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부품번호 | X9015 기능 |
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기능 | Digitally-Controlled Potentiometer | ||
제조업체 | Xicor | ||
로고 | |||
전체 11 페이지수
Low Noise, Low Power
X9015
Digitally-Controlled Potentiometer
FEATURES
• 32 Taps
• Three-wire Up/Down Serial Interface
• VCC = 2.7V & 5V
• Operating ICC = 50µA Max.
• Standby current = 1µA Max.
• RTOTAL = 50KΩ
• Packages, SOIC-8
DESCRIPTION
The Xicor X9015 is a 32 tap potentiometer that is volatile.
The device consists of a string of 31 resistors that can be
programmed to connect the RW/VW wiper output with
any of the nodes between the connecting resistors. The
connection point of the wiper is determined by
information communicated to the device on the 3-wire
port. The 3-wire port changes the tap position by a falling
edge on the increment pin. Direction the wiper moves is
determined by the state of the Up/Down pin. The wiper
position at power up is tap #15.
The X9015 can be used in a wide variety of applications
that require a digitally controlled variable resistor to set
analog values.
FUNCTIONAL DIAGRAMS
VCC (Supply Voltage)
UP/DOWN
(U/D)
INCREMENT
(INC)
DEVICE SELECT
(CS)
CONTROL
VSS (Ground)
GENERAL
RH/VH
RW/VW
RL/VL
U/D
INC
CS
VCC
VSS
5-BIT
UP/DOWN
COUNTER
CONTROL
CIRCUITRY
31
30
29
28
ONE
OF
THIRTY TWO
DECODER
2
1
0
TRANSFER
GATES
RESISTOR
ARRAY
DETAILED
RH/VH
RL/VL
RW/VW
9900-2009.3 9/20/99 PS
1 Characteristics subject to change without notice
X9015
ABSOLUTE MAXIMUM RATINGS*
Temperature under Bias .........................–65°C to +135°C
Storage Temperature..............................–65°C to +150°C
Voltage on CS, INC, U/D, VH, VL and VCC
with Respect to VSS.................................. –1V to +7V
∆V = |VH–VL| ................................................................. 5V
Lead Temperature (Soldering 10 seconds)............. 300°C
*COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and the 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 condi-
tions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Temperature
Min.
Max.
Commercial
0°C
+70°C
Industrial
–40°C
+85°C
Supply Voltage (VCC)
X9015
X9015-2.7
Limits
5V ±10%
2.7V to 5.5V
POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
RTOTAL
VVH
VVL
RW
RW
IW
CH/CL/CW
Parameter
End to End Resistance Variation
VH Terminal Voltage
VL Terminal Voltage
Power Rating
Wiper Resistance
Wiper Resistance
Wiper Current
Noise
Resolution
Absolute Linearity(1)
Relative Linearity(2)
RTOTAL Temperature Coefficient
Ratiometric Temperature Coefficient
Potentiometer Capacitances
Min.
–20
0
0
-1
-0.2
Limits
Typ. Max. Units
+20 %
VCC
VCC
V
V
10 mW
200 400 Ω
400 1000 Ω
±1 mA
-120
dBV
3%
+1 MI(3)
+0.2 MI(3)
±300
ppm/°C
±20 ppm/°C
10/10/25
pF
Test Conditions/Notes
RTOTAL ≤ 50KΩ
IW = 1mA, VCC = 5V
IW = 1mA, VCC = 2.7V
Ref: 1kHz
Vw(n)(actual) – Vw(n)(expected)
Vw(n+1) – [Vw(n)+MI]
See circuit #3
Notes:
(1) Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage
= (Vw(n)(actual) – Vw(n)(expected)) = ±1 Ml Maximum.
(2) Relative Linearity is a measure of the error in step size between taps = VW(n+1) – [Vw(n) + Ml] = ±0.2 Ml.
(3) 1 Ml = Minimum Increment = RTOT/31.
(4) Typical values are for TA = 25°C and nominal supply voltage.
(5) This parameter is periodically sampled and not 100% tested.
4
4페이지 X9015
PERFORMANCE CHARACTERISTICS (TYPICAL)
TYPICAL NOISE
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
Frequency (KHz)
TYPICAL RTOTAL vs. TEMPERATURE
10000
9800
9600
9400
9200
9000
8800
8600
8400
8200
8000
-55 -45 -35 -25 -15 -5 5 15 25 35 45 55 65 75 85 95 105 115 125 C°
Temperature
TYPICAL TOTAL RESISTANCE TEMPERATURE COEFFICIENT
0
-50
-100
-150
PPM
-200
-250
-300
-350
-55 -45 -35 -25 -15 -5
5 15 25 35 45 55 65 75 85 95 105 115 125 °C
Temperature
7
7페이지 | |||
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |