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3
FN8156.0
February 2, 2005
Absolute Maximum Ratings
Temperature under bias . . . . . . . . . . . . . . . . . . . . . .-65
°C to +135°C
Storage temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Voltage on CS, INC, U/D, CP, and
CM with respect to VSS . . . . . . . . . . . . . . . . . . . . . . . . -1V to +7V
V = |VCP-VCM|. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5V
Lead temperature (soldering 10 seconds) . . . . . . . . . . . . . . . . 300°C
CAUTION: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only; 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 conditions for extended periods may affect device reliability.
Capacitor Specifications
VCC = +5V, TA = 25°C, single ended mode, CM = 0V, unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS/NOTES
MIN
TYP (4)
MAX
UNIT
Absolute accuracy
±15
%
VCp
Cp terminal voltage
0
VCC
V
VCm
Cm terminal voltage
0
VCC
V
C
Capacitance increments
0.23
pF
C
Capacitance range
7pF
CTOTAL
Capacitance at Code=0
7.5
pF
CTOTAL
Capacitance at Code=31
14.5
pF
Q
Quality factor(5)
f = 315MHz
7
Resolution
5bits
INL
Absolute linearity error(1)
±0.15
lsb
DNL
Relative linearity error(2)
±0.15
lsb
TC1
CTOTAL Temperature Coefficient(5)
Differential Mode
±50
ppm/°C
VCC
Supply Voltage
2.7
5.5
V
Notes: (1) Absolute linearity is used to determine actual capacitance versus expected capacitance = C(n)(actual) - C(n) (expected) = ±0.15 Ml.
(2) Relative linearity is a measure of the error in step size between settings = C(n+1)-[C(n) + Ml] = ±0.15 Ml.
(3) lsb = least significant bit = CTOT/31.
(4) Typical values are for TA = 25°C and nominal supply voltage.
(5) This parameter is not 100% tested.
DC Electrical Specifications
VCC = 5V, TA = 25°C unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP (4)
MAX
UNIT
ICC1
VCC active current (Increment)
CS = VIL, U/D = VIL or VIH and
INC = 0.4V @ max. tCYC
50
100
A
ICC2
VCC active current (Store) (EEPROM
Store)
CS = VIH, U/D = VIL or VIH and
INC =VIH @ max. tWR
250
500
A
ISB
Standby supply current
CS = VCC - 0.3V, U/D and INC = VSS
or VCC - 0.3V
0.5
2
A
ILI
CS, INC, U/D input leakage current
VIN = VSS
-15
A
VIH
CS, INC, U/D input HIGH voltage
VCC x 0.7
VCC + 0.5
V
VIL
CS, INC, U/D input LOW voltage
-0.5
VCC x 0.1
V
CIN(5)
CS, INC, U/D input capacitance
VCC = 5V, VIN = VSS, TA = 25°C,
f=1MHz
10
pF
X90100