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ADC12H030 Datasheet(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. ADC12H030
Description  Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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ADC12H030 Datasheet(HTML) 7 Page - National Semiconductor (TI)

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Converter Electrical Characteristics (Continued)
The following specifications apply for V
+ =V
A+=VD+ = +5.0 VDC,VREF+ = +4.096 VDC,VREF−=0 VDC, 12-bit + sign conver-
sion mode, f
CK =fSK = 8 MHz for the ADC12H030, ADC12H032, ADC12H034 and ADC12H038, fCK =fSK = 5 MHz for the
ADC12030, ADC12032, ADC12034 and ADC12038, R
S =25
Ω, source impedance for V
REF+ and VREF
≤ 25Ω, fully-differential
input with fixed 2.048V common-mode voltage, and 10(t
CK) acquisition time unless otherwise specified. Boldface limits apply
for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C. (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
(Limits)
REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS
C
CH
CH0–CH7 and COM
Input Capacitance
10
pF
C
MUXOUT
MUX Output Capacitance
20
pF
Off Channel Leakage (Note 16)
On Channel = 5V and
−0.01
−0.3
µA (min)
CH0–CH7 and COM Pins
Off Channel = 0V
On Channel = 0V and
0.01
0.3
µA (max)
Off Channel = 5V
On Channel Leakage (Note 16)
On Channel = 5V and
0.01
0.3
µA (max)
CH0–CH7 and COM Pins
Off Channel = 0V
On Channel = 0V and
−0.01
−0.3
µA (min)
Off Channel = 5V
MUXOUT1 and MUXOUT2
V
MUXOUT = 5.0V or
0.01
0.3
µA (max)
Leakage Current
V
MUXOUT =0V
R
ON
MUX On Resistance
V
IN = 2.5V and
850
1150
Ω (max)
V
MUXOUT = 2.4V
R
ON Matching Channel
V
IN = 2.5V and
5
%
to Channel
V
MUXOUT = 2.4V
Channel to Channel Crosstalk
V
IN =5 VPP,fIN = 40 kHz
−72
dB
MUX Bandwidth
90
kHz
DC and Logic Electrical Characteristics
The following specifications apply for V
+ =V
A+=VD+ = +5.0 VDC,VREF+ = +4.096 VDC,VREF−=0 VDC, 12-bit + sign conver-
sion mode, f
CK =fSK = 8 MHz for the ADC12H030, ADC12H032, ADC12H034 and ADC12H038, fCK =fSK = 5 MHz for the
ADC12030, ADC12032, ADC12034 and ADC12038, R
S =25
Ω, source impedance for V
REF+ and VREF
≤ 25Ω,
fully-differential input with fixed 2.048V common-mode voltage, and 10(t
CK) acquisition time unless otherwise specified. Bold-
face limits apply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C. (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
Limits
Units
(Note 10)
(Note 11)
(Limits)
CCLK, CS, CONV, DI, PD AND SCLK INPUT CHARACTERISTICS
V
IN(1)
Logical “1” Input Voltage
V
+ = 5.5V
2.0
V (min)
V
IN(0)
Logical “0” Input Voltage
V
+ = 4.5V
0.8
V (max)
I
IN(1)
Logical “1” Input Current
V
IN = 5.0V
0.005
1.0
µA (max)
I
IN(0)
Logical “0” Input Current
V
IN = 0V
−0.005
−1.0
µA (min)
DO, EOC AND DOR DIGITAL OUTPUT CHARACTERISTICS
V
OUT(1)
Logical “1” Output Voltage
V
+ = 4.5V, I
OUT = −360 µA
2.4
V (min)
V
+ = 4.5V, I
OUT = − 10 µA
4.25
V (min)
V
OUT(0)
Logical “0” Output Voltage
V
+ = 4.5V, I
OUT = 1.6 mA
0.4
V (max)
I
OUT
TRI-STATE® Output Current
V
OUT = 0V
−0.1
−3.0
µA (max)
V
OUT = 5V
0.1
3.0
µA (max)
+I
SC
Output Short Circuit Source Current
V
OUT =0V
14
6.5
mA (min)
−I
SC
Output Short Circuit Sink Current
V
OUT =VD+16
8.0
mA (min)
POWER SUPPLY CHARACTERISTICS
I
D+
Digital Supply Current
Awake
1.6
2.5
mA (max)
ADC12030, ADC12032, ADC12034
CS = HIGH, Powered Down, CCLK on
600
µA
www.national.com
7


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