adc10838ciwm National Semiconductor Corporation, adc10838ciwm Datasheet - Page 6

• Manufacturer Part Number: adc10838ciwm
• Description: 10-bit Plus Sign Serial I/o A/d Converters With Mux, Sample/hold And Reference
• Manufacturer: National Semiconductor Corporation

AC CHARACTERISTICS
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
C
CLK
C
A
SCS
SDI
HDI
AT
AC
DSARS
HDO
AD
1H
DCS
CS(H)
CS(L)
SC
PD
PC
Electrical Characteristics
The following specifications apply for V
V
all other limits T
IN
OUT
b
t
0H
e b
5 0 V
Clock Frequency
Clock Duty Cycle
Conversion Time
Acquisition Time
CS Set-Up Time Set-Up Time from Falling Edge of
CS to Rising Edge of Clock
DI Set-Up Time Set-Up Time from Data Valid on
DI to Rising Edge of Clock
DI Hold Time Hold Time of DI Data from Rising
Edge of Clock to Data not Valid on DI
DO Access Time from Rising Edge of CLK When
CS is ‘‘Low’’ during a Conversion
DO or SARS Access Time from CS Delay from
Falling Edge of CS to Data Valid on DO or SARS
Delay from Rising Edge of Clock to Falling Edge of
SARS when CS is ‘‘Low’’
DO Hold Time Hold Time of Data on DO after
Falling Edge of Clock
DO Access Time from Clock Delay from Falling
Edge of Clock to Valid Data of DO
Delay from Rising Edge of CS to DO or SARS
TRI-STATE
Delay from Falling Edge of Clock to Falling Edge of
CS
CS ‘‘HIGH’’ Time for A D Reset after Reading of
Conversion Result
ADC10731 Minimum CS ‘‘Low’’ Time to Start a
Conversion
Time from End of Conversion to CS Going ‘‘Low’’
Delay from Power-Down command to 10% of
Operating Current
Delay from Power-Up Command to Ready to Start
a New Conversion
Capacitance of Logic Inputs
Capacitance of Logic Outputs
DC
A
and f
e
T
J
CLK
e a
e
25 C (Note 16)
2 5 MHz unless otherwise specified Boldface limits apply for T
Parameter
a
(Continued)
e
AV
a
e
DV
a
e a
6
5 0 V
Conditions
DC
V
REF
a
e a
(Note 11)
b
4 096 V
Typical
(1 t
1 CLK
1 CLK
5 CLK
100
14 ns)
3 0
4 5
12
14
16
30
30
20
40
40
20
10
12
5
5
2
2
1
7
CLK
DC
A
e
V
(Note 12)
b
REF
T
(1 t
1 CLK
1 CLK
5 CLK
Limits
30 ns)
J
200
2 5
4 5
40
60
12
30
25
25
50
70
45
80
50
30
5
2
b
e
CLK
e
T
MIN
V
IN
to T
MHz(max)
cycle(min)
cycle(min)
cycle(min)
e
kHz(min)
ms(max)
ms(max)
(Limits)
%(max)
ns(max)
ns(max)
ns(max)
ns(max)
ns(max)
ns(min)
ns(min)
ns(min)
ns(min)
ns(min)
%(min)
Cycles
Cycles
Clock
Clock
(max)
Units
GND
MAX
ms
ms
pF
pF