL
End to End Resistance ±20 %
Power Rating 50 mW 25C, each pot
I
W
Wiper Current ±3 mA
R
W
Wiper Resistance 150 250 Ω Wiper Current = ± 1mA,
V+/V- = ±3V
40 100 Ω Wiper Current = ± 1mA,
V+/V- = ±5V
Vv+ Voltage on V+ Pin X9420 +4.5 +5.5 V
X9420-2.7 +2.7 +5.5
Vv- Voltage on V- Pin X9420 -5.5 -4.5 V
X9420-2.7 -5.5 -2.7
V
TERM
Voltage on any V
H
/R
H
, V
L
/R
L
, V
W
/R
W
V- V+ V
Noise -140 dBV Ref: 1kHz
Resolution
(4)
1.6 % See Note 5
Absolute Linearity
(1)
±1 MI
(3)
V
w(n)(actual)
- V
w(n)(expected)
Relative Linearity
(2)
±0.2 MI
(3)
V
w(n + 1)
- [V
w(n) + MI
]
Temperature Coefficient of R
TOTAL
±300 ppm/C See Note 5
Ratiometric Temperature Coefficient ±20 ppm/C See Note 5
C
H
/C
L
/C
W
Potentiometer Capacitances 10/10/25 pF See Circuit #3
I
AL
Rh, RI, Rw leakage current 0.1 10 µA Vin = V- to V+. Device is in
stand-by mode.
RECOMMENDED OPERATING CONDITIONS
Temp Min. Max.
Commercial 0°C+70°C
Industrial -40°C+85°C
Device Supply Voltage (V
CC
) Limits
X9420 5V ± 10%
X9420-2.7 2.7V to 5.5V
X9420
12
FN8195.1
April 26, 2006
D.C. OPERATING CHARACTERISTICS (Over the recommended operating conditions unless otherwise specified.)
ENDURANCE AND DATA RETENTION
CAPACITANCE
POWER-UP TIMING
POWER-UP REQUIREMENTS (Power-up sequencing can affect correct recall of the wiper registers)
The preferred power-on sequence is as follows: First V
CC
, then V+ and V-, and then the potentiometer pins, R
H
, R
L
,
and R
W
. Voltage should not be applied to the potentiometer pins before V+ or V- is applied. The V
CC
ramp rate
specification should be met, and any glitches or slope changes in the V
CC
line should be held to <100mV if possible.
If V
CC
powers down, it should be held below 0.1V for more than 1 second before powering up again in order for
proper wiper register recall. Also, V
CC
should not reverse polarity by more than 0.5V. Recall of wiper position will not
be complete until V
CC
, V+ and V- reach their final value.
Notes: (5) This parameter is periodically sampled and not 100% tested.
(6) t
PUR
and t
PUW
are the delays required from the time the third (last) power supply (V
CC
, V+ or V-) is stable until the specific instruction
can be issued. These parameters are periodically sampled and not 100% tested.
Symbol Parameter
Limits
Test ConditionsMin. Typ. Max. Units
I
CC1
V
CC
Supply Current (Active) 400 µA f
SCK
= 2MHz, SO = Open,
Other Inputs = V
SS
I
CC2
V
CC
Supply Current
(Non-volatile Write)
1mAf
SCK
= 2MHz, SO = Open,
Other Inputs = V
SS
I
SB
V
CC
Current (Standby) 1 μA SCK = SI = V
SS
, Addr. = V
SS
I
LI
Input Leakage Current 10 μAV
IN
= V
SS
to V
CC
I
LO
Output Leakage Current 10 μAV
OUT
= V
SS
to V
CC
V
IH
Input HIGH Voltage V
CC
x 0.7 V
CC
+ 0.5 V
V
IL
Input LOW Voltage -0.5 V
CC
x 0.1 V
V
OL
Output LOW Voltage 0.4 V I
OL
= 3mA
Parameter Min. Units
Minimum Endurance 100,000 Data Changes per Bit per Register
Data Retention 100 Years
Symbol Test Max. Units Test Conditions
C
OUT
(5)
Output Capacitance (SO) 8 pF V
OUT
= 0V
C
IN
(5)
Input Capacitance (A0, SI, and SCK) 6 pF V
IN
= 0V
Symbol Parameter Max. Max. Units
t
PUR
(6)
Power-up to Initiation of Read Operation 1 1 ms
t
PUW
(6)
Power-up to Initiation of Write Operation 5 5 ms
t
R
V
CC
V
CC
Power-up Ramp 0.2 50 V/msec
X9420
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P19

X9420WV14IZT1

Mfr. #:
Buy X9420WV14IZT1
Manufacturer:
Renesas / Intersil
Description:
Digital Potentiometer ICs SINGLE XDCP 10KOHM 64 TAP SPI
Lifecycle:
New from this manufacturer.
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