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ADC10731 数据表(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 ADC10731
功能描述  10-Bit Plus Sign Serial I/O A/D Converters with Mux, Sample/Hold and Reference
Download  29 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

ADC10731 数据表(HTML) 6 Page - National Semiconductor (TI)

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Electrical Characteristics (Continued)
The following specifications apply for V
+ =AV+ =DV+ = +5.0 V
DC,VREF+ = 2.5 VDC,VREF− = GND, VIN− = 2.5V for Signed
Characteristics, V
IN− = GND for Unsigned Characteristics and fCLK = 2.5 MHz unless otherwise specified. Boldface limits ap-
ply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = +25˚C. (Notes 8, 9, 10)
Symbol
Parameter
Conditions
Typical
(Note 11)
Limits
(Note 12)
Units
(Limits)
REFERENCE INPUT AND MULTIPLEXER CHARACTERISTICS
On Channel Leakage Current
(Note 15)
On Channel = 5V and
Off Channel = 0V
0.4
3.0
µA (max)
On Channel = 0V and
Off Channel = 5V
−0.4
−3.0
µA (max)
REFERENCE CHARACTERISTICS
V
REFOut
Reference Output Voltage
2.5V ±0.5%
2.5V ±2%
V (max)
∆V
REF/
∆TV
REFOut Temperature Coefficient
±40
ppm/˚C
∆V
REF/
∆I
L
Load Regulation, Sourcing
0 mA
≤ I
L
≤ +4 mA
±0.003
±0.05
%/mA (max)
∆V
REF/
∆I
L
Load Regulation, Sinking
0 mA
≤ I
L
≤ −1 mA
±0.2
±0.6
%/mA (max)
Line Regulation
5V ±10%
±0.3
±2.5
mV (max)
I
SC
Short Circuit Current
V
REFOut=0V
13
22
mA (max)
Noise Voltage
10 Hz to 10 kHz,
C
L = 100 µF
5µV
∆V
REF/
∆t
Long-term Stability
±120
ppm/kHr
t
SU
Start-Up Time
C
L = 100 µF
100
ms
DIGITAL AND DC 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
+2.5
µA (max)
I
IN(0)
Logical “0” Input Current
V
IN = 0V
−0.005
−2.5
µA (max)
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
4.5
V (min)
V
OUT(0)
Logical “0” Output Voltage
V
+ = 4.5V, I
OUT = 1.6 mA
0.4
V (min)
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, V
+ = 4.5V
−30
−15
mA(min)
−I
SC
Output Short Circuit Sink Current
V
OUT=V
+ = 4.5V
30
15
mA (min)
I
D+
Digital Supply Current (Note 17)
CS = HIGH, Power Up
0.9
1.3
mA (max)
CS = HIGH, Power Down
0.2
0.4
mA (max)
CS = HIGH, Power Down,
and CLK Off
0.5
50
µA (max)
I
A+
Analog Supply Current (Note 17)
CS = HIGH, Power Up
CS = HIGH, Power Down
2.7
3
6.0
15
mA (max)
µA (max)
I
REF
Reference Input Current
V
REF+ = +2.5V and
CS = HIGH, Power Up
0.6
mA (max)
AC CHARACTERISTICS
f
CLK
Clock Frequency
3.0
5
2.5
MHz (max)
kHz (min)
Clock Duty Cycle
40
60
%(min)
%(max)
t
C
Conversion Time
12
12
Clock Cycles
5
5
µs (max)
t
A
Acquisition Time
4.5
4.5
Clock Cycles
2
2
µs (max)
www.national.com
6


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